PCM1808集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

PCM1808属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的PCM1808ADC/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。

1FEATURES

23• Qualified for Automotive Applications

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

• Single-Ended Voltage Input: 3 Vp-p

• High Performance:

– THD + N: –93 dB (Typical)

– SNR: 99 dB (Typical)

– Dynamic Range: 99 dB (Typical)

• Oversampling Decimation Filter:

– Oversampling Frequency: ×64

– Pass-Band Ripple: ±0.05 dB

– Stop-Band Attenuation: –65 dB

– On-Chip High-Pass Filter: 0.91 Hz (48 kHz)

• Flexible PCM Audio Interface

– Master/Slave Mode Selectable

– Data Formats: 24-Bit I2S, 24-Bit Left-

Justified

• Power Down and Reset by Halting System

Clock

• Analog Antialias LPF Included

• Sampling Rate: 8 kHz–96 kHz

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

• Dual Power Supplies:

– 5-V for Analog

– 3.3-V for Digital

• Package: 14-Pin TSSOP

DESCRIPTION

The PCM1808-Q1 is high-performance, low-cost,

single-chip, stereo analog-to-digital converter with

single-ended analog voltage input. The PCM1808-Q1

uses a delta-sigma modulator with 64-times

oversampling and includes a digital decimation filter

and high-pass filter that removes the dc component

of the input signal. For various applications, the

PCM1808-Q1 supports master and slave mode and

two data formats in serial audio interface.

The PCM1808-Q1 supports the power-down and

reset function by means of halting the system clock.

The PCM1808-Q1 is suitable for wide variety of costsensitive

consumer applications where good

performance and operation with a 5-V analog supply

and 3.3-V digital supply is required. The PCM1808-

Q1 is fabricated using a highly advanced CMOS

process and is available in a small, 14-pin TSSOP

package.