PCM5242RHBR.A中文资料德州仪器数据手册PDF规格书

1 Features

1• Differential DirectPath™ Ground Biased Outputs

• 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 120dB Mute SNR

• Integrated High-Performance Audio PLL With

BCK Reference to Generate SCK Internally

• Accepts 16-, 24-, and 32-Bit Audio Data

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

Justified, TDM

• SPI or I2C Control

• Software or Hardware Configuration

• Automatic Power-Save Mode When LRCK And

BCK Are Deactivated

• 1.8V or 3.3V Failsafe LVCMOS Digital Inputs

• Single Supply Operation:

– 3.3V Analog, 1.8V or 3.3V Digital

• Integrated Power-On Reset

• Small 32-terminal QFN Package

2 Applications

• HiFi Smartphone

• A/V Receivers

• DVD, BD Players

• HDTV Receivers

3 Description

The PCM5242 is a monolithic CMOS integrated

circuit that includes a stereo digital-to-analog converter and additional support circuitry in a small

QFN package. The PCM5242 uses the latest

generation of TI’s advanced segment-DAC

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

The PCM5242 integrates a fully programmable

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

other differentiating features to their products.

The PCM5242 provides 4.2VRMS ground-centered

differential 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 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.