MC14555 MOTOROLA [Motorola, Inc], MC14555 Datasheet - Page 13

• Manufacturer Part Number: MC14555
• Description: PCM Codec-Filter
• Manufacturer: MOTOROLA [Motorola, Inc]

MOTOROLA
NOTE: Six resistors and two capacitors on the two–wire side can be 5% tolerance.
1N4002
0.01 F
50 V
RING
0.01 F
Figure 4. A Complete Single Party Channel Unit Using MC145554/57 PCM Codec–Filter and MC33120 SLIC
TIP
– 48 V
50 V
1N4002
1N4002
1N4002
1/4 W
1/4 W
– 48 V
100
100
MJD253
MJD243
9.1 k
9.1 k
1 k
1 k
20
19
18
17
16
5
4
3
2
1
V CC
EP
BP
CP
TSI
RSI
CN
BN
EN
V EE
MC33120
PDI/ST2
V DG
RFO
VQB
V DD
V AG
TXO
ST1
RXI
CF
20
15
12
13
14
9
10
8
11
6
7
300
+ 5 V
4.7 k
+
1 F
10 F, 50 V
+
+
1.0 F, 50 V
5 F, 16 V
20.6 k
48.5 k
10 k
MC145554 MC145557 MC145564 MC145567
47.4 k
1 F
HOOK STATUS/
FAULT INDICATION
49.0 k
15
14
16
3
2
V FRO
VF X I–
GS X
VF X I+
GNDA
MC145554/7
MCLK R
MCLK X
BCLK R
BCLK X
V CC
FS X
FS R
TS X
V BB
D X
D R
4
5
7
8
9
6
1
12
10
11
13
+ 5 V
– 5 V
TO PCM HWY
8 kHz SYNC
DATA CLOCK
MC145554 =
MC145557 =
1.544 MHZ
2.048 MHz
13