PCM5141PW集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

PCM5141PW属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的PCM5141PWADC/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• Programmable miniDSP

• Market-Leading Low Out-of-Band Noise

• Selectable Digital-Filter Latency and Performance

• No DC Blocking Capacitors Required

• Integrated Negative Charge Pump

• Intelligent Muting System; Soft Up or Down Ramp

and Analog Mute For 120-dB Mute SNR

• Integrated High-Performance Audio PLL With

BCK Reference To Generate SCK Internally

• Accepts 16-, 20-, 24-, And 32-Bit Audio Data

• PCM Data Formats: I2S, Left-Justified, Right-

Justified, TDM / DSP

• SPI or I2C Control

• Software or Hardware Configuration

• Automatic Power-Save Mode When LRCK And

BCK Are Deactivated charge•

1.8-V or 3.3-V Fail-Safe LVCMOS Digital Inputs

• Single Supply Operation:

3.3-V Analog, 1.8-V or 3.3-V Digital

• Integrated Power-On Reset

• Small 28-pin TSSOP Package

2 Applications

• A/V Receivers

• DVD, BD Players

• HDTV Receivers

• Applications Requiring 2-VRMS Audio Output

3 Description

The PCM514x devices are a family of monolithic

CMOS-integrated circuits that include a stereo digital- to-analog converter and additional support circuitry in

a small TSSOP package. The PCM514x uses the

latest generation of TI’s advanced segment-DAC

architecture to achieve excellent dynamic performance and improved tolerance to clock jitter.

Members of the PCM514x family integrate a fully

programmable miniDSP core, allowing developers to integrate filters, dynamic range controls, custom

interpolators, and other differentiating features to their

products.

The PCM514x provides 2.1-VRMS ground centered

outputs, allowing designers to eliminate DC-blocking

capacitors on the output, as well as external muting

circuits traditionally associated with single-supply line

drivers.

The integrated line driver surpasses all other charge•

pump-based line drivers by supporting loads down to 1 kΩ, allowing the PCM514x to drive up to 10

products in parallel, such as LCD TV, DVDR, and AV

receivers.

The integrated PLL on the device removes the

requirement for a system clock (commonly known as

master clock), allowing a 3-wire I2S connection and

reducing system EMI.