pbl386141 ETC-unknow, pbl386141 Datasheet - Page 15

• Manufacturer Part Number: pbl386141
• Description: Pbl 386 14/1 Subscriber Line Interface Circuit
• Manufacturer: ETC-unknow

Figure 14. Single-channel subscriber line interface with PBL 386 14/1 and combination CODEC/filter
Ringing State
In the ringing state the SLIC will behave as
in the active state with the exception that
the ring relay driver and the ring trip detec-
tor are activated. The ring trip detector will
indicate off hook with a logic low level at the
detector output.
RESISTORS (values according to IEC-
63 E96 series):
R
R
R
R
R
R
R
R
R
R
R
R
R
R
LD
LC
REF
T
TX
B
RX
1
2
3
4
RT
RF
F1
+12 V /+5V
, R
RING
TIP
F2
VB2
VB
= 49.9 k
= 18.7 k
= 15 k
= 105 k
= 32.4 k
= 57.6 k
= 105 k
= 604 k
= 604 k
= 249 k
= 280 k
= 332
= 332
= Line resistor, 40
KR
E
RG
R
RF
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
5% 2 W
5% 2 W
R
R
R
RT
F1
F2
1
1
1
1
1
1
1
1
1
1
1
D
/
/
/
/
/
/
/
/
/
/
/
10
10
10
10
10
10
10
10
10
10
10
BB
W
W
W
W
W
W
W
W
W
W
W
1% match
C
OVP
GG
R
R
1
2
VB
Active State
TIPX is the terminal closest to ground and
sources loop current while RINGX is the
more negative terminal and sinks loop cur-
rent. The loop current or the ground key
detector is activated. The loop current de-
tector indicates off hook with a logic low
level and the ground key detector indicates
active ground key with a logic high level
present at the detector output.
CAPACITORS: (values according to
IEC-63 E6 series):
C
C
C
C
C
C
C
C
C
C
C
C
*100V if VEE pin connected to VBAT, VBAT2
B
B2
VCC
VEE
TC
RC
HP
LP
GG
1
2
SPR
C
C
B2
B
C
1
C
C
RC
TC
R
= 100 nF
= 150 nF
= 100 nF
= 100 nF
= 1.0 nF
= 1.0 nF
= 68 nF
= 470 nF
= 220 nF
= 330 nF
= 330 nF
= optional
3
R
4
C
C
LP
HP
C
2
100 V 20%
100 V 20%
100 V 20%
100 V 20%
100 V 20%
100 V 20%
100 V 20%
63 V 10%
63 V 10%
PBL 386 14/1
RRLY
HP
RINGX
BGND
TIPX
VBAT
VBAT2
NC
PSG
DR
NC
10 V 20%
10 V* 20%
10 V 20%
TS
LP
DT
AGND
RSN
DET
VCC
NC
REF
VEE
VTX
PLD
PLC
C1
C2
C3
NC
VBAT<VEE<-5 V
VCC
VEE
R
R
R
DIODES:
D
D
D
OVP:
Secondary protection ( e g Power
Innovations TISP PBL2). The ground termin-
als of the secondary protection should be
connected to the common ground on the
Printed Board Assembly with a track as short
and wide as possible, preferably a
groundplane.
Active Temperature guard state
The temperature guard indicates if an error
has occurred and the temperature guard is
activated. The output pin DET is forced to
a logic low level when activated .
LD
LC
REF
B
B2
BB
+5 V
R
T
R
R
RX
TX
SYSTEM CONTROL
= 1N4448
= 1N4448
= 1N4448
INTERFACE
C
C
VCC
VEE
R
B
VCC
VEE
PBL 386 14/1
-
+
out
CODEC/
Filter
out
15