Digital Voice Systems AMBE-2000 - Page 59

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AMBE-2000™ and AMBE-2020™ Vocoder Chip Interface Applications Note Jan 03
C7
100nF
Title
Size
Document Number
Rev
Date:
Sheet
of
1
1
PCM3500
B
1
1
Monday, February 03, 2003
Analog In
C6
1nF
R4
220
+
C4
10uF
J1
Handset
2
2
3
3
1
1
4
4
R9
4.7K
+
C14
10uF
3.3VA
R7
5.6K
R6
10K
C10
0.2uF
U2
PCM3500
Vcom
1
Vref1
2
Vref2
3
Vin
4
AGND
5
M/S
6
TSC
7
BCK
8
FS
9
DIN
10
DOUT
11
FSO
12
DGND
14
Vdd
13
Vcc
24
AGND
23
Vout
22
AGND
21
/PDWN
20
Loop
19
HPFD
18
XTI
17
XT0
16
SCKIO
15
3.3 V
CODEC_TX/RX_CLK
CODEC_TX/RX_STRB
+
-
U1B
5
6
7
R5
220K
3.3VA
R10
10K
3.3VA
+
C13
10uF
R8
10K
Analog Out
3.3 V
3.3 V
Y1
1
2
4.096 MHz
C8
1
2
C9
1
2
22pf
22pf
C11
1
2
C12
1
2
0.1uF
4.7uF
CODEC_RX_DATA
CODEC_TX_DATA
1
2
3.3 V
C5
1
2
C3
1
2
C2
1
2
+
-
U1A
3
2
1
4
11
C1
47nF
2.2uF
4.7uF
4.7uF
3.3VA
R1
20K
R2
2.1K
R3
887
Figure 2