
Asahi Kasei Microdevices
FEATURES
1. Resolution : 16bits
2. Recording Function
· 1ch Mono Input
· 1st MIC Amplifier : +20dB or 0dB
· 2nd Amplifier with ALC : +27.5dB ~ -8dB, 0.5dB Step
· ADC Performance : S/(N+D) : 79dB, DR, S/N : 83dB
3. Playback Function
· Digital De-emphasis Filter (tc=50/15ms, fs=32kHz, 44.1kHz, 48kHz)
· Digital Volume (0dB ~ -127dB, 0.5dB Step, Mute)
· Headphone-Amp
- S/(N+D) : 70dB, S/N : 90dB
- Output Power : 15mW@16W (HVDD=3.3V)
· Mono Speaker-Amp with ALC
- S/(N+D) : 64dB@250mW, 20dB@300mW, S/N : 90dB
- BTL Output
- Output Power : 300mW@8W (THD=10%, HVDD=3.3V)
· Mono and Stereo Beep Inputs
· Mono Line Output
4. Power Management
5. Master Clock
(1) PLL Mode
· Frequencies : 11.2896MHz, 12MHz and 12.288MHz
· Input Level : CMOS
(2) External Clock Mode
· Frequencies : 2.048MHz ~ 12.288MHz
6. Output Master Clock Frequencies : 32fs/64fs/128fs/256fs
7. Sampling Rate
(1) PLL Mode
· 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
(2) External Clock Mode
· 8kHz ~ 48kHz
8. Control mode: 4-wire Serial / I2C Bus
9. Master/Slave mode
10. Audio Interface Format : MSB First, 2’s compliment
· ADC : I2S, 16bit MSB justified
· DAC : I2S, 16bit MSB justified, 16bit LSB justified
11. Ta = -10 ~ 70°C
12. Power Supply: 2.4V ~ 3.6V (typ. 3.3V)
13. Power Supply Current
· AVDD+DVDD : 16mA
· PVDD : 1.2mA
· HVDD (HP-AMP=ON, SPK-AMP=OFF) : 6.5mA
· HVDD (HP-AMP=OFF, SPK-AMP=ON) : 9mA
14. Package : 52pin QFN