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Bluetooth low energy

SmartBond™: power, size and system cost without compromise

Bluetooth® low energy is the de facto low power standard for connecting devices to each other and to the cloud. Highly integrated, the SmartBond™ SoC family features the smallest, most power efficient Bluetooth low energy solutions available and enables the lowest system costs. An extensive suite of support tooling ensures ease of use and a fast route to market.

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Bluetooth Low Energy
SmartBond™ Product Portfolio Download PDF
Part Number DA14699/7/5/1 DA14683 DA14682 DA14586 DA14585 DA14531/0 DA14531MOD
  Product Description The world’s most advanced wireless microcontroller product family Single-chip high-security Bluetooth 5 solution with expandable memory Small size, low power and most integrated Bluetooth 5 SoC The world’s smallest and lowest power Bluetooth 5.1 System-on-Chip which enables the next 1billion IoT devices The DA14531 SmartBond TINY™ Module, based on the world’s smallest and lowest power Bluetooth 5.1 system-on-Chip
TYPE
SoC      
SiP          
Module            
TECHNOLOGY
Bluetooth® LE 5.2 5.0 5.0 5.0 5.0 5.1 5.1
2.4 GHz proprietary            
CORE SYSTEM
CPU 96MHz Arm
Cortex-M33
Floating Point DSP Extension
96MHz Arm
Cortex-M0
96MHz Arm
Cortex-M0
16MHz Arm
Cortex-M0
16MHz Arm
Cortex-M0
16MHz Arm
Cortex-M0+
16MHz Arm
Cortex-M0+
RAM 512kB
384kB (691)
128kB 128kB 96kB 96kB 48kB 48kB
ROM
OTP
128kB
4kB
128kB
64kB
128kB
64kB
128kB
64kB
128kB
64kB
144kB
32kB
144kB
32kB
Flash QSPI Flash QSPI Flash 1024kB 256kB SPI Flash SPI Flash 128kB
Crystals 32MHz+32kHz 32/16MHz+32kHz 32/16MHz+32kHz 16MHz+32kHz 16MHz+32kHz 32MHz 32MHz
POWER
Internal DCDC Buck Buck Buck Buck&Boost Buck&Boost Buck&Boost Buck
External System Power Rails 2x1.8V, 1x3.3V 2x1.8V, 1x3.3V 2x1.8V, 1x3.3V        
Charger ● ● ● ○        
SECURITY
AES/SHA 256/512 256/512 256/512 128 128 128 128
ECC/TRNG ● ● ● ● ● ●     ○ ● ○ ●
Secure Key Handling        
RADIO
Frequency 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz 2.4GHz
Tx Power 6dBm 0dBm 0dBm 0dBm 0dBm 2.5dBm 2.2dBm
Rx Sensitivity -97dBm -94dBm -94dBm -93dBm -93dBm -94dBm -94dBm
PERIPHERALS
UART/SPI/I2C 3/2/2 2/2/2 2/2/2 2/1/1 2/1/1 2/1/1 2/1/1
QSPI XiP
On-the-fly decryption
2/2/2/1
1
1
       
USB FS/HS 1 1 1        
Timers/PWM/RTC 4/4/1 3/3 3/3 4/2 4/2 3/2/1 3/2/1
I2S,PCM/PDM 8CH/2CH 8CH/2CH 8CH/2CH 8CH/2CH 8CH/2CH    
LCD ● ● ● ○            
Keyboard/QDEC/IR   ● ● ● ● ● ● ● ● ○ ● ● ○ ● ● ○ ● ● ○
ADC 8CH 10b
8CH 14b
8CH 10b 8CH 10b 4CH 10b 4CH 10b 4CH 10b 4CH 10b
LED driver 2 2 ○ ○ 3 3        
Temperature sensor    
Other Haptics / Motor Controller            
APPLICATIONS
Appliances
Asset Tracking    
Beacons      
Consumer Electronics
Direction finding            
Gaming and AR/VR        
Industrial Automation      
Medical and Healthcare
MESH networks        
PC Peripherals
Smart Home and Building
Wearables  
Wireless Ranging (WiRa)            
Smart door-locks        
IoT sensors
PACKAGES
Type#Pins (#GPIO)
Dimensions
VFBGA100 (55)
5x5 mm
(699/697)
WLCSP53 (21)
3.41x3.01 mm

