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PCM2901EG4 Datasheet(PDF) 7 Page - Texas Instruments

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Part # PCM2901EG4
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

PCM2901EG4 Datasheet(HTML) 7 Page - Texas Instruments

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PCM2901
PCM2903
SLES034C – MARCH 2002 – REVISED NOVEMBER 2007
PCM2901 TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
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
HID0
5
I
HID key state input (mute), active-high(2)
HID1
6
I
HID key state input (volume up), active-high(2)
HID2
7
I
HID key state input (volume down), active-high(2)
SEL0
8
I
Must be set to high(3)
SEL1
9
I
Connected to the USB port of VBUS
(3)
SSPND
28
O
Suspend flag, active-low (Low: suspend, High: operational)
TEST0
24
I
Test pin, must be connected to GND
TEST1
25
O
Test pin, must be left open
VBUS
3
Must be connected to VDD
VCCC
10
Analog power supply for codec(4)
VCCP1
17
Analog power supply for PLL(4)
VCCP2
19
Analog power supply for PLL(4)
VCCX
23
Analog power supply for oscillator(4)
VCOM
14
Common for ADC/DAC (VCCC/2)
(4)
VDD
27
Digital power supply(4)
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(5)
XTO
20
O
Crystal oscillator output
(1)
LV-TTL level
(2)
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.
(3)
TTL Schmitt trigger, 5-V tolerant
(4)
Connect a decoupling capacitor to GND.
(5)
3.3-V CMO- level input
Copyright © 2002–2007, Texas Instruments Incorporated
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Product Folder Link(s): PCM2901 PCM2903


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