PCM5101PWR.A中文资料德州仪器数据手册PDF规格书

1FEATURES

23• Market-Leading Low Out-of-Band Noise

• Selectable Digital-Filter Latency and

Performance

• No DC Blocking Capacitors Required

• Integrated Negative Charge Pump

• Internal Pop-Free Control For Sample-Rate

Changes Or Clock Halts

• Intelligent Muting System; Soft Up or Down

Ramp and Analog Mute For 120dB Mute SNR

With Popless Operation.

• Integrated High-Performance Audio PLL With

BCK Reference To Generate SCK Internally

• Small 20-pin TSSOP Package

OTHER KEY FEATURES

• Single Supply Operation:

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

– 3.3V Analog, 3.3V Digital

• PCM Data Formats: I2S, Left-Justified

• Integrated Power-On Reset

• Automatic Power-Save Mode When LRCK And

BCK Are Deactivated.

• 3.3V Failsafe LVCMOS Digital Inputs

• Hardware Configuration

APPLICATIONS

• A/V Receivers

• DVD, BD Players

• HDTV Receivers

• Applications Requiring 2VRMS Audio Output

DESCRIPTION

The PCM510x 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 PCM510x uses the latest generation of

TI’s advanced segment-DAC architecture to achieve excellent dynamic performance and improved tolerance to

clock jitter.

The PCM510x provides 2.1VRMS 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 1kΩ.

By supporting loads down to 1kΩ, the PCM510x can essentially drive up to 10 products in parallel, such as an

LCD TV, DVDR, AV Receivers and other devices.

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 under voltage protection utilizes a two level mute system for pop-free

performance. Upon clock error or system power failure, the device digitally attenuates the data (or last known

good data), then mutes the analog circuit

Compared with existing DAC technology, the PCM510x family offers up to 20dB lower out-of-band noise,

reducing EMI and aliasing in downstream amplifiers/ADCs. (from traditional 100kHz OBN measurements all the

way to 3MHz)

The PCM510x accepts industry-standard audio data formats with 16- to 32-bit data. Sample rates up to 384kHz

are supported.