Texas Instruments PCM2903 Evaluation Module PCM2903EVM-U PCM2903EVM-U 데이터 시트
제품 코드
PCM2903EVM-U
PCM2903
TORX
TOTX
S/PDIF IN
S/PDIF OUT
USB
Connector
USB Interface
Operation Control
5V
GND
CN001
3.3 V
REG
JP
12-MHz XTAL
CN002
V
CC
V
DD
CN003
Analog Out
Analog In
Lch
Rch
SSPND
V
L/R
OUT
V L/R
IN
DIN
DOUT
D+/–
PULLUP
V
BUS
OPA2353
LPF
Lch
Rch
OPA2353
LPF
SW001 - SW003
Description
1.1
Related Documentation From Texas Instruments
1. PCM2903C, Stereo Audio Codec with USB Interface, Single-Ended Analog In/Out and S/PDIF data
sheet (
2. Key Differences Between the PCM270x and PCM270xC application report (
1.2
Block Diagram
Figure 1. PCM2903EVM Block Diagram
1.3
Connectors and Jumpers
•
CN001
: Power supply, 5 V
•
CN002
: Jumper (connecting regulated 3.3 V)
•
CN003
: USB port (series-B connector), connects to USB cable/connector
•
CN101
: Audio LINE OUT (3.5-mm jack, 1.98 VPP full scale)
•
CN102
: Audio LINE IN (3.5 mm jack, 1.98 VPP full scale)
•
U002
: S/PDIF In
•
U003
: S/PDIF Out
1.4
Switch Settings
•
SW001: Human interface device (HID) key state (mute)
•
SW002: HID key state (volume up)
•
SW003: HID key state (volume down)
These switches must be set to LOW logic level when no HID is being used, or toggled HIGH for HID
control of their respective parameters.
control of their respective parameters.
1.5
LED Monitor
•
D001 (red): Indicates suspend state
2
PCM2903EVM-U Evaluation Module
SLEU117 – March 2012
Copyright © 2012, Texas Instruments Incorporated