AK4649ECB

更新时间： 2024-01-03 15:59:05

品牌	Logo	应用领域
AKM		解码器编解码器电信集成电路电信电路 PC
页数	文件大小	规格书
96页	946K
描述
24bit Stereo CODEC with MIC/SPK-AMP

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技术参数
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AK4649ECB 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.7	电信集成电路类型：	PCM CODEC
Base Number Matches：	1

AK4649ECB 数据手册

[AK4649]

AK4649

24bit Stereo CODEC with MIC/SPK-AMP

GENERAL DESCRIPTION

The AK4649 features a stereo CODEC with a built-in Microphone-Amplifier and Speaker-Amplifier. Input

circuits include a Microphone-Amplifier and an ALC (Automatic Level Control) circuit, and Output circuits

include a Speaker-Amplifier. These circuits are suitable for portable application with recording/playback

function. The AK4649 is available in a 29pin CSP (3x3.3mm 0.5mm pitch), utilizing less board space than

competitive offerings.

FEATURES

1. Recording Function

• Stereo Single-ended input with two Selector

• MIC Amplifier

(+29dB/+26dB/+23dB/+20dB/+16dB/+12dB/+9dB/+6dB/+3dB/0dB)

• Digital ALC (Automatic Level Control)

- Setting Range: +36dB ∼ −54dB, 0.375dB Step

- Noise Suppression

• ADC Performance: S/(N+D): 80dB, DR, S/N: 89dB (MIC-Amp=+20dB, AVDD=3.3V)

S/(N+D): 80dB, DR, S/N: 100dB (MIC-Amp=0dB, AVDD=3.3V)

• Wind-noise Reduction Filter

• 5 Band Notch Filter

• Stereo Separation Emphasis

• Digital MIC Interface

2. Playback Function

• Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)

• Digital ALC (Automatic Level Control)

- Setting Range: +36dB ∼ −54dB, 0.375dB Step

- Noise Suppression

• Digital Volume Control:

- 0dB ∼ −18dB, 6dB Step & 256 Linear Step (+0dB ∼ - 48.13dB & Mute)

• Stereo Separation Emphasis

• Stereo Line Output

- S/(N+D): 87dB, S/N: 97dB

• Mono Speaker-Amp

- SPK-AMP Performance: S/(N+D): 60dB@150mW, S/N: 98dB

- BTL Output

- Output Power: 400mW@8Ω (SVDD=3.3V)

• Analog Mixing: Mono Input

3. Power Management

4. Master Clock:

(1) PLL Mode

• Frequencies: 11.2896MHz, 12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)

1fs (LRCK pin)

32fs or 64fs (BICK pin)

(2) External Clock Mode

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

5. Output Master Clock Frequencies: 32fs/64fs/128fs/256fs

• PLL Slave Mode (LRCK 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

MS1023-E-01

2010/08

- 1 -

12 3 4 5 6 7...96

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