AQFN60 (37)
AQFN60 (31)
6x6 mm
QFN40 (24)
5x5 mm
WLCSP34 (14)
2.40x2.66 mm

QFN40 (25)
WLCSP17 (6)
1.7x2.05 mm
(531 only)
MOD16 (9)
12.5x14.5 mm
Operating Temperature -40 to 85°C -40 to 85°C -40 to 85°C -40 to 85°C -40 to 85/105°C -40 to 85°C -40 to 85°C
Supply Voltage Range 2.4 to 4.75V 1.7 to 4.75V 1.7 to 4.75V 0.9 to 3.3V 0.9 to 3.3V 1.1 to 3.3V 1.8 to 3.3V
DEVELOPMENT KITS DA14695 PRO
DA14695 USB
DA14683 PRO
DA14683 USB
DA14683 PRO
DA14683 USB
DA14585 PRO
DA14585 BASIC
DA14585 PRO
DA14585 BASIC
DA14531/0 PRO DA14531 USB DA14531MOD PRO
Partner Modules
Part Number DA14531 BDE-BLEM301 DA14531 Hongjia
HJ-531IMF
DA14531 Honjia
HJ-131IMH
DA14585 / AzureWave AW-CU362 DA14585 / Inventek
ISM14585-L35
DA14585 / Panasonic / PAN1740A
Product Description BDE-BLEM301 is a highly integrated Bluetooth® 5.1 Low Energy Module based on Dialog ultra-low power DA14531 SoC Ultra-small, ultra-low power Bluetooth 5.1 SIP module with the SmartBond DA14531 TINY. 5 x 4.75 x 1.3mm in a LGA25 package Ultra-small, ultra-low power Bluetooth 5.1 SIP module with the SmartBond DA14531 TINY. 4 x 4 x 1.3mm in a LGA17 package DA14585 BLE5.0 SoC, 1Mbit SPI Flash, embedded antenna DA14585 BLE5.0 SoC, up to 8Mbit SPI Flash on board, optional SkyWorks PA on board for increased TX power 9.0 x 9.5 x 1.8mm, integrated antenna and Pre-Certified, ARM® Cortex®-M0, 96kB SRAM, 64kB OTP
Applications Beacons | Remote Controls | Proximity tags | Low Power Sensors | Commissioning/Provisioning | Toys | Serial port transmission | Smart home | Smart meters | Smart medical devices Tiny medical applications | Beacons | Smart toys | Smart locks | Remote Controls | Industrial smart devices Tiny medical applications | Beacons | Smart toys | Smart locks | Remote Controls | Industrial smart devices IoT Applications | Connected Sensors | Connected Medical | Environmental Monitoring | Beacons | Home Automation | Industrial Connectivity over BLE | Point of Sale Applications | Building Infrastructure | Temperature & Environmental Monitoring | Connected Toys IoT Applications | Voice-controlled remote controls | Keyboard & Mouse | Connected Sensors | Beacons and Tags | Home Automation | Connected Toys | Consumer Appliances Industrial IoT | Connected Sensors | Human Interface Devices | Smart Home/Building | Smart Lighting Systems | Metering | Smart Home Nodes | Beacons | Proximity Tags | Tracker | Remote Controls
Product Security Vulnerabilities
Read more
Legacy Products
DA14680/1 Not Recommended for New Designs; For Improved Performance – See DA14682/3
DA14580/1/2/3 Not Recommended for New Designs; For Improved Performance – See DA14585/6 and DA14530/1

 

bleuio dongle

A faster way to new Bluetooth® applications

Swedish IoT company Smart Sensor Devices AB believes developing new Bluetooth applications should be as easy as using them. That’s why they created the BleuIO Bluetooth Low Energy USB dongle using Dialog’s Bluetooth SoCs– a smart, highly integrated device that lets developers create new Bluetooth LE 5.0 applications with minimal effort.

web_bluetooth_blog

Motion Aware Thin Bluetooth® Low Energy Beacon Solution for Smart Labels

A beacon is a tiny Bluetooth radio battery-powered transmitter. Beacons provide an inexpensive broadcasting solution capable of autonomous operation over very long periods of time. In this paper, we will show how beacons can support extended functionality by employing a range of peripherals to allow them to process and display data while maintaining autonomous operation.

Success Stories banner

Smart devices that don’t need charging?

