PCM3003中文资料具有线性输出的低功耗立体声编解码器（H/W 控制）数据手册TI规格书

描述 Description

The PCM3002 and PCM3003 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.

特性 Features

• Monolithic 20-Bit ADC and DAC
• Software Control: PCM3002
• Stereo ADC:
• Antialiasing Filter
• High Performance
• SNR: 90 dB
• Stereo DAC:
• Analog Low-Pass Filter
• High Performance
• SNR: 94 dB
• Special Features (PCM3002, PCM3003)
• Power Down: ADC/DAC Independent
• Special Features (PCM3002)
• Soft Mute
• Four Alternative Audio Data Formats
• Sampling Rate: 4 kHz to 48 kHz
• Small Package: SSOP-24
• DVC Applications
• Portable/Mobile Audio Applications

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