PBL38621-2 Ver la hoja de datos (PDF) - Ericsson
Número de pieza
componentes Descripción
Fabricante
PBL38621-2 Datasheet PDF : 16 Pages
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PBL 386 21/2
PTG 1
24 VTX
RRLY 2
23 AGND
HP 3
22 RSN
RINGX 4
BGND 5
TIPX 6
VBAT 7
24-pin SOIC
and
24-pin SSOP
21 REF
20 PLC
19 POV
18 PLD
VBAT2 8
17 VCC
PSG 9
16 DET
LP 10
DT 11
DR 12
15 C1
14 C2
13 C3
RINGX 5
BGND 6
TIPX 7
VBAT 8
VBAT2 9
PSG 10
NC 11
28-pin PLCC
25 NC
24 REF
23 PLC
22 POV
21 PLD
20 VCC
19 NC
Figure 7. Pin configuration, 24-pin SSOP, 24-pin SOIC and 28 pin PLCC package, top view.
Pin Description
Refer to figure 7.
PLCC
Symbol
1
PTG
2
RRLY
3
HP
4
NC
5
RINGX
6
BGND
7
TIPX
8
VBAT
9
VBAT2
10
PSG
11
NC
12
LP
13
DT
14
DR
Description
Prog. Transmit Gain. Left open transmit gain = 0.0 dB, connected to AGND transmit gain = -6.02 dB.
Ring Relay driver output. The relay coil may be connected to maximum +14V.
Connection for High Pass filter capacitor, C . Other end of C connects to TIPX.
HP
HP
No internal Connection.
The TIPX and RINGX pins connect to the tip and ring leads of the two-wire interface via overvoltage
protection components and ring relay (and optional test relay).
Battery Ground, should be tied together with AGND.
The TIPX and RINGX pins connect to the tip and ring leads of the two-wire interface via overvoltage
protection components and ring relay (and optional test relay).
Battery supply Voltage. Negative with respect to GND.
An optional second (2) Battery Voltage connects to this pin via an external diode.
Programmable Saturation Guard. The resistive part of the DC feed characteristic is not used for
PBL 386 21/2, RSG = 0 Ω.
No internal Connection.
Connection for Low Pass filter capacitor, CLP. Other end of CLP connects to VBAT.
Input to the ring trip comparator. With DR more positive than DT the detector output, DET, is at logic
level low, indicating off-hook condition. The external ring trip network connects to this input.
Input to the ring trip comparator. With DR more positive than DT the detector output, DET, is at logic
level low, indicating off-hook condition. The external ring trip network connects to this input.
8
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