Smartcube Co. produces modular chips that convert everyday objects like sport shoes and ID badges into smart, connected IoT devices. Remarkably, they aim to produce chips that are so energy-efficient, the resulting devices never need charging! Dialog’s SmartBond Bluetooth low energy range is helping them achieve their power consumption goals at low cost while delivering excellent reliability.

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Product ID Application Standard Memory size FLASH (Mb) Memory size ROM (kB) Memory size OTP (kB) Memory size RAM (kB) GPIOs (max) Power supply min (V) Power supply max (V) Tx current (mA) Rx current (mA) Output power (dBm) Sensitivity (dBm) Microcontroller Recommended for new Designs Package Max system clock (MHz) Flexible system clock Execute from FLASH HW crypto engine QSPI SPI UART I2C USB PDM Documents
                                                       
DA14580-01UNA Beacon & Proximity Health & Fitness Human Interface Devices Smart Home BLE 4.2 Core specification 0 84 32 50 14 0.9 3.6 4.8 5.1 0 -93 M0 No WL-CSP34,2.5*2.5*0.5mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14580-01AT2 Beacon & Proximity Health & Fitness Human Interface Devices Smart Home BLE 4.2 Core specification 0 84 32 50 24 0.9 3.6 4.8 5.1 0 -93 M0 No QFN40,5*5*0.9mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14580-01A32 Beacon & Proximity Health & Fitness Human Interface Devices Smart Home BLE 4.2 Core specification 0 84 32 50 32 0.9 3.6 4.8 5.1 0 -93 M0 No QFN48,6*6*0.9mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14581-00UNA Wireless Charging Host Controller Interface BLE 4.2 Core specification 0 84 32 50 14 0.9 3.6 4.8 5.1 0 -93 M0 No WL-CSP34,2.5*2.5*0.5mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14581-00000VRA Wireless Charging Host Controller Interface BLE 4.2 Core specification 0 84 32 50 14 0.9 3.6 4.8 5.1 0 -93 M0 No WL-CSP34,2.5*2.5*0.3mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14581-00AT2 Wireless Charging Host Controller Interface BLE 4.2 Core specification 0 84 32 50 24 0.9 3.6 4.8 5.1 0 -93 M0 No QFN40,5*5*0.9mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14583-01F01AT2 Beacon & Proximity Health & Fitness Human Interface Devices Smart Home BLE 4.2 Core specification 1 84 32 50 24 2.35 3.6 4.8 5.1 0 -93 M0 No QFN40,5*5*0.9mm 16 No No Yes 0 1 2 1 0 0 Documentation
DA14585-00000VV2* Beacon & Proximity Health & Fitness Human Interface Devices Smart Home Remote Controls with voice commands over BLE BLE 5.0 Core specification + supplemental features 0 128 64 96 14 0.9 3.6 4.8 5.1 0 -93 M0 Yes WL-CSP34,2.4*2.66*0.5mm 16 No No Yes 0 1 2 1 0 1 Documentation
DA14585-00000AT2* Beacon & Proximity Health & Fitness Human Interface Devices Smart Home Remote Controls with voice commands over BLE BLE 5.0 Core specification + supplemental features 0 128 64 96 25 0.9 3.6 4.9 5.3 0 -93 M0 Yes QFN40,5*5*0.9mm 16 No No Yes 0 1 2 1 0 1 Documentation
DA14586-00F02AT2* Beacon & Proximity Health & Fitness Human Interface Devices Smart Home Remote Controls with voice commands over BLE BLE 5.0 Core specification + supplemental features 2 128 64 96 24 1.8 3.6 4.9 5.3 0 -93 M0 Yes QFN40,5*5*0.9mm 16 No No Yes 0 1 2 1 0 1 Documentation
DA14680-01F08A92 Wearables Smart Home Apple HomeKit Human Interface Devices Other rechargeable device BLE 4.2 Core specification + optional features 8 128 64 128 31 1.7 4.75 5.2 6 0 -94 M0 No AQFN60,6*6*0.8mm 96 Yes Yes Yes 0 2 2 2 1 1 Documentation
DA14681-01000U2 Wearables Smart Home Apple HomeKit Human Interface Devices Other rechargeable device BLE 4.2 Core specification + optional features 0 128 64 128 21 1.7 4.75 5.2 6 0 -94 M0 No WL-CSP53,3.4*3.0*0.5mm 96 Yes Yes Yes 1 2 2 2 1 1 Documentation
DA14681-01000A92 Wearables Smart Home Apple HomeKit Human Interface Devices Other rechargeable device BLE 4.2 Core specification + optional features 0 128 64 128 37 1.7 4.75 5.2 6 0 -94 M0 No AQFN60,6*6*0.8mm 96 Yes Yes Yes 1 2 2 2 1 1 Documentation
DA14682* Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications BLE 5 8 128 64 128 31 1.7 4.75 5.2 6 0 -94 M0 Yes AQFN60,6*6*0.8mm 96 Yes Yes Yes 0 2 2 2 1 1 Documentation
DA14683* Industrial Human Interface Devices Virtual reality remotes Banking BLE 5 0 128 64 128 37 1.7 4.75 5.2 6 0 -94 M0 Yes AQFN60,6*6*0.8mm 96 Yes Yes Yes 1 2 2 2 1 1 Documentation
DA14691-00000HQ2* Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications BLE 5.0 Core specification + optional features Optional external 128 4 384 44 2.4 4.75 3.5 2.2 6 -97 M33 Yes VFBGA86, 6 x 6 x 0.55 mm 96 Yes Yes Yes 1 2 3 2 1 1 Documentation
DA14695-00000HQ2* Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications BLE 5.0 Core specification + optional features Optional external 128 4 512 44 2.4 4.75 3.5 2.2 6 -97 M33 Yes VFBGA86, 6 x 6 x 0.55 mm 96 Yes Yes Yes 1 2 3 2 1 1 Documentation
DA14697-00000HR2* Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications BLE 5.0 Core specification + optional features Optional external 128 4 512 55 2.4 4.75 3.5 2.2 6 -97 M33 Yes VFBGA100, 5 x 5 x 0.475 mm 96 Yes Yes Yes 2 2 3 2 1 1 Documentation
DA14699-00000HR2* Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications BLE 5.0 Core specification + optional features Optional external 128 4 512 55 2.4 4.75 3.5 2.2 6 -97 M33 Yes VFBGA100, 5 x 5 x 0.475 mm 96 Yes Yes Yes 2 2 3 2 1 1 Documentation
DA14531 Disposables Beacons Asset tracking Connected health RCU BLE 5.1 Core specification + supplemental features 0 144 32 48 12 0.9 3.6 3.5 2.2 0 -94 M0 + Yes QFN24*2.2*3.04mm 16 Yes Yes Yes 0 1 2 1 0 0 Documentation

