PBL38640-2 Ericsson, PBL38640-2 Datasheet - Page 8

• Manufacturer Part Number: PBL38640-2
• Description: Subscriber Line Interface Circuit
• Manufacturer: Ericsson

Pin Description
8
Refer to figure 8.
PLCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Figure 8. Pin configuration, 24-pin SOIC, 24-pin SSOP and 28 pin PLCC package, top view.
PBL 386 40/2
Symbol
PTG
RRLY
HP
NC
RINGX
BGND
TIPX
VBAT
VBAT2
PSG
NC
LP
DT
DR
RINGX
VBAT2
BGND
RRLY
VBAT
TIPX
PSG
PTG
DR
HP
DT
LP
10
11
12
1
2
3
4
5
6
7
8
9
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
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 AGND.
An optional second (2) Battery Voltage connects to this pin.
Programmable Saturation Guard. The resistive part of the DC Feed characteristic is programmed by a
resistor connected from this pin to VBAT.
No internal Connection
Connection for Low Pass filter capacitor, C
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.
24-pin SSOP
24-pin SOIC
and
24
23
22
21
20
19
18
17
16
15
14
13
RSN
REF
DET
C1
C2
VTX
AGND
PLC
POV
PLD
VCC
C3
VBAT2
RINGX
BGND
VBAT
PSG
TIPX
NC
LP
HP
10
11
5
6
7
8
9
. Other end of C
. Other end of C
28-pin PLCC
LP
HP
connects to VBAT.
connects to TIPX.
25
24
23
22
21
20
19
NC
REF
PLC
POV
PLD
VCC
NC