PCM1802DB集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

PCM1802DB属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的PCM1802DBADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

1 Features

1• 24-Bit Delta-Sigma Stereo A/D Converter

• Single-Ended Voltage Input: 3 VP–P

• Antialiasing Filter Included

• Oversampling Decimation Filter

– Oversampling Frequency: ×64, ×128

– Pass-Band Ripple: ±0.05 dB

– Stop-Band Attenuation: –65 dB

– On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)

• High Performance

– THD+N: 96 dB (Typical)

– SNR: 105 dB (Typical)

– Dynamic Range: 105 dB (Typical)

• PCM Audio Interface

– Master and Slave Mode Selectable

– Data Formats: 24-Bit Left-Justified; 24-Bit I2S;

20-bit or 24-Bit Right-Justified

• Sampling Rate: 16 kHz to 96 kHz

• System Clock: 256 fS, 384 fS, 512 fS, 768 fS

• Dual Power Supplies: 5 V (Analog), 3.3 V (Digital)

• Package: 20-Pin SSOP

2 Applications

• AV Amplifier Receivers

• MD Players

• CD Recorders

• Multitrack Receivers

• Electric Musical Instruments

3 Description

The PCM1802 is a high-performance, low-cost,

single-chip stereo analog-to-digital converter with

single-ended analog voltage input. The PCM1802

uses a delta-sigma modulator with 64-times or

128‑times oversampling, and includes a digital

decimation filter and high-pass filter (HPF), which

removes the DC component of the input signal. For

various applications, the PCM1802 supports master

and slave modes and four data formats in serial

interface. The PCM1802 is suitable for a wide variety

of cost-sensitive consumer applications where good

performance, 5-V analog supply, and 3.3-V digital

supply operation is required. The PCM1802 is

fabricated using a highly advanced CMOS process

and is available in the DB 20-pin SSOP package.