HC55120CM INTERSIL [Intersil Corporation], HC55120CM Datasheet - Page 33

• Manufacturer Part Number: HC55120CM
• Description: Low Power Universal SLIC Family
• Manufacturer: INTERSIL [Intersil Corporation]

Basic Application Circuit
Design Parameters: Maximum on hook voltage = 0.775V
Current Limit = 31mA, Synthesize Device Impedance = 540
600 . Where applicable, these component values apply to the Basic Application Circuits for the HC55120, HC55121, HC55130/1, HC55140/1,
HC55142/3 and HC55150/1. Pins not shown in the Basic Application Circuit are no connect (NC) pins.
HC55120, HC55121, HC55130, HC55131, HC55140, HC55141, HC55142, HC55143, HC55150, HC55151
U1 - SLIC
U2 - Dual Asymmetrical Transient Voltage Suppressor
RP (Line Feed Resistors)
R1 (RDC_RAC Resistor)
R2, R3
R4 (RD Resistor)
R5 (ROH Resistor)
R6 (RILIM Resistor)
R7 (RSYNC_REV Resistor)
R8 (RZT Resistor)
R9, R10, R11
R12
C1 (Supply Decoupling), C2
C5 (Supply Decoupling)
C6 (Supply Decoupling)
C4, C7, C10, C11
C3
C8, C9
D1, Recommended if the VBL supply is not derived from the VBH Supply
-48V
-24V
RING
+5V OR
TIP
C
+12V
5
C
R
RELAY
6
12
COMPONENT
4-33
R
R
RING
GENERATOR
V
P
BAT
P
OPTIONAL
FIGURE 29. UniSLIC14 VOICE ONLY BASIC APPLICATION CIRCUIT
U2
TABLE 4. BASIC APPLICATION CIRCUIT COMPONENT LIST
R
R
D
2
3
1
+5V
C
C
1
C
9
+5V
C
C7
R
2
C
8
1
3
C
4
20
10
11
12
13
14
3
4
8
9
5
6
7
RING
BGND
TIP
RMS
V
RRLY
CH
V
V
RDC_RAC
CDC
DT
DR
CRT_REV_LVM
CC
BH
BL
(600 - 60), with 30 protection resistors, impedance across Tip and Ring terminals =
, Maximum Off hook Voice = 3.2V
U1
RSYNC_REV
GKD_LVM
UniSLIC14 Family
AGND
TISP1072F3
SPM
SHD
ILIM
R
V
V
RD
OH
RX
C1
C2
C3
TX
ZT
1N4004
VALUE
2200pF
41.2k
38.3k
33.2k
34.8k
0.47 F
107k
0.1 F
0.1 F
0.1 F
4.7 F
400
21k
20k
2M
30
27
26
25
28
1
24
23
22
21
19
15
18
17
16
Voice Only 28 Lead SOIC Package
R
R
R
R
R
8
7
6
5
4
PEAK
CONTROL LOGIC
††
C10
, Switch Hook Threshold = 12mA, Loop
TOLERANCE
††
Matched 1%
C11
†
††
20%
20%
20%
20%
20%
20%
N/A
N/A
1%
1%
1%
1%
1%
1%
1%
1%
5%
PERFORM TRANSHYBRID BALANCE
WHEN USING A NON-DSP CODEC.
NOT REQUIRED FOR DSP CODEC.
-
NON-DSP CODEC’s.
REQUIRED FOR DSP CODEC’s
NOT REQUIRED FOR
†
†
R
R
9
10
CODEC/FILTER
R
11
RATING
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
1/16W
2.0W
100V
100V
10V
50V
10V
50V
N/A
N/A
2W
-