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CODECs & Amplifiers

Full-range, high fidelity audio codecs

Our audio technology allows the capture of speech and audio with high quality and low power consumption while at the other end of the audio channel enables speaker playback at maximum volume and power efficiency while extending battery usage time.

 

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Improving customer access to voice recognition functionality

We offer a range of low power, Hi-Fi audio CODECs and Class Ds with different features and in different packages suitable for a variety of low power, digital portable audio products. CODECs are designed to offer different levels of dynamic range and improve the power consumption for the record and playback paths by optimizing the always ON mode and utilizing efficient charge pump technologies.

CODEC Product Portfolio
Product Description Applications
Ultra Low Power Stereo Audio CODEC
Portable Media Players  I Personal Navigation Devices
Ultra Low Power Stereo Audio CODEC with 650µW Always-On Mode
Portable Media players I Headphones I Headsets I Embedded Applications  I Wearables I
Arduino Compatible Development Systems
Ultra Low Power Stereo Audio CODEC with differential headphone driver
Headsets | Hearables | Headphones
Ultra Low Power Stereo Audio CODEC with single ended headphone driver
Headsets | Headphones | Portable Media Players | Audio Accessories
DA7219 Audio CODEC with Advanced Accessory Detect Headphone accessories | Tablets and eBooks | Gaming controllers | Remote controllers | Portable audio applications | Chromebooks
DA7400 Stereo high-performance CODEC Configurable headsets (Bluetooth / USB-C) | IoT devices | Consumer Hi-Res Audio systems
DA7401 Mono high-performance CODEC with ANC TWS earbuds | In-ear headsets (USB-C) | Hearables
DA7402 Stereo high-performance CODEC with ANC Wireless (Bluetooth) over- and on-ear headphones | Wired (USB-C) over- and on-ear headphones

 

Amplifier Product Portfolio
Product Description Applications
DA7202 10W Mono Class D for Dual Cell
Ultrabooks | Tablets | Personal Navigation Devices | Speaker Accessories | Handheld Gaming

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Inquiries Distributors and Representatives Audio & Voice portal
Product ID Package Description ADC SNR A-weighted support(dB) @ 48kHz DAC SNR A-weighted support(dB) @ 48kHz Power consumption Record Power consumption Playback Headphone Pout Control Features Documents
                     
DA7210 49-WLCSP 0.4mm Ultra Low Power Stereo CODEC 96 @ 2.5V 102 @ 2.5V 3.5mW @ 1.8V 2.5mW @1.8V   2/4-wire General purpose filter engine Documentation
DA7211 36-WLCSP 0.5mm Ultra Low Power Stereo CODEC 96 @ 2.5V 102 @ 2.5V 3.5mW @ 1.8V 2.5mW @1.8V 2 x 58mW @ 2.5V into 16Ω 2-wire General purpose filter engine Documentation
DA7212 34-WLCSP 0.5mm (Staggered) Ultra low power Stereo CODEC with 650µW always On mode 90 @ 1.8V 100 @ 1.8V 2.0mW @ 1.8V 3.1mW @ 1.8V 2 x 67mW @ 2.5V 2-wire 5bd EQ, ALC, Noise gate, Beep generator Documentation
DA7217 32-WLCSP 0.5mm (Staggered) Ultra low power Stereo CODEC with differential outputs 105 @ 1.8V 110 @ 1.8V 2.5mW @ 1.8V 4mW @ 1.8V 2 x 57mW @ 2.5V 2-wire 5bd EQ, 3bd Sidetone, ALC, Noise gate, Beep generator Documentation
DA7218 32-WLCSP 0.5mm (Staggered) Ultra low power Stereo CODEC with single-ended outputs 105 @ 1.8V 110 @ 1.8V 2.5mW @ 1.8V 4mW @ 1.8V 2 x 58mW @ 1.8V 2-wire 5bd EQ, 3bd Sidetone, ALC, Noise gate, Beep generator Documentation
DA7219 32-WLCSP 0.5mm (Staggered) Ultra low-power audio codec with Advanced Accessory Detection (AAD) 90 @ 1.8V 100 @ 1.8V 2.75mW @ 1.8V 3.4mW @ 1.8V 2 x 70mW @ 2.5V 2-wire Advanced Accessory detection, polarity switching Documentation
DA7400 32-WLCSP 0.4mm High Performance Stereo Codec 95 @ 1.8V 115 @ 1.8V 3mW @ 1.8V 8.5mW @ 1.8V 2 x 67mW @ 1.8V 2-wire General purpose filter engine Documentation
DA7401 32-WLCSP 0.4mm Mono Active Noise Cancellation Codec 95 @ 1.8V 115 @ 1.8V 3mW @ 1.8V 5.8mW @ 1.8V 1 x 100mW @ 1.8V 2-wire Hybrid Active Noise Cancellation, Audio Processing Unit Documentation
DA7402 32-WLCSP 0.4mm Stereo Active Noise Cancellation Codec 95 @ 1.8V 115 @ 1.8V 3mW @ 1.8V 8.5mW @ 1.8V 2 x 67mW @ 1.8V 2-wire Hybrid Active Noise Cancellation, Audio Processing Unit Documentation
Product ID Package Description Prms Supply (V) Efficiency SNR A-weighted(dB) THD_N (dB) PSRR @ 217Khz (dB) Documents
DA7202 9-WLCSP 0.5mm 10W Mono Class D for Dual Cell 10.2W @ 8.2V 10% THD 4Ω 4.5 - 9.0 90% @ 8.2V, Pout = 3.5W 104dB @ 8.2W 90dB @ 3.0W 78 Documentation

