Datasheet
CPVDD
CAPP
CPGND
CAPM
VNEG
OUTL
OUTR
AVDD
AGND
VCOM
SDA
SCL
GPIO5
GPIO4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DVDD
DGND
LDOO
XSMT
ADR1
LRCK
DIN
BCK
SCK
GPIO6
MODE2
MODE1
ADR2
GPIO3
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PCM5141, PCM5142
www.ti.com
SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012
PCM514x pin assignments-2 MODE1 tied DGND and MODE2 tied DVDD : I
2
C mode
PCM514x (top view)
Table 3. PCM514x I
2
C mode Terminal Functions
TERMINAL
I/O DESCRIPTIONS
NAME PIN
CPVDD 1 - Charge pump power supply, 3.3V
CAPP 2 O Charge pump flying capacitor terminal for positive rail
CPGND 3 - Charge pump ground
CAPM 4 O Charge pump flying capacitor terminal for negative rail
VNEG 5 O Negative charge pump rail terminal for decoupling, -3.3V
OUTL 6 O Analog output from DAC left channel
OUTR 7 O Analog output from DAC right channel
AVDD 8 - Analog power supply, 3.3V
AGND 9 - Analog ground
VCOM output (Optional mode selected by register; default setting is VREF mode.) When
VCOM 10 I in VREF mode (default), this pin ties to GND. When in VCOM mode, decoupling capacitor
to GND is required.
SDA 11 I/O Input data for I
2
C
(1)(2)
SCL 12 I Input clock for I
2
C
(2)
GPIO5 13 I/O General purpose digital input and output port
GPIO4 14 I/O General purpose digital input and output port
GPIO3 15 I/O General purpose digital input and output port
ADR2 16 I 2nd LSB address select bit for I
2
C
MODE1 17 I Mode-control selection pins
(2)
• MODE1=Low, MODE2=Low : Hardwired mode
• MODE1=Low, MODE2=High : I
2
C mode
MODE2 18 I
• MODE1=High : SPI mode, MODE2 pin changes MS pin (chip select
for SPI)
GPIO6 19 I/O General purpose digital input and output port
SCK 20 I System clock input
(2)
BCK 21 I/O Audio data bit clock input (slave) or output (master)
(2)
DIN 22 I Audio data input
(2)
LRCK 23 I/O Audio data word clock input (slave) or output (master)
(2)
ADR1 24 I LSB address select bit for I
2
C
XSMT 25 I Soft mute control : Soft mute (Low) / soft un-mute (High)
(2)
LDOO 26 - Internal logic supply rail terminal for decoupling, 1.8V
DGND 27 - Digital ground
DVDD 28 - Digital power supply, 3.3V or 1.8V
(1) Open-drain configuration in out mode.
(2) Failsafe LVCMOS Schmitt trigger input.
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