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RC96V24DP
3.0 Software Interface
Single Device Data/Modem Data Pump
3.7 Modem Interface Circuit
D96V24DSA
3-11
Figure 3-1. Typical Modem Interface Circuit
DECOUPLING CAPS
TO DAA
INTERFACE
RADVR*
TXA2
RESET*
D0
D1
D2
D3
D4
D5
D6
D7
TXA1
RXA
READ*
CS*
RS3
RS4
WRITE*
RS2
RS1
RS0
XTCLK
TXD
TDCL K
RDCLK*
RXD
IRQ*
EYECLK
EYEX
EYEY
EYESYNC
RESET*
RING*
VCC
VCC
VCC
VCC
C5 2200
pF
C10
.1
C11
.1
C13
10
16V
L1
47
C7
56P F 5%
C17 5 6 P F 5%
C14
.1
+
-
U6
LM386
2
3
5
7
C15
.1
C8
.1
C9
12
10%
20V
C21
.1
R13
180k
R12
100
C16
220
16V
C18
1000 pF
C12
.1
Y1
1 6 .000312MHZ
3
LS1
161201
U7
RC96V24
13
27
46
9
8
7
61
60
59
58
57
18
63
62
67
68
1
2
3
19
16
64
66
65
28
29
10
17
54
40
52
22
48
25
51
20
49
12
11
26
45
21
50
47
23
24
43
39
41
32
31
30
35
6
37
34
33
5
42
53
36
38
44
15
4
14
56
55
VCC
RRSTO
RRSTI
EYESYNC
EYEX
EYEY
D1
D2
D3
D4
D5
TXD
IRQ*
D0
RS4
RS3
RS2
RS1
RS0
TDCLK
XTCLK
WRITE*
READ*
CS*
RDCLK*
RXD
RESET*
DGND1
DGND2
AGND
VAA
TDACO
TDACI
MODEO
MODEI
TRSTO
TRSTI
XTLO
XTLI
RSTBO
RSTBI
TSTBO
TSTBI
RADCO
RADCI
RAGCO
RAGCI
RBVDR*
RADVR
RXA
TXA1
TXA2
VC
RING*
NC
AGCIN
RFILO
SLEEP*
SLEEPI*
SPKR
NC
NC
NC
GP16
TEST*
GP18
D6
D7
C8
.1
C18
.1 uF
Figure 3-2. Typical DAA Interface Circuit
RADVR*
TXA1
RING*
RXA
TXA2
VCC
VCC
R1
18
1W
RV1
V150LA2
TOP
J4
T E L CO4/6
1
2
3
4
5
6
8
7
R2
7.5K
1W
D1
1 N 970B
D2
1 N 970B
LINE
T1
TTC143
K1
RELAY
1
4
2
3
D5
1 N 749A
R3
100K
R6
536
1%
D4
1 N 749A
C20
.1
U1
4N35
6
4
5
1
3
2
D3
1 N 4148
R10 18
C2
.001
10%
1KV
C3
.47
10%
250V
C1
.001
10%
1KV
TOP
J3
T E L CO4/6
1
2
3
4
5
6
8
7
C4
.022uF
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