PBL38620/2SHA Infineon Technologies, PBL38620/2SHA Datasheet - Page 30

• Manufacturer Part Number: PBL38620/2SHA
• Description: IC LINE INTERFACE SLIC SSOP-24
• Manufacturer: Infineon Technologies
• Series: FlexiSLIC™r

Specifications of PBL38620/2SHA

• Function: Subscriber Line Interface Concept (SLIC)
• Number Of Circuits: 1
• Voltage - Supply: 5V
• Current - Supply: 2.8mA
• Power (watts): 290mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Includes: Current Feeding, Ground Key Detector, Ring Relay Driver
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Other names: PBL38620/2SHAXT; SP000007870

where:
V
V
E
I
R
G
Z
Z
Z
V
1) The SLIC two-wire to four-wire gain, G
5.2
To calculate
fuse resistor
From
Thus with
5.3
From
Data Sheet
Z
Z
G
L
L
RX
T
RSN
TX
TR
L
F
RX
2-4S
TR
T
2 4
–
=
=
Equation [1]
Equation [1]
=
---------------------------------- -
RSN
---------
V
RSN
V
Z
TR
TX
Two-Wire Impedance
Two-Wire to Four-Wire Gain
TR
Z
R
Z
G
, G
=
TR
F
T
Is the ground referenced version of the AC metallic voltage between the
TIPX and RINGX terminals.
Is the AC metallic voltage between TIP and RING.
Is the line open circuit AC metallic voltage.
Is the AC metallic current.
Is a fuse resistor.
Is the programmable SLIC two-wire to four-wire gain (transmit
direction)
Is the line impedance.
Controls four- to two-wire gain.
Determines the SLIC TIPX to RINGX impedance at voice frequencies.
Is the analog ground referenced receive signal.
Is the receive summing node current to metallic loop current gain.
G
, let
2 4S
RSN
, the impedance presented to the two-wire line by the SLIC including the
----------------------------------------------------
---------------------------------- -
2 4S
–
2-4S
–
RSN
and
and
V
= 200
,
RX
+
Z
Z
RSN
Z
T
2
T
G
1)
= 0.
Equation
Equation [2]
TR
R
.
2 4S
F
and
–
–
RSN
2
R
+
R
F
2
2-4S
F
R
known:
[2]:
, is user programmable between two fixed values. See
F
with
V
30
RX
= 0:
Rev. 2.0, 2005-04-13
PBL 38620/2
Transmission
FlexiSLIC
Table
5.
[4]
[5]
[6]