PCM5121, PCM5122
www.ti.com
SLAS763A –AUGUST 2012–REVISED SEPTEMBER 2012
2V DirectPath™, 112/106dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface
RMS
Check for Samples: PCM5121, PCM5122
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FEATURES
Typical Performance (3.3V Power Supply)
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•
Register-Selectable Audio-Processing
Functions
Parameter
PCM5122
PCM5121
SNR
112dB
106dB
–
–
–
Dynamic Range Control (DRC)
Equalization (EQ)
Filtering
Dynamic Range
THD+N @ - 1dBFS
Full Scale Output
112dB
106dB
–93dB
–92dB
2.1VRMS (GND center)
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Market-Leading Low Out-of-Band Noise
Normal 8× Oversampling Digital Filter Latency: 20/fS
Selectable Digital-Filter Latency and
Performance
Low Latency 8× Oversampling Digital Filter Latency: 3.5/fS
Sampling Frequency
8kHz to 384kHz
•
•
•
No DC Blocking Capacitors Required
Integrated Negative Charge Pump
System Clock Multiples (fSCK): 64, 128, 192, 256, 384, 512,
768, 1024, 1152, 1536, 2048, 3072; up to 50 MHz
Internal Pop-Free Control For Sample-Rate
Changes Or Clock Halts
•
Intelligent Muting System; Soft Up or Down
Ramp and Analog Mute For 120dB Mute SNR
With Popless Operation
LINE OUT
Current
Segment
DAC
DIN (I2S)
Digital
Volume
Control
Current
Segment
DAC
DOUT (I2S)
through any
GPIO
Zero Data
Detector
MOSI/SDA/ATT2
MS/MODE2
Advanced Mute Control
SPI/I2C
GPIO
MODE1
MC/SCL/ATT1
MISO/ADR1/FMT
Clock Halt
Detection
GPIO6/FLT
GPIO5/ATT0
GPIO4/MAST
GPIO3/AGNS
GPIO2/ADR2/DOUT
Program
RAM
PCM512x
LRCK
BCK
CPVDD (3.3V)
AVDD (3.3V)
DVDD (1.8V or 3.3V)
GND
Power
Supply
PLL
Clock
UVP/
Reset
Charge
MCK
VCom
Pump
POR
CAPP
CAPM
VNEG
UVP/XSMT
Figure 1. PCM512x Functional Block Diagram
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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.
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System Two Cascade, Audio Precision are trademarks of Audio Precision.
DirectPath 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.
Copyright © 2012, Texas Instruments Incorporated