产地日本
功能ADC DAC DSP CODEC
品质HIFI音质
运用高端音响
品类音频芯片
AKM Corporate Profile
AKM Audio Market Voice
Premium Audio DAC
Smartphone HiFi DAC
BT Headphone
Wireless Speaker
New Solutions for AI Speaker
Specification summary of AK5704
Low Power/High SNR 4-ch ADC
- fs ~192kHz
- 9mW@2ch
- SNR 102dB
□ Very Low Power
Analog Voice Activity Detector
□ Digital MIC Interface (4-ch)
□ Digital Audio Interface
- TDM mode
- Cascade connection (max 16-ch)
□ Mic Sensitivity Adjustment
□ Delay Control
□ Programmable Filter
- HPF/LPF
- 5-band EQ (Notch)
- ALC
- DRC
□ PLL
□ Control Interface
- I2C-bus
□ Package: 40-pin WLCSP

Vendor AKM CSR Airoha
Part # AK4331 CSR8675 CSR8645 AB1526
Resolution 32-bit 16-bit 16-bit Unknown
Max. fs 192kHz 192kHz 96kHz 96kHz
THD+N -100dB -94dB -92dB -65dB
SNR 109dB 96dB 96dB 94dB
Max. Output Level 894mVRMS
(Single-end)
778mVRMS
(Differential)
778mVRMS
(Differential)
601mVRMS
(Differential)
Current Consumption
(DAC only)
2.4mA 2.6mA
(Estimated)
2.6mA
(Estimated) Unknown

Parameter AK4375A AK4331
THD+N @10mW, 32-Ohm -97dB -100dB
Power consumption 9.5mW 4.4mW (53% off)
Headphone impedance (min) 16-Ohm 7.2-Ohm (suitable for
small form factor)
Digital Mic I/F N/A Yes
Package 2.371x2.623 2.371x2.533 (3% off)

AK4621EF
AK4627VQ
AK4628AVQ
AK4633VN
AK4634EN
AK4637EN
AK4637VN
AK4678ECB
AK4695ECB
AK4940VN
AK4951AEN
AK4953AEN
AK4954AEN
AK4957EN
AK4958EG
Codec + DSP, easy to design;
Easy to tune by AKM GUI;
Good technical & price support;
Not only HW, but also SW;
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