PEF42642TV21XT Lantiq, PEF42642TV21XT Datasheet - Page 7

• Manufacturer Part Number: PEF42642TV21XT
• Manufacturer: Lantiq

Specifications of PEF42642TV21XT

• Polarity Reversal: Yes
• On-chip Ring Relay Driver: No
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Pin Count: 22
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

1
Infineon Technologies’ high voltage ringing Subscriber Line Interface Circuit SLIC-S (PEF 4264) Version 2.1
(V2.1) is the latest out of the well-known and broadly used SLIC-S family. It has been designed not only to cover
all previous SLIC-S applications, but also to extend the supply voltage range to 120 V to enable balanced
sinusoidal ring signals up to 65 V
As SLIC-S V2.1 is pin compatible with its previous versions, it can be operated with all codec devices of the
DuSLIC
switches allow the choice between two negative battery voltages for voice transmission, whereas in the ring mode
an additional positive supply voltage is used.
To minimize the average system power dissipation, a power-down mode can be utilized; the transmission part is
switched off completely and off-hook supervision is provided by activating a simple line current sensor with
negligible power consumption.
SLIC-S V2.1 is available in a single (PEF 4264) channel version in either PG-DSO-20-24 or PG-VQFN-48-15
power packages, or in a dual channel version (PEF 4364), packaged in PG-DSO-36-15.
1.1
Compared with the previous version of SLIC-S (PEB 4264 V1.2), the new version V2.1 is characterized by the
following changes:
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•
•
•
•
•
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Preliminary Data Sheet
Increased supply voltage range VHR - VBATH of up to 120 V
Sinusoidal ring voltage up to 65 V
High impedance DC inputs
Fully differential receive path - VCMS pin not required
Fast current limitation for improved overvoltage behaviour
Electrical Parameters
– Supply currents
– Open loop resistances RTG, RRB
– Power down open loop line voltage
– Off-hook output current on IT
– IT output current reverse polarity (limitation with VDD = 3.3 V)
Application circuit:
– 100 nF / 50 V capacitor at CEXT
– Per channel series diode in VBATL supply mandatory (no shared diodes)
®
or VINETIC
General Description
Version 2.1: Summary of Changes
®
chip sets. The highly flexible device offers 3.3 V and 5 V compatibility. Integrated supply
(Chapter
rms
.
4.5):
rms
7
PEF 4264 / PEF 4364
Revision 2.0, 2006-10-10
SLIC-S / TSLIC-S
General Description