PCM1755DBQ集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

PCM1755DBQ属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的PCM1755DBQADC/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 resolution

• Analog performance (VCC = 5 V)

– Dynamic range: 106 dB

– SNR: 106 dB, typical

– THD+N: 0.002%, typical

– Full-scale output: 4 VPP, typical

• 4× or 8× oversampling digital filter

– Stop-band attenuation: –50 dB

– Pass-band ripple: ±0.04 dB

• Sampling frequency: 5 kHz to 200 kHz

• System clock: 128 fS, 192 fS, 256 fS, 384 fS, 512

fS, 768 fS, 1152 fS with auto detect

• Hardware control (PCM1754)

– I2S and 16-bit word, right-justified

– 44.1 kHz digital de-emphasis

– Soft mute

– Zero flag for L-, R-channel common output

• Power supply: 5-V single supply

• Small 16-lead SSOP package, lead-free

2 Applications

• A/V receivers

• HDTV receivers

• Car audio systems

• Applications requiring 24-bit audio

3 Description

The PCM1753, PCM1754, and PCM1755 (PCM175x)

devices are stereo digital-to-analog converters

(DACs) based on TI's enhanced delta-sigma

architecture. This enhanced architecture employs 4thorder

noise shaping and 8-level amplitude

quantization to achieve excellent dynamic

performance and improved clock jitter tolerance. The

PCM175x devices easily interface with audio DSP

and decoder chips because of the devices support of

industry-standard audio data formats with 16-bit and

24-bit data. The PCM175x devices can be controlled

in a hardware mode, or through a full set of userprogrammable

functions that are accessible through a

three-wire serial control port that supports registerwrite

functions.

The PCM1753 is pin compatible with the PCM1748,

PCM1742, and PCM1741, except for pin 5.