L9216B/H
High-Voltage Ringing SLIC with Ground Start
Preliminary Data Sheet
September 2001
ac Applications
(continued)
Design Examples
(continued)
Third-Generation Codec ac Interface Network—Complex Termination
(continued)
Table 26. Parts List L9216; Agere T8536 Third-Generation Codec ac and dc Parameters; Fully
Programmable
Name
Value
Fault Protection
R
PT
50
Ω
R
PR
50
Ω
Protector
Agere L7591
Power Supply
C
BAT1
0.1
µF
C
BAT2
0.1
µF
D
BAT1
1N4004
C
CC
0.1
µF
C
F1
0.22
µF
C
F2
0.1
µF
Ring/Ring Trip
C
RING
0.47
µF
C
RT
0.1
µF
R
RT
383 kΩ
ac Interface
R
GX
4750
Ω
R
CIN
20 MΩ
C
TX
0.1
µF
C
C1
0.1
µF
Tolerance
1%
1%
—
20%
20%
—
20%
20%
20%
20%
20%
1%
1%
5%
20%
20%
Rating
Fusible or PTC Protection resistor*.
Fusible or PTC Protection resistor*.
—
Secondary protection.
100 V
50 V
—
10 V
100 V
100 V
10 V
10 V
1/16 W
1/16 W
1/16 W
10 V
10 V
V
BAT
filter capacitor.
V
BAT
filter capacitor. |V
BAT2
| < |V
BAT1
|.
Reverse current.
V
CC
filter capacitor.
Filter capacitor.
Filter capacitor.
ac-couple input ring signal.
Ring trip filter capacitor.
Ring trip filter resistor.
Sets T/R to VITR transconductance.
dc bias.
ac/dc separation.
dc blocking capacitor.
Function
* For loop stability, increase to 50
Ω
minimum if synthesizing 900
Ω
or 900
Ω
+ 2.16
µF
termination impedance.
42
Agere Systems Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
