PCM3003
16 位/20 位单端模拟输入/输出 SoundPlusTM 立体声音频编解码器
The PCM3002 and are low-cost, single-chip stereo audio codecs analog-to-digital and digital-to-analog converters with single-ended analog voltage input and output.
The ADCs and DACs employ delta-sigma modulation with 64-times oversampling. The ADCs include a digital decimation filter, and the DACs include an 8-times oversampling digital interpolation filter. The DACs also include digital attenuation, de-emphasis, infinite zero detection, and soft mute to form a complete subsystem. The PCM3002 and PCM3003 operate with left-justified ADC and right-justified DAC formats, while the PCM3002 also supports other formats, including the I2S data format. The PCM3002 and PCM3003 provide a power-down mode that operates on the ADCs and DACs independently.
The PCM3002 and PCM3003 are fabricated using a highly advanced CMOS process, and are available in a 24-pin SSOP package. The PCM3002 and PCM3003 are suitable for a wide variety of cost-sensitive consumer applications where good performance is required.
The PCM3002 programmable functions are controlled by software. The PCM3003 functions, which are controlled by hardware, include de-emphasis, power-down, and audio data format selections.
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- Monolithic 20-Bit ADC and DAC
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- 16/20-Bit Input/Output Data
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- Software Control: PCM3002
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- Hardware Control: PCM3003
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- Stereo ADC:
Single-Ended Voltage Input
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- Antialiasing Filter
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- 64× Oversampling
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- High Performance
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- THD+N: &3150;86 dB
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- SNR: 90 dB
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- Dynamic Range: 90 dB
* Stereo DAC:
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- Single-Ended Voltage Output
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- Analog Low-Pass Filter
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- 64× Oversampling
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- High Performance
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- THD+N: 86 dB
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- SNR: 94 dB
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- Dynamic Range: 94 dB
* Special Features PCM3002, PCM3003
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- Digital De-Emphasis: 32 kHz, 44.1 kHz, 48 kHz
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- Power Down: ADC/DAC Independent
* Special Features PCM3002
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- Digital Attenuation 256 Steps
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- Soft Mute
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- Digital Loopback
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- Four Alternative Audio Data Formats
* Sampling Rate: 4 kHz to 48 kHz
* Single 3-V Power Supply
* Small Package: SSOP-24
* APPLICAONS
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- DVC Applications
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- DSC Applications
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- Portable/Mobile Audio Applications
System Two, Audio Precision are trademarks of Audio Precision, Inc.
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