AK4634EN Datasheet, PDF (1/94 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK -AMP

[AK4634]
AK4634
16-Bit Mono CODEC with ALC & MIC/SPK -AMP
GENERAL DESCRIPTION
The AK4634 is a 16-bit mono CODEC with Microphone-Amplifier and Speaker-Amplifier. Input circuits
include a Microphone-Amplifier and an ALC (Automatic Level Control) circuit. Output circuits include a
Speaker-Amplifier and Mono Line Output. The AK4634 is suitable for a moving picture of Digital Still
Camera and etc. This speaker-Amplifier supports a Piezo Speaker. The AK4634 is housed in a
space-saving 32-pin QFN 5mm x 5mm package and 29-pin CSP 2.5mm x 3mm package.
FEATURE
1. 16-Bit Delta-Sigma Mono CODEC
2. Recording Function
 1ch Mono Input
 MIC Amplifier: (0dB/+3dB/+6dB/+10dB/ +17dB/+20dB/+23dB/+26dB/+29dB/+32dB)
 Digital ALC (Automatic Level Control)
(+36dB  -54dB, 0.375dB Step, Mute)
 ADC Performance (MIC-Amp=+20dB)
- S/(N+D): 84dB
- DR, S/N: 86dB
 Wind-noise Reduction Filter
 5 band notch Filter
3. Playback Function
 Digital ALC (Automatic Level Control)
(+36dB  -54dB, 0.375dB Step, Mute)
 Mono Line Output: S/(N+D): 85dB, S/N: 93dB
 Mono Class-D Speaker-Amp
- BTL Output
- Output Power: 400mW @ 8 (SVDD=3.3V)
- S/(N+D): 55dB (150mW@8)
 Beep Generator
4. Power Management
5. PLL Mode:
 Frequencies:
12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (FCK pin)
16fs, 32fs or 64fs (BICK pin)
6. EXT Mode:
 Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
7. Sampling Rate:
 PLL Slave Mode (FCK 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 / EXT Master Mode:
7.35kHz ~ 48kHz (256fs), 7.35kHz ~ 26kHz (512fs), 7.35kHz ~ 13kHz (1024fs)
8. Output Master Clock Frequency: 256fs
MS0686-E-03
-1-
2014/10