*Recommended for new designs

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Wearables

Wearable electronics is entering every facet of our daily life, giving us new ways to improve our lives: from productivity to health and lifestyle. Revealing previously unattainable information about ourselves and our surroundings, they help advise us.

SmartBond Solutions: DA14682/3, DA14585/6, DA1469x

Proximity & Asset Tracking

Proximity applications are based on knowing and alerting you of the distance between two devices, such as keys or wallets, if the label goes out of range. Proximity information can also be used in asset tagging for inventory and automated access control or monitoring in cold chain tracking.

SmartBond Solutions: DA1469x, DA14531

Connected Medical

Connected medical offers solutions in allowing patients to take care of their own health condition in monitoring, sending alerts and making drug delivery easy. Bluetooth low energy is the technology to connect health products to the cloud. Examples of connected medical products are blood pressure meters, heart rate monitors, glucose meters and patches, body temperature meters, virus testers and drug delivery with injectables or via patches through the skin.

SmartBond Solutions: DA14531, DA1469x

Smart Home & Buildings

Long dreamt of, the Smart Home is now becoming a reality. We can monitor and control our home security, lighting, appliances and heating, ventilation and air-conditioning (HVAC) from our smartphones and tablets – even remotely via the cloud.

SmartBond Solutions: DA14682/3, DA14585/6, DA14531

Computing & Gaming

Bluetooth has played a key role in connecting computing and gaming peripherals since its introduction. It provides a simple and proven connectivity option for a host of new and emerging peripherals, while securing access to the most personal data.

As electronic equipment becomes smarter and more mobile, the way we interact with it is changing. We want more control, more convenience and less clutter, which is driving huge growth in the wireless HID market. Bluetooth low energy is per default supported in recent versions of windows, which truly enables the wireless desktop.

