Texas Instruments PCM5122 Evaluation Module PCM5122EVM-U PCM5122EVM-U 数据表
产品代码
PCM5122EVM-U
A
u
d
io
I
n
te
rf
a
c
e
In
te
rp
o
la
ti
o
n
F
ilt
e
r
3
2
-b
it
∆
Σ
M
o
d
u
la
to
r
Current
Segment
DAC
Segment
DAC
I/V
A
n
a
lo
g
M
u
te
Zero Data
Detector
PLL
Clock
Charge
Pump
VCom
POR
Clock Halt
Detection
Advanced Mute Control
MCK
BCK
LRCK
CAPP
CAPM
VNEG
UVP/XSMT
LINE OUT
DOUT (I
2
S)
(through
any GPIO)
PCM514x
P
ro
g
ra
m
m
a
b
le
m
in
iD
S
P
MODE1
MS/MODE2
MOSI/SDA/ATT2
MC/SCL/ATT1
GPIO6/FLT
MISO/ADR1/FMT
GPIO
Power
Supply
CPVDD (3.3V)
AVDD (3.3V)
DVDD (1.8V or 3.3V)
GND
AVDD (3.3V)
DVDD (1.8V or 3.3V)
GND
Program
RAM
Digital
Volume
Control
DIN (I
2
S)
I/V
Current
Segment
DAC
Segment
DAC
A
n
a
lo
g
M
u
te
SPI/I
2
C
GPIO5/ATT0
GPIO4/MAST
GPIO3/AGNS
GPIO2/ADR2/DOUT
GPIO4/MAST
GPIO3/AGNS
GPIO2/ADR2/DOUT
UVP/
Reset
SLAS759A – AUGUST 2012 – REVISED SEPTEMBER 2012
2V
RMS
DirectPath™, 112/106dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface
Check for Samples:
1
FEATURES
Typical Performance (3.3V Power Supply)
23
•
Programmable miniDSP
Parameter
PCM5142
PCM5141
•
Market-Leading Low Out-of-Band Noise
SNR
112dB
106dB
•
Selectable Digital-Filter Latency and
Dynamic Range
112dB
106dB
Performance
THD+N @ - 1dBFS
–93dB
–92dB
•
No DC Blocking Capacitors Required
Full Scale Output
2.1V
RMS
(GND center)
•
Integrated Negative Charge Pump
Normal 8× Oversampling Digital Filter Latency: 20t
S
•
Internal Pop-Free Control For Sample-Rate
Low Latency 8× Oversampling Digital Filter Latency: 3.5t
S
Changes Or Clock Halts
Sampling Frequency
8kHz to 384kHz
•
Intelligent Muting System; Soft Up or Down
System Clock Multiples (f
SCK
): 64, 128, 192, 256, 384, 512,
768, 1024, 1152, 1536, 2048, 3072; up to 50 MHz
Ramp and Analog Mute For 120dB Mute SNR
With Popless Operation
With Popless Operation
•
Integrated High-Performance Audio PLL With
BCK Reference To Generate SCK Internally
BCK Reference To Generate SCK Internally
•
Accepts 16-, 24-, And 32-Bit Audio Data
Figure 1. PCM514x Functional Block Diagram
space
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.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
System Two Cascade, Audio Precision are trademarks of Audio Precision.
3
DirectPath is a trademark of Texas, Instruments, Inc..
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.