DirectPath™, 112/106/100dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface
RMS
Check for Samples: PCM5100, PCM5101, PCM5102
•Selectable Digital-Filter Latency &
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/Down Ramp
& 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
SLAS764A –MAY 2011–REVISED MARCH 2012
Typical Performance (3.3V Power Supply)
ParameterPCM5102 / PCM5101 /
SNR112 / 106 / 100dB
Dynamic Range112 / 106 / 100dB
THD+N @ - 1dBFS–93 / –92 / –90dB
Full Scale Output2.1V
Normal 8× Oversampling Digital Filter Latency: 20/f
Low Latency 8× Oversampling Digital Filter Latency: 3.5/f
Sampling Frequency8kHz to 384kHz
System Clock Multiples (f
768, 1024, 1152, 1536, 2048, 3072; up to 50 MHz
): 64, 128, 192, 256, 384, 512,
SCK
PCM5100
(GND center)
RMS
S
S
Figure 1. PCM510x Functional Block Diagram
OTHER KEY FEATURES
•Accepts 16-, 24-, And 32-Bit Audio Data
•PCM Data Formats: I2S, Left-Justified
•Automatic Power-Save Mode When LRCK And
BCK Are Deactivated.
•3.3V Failsafe LVCMOS Digital Inputs
•Hardware Configuration
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2System Two Cascade, Audio Precision are trademarks of Audio Precision.
3DirectPath is a trademark of Texas, Instruments, Inc..
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
•Single Supply Operation:
– 3.3V Analog, 3.3V Digital
The PCM510x devices are a family of monolithic
CMOS integrated circuits that include a stereo digitalto-analog converter and additional support circuitry in
a small TSSOP package. The PCM510x uses the
latest generation of TI’s advanced segment-DAC
architecturetoachieveexcellentdynamic
performance and improved tolerance to clock jitter.
The PCM510x provides 2.1V
outputs, allowing designers to eliminate DC blocking
capacitors on the output, as well as external muting
circuits traditionally associated with single supply line
drivers.
ground centered
RMS
www.ti.com
The integrated line driver surpasses all other chargepump 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.
(LCD TV, DVDR, AV Receivers etc).
The integrated PLL on the device removes the
requirement for a system clock (commonly known as
master clock). This allows a 3-wire I2S connection,
along with reduced system EMI.
Intelligent clock error and PowerSense under voltage
protection utilizes a two level mute system for popfree performance. Upon clock error or system power
failure, the device digitally attenuates the data (or last
known good data), then mutes the analog circuit
ComparedwithexistingDACtechnology,the
PCM510x family offers up to 20dB lower out-of-band
noise, reducing EMI and aliasing in downstream
amplifiers/ADCs.(fromtraditional100kHzOBN
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.
over operating free-air temperature range (unless otherwise noted)
VALUEUNIT
Supply VoltageAVDD, CPVDD, DVDD–0.3 to 3.9
Digital Input Voltage–0.3 to 3.9V
Analog Input Voltage–0.3 to 3.9
Operating Temperature Range–25 to 85
Storage Temperature Range–65 to 150
THERMAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
are measured using the System Two Cascade™ audio measurement system by Audio Precision™ in the RMS mode.
(2) Output load is 10kΩ, with 470Ω output resistor and a 2.2nF shunt capacitor (see recommended output filter).
(3) Assert XSMT or both L-ch and R-ch PCM data are BPZ
(1)(2)
(Values shown for three devices PCM5102/PCM5101/PCM5100)
CPVDD1—Charge pump power supply, 3.3V
CAPP2OCharge pump flying capacitor terminal for positive rail
CPGND3—Charge pump ground
CAPM4OCharge pump flying capacitor terminal for negative rail
VNEG5ONegative charge pump rail terminal for decoupling, -3.3V
OUTL6OAnalog output from DAC left channel
OUTR7OAnalog output from DAC right channel
AVDD8-—Analog power supply, 3.3V
AGND9—Analog ground
DEMP10IDe-emphasis control for 44.1kHz sampling rate
FLT11IFilter select : Normal latency (Low) / Low latency (High)
SCK12ISystem clock input
BCK13IAudio data bit clock input
DIN14IAudio data input
LRCK15IAudio data word clock input
FMT16IAudio format selection : I2S (Low) / Left justified (High)
XSMT17ISoft mute control
LDOO18—Internal logic supply rail terminal for decoupling
DGND19—Digital ground
DVDD20—Digital power supply, 3.3V
APPLICATION INFORMATION
Reset and System Clock Functions
Power-On Reset Function
The PCM510x includes a power-on reset function shown in Figure 11. With VDD> 2.8V, the power-on reset
function is enabled. After the initialization period, the PCM510x is set to its default reset state.