PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 61

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

Preliminary
3.7
There are two different metering methods:
• Metering by sinusoidal bursts with either 12 or 16 kHz or
• Polarity reversal of Tip and Ring.
3.7.1
To satisfy worldwide application requirements, SLICOFI-2/-2S
metering injection of either 12 or 16 kHz signals with programmable amplitudes.
SLICOFI-2/-2S also has an integrated adaptive TTX notch filter and can switch the TTX
signal to the line in a smooth way. When switching the signal to the line, the switching
noise is less than 1 mV.
within SLICOFI-2/-2S.
Figure 29
The integrated, adaptive TTX notch filter guarantees an attenuation of > 40 dB. No
external components for filtering TTX bursts are required.
1)
Data Sheet
Metering is not available with SLICOFI-2S2
Metering
Metering by 12/16 kHz Sinusoidal Bursts
Teletax Injection and Metering
Z
Z
L
L
/2
/2
SLIC-E/-E2
SLIC-S
SLIC-P
Figure 29
shows TTX bursts at certain points of the signal flow
SLICOFI-2/-2S
y
+
-
61
D / A
A/D
D/A
Adaptive
Filter
TTX
+
x1
Gen.
TTX
Functional Description
1)
Transmit Path
Filter
Receive Path
offers integrated
IM
+
ezm14027.emf
2000-07-14
DuSLIC