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Home > Mixed Signal IC's > Audio Converter > CODEC > AK4673
AK4673
Low Power 2ch ADC & 2ch DAC with TSC and MIC/HP-Amp
| The AK4673 is a stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Touch Screen Controller (TSC) which includes the SAR type ADC. The AK4673 features analog mixing circuits, PLL and a 4-wire resistive touch screen I/F that allows easy interfacing in mobile phone and portable A/V player designs. The AK4673 is available in a 57pin BGA package, utilizing less board space than competitive offerings. |
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- Applications: Mobile phone, Smart phone, PND and PMP
- Recording Function
- 4 Stereo Input Selectors
- 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=50/15 μs, 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
- Programmable EQ
- Stereo Line Output
- Performance: S/(N+D): 88dB, S/N: 92dB
- Stereo Headphone-Amp
- S/(N+D): 70dB@7.5mW, S/N: 90dB
- Output Power: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
- Analog Mixing: 4 Stereo Input
- Power Management
- Master Clock:
(1) PLL Mode
- Frequencies:
- MCKI pin: 11.2896MHz, 12MHz, 12.288MHz, 13MHz, 13.5MHz,
19.2MHz, 24MHz, 26MHz, 27MHz
- LRCK pin: 1fs
- BICK pin: 32fs or 64fs
(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 Master/Slave Mode: 7.35kHz ~ 48kHz (256fs), 7.35kHz ~ 26kHz (512fs), 7.35kHz ~ 13kHz (1024fs)
- Master/Slave mode
- Audio Interface Format: MSB First, 2's complement
- ADC: 16bit MSB justified, I2S, DSP Mode
- DAC: 16bit MSB justified, 16bit LSB justified, 16-24bit I2S, DSP Mode
- Touch Screen Control Function
- 12-bit SAR type A/D Converter with S/H circuit
- 4-wire Resistive Touch Screen Interface
- Pen Pressure Measurement
- Auto Power Down
- Continuous Read Operation
- μP I/F: I2S Bus (Ver 1.0, 400kHz Fast-Mode)
- Ta = -30 ~ 85 ° C
- Power Supply:
- AVDD (Analog): 2.6 ~ 3.6V
- DVDD (Digital): 2.6 ~ 3.6V
- HVDD (Headphone): 2.6 ~ 5.25V
- TVDD1 (Digital I/O): 2.5 ~ 3.6V
- TVDD2 (Digital I/O): 1.6 ~ 3.6V · TSVDD (Touch Screen Controller): 2.5 ~ 3.6V
- Package: 57pin BGA (5mm x 5mm, 0.5mm pitch)
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AK4673 BLOCK DIAGRAM
Data Sheet PDF
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Data Sheet
Rev. MS0670-E-01 2007/10
PDF : 1264KB / 107pages |
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Evalution Board Manual
Rev. KM086000 2007/05
PDF : 1562KB / 48pages |
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