SmartBond Solutions: DA14585/6, DA1469x

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SmartBond™ SDK Overview Product Supported
SDK6 DA14585/6 + DA14531/0
SDK10 DA1469x
SDK1 DA14682/3

Also available for DA14680/1 but not recommended for new designs

SDK5 DA14580/1/3

Not recommended for new designs

 

SmartBond™ Development tools overview Product Supported
Dialog Smartbond Flash Programmer DA14531/0, DA1458x and DA1469x
SmartSnippets Toolbox All
SmartSnippets Studio All
Production Line Tool  

 

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Social distancing

Embedded Software Applications for Social Distancing Applications

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Bluetooth Low Energy Range Extender

The SmartBond™ BLE Range Extender reference design enables you to take full advantage of the output power of the Bluetooth low energy standard to extend the range of your applications.

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Smart USB Dongle

The Smart USB Dongle device is a fully integrated USB to Bluetooth® LE solution, based on SmartBond™ DA14683 high-security Bluetooth LE SoC.

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emWin

The emWin embedded graphics library developed by SEGGER Microcontroller is now offered by Dialog Semiconductor in library form for free commercial use with the SmartBond® DA1469x wireless microcontrollers.

Read more

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Our SmartBond products are supported by development kits and a profiling to help you create applications that exploit the unique benefits of the SmartBond family to the fullest. These tools help you minimize your time to market.

Hardware Development Kits

DA14531 DA14531 - USB, DA14531 - Pro
DA14585 DA14585 - BasicDA14585 - Pro
DA14683 DA14683 - USBDA14683 - Pro
DA14695 DA14695 – USB, DA14695- Pro
All Bluetooth LE Products Production Line Tool

 

Application Focused Development Kits

 

Discontinued Kits

DA14583 DA14583 IoT Sensor Development Kit
The DA14585 IoT is an upgraded sensor development kit with more supported sensors and cloud connectivity
DA14681 DA14681 HomeKit Development Kit
DA14681 DA14681 Wearable Development Kit

 

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Japan-based company mainly engaged in the manufacture and sale of electronic components and audio equipment. 

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Bithium - your partner in the design of innovative wireless embedded systems (firmware, hardware, software). Bithium keeps a clear focus on achieving project targets and customer satisfaction. 

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Cambridge Consultants is a premium multidisciplinary supplier of innovative product development engineering and technology consulting. We help clients deliver groundbreaking products to market fast, with cutting-edge technology that often results in new IP generation for our clients. 

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Cloud2GND is a global engineering services firm specializing in standards-based wireless connectivity solutions. Our clients range from innovative start-ups to large semiconductor companies and standards organizations. We offer deep domain knowledge in embedded systems, especially around Bluetooth technology, where we provide consulting, design, development, test, deployment and maintenance services for our clients and their customers. Our engineering services division offers a flexible engagement model acting as a specialized team of standards experts or a complete engineering team able to manage your project needs to completion.

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Lauterbach is the leading manufacturer of complete, modular and upgradeable microprocessor development tools worldwide with experience in the field of embedded designs since 1979. The engineering team develops and produces highly proficient and specialized Development Tools, which are utilized all over the world under the brand TRACE32®.

LitePoint is the leading provider of test solutions for the world's leading manufacturers of wireless

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Murata is a global leader in the design, manufacture and supply of advanced electronic materials, leading edge electronic components, and multi-functional, high-density modules.

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Panasonic Industrial Devices Sales Company of America. Many products sold by Fortune 500 companies are in fact Powered by Panasonic technology, and we are proud to provide manufacturers with the performance, quality, and reliability that are synonymous with the Panasonic brand. The Power of Panasonic Industrial Devices brings strategic innovations to our customers’ product development process.

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TDK is one of the largest electronic components manufacturers in the world.

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Tieto is the leading product development services company enabling semiconductor, connected device and communication infrastructure manufacturers, build next generation connected devices & things, cars and networks.

See more

Wireless technology experts. Xtel's core competency is technology development, which makes up a substantial part of its business. It utilizes state-of-the-art technologies to create the next product or technical platform for its partners. Among its clients, it counts some of the world’s leading tech innovators. It is typically tasked with the development of wireless technology, protocols, and ultralow power designs and products. Xtel has in-depth knowledge of the product development and maturation of wireless technologies. It typically uses proven and tested standard components or platforms, helping its partners to reduce time to market. Where a technology boost is needed, it develops complete products or assist a development team in the company. Its technological solutions and innovative skills are recognized by its partners.