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Inquiries Distributors and Representatives Audio & Voice portal

Visit our Audio & Voice portal here

 

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DA7211

8 months ago

DA7211 ALC

Posted by fbc 10 points 3 replies
0 upvotes

We use only the R MIC input + PGA + R ADC, but we can’t have the ALC work as expected.

The configuration is as follows:

  • R MIC gain @ +12dB
  • R mixer input is R MIC only

 

However, when the ALC is enabled with the following settings:

  • ALC_MAX = 0x3C (-0.5dB)
  • ALC_MIN = 0x3B (-2dB)
  • Other registers at default values

The issue is that the signal chain gain never changes, and it is similar to the gain that we have when we disable the ALC and set the IN_PGA gain = -4.5dB.

So the ALC seems to basically always setting the IN_PGA gain to the minimum, and never changes it, whatever the input level.

 

Can you also clarify the following :

  1. Can you confirm the ALC analog sampling is made after the R mixer and before the IN PGA?
  2. What does it mean, -0.5dB in ALC_MAX? Is it the ADC Full-Scale minus 0.5dB?
  3. Can you confirm that the ACL is only setting the R IN PGA gain? And that the PGA gain is thus comprised between -4.5dB and +18dB?
  4. We don’t understand why the ALC always sets the minimum PGA gain whatever the input signal. Normally, if we have a signal lower than -2dB, shouldn’t the ALC increase the IN PGA gain so that we have an ADC value of FS-2dB?

 

Here is a dump of our configuration:

 

                DA7211_PLL_DIV3,         0b01010000,                      // Bypass PLL, MCLK = 10..20MHz

                DA7211_PLL,                     0b00001011,                      // Set the FS = 48kHz

 

                DA7211_CONTROL,        0b10010111,                      // Noise Suppression OFF, BIAS ON, VDDIO < 2.65V, Digital Regulator ON

                DA7211_IN_GAIN,         0b00110011,                      // L/R PGA gain : 0dB

                DA7211_INMIX_R,         0b10000001,                      // Enable MIX_R mixer + PGA, connected to MIC_R

                DA7211_ADC,                   0b10000001,                      // ADC R enabled, ALC enabled

                DA7211_MIC_R,              0b10000011,                      // MIC R : enable the MIC R amplifier @ +12dB

                DA7211_DAI_CFG1,       0b00000000,                      // DA7211 is I2S slave, 16-bits stereo

                DA7211_DAI_CFG3,       0b10001000,                      // Enable DAI and DATOUT

 

                DA7211_ALC_MAX,       0x3C,                                    // ALC MAX - enable @ -0.5dB

                DA7211_ALC_MIN,        0x3B,                                    // ALC MIN - disable @ -2dB

 

                DA7211_STARTUP1,       0b00000001,                      // Finally enable the DA7211

8 months ago

ED_Dialog

Hello fbc,

I will look into this and get back to you.

Kind regards.
Elliott 

8 months ago

ED_Dialog

Hello fbc,

It would seem my fellow FAE is already in direct contact, i will let him respond directly. 

Kind regards,

ED

8 months ago

The ALC always sets the minimum PGA gain whatever the input https://testmyspeed.onl/ signal.