PCM5141_16 Datasheet, PDF (1/123 Pages) Texas Instruments – Audio Stereo DAC

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PCM5141, PCM5142
SLAS759B – AUGUST 2012 – REVISED JANUARY 2016
PCM514x 2-V_RMS DirectPath™, 112/106-dB Audio Stereo DAC
With 32-bit, 384-kHz PCM Interface
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
• 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-V_RMS 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-V_RMS 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.
DEVICE NAME
PCM5141
PCM5142
Device Information
PACKAGE
BODY SIZE (NOM)
TSSOP (28)
9.70 mm × 4.40 mm
.
Simplified System Diagram
2ch Single Ended
PCM1863/5
IN
AUX
2ch Single Ended
I2S
BCK
LRCK
DOUT
miniDSPs,
Filters
Current Segment DAC
PCM514x
TPA3130
TPA6120A2
Analog
Sensor
- Light Intensity
- Ultrasonic
- Battery Level
BT Module
MSP430
WiLAN chip
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.