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Quuppa is a leading technology provider for real-time locating systems (RTLS) and indoor positioning systems (IPS). The company was established in 2012 by a team of experienced engineers and scientists as a spin-off from Nokia Research Center and has since successfully commercialised its offering, creating a complete product platform: the Quuppa Intelligent Locating System™, a one-size-fits-all technology platform for location-based services and applications. Our platform offers companies a complete software suite of tools for planning, simulating and commissioning projects, that can be used as a solid and scalable foundation for building various location-based solutions. The open API makes it fast and easy to take the platform into use. To date, the Quuppa Ecosystem has more than 200 partners around the world who use Quuppa’s open, versatile and reliable positioning platform to deliver accurate, real-time and cost-effective location solutions to companies in a range of industries, including manufacturing and logistics, retail, healthcare, sports, law enforcement and security, government, asset tracking.

See more

 

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DA14585

1 week ago

Power consumption of DA14585 during sleep mode

Posted by Jin-Hoon Kim 155 points 9 replies
0 upvotes

Hi Dialog, 

 

I am trying to wearable develop embedded system using DA14585. 

The thing now I am figuring out is that the minimizing the power consumption of DA14585. 

 

Based on the tutorial, if we set sleep_stat_t  app_defalut_sleep_mode = ARCH_EXT_SLEEP_ON in user_config.h file, the current consumption is around few micro amp range. 

Unfortunately however, when I tried to measure the operating current using multimeter by connecting probe to the J9 header, the operation current is above 3 mA. 

Even I make device into deep sleep by using arch_set_deep_sleep(false) command, the operation current was also over 2 mA. 

Could you let me know how to deal this issue?

Thanks

Jin-Hoon

1 week ago

PM_Dialog

Hi Jin-Hoon,

Thanks for your question online.

This is the correct way to configure the DA14585 into extended sleep mode.

However, the device goes inti sleep between advertising or connection intervals.

Does the device just advertise, or is it connected to a peer device?

With the procedure you describe, I think that you are measuring the average current consumption : in sleep and in active mode.

In that case, the average current consumption is closely depended on the adverting or connection intervals.

For example, if you are using a big advertising interval, then the chips is sleeping more time and as a result the average power consumption will be lower.

Thanks, PM_Dialog

1 week ago

Jin-Hoon Kim 155 points

Hi Dialog, 

Thank you so much for your reply. During the power consumption measurement, the device does not connect to the peer device. 

Unfortunately I already changed the advertising interval by changing .intv_min = MS_TO_BLESLOTS() and .intv_max = MS_TO_BLESLOTS() to 5 sec, but the current is still over 2~3 mA. 

Should I need to power down BLE power domain or 16M crystal oscillator manually? Also I attached a photo of my power consumption measurement setup. Please let me know if it is wrong. 

Thank you

Jin-Hoon

Power measurement setup

1 week ago

PM_Dialog

Hi Jin-Hoon,

No, you should not need to power down the 16MHz XTAL. 

If you are using an SPI Flash, you should power it down.

SInce you have the Pro-DK, can you please use the Power Profiler from the SmartSnippets Studio and share a snapshot? 

Thanks, PM_Dialog

1 week ago

Jin-Hoon Kim 155 points

Hi Dialog, 

Thank you for the comment. I tested your comment using spi_flash_power_down() command and here is the screen shot of the SmartSnippets Studio power profiler. 

It also showed similar current consumption. When I look into the sleep mode management function in the arch_main.c, it seems that when DA14585 is in the extended sleep mode, it uses 16M RC oscillator, not the 32 K crystal or RC oscillator. Is it the main reason for the high current consumption? 

I attached the arch_switch_clock_goto_sleep function, which seems to control the clock during sleep mode.

