PCM5100A_15 Datasheet, PDF (1/42 Pages) Texas Instruments – Audio Stereo DAC

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PCM5100A, PCM5101A, PCM5102A
PCM5100A-Q1, PCM5101A-Q1, PCM5102A-Q1
SLAS859C – MAY 2012 – REVISED MAY 2015
PCM510xA 2.1 V_RMS, 112/106/100 dB Audio Stereo DAC
with PLL and 32-bit, 384 kHz PCM Interface
1 Features
•1 Ultra Low Out-of-Band Noise
• Integrated High-Performance Audio PLL with BCK
Reference to Generate SCK Internally
• Direct Line Level 2.1-V_RMS Output
• No DC Blocking Capacitors Required
• 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 digital-
to-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-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 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).
Table 1. Device Information⁽¹⁾
PART NUMBER
PCM5102A
PCM5101A
PCM5100A
PACKAGE
TSSOP (20)
BODY SIZE (NOM)
5.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Simplified System Diagram
2ch Single Ended
PCM1863/5
IN
AUX
2ch Single Ended
I2S
BCK
LRCK
PCM510xA
Charge Pump
OUT
LINE
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.