PCM5252 Datasheet, PDF (1/119 Pages) Texas Instruments – Purepath Smart Amp PCM5252 4.2-VRMS DirectPath, 114-dB Audio Stereo Differential-

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PCM5252
SLASE63 – NOVEMBER 2014
Purepath™ Smart Amp PCM5252 4.2-V_RMS DirectPath™, 114-dB Audio Stereo Differential-
Output DAC with 32-bit, 384-kHz PCM Interface
1 Features
•1 Differential DirectPath™ Ground Biased Outputs
• Smart Amplifier Technology
• 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-pin VQFN Package
2 Applications
• HiFi Smartphone
• A/V Receivers
• DVD, BD Players
• HDTV Receivers
3 Description
The PCM5252 is a monolithic CMOS integrated
circuit that includes a stereo digital-to-analog
converter and additional support circuitry in a small
QFN package. The PCM5252 uses the latest
generation of TI’s advanced segment-DAC
architecture to achieve excellent dynamic
performance and improved tolerance to clock jitter.
The PCM5252 integrates a fully programmable
miniDSP core, allowing developers to integrate filters,
dynamic range controls, custom interpolators and
other differentiating features to their products.
The PCM5252 integrates ROM components of TI's
PurePath™ Smart Amp technology, which allows
speakers to be driven with more peak power than
their average-power rating, without damage to the
speaker by voice coil over excursion or thermal
overload.
The PCM5252 provides 4.2V_RMS 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.
Block diagrams for the can be found at Functional
Block Diagram.
PART NAME
PCM5252
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
VQFN (32)
5.00mm × 5.00mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified System Diagram
2ch Single Ended
PCM1863/5
IN
AUX
2ch Single Ended
I2S
BCK
LRCK
DOUT
miniDSPs,
Filters
Current Segment DAC
PCM5252
TAS5630B
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.