PCM5141 Texas instruments

PCM5141

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PCM5141

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Описание

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 TIs 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.

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
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

Number of DAC channels	2
Analog inputs	0
Analog outputs	2
DAC SNR (typ) (dB)	106
Sampling rate (max) (kHz)	384
Control interface	H/W, I2C, SPI
Resolution (Bits)	32
Architecture	Delta Sigma with line driver
Operating temperature range (°C)	-25 to 85
Rating	Catalog