AK4632VN 参数 Datasheet PDF下载

ASAHI KASEI

[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

16-Bit Delta-Sigma Mono CODEC

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

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

Power Management

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

Flexible PLL Mode:

•

Frequencies:

11.2896MHz, 12MHz, 12.288MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)

1fs (FCK pin)

16fs, 32fs or 64fs (BICK pin)

EXT Mode:

•

Frequencies: 256fs, 512fs or 1024fs (MCKI pin)

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

AK4632

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MS0396-E-00

-1-

2005/06