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Home > Mixed Signal IC's > Audio Converter > CODEC > AK4671
AK4671
Low Power 2ch ADC & 2ch DAC with B/T I/F and MIC/RCV/HP-Amp
| The AK4671 is a stereo CODEC with a built-in Microphone-Amplifier, Receiver-Amplifier and Headphone-Amplifier. The AK4671 features dual PCM I/F in addition to audio I/F that allows easy interfacing in mobile phone designs with Bluetooth I/F. The AK4671 is available in a 57pin BGA, utilizing less board space than competitive offerings. |
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- Applications: Mobile Phone, Smart Phone, PMP and Portable Navigation Device
- Recording Function (Stereo CODEC)
· 4 Stereo Input Selector × 2ch
· 4 Stereo Inputs (Single-ended) or 2 Stereo Input (Full-differential)
· MIC Amplifier: +30dB ~ -12dB, 3dB step
· Digital ALC (Automatic Level Control):
 +36dB ~ -54dB, 0.375dB Step, Mute
· Wind-noise Reduction Filter
· Stereo Separation Emphasis
· 5-band Programmable Notch Filter
· Audio Interface Format: 16bit MSB justified, I²S, DSP Mode
- Playback Function (Stereo CODEC)
· Digital Volume (+12dB ~ -115.0dB, 0.5dB Step, Mute)
· Digital ALC (Automatic Level Control):
+36dB ~ -54dB, 0.375dB Step, Mute
· Stereo Separation Emphasis
· 5-band EQ
· Stereo Line Output
· Mono Receiver-Amp
- BTL Output
- Output Power: 30mW@32Ω (AVDD=3.3V)
· Stereo Headphone-Amp
- Output Power: 30mW@16Ω (AVDD=3.3V)
· Analog Mixing: 4 Stereo Input
· Audio Interface Format:
- 16bit MSB justified, 16bit LSB justified, 16-24bit I²S, DSP Mode
- Dual PCM I/F for Baseband & Bluetooth Interface
· Sample Rate Converter (Up sample: up to x6: Down sample: down to x1/6)
· Sample Rate: 8kHz
· Digital Volume
· Audio Interface Format:
- 16bit Linear, 8bit A-law, 8bit m-law
- Short/Long Frame, I²S, MSB justified
- 10bit SAR ADC
· 3 Input Selector
- Power Management
- Master Clock:
(1) PLL Mode
· Frequencies: 11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz,
19.2MHz, 24MHz, 26MHz, 27MHz (MCKI pin)
1fs (LRCK pin)
32fs or 64fs (BICK pin)
(2) External Clock Mode
· Frequencies: 256fs, 384fs, 512fs, 768fs or 1024fs (MCKI pin)
- Output Master Clock Frequencies: 32fs/64fs/128fs/256fs
- Sampling Rate (Stereo CODEC):
· PLL Slave Mode (LRCK pin): 8kHz ~ 48kHz
· PLL Slave Mode (BICK pin): 8kHz ~ 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 Master/Slave Mode:
8kHz ~ 48kHz (256fs, 384fs), 8kHz ~ 26kHz (512fs, 768fs),
8kHz ~ 13kHz (1024fs)
- µP I/F: 4-wire Serial / I²C Bus (Ver 1.0, 400kHz Fast Mode)
- Master/Slave mode
- Ta = -30 ~ 85°C
- Power Supply:
· AVDD, PVDD, SAVDD: 2.2 ~ 3.6V (typ. 3.3V)
· DVDD, TVDD2, TVDD3: 1.6 ~ 3.6V (typ. 3.3V)
- Package : 57pin BGA (5mm × 5mm, 0.5mm pitch)
- Evaluation Board: AKD4671
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AK4671 BLOCK DIAGRAM
Data Sheet PDF
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Data Sheets
Rev. MS0666-E-00 2007/10
PDF : 1857KB / 164pages
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Evalution Board Manual
Rev. KM089000 2007/05
PDF : 1091KB / 51pages |
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