|
|
Home > Mixed Signal IC's > Audio Converter > CODEC > AK4644
AK4644
Low Power 2ch ADC & 2ch DAC with ALC/Eq and MIC/HP/RCV-Amp
 |
- Recording Function
· 3 Stereo Inputs Selector
· Stereo Mic Input (Full-differential or Single-ended)
· Stereo Line Input
· MIC Amplifier (+32dB/+26dB/+20dB or 0dB)
· Digital ALC (Automatic Level Control)
 (+36dB ~ -54dB, 0.375dB Step, Mute)
· ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)
S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
· Wind-noise Reduction Filter
· Stereo Separation Emphasis
- Playback Function
· Digital De-emphasis Filter (tc=50/15ms, fs=32kHz, 44.1kHz, 48kHz)
· Digital Volume (+12dB ~ -115.0dB, 0.5dB Step, Mute)
· Digital ALC (Automatic Level Control)
(+36dB ~ -54dB, 0.375dB Step, Mute)
· Stereo Separation Emphasis
· Programmble EQ
· Stereo Line Output
- Performance: S/(N+D): 88dB, S/N: 92dB
· Mono Receiver-Amp
- BTL Output
- Output Power: 30mW@32WΩ (AVDD=3.3V)
· Stereo Headphone-Amp
- S/(N+D): 70dB@7.5mW, S/N: 90dB
- Output Power: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
· Analog Mixing: 3 Stereo Inputs
- Power Management
- Master Clock:
(1) PLL Mode
· Frequencies:
11.2896MHz, 12MHz, 12.288MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (LRCK pin)
32fs or 64fs (BICK pin)
(2) External Clock Mode
· Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
- Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
- Sampling Rate:
· PLL Slave Mode (LRCK pin): 7.35kHz ~ 48kHz
· PLL Slave Mode (BICK pin): 7.35kHz ~ 48kHz
· PLL Slave Mode (MCKI pin):
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
· PLL Master Mode:
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
· EXT Slave Mode:
7.35kHz ~ 48kHz (256fs), 7.35kHz ~ 26kHz (512fs), 7.35kHz ~ 13kHz (1024fs)
- μP I/F: 3-wire Serial, I2C Bus (Ver 1.0, 400kHz High Speed Mode)
- Master/Slave mode
- Audio Interface Format: MSB First, 2's compliment
· ADC: 16bit MSB justified, I2S, DSP Mode
· DAC: 16bit MSB justified, 16bit LSB justified, 16-24bit I2S, DSP Mode
- Ta = -30 ~ 85°C
- Power Supply:
· AVDD, DVDD: 2.6 ~ 3.6V (typ. 3.3V)
· HVDD: 2.6 ~ 5.25V (typ. 3.3V/5.0V)
- Package: 32pin QFN (5mm x 5mm, 0.5mm pitch)
- Pin/Register Compatible with AK4642EN
- Evaluation Board: AKD4644
|
AK4644 BLOCK DIAGRAM
Data Sheet PDF
|
Data Sheets
Rev. MS0477-E-01 2006/10
PDF : 801KB / 96pages
|
|
Evalution Board Manual
Rev. KM082800 2006/03
PDF : 1090KB / 40pages |
|
|
