AK4636EN 参数 Datasheet PDF下载

[AK4636]

AK4636

16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP

GENERAL DESCRIPTION

The AK4636 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 AK4636 suits a video recording/playback system of Digital Still Cameras. The

AK4636 is housed in a space-saving 29-pin CSP 2.5mm x 3.0mm package (AK4636ECB) or a 32pin QFN

4.0mm x 4.0mm package (AK4636EN).

FEATURE

16-Bit Delta-Sigma Mono CODEC

Recording Function

•

1ch Mono Input

•

MIC Amplifier: (0dB/+3dB/+6dB/+10dB/ +17dB/+20dB/+23dB/+26dB/+29dB/+32dB)

•

Digital ALC (Automatic Level Control)

- Output Noise Suppression

- Setting Rate (+36dB

∼

-54dB, 0.375dB Step, Mute)

•

ADC Performance (MIC-Amp=+20dB)

- S/(N+D): 83dB

- DR, S/N: 85dB

•

Wind-noise Reduction Filter

•

5 band notch Filter

•

Digital Microphone Interface

Playback Function

•

Digital ALC (Automatic Level Control)

- Output Noise Suppression

- Setting Rate (+36dB

∼

-54dB, 0.375dB Step, Mute)

•

Mono Line Output:

- S/(N+D): 84dB

- S/N: 90dB

•

Mono Speaker-Amp

- S/(N+D): 60dB (150mW@8Ω)

- BTL Output

- Output Power: 400mW @ 8Ω (SVDD=3.3V)

•

Beep Generator

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

•

DC Direct Output

Power Management

PLL Mode:

•

Frequencies:

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

1fs (FCK pin)

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

EXT Mode:

2010/08

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MS1012-E-01