AK4632 Datasheet, PDF (1/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
AK4632
16-Bit ∆Σ Mono CODEC with ALC & MIC/SPK/Video-AMP
GENERAL DESCRIPTION
The AK4632 is a 16-bit mono CODEC with Microphone-Amplifier, Speaker-Amplifier and Video-
Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Automatic Level Control) circuit.
Output circuits include a Speaker-Amplifier and Mono Line Output. Video circuits include a LPF and
Video-Amplifier. The AK4632 suits a moving picture of Digital Still Camera and etc. This
speaker-Amplifier supports a Piezo Speaker. The AK4632 is housed in a space-saving 32-pin QFN
package.
FEATURE
1. 16-Bit Delta-Sigma Mono CODEC
2. Recording Function
• 1ch Mono Input
• 1^st MIC Amplifier: 0dB, 20dB, 26dB or 32dB
• 2^nd Amplifier with ALC: -8dB ∼ +27.5dB, 0.5dB Step
• ADC Performance: S/(N+D): 80dB, DR, S/N: 85dB
3. Playback Function
• Digital Volume: +12dB ∼ -115dB, 0.5dB Step, Mute
• Mono Line Output Performance: S/(N+D): 85dB, S/N: 93dB
• Mono Speaker-Amp
- Speaker-Amp Performance: S/(N+D): 60dB, S/N: 90dB (150mW@ 8Ω)
- BTL Output
- ALC (Automatic Level Control) Circuit
- Output Power: 400mW @ 8Ω, SVDD=3.3V
3.0Vrms@SVDD=5V
• Beep Input
4. Power Management
5. Video Function
• A Composite Video Input
• Gain Control (-1.0dB ∼ +10.5dB, 0.5dB Step)
• Low Pass Filter
• A Video-Amp for Composite Video Signal(+6dB)
• DC Direct Output or Sag Compensation Output
6. Flexible PLL Mode:
• Frequencies:
11.2896MHz, 12MHz, 12.288MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (FCK pin)
16fs, 32fs or 64fs (BICK pin)
7. EXT Mode:
• Frequencies: 256fs, 512fs or 1024fs (MCKI pin)
8. Sampling Rate:
• PLL Slave Mode (FCK pin) : 7.35kHz ~ 26kHz
• 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
MS0396-E-00
-1-
2005/06