PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 80

• Manufacturer Part Number: PEB3265
• Description: (PEB326x / PEB426x) Dual Channel Slicofi-2 / Slic Duslic
• Manufacturer: Infineon Technologies Corporation

Preliminary
Power Down Resistive (PDRH for SLIC-E/-E2/-S/-S2 and PDRR for SLIC-P)
The Power Down Resistive mode is the standard mode for none-active lines. Off-hook
is detected by a current value fed to the DSP, compared with a programmable threshold,
and filtered by a data upstream persistence checker. The power management SLIC-P
can be switched to a Power Down Resistive High or a Power Down Resistive Ring mode.
HIRT
The line drivers in the SLIC-E/-E2/-P are shut down and no resistors are switched to the
line. Off-hook detection is not possible. In HIRT mode the SLICOFI-2 is able to measure
the input offset of the current sensors.
Power Down High Impedance (PDH)
In Power Down High Impedance mode, the SLIC is totally powered down. No off-hook
sensing can be performed. This mode can be used for emergency shutdown of a line.
Active High (ACTH)
A regular call can be performed, voice and metering pulses can be transferred via the
telephone line and the DC loop is operational in the Active High mode.
Active Low (ACTL)
The Active Low mode is similar to the Active High mode. The only difference is that the
SLIC uses a lower battery voltage,
Active Ring (ACTR)
The Active Ring mode is different for the SLIC-E/-E2 and the SLIC-P. The SLIC-E/-E2
uses the additional positive voltage
to the negative battery voltage
Ringing
If the SLICOFI-2x is switched to Ringing mode, the SLIC is switched to ACTR mode.
With the SLIC-P connected to the SLICOFI-2, the Ring on Ring (ROR) mode allows
unbalanced internal ringing on the Ring wire. The Tip wire is set to battery ground. The
Ring signal will be superimposed by
The Ring on Tip (ROT) mode is the equivalent to the ROR mode.
Active with HIT
This is a testing mode where the Tip wire is set to a high impedance mode. It is used for
special line testing. It is only available in an active mode of the SLICOFI-2x to enable all
necessary test features.
Data Sheet
V
BATR
V
V
BATL
V
HR
.
BATR
for extended feeding and the SLIC-P will switch
(bit ACTL = 1).
80
/2.
Operational Description
2000-07-14
DuSLIC