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AK4569 Datasheet, PDF (1/45 Pages) Asahi Kasei Microsystems – 20-Bit Stereo CODEC with IPGA & HP-AMP | |||
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ASAHI KASEI
[AK4569]
AK4569
20-Bit Stereo CODEC with IPGA & HP-AMP
GENERAL DESCRIPTION
The AK4569 is a 20bit CODEC with built-in Input PGA and Headphone Amplifier. The AK4569 includes a
microphone/line input selector and an ALC circuit for input, and a Mono line output buffer, analog volume
controls and stereo headphone amplifier for output. The AK4569 also features an analog mixing circuit
that allows easy interfacing in mobile phone and portable communication designs. The integrated
headphone amplifier features âpop-freeâ power-on/off, a mute control and delivers 8.7mW of power into
16⦠load via 6.8⦠series resistor. The AK4569 is housed in a 28pin QFN package, making it suitable for
portable applications.
FEATURE
 2ch 20bit ADC
- S/N: 89dB
- Single-ended input
- 2 stereo inputs selector
- Analog input PGA: +32dB â¼ â19dB, Mute, 0.5dB step (MIC input)
+20dB â¼ â31dB, Mute, 0.5dB step (LINE input)
- Digital HPF for DC-offset cancellation
- I/F format: 20bit MSB justified, I2S
 2ch 20bit DAC
- I/F Format: I2S, 20bit MSB justified, 20bit/16bit LSB justified
- Digital ATT: 0dB â¼ â127dB, Mute, 0.5dB step (soft transition)
- Soft mute
- Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz
- Bass Boost Function
 Sampling Rate: 8kHz ⼠48kHz
 System clock: 256fs/384fs/512fs
- Input level: CMOS or 1Vpp Analog Input
 Analog Mixing Circuit
 Mono Lineout
- Analog volume: 0dB â¼ â30dB, Mute, 2dB step
 Headphone Amplifier
- Output Power: 8.7mW x 2ch @16⦠load & 6.8⦠series resistor
- S/N: 90dB
 µP Interface: 3-wire
 Power management
 Power supply: 2.7V ⼠3.6V
 Power dissipation: 15mA
 Ta: â40 â¼ 85°C
 Small Package: 28pin QFN (5.2mm x 5.2mm, 0.5mm pitch)
MS0292-E-01
-1-
2005/07
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