PBL386402QNTNT Infineon Technologies, PBL386402QNTNT Datasheet - Page 43

• Manufacturer Part Number: PBL386402QNTNT
• Manufacturer: Infineon Technologies

Specifications of PBL386402QNTNT

• Number Of Channels: 1
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Operating Temp Range: -40C to 85C
• Package Type: PLCC
• Loop Current Limit: 45mA
• Operating Temperature Classification: Industrial
• Pin Count: 28
• Mounting: Surface Mount
• Operating Supply Voltage (max): 5.25/-58V
• Lead Free Status / RoHS Status: Not Compliant

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
If the overhead voltage exceeds 3.2
by connecting pin PTG to AGND. Please note, that the 2-wire impedance,
4-wire to 4-wire gain has to be recalculated.
Figure 14
Data Sheet
Z
R
G
the overhead voltage exceeds 3.2
T
R
4 - 4
Figure 14
R
OV
Programmable Overhead Voltage (POV)
is connected between the POV pin and AGND, the overhead voltage can be
7
6
5
4
3
2
0
1
0
Programmable Overhead Voltage (POV).
V
TRO
the corresponding
5
(signal headroom) are typical values for THD < 1% and the signal
10
G
15
2-4S
V
20
becomes -6.02 dB. Please note that:
Peak
25
on the two-wire side can be handled with the PTG
R
V
R
ov
V
TRO
30
V
OV
(Kohm)
Peak
V
Peak
Peak
for the decided
) is needed. The POV function is only needed if
35
, the
is maximum also for the two-wire side. Signal
43
V
.
V
TX
40
Peak
G
cannot handle more than 3.2
2-4S
45
in off-hook and 1.3
50
gain has to be changed to -6.02 dB
V
55
TRO
R
60
L
Figure
can be found.
= 600
65
14. The
Rev. 2.0, 2005-04-14
V
or Infinite
Peak
POV
PBL 38640/2
Battery Feed
on-hook.. If a
of f -hook
on- hook
FlexiSLIC
R
V
R
Peak
R
and the
OV
. So if
and