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- Applications : Mobile Phone, Smart Phone, PMP and Portable Navigation Device
- Recording Function (Stereo CODEC)
- 4 Stereo Input Selector x 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@32 (AVDD=3.3V)
- Stereo Cap-less Headphone Amplifier
- Mono / Stereo Mode
- Output Power: 64mW x 2ch @ 16 , SVDDA=3.3V, THD+N = – 40dB
- THD+N: -58dB @ 16 , Po= 30mW, SVDDA=3.3V
- Output Noise Level: 24 Vrms
- Outputs Volume: +12dB to –50dB, 2dB Step
- Pop Noise Free at Power-ON/OFF and Mute
- Class-D Speaker Amplifier
- BTL output
- Output Power: 1.6W @ 8 , S VDDA=5.0V
 0.8W @ 8 , S VDDA=3.6V
- THD+N: –65dB @8 , Po=0.25W, SVDDA=3.6V
- Output Noise Level: 71 m Vrms
- ALC (Automatic Level Control) Circuit
- Pop Noise Free at Power-ON/OFF and Mute
- External filter-less
- Short Protection circuit
- Thermal Shutdown / Short protection circuit
- 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: 8 kHz
- Digital Volume
- Audio Interface Format:
- 16bit Linear, 8bit A-law, 8bit -law
- Short/Long Frame, I2S, MSB justified
- 10bit SAR ADC
- 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
- Sampling Rate: 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): 8 kHz ~ 48k Hz
- PLL Slave Mode (BICK pin): 8 kHz ~ 48k Hz
- 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:
8 kHz ~ 48kHz (256fs, 384fs), 8 kHz ~ 26kHz (512fs, 768fs),
8 kHz ~ 13kHz (1024fs)
- P I/F: I2C Bus (Ver 1.0, 400kHz High Speed Mode )
- Master/Slave mode
- Ta = –30 ~ 85 ° C
- Power Supply:
- Analog 1: 2.2 ~ 3.6V
- Analog2 : 2.6 ~ 3.6V
- Digital I/F: 1.6 ~ 3.6V
- Speaker Amp: 3.0 ~ 5.5V
- Package: 83pin BGA (5.5mm x 5.5mm, 0.5mm pitch)
- Evaluation Board: AKD4675
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