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PCM2903C Datasheet(PDF) 6 Page - Texas Instruments

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Part # PCM2903C
Description  Stereo Audio Codec with USB Interface, Single-Ended Analog Input/Output, and S/PDIF
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

PCM2903C Datasheet(HTML) 6 Page - Texas Instruments

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D+
D
-
V
BUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
V
CCC
AGNDC
V L
IN
V R
IN
V
COM
SSPND
DIN
V
CCX
AGNDX
XTO
V
CCP2
DGND
V
CCP1
V
L
OUT
XTI
DOUT
V
DD
AGNDP
V
R
OUT
PCM2903C
SBFS038 – JUNE 2012
www.ti.com
PIN CONFIGURATIONS
DB PACKAGE
SSOP-28
(TOP VIEW)
PIN DESCRIPTIONS
PIN
NAME
NO.
I/O
DESCRIPTION
AGNDC
11
Analog ground for codec
AGNDP
18
Analog ground for PLL
AGNDX
22
Analog ground for oscillator
D–
2
I/O
USB differential input/output minus(1)
D+
1
I/O
USB differential input/output plus(1)
DGND
26
Digital ground
DGNDU
4
Digital ground for USB transceiver
DIN
24
I
S/PDIF input (2)
DOUT
25
O
S/PDIF output
HID0
5
I
HID key state input (mute), active-high(3)
HID1
6
I
HID key state input (volume up), active-high(3)
HID2
7
I
HID key state input (volume down), active-high(3)
SEL0
8
I
Must be set to high(4)
SEL1
9
I
Connected to the USB port of VBUS
(4)
SSPND
28
O
Suspend flag, active-low (Low: suspend, High: operational)
VBUS
3
Must be connected to VDD
VCCC
10
Analog power supply for codec(5)
VCCP1
17
Analog power supply for PLL(5)
VCCP2
19
Analog power supply for PLL(5)
VCCX
23
Analog power supply for oscillator(5)
VCOM
14
Common for ADC/DAC (VCCC/2)
(5)
VDD
27
Digital power supply(5)
VINL
12
I
ADC analog input for L-channel
VINR
13
I
ADC analog input for R-channel
VOUTL
16
O
DAC analog output for L-channel
VOUTR
15
O
DAC analog output for R-channel
XTI
21
I
Crystal oscillator input(6)
XTO
20
O
Crystal oscillator output
(1)
LV-TTL level.
(2)
3.3-V CMOS-level input with internal pulldown, 5-V tolerant.
(3)
3.3-V CMOS-level input with internal pulldown. This pin informs the PC of serviceable control signals such as mute, volume up, or
volume down, which have no direct connection with the internal DAC or ADC. See the Interface #3 and End-Points sections.
(4)
TTL Schmitt trigger, 5-V tolerant.
(5)
Connect a decoupling capacitor to GND.
(6)
3.3-V CMOS-level input.
6
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Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s): PCM2903C


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