PCM5100APWRG4中文资料德州仪器数据手册PDF规格书

1 Features

1• Ultra Low Out-of-Band Noise

• Integrated High-Performance Audio PLL with BCK

Reference to Generate SCK Internally single•

Direct Line Level 2.1-VRMS Output

• No DC Blocking Capacitors Required charge•

Line Level Output Down to 1KΩ

• Intelligent Muting System; Soft Up or Down Ramp

and Analog Mute For 120-dB Mute SNR

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

• PCM Data Formats: I2S, Left-Justified

• Automatic Power-Save Mode When LRCK And

BCK Are Deactivated

• 1.8 V or 3.3 V Failsafe LVCMOS Digital Inputs

• Simple Configuration Using Hardware Pins

• Single-Supply Operation: 14

– 3.3 V Analog, 1.8 V or 3.3 V Digital

• Qualified in Accordance with AEC-Q100

2 Applications

• A/V Receivers, DVD, BD Players

• Automotive Infotainment and Telematics

• HDTV Receivers

• Aftermarket Automotive Amplifiers

3 Description

The PCM510xA devices are a family of monolithic

CMOS-integrated circuits that include a stereo digitalto-

analog converter and additional support circuitry in

a small TSSOP package. The PCM510xA devices

use the latest generation of TI’s advanced segment-

DAC architecture to achieve excellent dynamic

performance and improved tolerance to clock jitter.

Using Directpath™ charge-pump technology, the

PCM510xA devices provide 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 per pin.

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.

Intelligent clock error and PowerSense undervoltage

protection utilizes a two-level mute system for pop-

free performance.

Compared with many conventional switched capacitor

DAC architectures, the PCM510xA family offers up to

20 dB lower out-of-band noise, reducing EMI and

aliasing in downstream amplifiers/ADCs, measured from the traditional 100-kHz OBN measurements to 3

MHz).