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Home > Mixed Signal IC's > Audio Converter > CODEC > AK4647
AK4647
2ch ADC & 2ch DAC with PLL and MIC/HP-Amp
| The AK4647 features a stereo CODEC with a built-in Microphone-Amplifier and Headphone-Amplifier. Built-in PLL circuit supports an easy interface with variable systems. The AK4647 is available in a 48pin LQFP, which is easy to mount on PC board and suitable for automotive application. |
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- Application: Automotive
- Recording Function
· Stereo Mic Input (Full-differential or Single-ended)
· Stereo Line Input
· MIC Amplifier (+32dB/+26dB/+20dB or 0dB)
· Digital ALC (Automatic Level Control)
 (+36dB ~ -54dB, 0.375dB Step, Mute)
· ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)
S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
· Wind-noise Reduction Filter
· Stereo Separation Emphasis
· Programmable EQ
- Playback Function
· Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)
· Bass Boost
· Soft Mute
· Digital Volume (+12dB ~ -115.0dB, 0.5dB Step, Mute)
· Digital ALC (Automatic Level Control)
(+36dB ~ -54dB, 0.375dB Step, Mute)
· Stereo Separation Emphasis
· Stereo Line Output
- Performance: S/(N+D): 88dB, S/N: 92dB
· Stereo Headphone-Amp
- S/(N+D): 70dB, S/N: 90dB
- Output Power: 62mW@16Ω (HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
· Analog Mixing: Mono Input
- Power Management
- Master Clock:
(1) PLL Mode
· Frequencies:
11.2896MHz, 12MHz, 12.288MHz, 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)
- Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
- Sampling Rate:
· 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
· PLL Master Mode:
8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
· EXT Slave Mode:
7.35kHz ~ 48kHz (256fs), 7.35kHz ~ 26kHz (512fs), 7.35kHz ~ 13kHz (1024fs)
- μP I/F: 3-wire Serial, I2C Bus (Ver 1.0, 400kHz High Speed Mode)
- Master/Slave mode
- Audio Interface Format: MSB First, 2's complement
· ADC : 16bit MSB justified, I2S
· DAC : 16bit MSB justified, 16bit LSB justified, 16-24bit I2S
- Ta = -40 ~ 85°C
- Power Supply:
· AVDD, DVDD: 2.6 ~ 3.6V (typ. 3.3V)
· HVDD: 2.6 ~ 5.25V (typ. 3.3V/5.0V)
- Package: 48pin LQFP
- Evaluation board: AKD4647
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AK4647 BLOCK DIAGRAM
Data Sheet PDF
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Data Sheets
Rev. MS0566-E-00 2006/11
PDF : 543KB / 72pages
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