Datasheet > AK4538

AK4538

更新时间： 2024-11-04 04:05:27

品牌	Logo	应用领域
AKM		解码器编解码器
页数	文件大小	规格书
70页	461K
描述
16Bit DS CODEC with MIC/HP/SPK-AMP

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数据手册

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AK4538 数据手册

ASAHI KASEI

[AK4538]

AK4538

16Bit DS CODEC with MIC/HP/SPK-AMP

GENERAL DESCRIPTION

The AK4538 targeted at PDA and other low-power, small size applications. It features a 16-bit stereo

CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Speaker-Amplifier. Input circuits

include a Microphone-Amplifier and an ALC (Auto Level Control) circuit. The AK4538 is available in a

52-QFN, utilizing less board space than competitive offerings.

FEATURES

1. Resolution : 16bits

2. Recording Function

· 1ch Mono Input

· 1^stMIC Amplifier : +20dB or 0dB

· 2^ndAmplifier with ALC : +27.5dB

~ -8dB, 0.5dB Step

· ADC Performance : S/(N+D) : 79dB, DR, S/N : 83dB

3. Playback Function

· Digital De-emphasis Filter (tc=50/15

s, fs=32kHz, 44.1kHz, 48kHz)

· Digital Volume (0dB

· Stereo Line Output

-127dB, 0.5dB Step, Mute)

- Performance : S/(N+D) : 88dB, S/N : 92dB

· Headphone-Amp

- S/(N+D) : 70dB, S/N : 90dB

- Output Power : 15mW@16

· Mono Speaker-Amp with ALC

- S/(N+D) : 64dB, S/N : 90dB

- BTL Output

(HVDD=3.3V)

- Output Power : 300mW@8

· Mono and Stereo Beep Inputs

· AUX Input

(HVDD=3.3V)

· Mono Output

4. Power Management

5. Master Clock

(1) PLL Mode

· Frequencies : 11.2896MHz, 12MHz and 12.288MHz

· Input Level : CMOS

(2) External Clock Mode

· Frequencies : 1.792MHz

~ 12.288MHz

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

7. Sampling Rate

(1) PLL Mode

· 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz

(2) External Clock Mode

· 7kHz

48kHz

8. Control mode: 4-wire Serial / I²C Bus

9. Master/Slave mode

MS0198-E-01

2003/5

- 1 -

12 3 4 5 6 7...70

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