/**
 ****************************************************************************************
 * @brief Manage the clocks and go to sleep.
 * @param[in] current_sleep_mode The current sleep mode proposed by the system so far
 ****************************************************************************************
 */
__STATIC_INLINE void arch_switch_clock_goto_sleep(sleep_mode_t current_sleep_mode)
{
    if ( (current_sleep_mode == mode_ext_sleep) || (current_sleep_mode == mode_ext_sleep_otp_copy) )
    {
#if !defined (__DA14531__)
        SetBits16(CLK_16M_REG, XTAL16_BIAS_SH_ENABLE, 0);      // Set BIAS to '0' if sleep has been decided
#endif

#if (USE_POWER_OPTIMIZATIONS)
#if defined (__DA14531__)
    SetBits16(CLK_RC32M_REG, RC32M_DISABLE, 0);             // Enable RC32M
#else
    SetBits16(CLK_16M_REG, RC16M_ENABLE, 1);                // Enable RC16M
#endif

    for (volatile int i = 0; i < 20; i++);

    SetBits16(CLK_CTRL_REG, SYS_CLK_SEL, 1);                // Switch to RC16M (DA14585/586) or RC32M (DA14531)

#if defined (__DA14531__)
    while( (GetWord16(CLK_CTRL_REG) & RUNNING_AT_RC32M) == 0 );
#else
    while( (GetWord16(CLK_CTRL_REG) & RUNNING_AT_RC16M) == 0 );
#endif
    SetWord16(CLK_FREQ_TRIM_REG, 0);                        // Set zero value to CLK_FREQ_TRIM_REG
    // Do not disable the XTAL16M (DA14585/586) or XTAL32M (DA14531).
    // It will be disabled when we sleep...
#endif // (USE_POWER_OPTIMIZATIONS)
    }
}

 

Thank you

Jin-Hoon

power profiler

 

1 week ago

PM_Dialog

Hi Jin-Hoon,

Please refer to our AN-B-075: DA14531 Hardware Guidelines document.

In active mode the 32MHz XTAL is used.

In sleep mode, there are the following option :

  • External XTAL32K oscillator
  • Internal RCX clock
  • Use the selection in the corresponding field of OTP Header

The CFG_LP_CLK macro in da1458x_config_advanced.h header file is responsible for the Low Power Clock selection. What is the configuration on your SW?

Can you please run any of the SDK examples that is using extended sleep mode so that you can test the power consumption?

Please also check the DA14531 Sleep Mode Tutorial (HTML) tutorial.

According to the attached image, if seems that the chip wakes up and stays in active mode more time.

Thanks, PM_Dialog

1 week ago

Jin-Hoon Kim 155 points

Hi Dialog, 

 

Thank you so much for the reply! 

First, we found out that when V_FL pin on the motherboard were connected, the current value was increased up to few mA. When we removed the connector pin, the current was significantly decreased. 

However, there is still about ~ 300 micro A of current was flowing while the device is in sleep mode. 

Interestingly, when I left the debug session from the Keil uvision, the current become ~ 3 micro A, which is similar value of sleep current of DA14585 from you datasheet. 

Does it mean the device is not fully sleep mode while debug session is running? Or does Jtag consumes some current while operation? 

For your comments, in our firmware, the CFG_LP_CLK was set to LP_CLK_XTAL32.  and I agree my device is wakes up longer time than sleeping time. There is any method to make device go into more sleep time? 

 

Thank you.

Jin-Hoon

accepted answer!

2 days ago

PM_Dialog

Hi Jin-Hoon,

>>> First, we found out that when V_FL pin on the motherboard were connected, the current value was increased up to few mA. When we removed the connector pin, the current was significantly decreased.

This is expected. You can power-down the flash and the power consumption will get decreased. Please check that API - spi_flash_power_down().

>>> Interestingly, when I left the debug session from the Keil uvision, the current become ~ 3 micro A, which is similar value of sleep current of DA14585 from you datasheet. Does it mean the device is not fully sleep mode while debug session is running? Or does Jtag consumes some current while operation?

This also expected… When the JTAG is attached, the chip is not sleeping. If you are booting from System-RAM using Keil IDE to download FW onto target device, the debugger must be da-attached. Otherwise, the power consumption will be much more increased.

 

>>> For your comments, in our firmware, the CFG_LP_CLK was set to LP_CLK_XTAL32.  and I agree my device is wakes up longer time than sleeping time. There is any method to make device go into more sleep time?

I believe this depends on you SW… Did you use an of the SDK example? For instance, the ble_app_sleepmode example of the SDK.

Thanks, PM_Dialog

2 days ago

Jin-Hoon Kim 155 points

Hi Dialog, 

Thank you so much for your answer. It helps me solving the problem.

Best,

Jin-Hoon

 

1 day ago

PM_Dialog

Hi Jin-Hoon,

Thanks for accepting my answer and glad that you figure it out. 

Thanks, PM_Dialog