AK4377 HiFi Headphone DAC
■ Block Diagram ■ Key Features
■ Development Schedule (CY)
Now
□ Upgrading DAC/Headphone Amplifier Performance
- THD+N: -109 dB @ 16ohm, Po = 25mW
- Dynamic Range: 118 dB
- S/N: 128 dB @ Po = 25mW
- Power Consumption: 60mW
□ Low Power Mode for Saving Battery during Phone Call
- Power Consumption: 20mW
□ Digital Audio interface
- Master/Slave mode
- Sampling Frequency: 8 k to 768 kHz
- I/F Format: 32/24/16-bit I2S/MSB justified
- DSD Support by DoP
□ Headphone Amplifier Output pins Comply
with IEC61000-4-2 Level 4 ESD Protection
□ Headphone Amplifier Output pins EOS Immunity:
DC +9V (via External Resistance 15ohm)
□ Small Package
- 3.082 x 2.893 mm2 36-pin WLCSP
- Backward compatible with AK4376/A
AK4528VM
AK4556VT
AK4558EN
AK4613VQ
AK4616VQ
AK4619VN
AK4962ECB
AK7604VQ
AK7707VQ
DSP+CODEC AK7755EN
■ Block Diagram ■ Key Features
■ Applications and Target Customers
■ Benefits
■ Product Status (CY)
ES Available
MP Available
Wireless Speaker / Docking Station
Hands Free System / Door phone
□ Programmable DSP 2560step @48kHz processing speed
□ 3ch ADC S/N : 102dB
□ 2ch DAC S/N : 106dB
□ Differential/Single-ended Inputs MIC-Amp
□ Digital MIC Input
□ Single-ended Lineout
□ Analog DRC (Dynamic Range Control)
□ Internal PLL, LDO
□ EEPROM Boot Function (4MAT Selectable)
□ SPI(7MHz), I²C-bus(400kHz Fast-Mode)
□ 36pin QFN (6mm x 6mm)
□ Configurable DSP for Audio/HF Systems
□ Stand-alone Operation from EEPROM
□ AKM’s Unique Full Duplex Hands-free Algorithm
(Wideband Speech)
□ Power management mode to prolong the battery life
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)
Codec + DSP, easy to design;
Easy to tune by AKM GUI;
Good technical & price support;
Not only HW, but also SW;