AKD7754 데이터 시트보기 (PDF) - Asahi Kasei Microdevices

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AKD7754

Audio DSP with Stereo CODEC + MIC/HP-AMP

Asahi Kasei Microdevices 

□ Stereo 24bit DAC

- Sampling rate: 8 ~ 48kHz

- Digital Volume (12dB~-115dB, 0.5dB Step, Mute)

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

□ Line Outputs

- Single-ended or Differential Outputs

- S/(N+D): 91dB ,DR, S/N: 96dB

- Stereo Analog Volume (+0 ~ -28dB, 2.0dB Step, Mute)

□ Stereo Headphone Amplifier with a Volume Control

- Rated Output Power: 27mW/ch @16Ω

- S/(N+D): 70dB , S/N: 89dB

- Stereo Analog Volume (+0 ~ -50dB,1.0/2.0/4.0dB Step, Mute)

- Click Noise Free at Power ON/OFF

□ SRC Block

- 2ch x 1 system

- Input Sampling Frequency: 8kHz ~ 96kHz

- Output Sampling Frequency: 8kHz ~ 48kHz

□ Analog Bypass Mode

- Bypass Amplifier (0dB~-21dB, 3dB step)

□ Output Mixer

□ μP Interface: I2C Bus (400KHz Fast-Mode)

□ Power Supply

Analog AVDD: 3.0V ~ 3.6V (typ.3.3V)

Digital1 DVDD: 3.0V ~ 3.6V (typ.3.3V)

Digital2 DVDD18: 1.7V ~ 1.9V (typ.1.8V)

HP-Amp HVDD: 3.0V ~ 3.6V (typ.3.3V)

□ Operating temperature range: -20°C ~ 85°C

□ Package: 48pin QFN (0.5mm pitch)

[AK7754]

MS1138-E-01-PB

-2-

2012/03

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