SoundPlusTM 立体声音频编解码器 18 位串行接口
The PCM3000/3001 is a low-cost, single-chip stereo audio codec analog-to-digital and digital-to-analog converter with single-ended analog voltage input and output. Both ADCs and DACs employ delta-sigma modu- lation with 64-times oversampling. The ADCs include a digital decimation filter and the DACs include an 8-times oversampling digital interpolation filter. TheDACs also include digital attenuation, de-emphasis, infinite zero detection and soft mute to form a complete subsystem. The PCM3000/3001 operates with left-justified, right-justified, I2S or DSP data formats.
The PCM3000 can be programmed with a three-wire serial interface for special features and data formats. The can be pin-programmed for data formats.
The PCM3000 and PCM3001 are fabricated using a highly advanced CMOS process and are available in a small 28-pin SSOP package. The PCM3000/3001 are suitable for a wide variety of cost-sensitive consumer applications where good performance is required.
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- Monolithic 18-Bit ADC and DAC
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- 16- or 18-Bit Input/Output Data
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- Accepts Seven Alternate Formats
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- Stereo ADC:
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- Single-Ended Voltage Input
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- 64× Oversampling Digital Filter
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- Pass-Band Ripple: ±0.05 dB
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- Stop-Band Attenuation: 65 dB
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- High Performance:
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- THD+N: 88 dB
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- SNR: 94 dB
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- Dynamic Range: 94 dB
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- Digital High-Pass Filter
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- Stereo DAC
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- Single-Ended Voltage Outut
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- Analog Low-Pass Filter
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- 8× Oversampling Digital Filter
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- Pass-Band Ripple: ±0.17 dB
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- Stop-Band Attenuation: 35 dB
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- High Performance:
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- THD+N: 90 dB
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- SNR: 98 dB
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- Dynamic Range: 97 dB
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- Special Features PCM3000
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- Digital De-Emphasis
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- Digital Attenuation 256 Steps
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- Soft Mute
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- Digital Loopback
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- Sample Rate: 4 kHz to 48 kHz
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- System Clock: 256 fs, 384 fs, 512 fs
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- Single 5-V Power Supply
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- Small Package: SSOP-28
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- APPLICA ONS
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- Sampling Keyboards
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- Digital Mixers
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- Mini-Disk Recorders
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- Hard-Disk Recorders
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- Karaoke Systems
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- DSP-Based Car Stereo
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- DAT Recorders
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- Video Conferencing
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