XMOS XS1-L1, Руководство пользователя

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USB Audio 2.0 Reference Design, XS1-L1 Edition Hardware Manual (1.0) 17/18
A
XC-6 USB AUDIO
SEPT 14 2009
CODEC
1
1
A3
SHEET NAME
PROJECT NAME
REV
DATE SIZE
OF
SHEET
Copyright (c) 2009 XMOS Ltd.
C54 100N
C43 10U
+4V3A
100N C55
+3V3
SDOUT
MDIV2 RST_N
SDIN SCLK LRCK
+3V3
10K
R37
C41
10U
10K
R35
2N2 C49
R36
10K
C50 2N2
R42
470R
10U
C42
C44
10U
R39 4K7
R32
3K3
C46 220P
3K3
R33
4K7 R40
470R
R41
220P C45
10U
C39
10U C40
C51 100N
100N C52
47U C48
+3V3
47K
R34
+4V3A
1R
R30
CS4270
U13
7 9
10 11 14 16 15
19 18 21 24 8 5 22 23 17 20 6
12
3 1
13
4 2
LRCK SCLK MDIV2 SDIN MCLK MDIV1
DGND AGND
VQ
AOUTB AOUTA
VD
VLC
MUTEB_N MUTEA_N
FILTP
VA
AINA AINB RST_N I2S/LJ_N M0 M1 SDOUT
MCLK
100P
C47
6K8
R31
2K7
R38
100N C53
+4V3A
TPS73001 U14
5
2
4
1
6
3
EN
OUT
IN
NR
GND
FB
2U2 C56
4U7 C38
+5V
SJ-3523-SMT J5
3 2 1
J6
SJ-3523-SMT
3 2 1
NC NC
MDIV PINS SELECT CLOCK RATIOS. SEE PAGE 23 OF DATASHEET. I2S/LJ_N PULLED HIGH : I2S INTERFACE FORMAT. M1 = 0 : NOT USED IN STAND ALONE SLAVE MODE M0 = 0 : DE-EMPHASIS OFF SDOUT PULLED LOW BY 47K - SLAVE MODE CODEC DEFAULTS TO STAND ALONE MODE
4V3A LDO REGULATOR
VOUT = 1.225 * (1 + 6K8/2K7) = 4.31V VREF = 1.225V
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