8W Mono Class D Amplifier Evaluation Kit
The DA7202 is a powerful, highly efficient, low EMI Class D speaker driver that can drive 8W into 4Ω loads directly from a 2S lithium-ion battery to power a variety of...
8W Mono Class D Amplifier for 2S Battery-Operated Portable Devices
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Overview
Description
The DA7202 is a powerful, highly efficient, low EMI Class D speaker driver that can drive 8W into 4Ω loads directly from a 2S Lithium-ion battery pack to power a variety of two-cell portable applications such as Ultrabooks and tablets.
It uses a fully-differential switched-mode amplifier architecture with a fixed +18dB gain, with differential analog inputs. It also has a PWM modulator and an H-bridged switched power output stage that delivers 5W (dynamic) into an 8Ω load, making a speaker sound louder on portable devices.
Benefits
- Low component count
- Small PCB area due to 9 bump WLCSP 0.5mm pitch package
- Good PSRR and THD+N
- Differential audio inputs
- Low EMI
- Short circuit and thermal overload protection with auto-recovery
Features
- Supports 4Ω and 8Ω loads
- Input supply range: 4.5V to 9.0V
- Prms: 9.0W into 4Ω load at 8.2V, 1% THD+N
- Prms: 10.2W into 4Ω load at 8.2V, 10% THD+N
- Prms: 3.8W into 8Ω load at 8.2V, 1% THD+N
- Prms: 5.0W into 8Ω load at 8.2V, 10% THD+N
- Efficiency: 85% at Pout = 7.0W at 8.2V, 4Ω
- Efficiency: 90% at Pout = 3.5W at 8.2V, 8Ω
- Ultra-low standby current: 7µA
- SNR (A-weighted) 104dB
- THD+N: 90dB
- PSRR: 78dB
- Fixed +18db gain
- Package: 9-WLCSP 0.5mm
Comparison
Applications
Applications
- Ultrabooks
- Tablets
- Personal navigation devices
- Speaker accessories
- Handheld gaming
- Mobile computing
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 779 KB | |
| Application Note | PDF 502 KB | |
| Manual - Development Tools | PDF 1.08 MB | |
| Schematic | PDF 30 KB | |
| Product Brief | PDF 479 KB | |
| Other | ZIP 693 KB | |
| Product Brief | PDF 1.25 MB | |
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Design & Development
Boards & Kits
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| 9-WLCSP | Tape & Reel | 1 |
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