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HC5503CBZ Datasheet(PDF) 14 Page - Renesas Technology Corp

Part # HC5503CBZ
Description  Low Cost 24V SLIC For PABX/Key Systems
PDF  17 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HC5503CBZ Datasheet(HTML) 14 Page - Renesas Technology Corp

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HC5503
FN4344 Rev 5.00
Page 14 of 17
June 2004
Schematic Diagram
FIGURE 8. FUNCTIONAL SCHEMATIC
VB2
VB1
VB2
VB3
VB4
VB5
5V
IB1 IB2 IB3 IB4 IB5 IB6 IB7 IB8
VBAT
IB9 IB10 IB11
VCC
VCC
A-100
TRANSV’L
I/V AMP
-
+
IB6
R6
R5
R11
VCC
R7
R8
R10
R9
R22
R23
R3
R4
R1
R2
R16
R15
VBAT
VBAT
R12
VBAT
VCC
A-200
LONG’L
I/V AMP
IB7
-
+
R20
VBAT
VCC
A-400
TIP FEED
AMP
IB4
-
+
RING
FEED
SENSE
VBAT
VBAT
5V
VB4
IB8
RING TRIP DETECTOR
+
SWITCH HOOK
VB1
IB6
+
R18
DETECTOR
VCC
QD28
QD27
VBAT
-
+
-
GND SHORTS
CURRENT
LIMITING
IB1
VB3
THERMAL
LIMITING
VB5
STTL
AND LOGIC
INTERFACE
RFC
SH
GK
VB5
-
+
IB2
LOAD CURRENT
LIMITING
R14
R13
VBAT
VBAT/2 REFERENCE
R21
VBAT
A-300
RING FEED
AMP
IB5
-
+
RING
RF
TIP
TF
10
2
3
1
9
RX
C2
VBAT
BAT
ANA
DIG
VCC
GND
GND
GND
21
22
11
12
23
6
4
VCC
5V IB10
VBAT
PD
15
RC
SHD
NC
16
13
14
TX
C1
RS
RD
8
7
24
5
R17
VB2
VCC
R19
VBAT
QD3 QD36
VOLTAGE AND CURRENT
BIAS NETWORK



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