PBL38630/2QNA Infineon Technologies, PBL38630/2QNA Datasheet - Page 39

• Manufacturer Part Number: PBL38630/2QNA
• Description: IC LINE INTERFACE SLIC PLCC-28
• Manufacturer: Infineon Technologies
• Series: FlexiSLIC™r

Specifications of PBL38630/2QNA

• Function: Subscriber Line Interface Concept (SLIC)
• Number Of Circuits: 1
• Voltage - Supply: 5V
• Current - Supply: 2.8mA
• Power (watts): 730mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Includes: Current Feeding, Ground Key Detector, Ring Relay Driver
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: PBL38630/2QNAT; SP000017952

D
E
F
G
H
J
6.2
With the POV function the overhead voltage can be increased. If the POV pin is left open
the overhead voltage is internally set to 3.2
resistor
set to higher values, typical values can be seen in
corresponding
frequency 1000 Hz.
Observe that the four-wire output terminal
the two- to four-wire gain is 0 dB, 3.2
levels between 3.2 and 6.4
shorted so that the gain
•
•
•
has to be recalculated if the PTG is shorted.
Please note that the maximum signal current at the two-wire side can not be higher than
9 mA.
How to use POV:
1. Decide what overhead voltage (
2. In
3. If the overhead voltage exceeds 3.2
Data Sheet
Z
R
G
the overhead voltage exceeds 3.2
6.02 dB by connecting pin PTG to AGND. Please note, that the 2-wire impedance,
R
T
R
R
4 - 4
Figure 13
and the 4-wire to 4-wire gain has to be recalculated.
R
OV
R
I
Apparent battery
R
V
Virtual battery
L
Feed
Programmable Overhead Voltage (POV)
Feed
TROpen
is connected between the POV pin and AGND, the overhead voltage can be
= 6 mA
V
= 2x25
=
TRO
the corresponding
= |
R
-------------------------------
SG
(signal headroom) are typical values for THD < 1% and the signal
V
BAT
200
+
G
V
2
| -
2-4S
BatVirt
10
V
V
V
Bat
OH
becomes -6.02 dB. Please note that:
4
Peak
+
(@
(@
2R
on the two-wire side can be handled with the PTG
V
I
R
I
F
L
L
TRO
V
OV
= 4 mA) = |
V
= 0) = |
Peak
Peak
for the decided
) is needed. The POV function is only needed if
V
is maximum also for the two-wire side. Signal
39
V
.
Peak
V
TX
Peak
V
cannot handle more than 3.2
, the
BAT
V
in off-hook and 1.3
| -
BAT
G
V
| -
OHvirt
2-4S
V
V
TRO
OHvirt
gain has to be changed to -
- (
Figure
can be found.
R
Feed
x 4x10
13. The
Rev. 2.0, 2005-04-14
V
Peak
PBL 38630/2
Battery Feed
-3
on-hook.. If a
)
FlexiSLIC
V
Peak
R
OV
. So if
and