PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 47

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

Preliminary
3.3.7
To avoid clipping AC speech signals as well as AC metering pulses, a voltage reserve
V
V
V
V
V
• Voltage reserve of the SLIC output buffers: this voltage drop depends on the output
• Voltage reserve for AC speech signals: max. signal amplitude (example 2 V)
• Voltage reserve for AC metering pulses: The TTX signal amplitude
Therefore a
of DC and speech and TTX) + 2 V (AC speech signals) + 4.24 V (TTX-signal)).
Figure 20
Data Sheet
RES
RES
BAT
BATL
RES
current through the Tip and Ring pins. For a standard output current of 25 mA, this
voltage reserve is a few volts (see
local specifications and varies from 0.1 Vrms to several Vrms at a load of 200
obtain
see
is the selected battery voltage, which can be depending on the mode either
(see
consists of:
= |
, (
Figure 99
V
V
V
HR
BAT
Figure
TTX
Necessary Voltage Reserve
V
–
| –
RES
TTX Voltage Reserve Schematic
V
= 2 Vrms at a load of 200
BATH
V
on
value of 10.24 V must be selected (= 4 V (SLIC drop for peak current
LIM
14) has to be provided.
Page
) for SLIC-S/-S2/-E/-E2 or
SLIC
370), 3 Vrms = 4.24 Vpeak are needed at the SLIC output.
Table 17
47
R
R
and
PRE
PRE
on
V
BATH
R
200
Page
PRE
,
= 50
V
95).
BATL
, –
V
= (
Functional Description
TTX
R
V
PRE
BATR
=
V
R
for SLIC-P.
TTX
PROT
ezm14032.wmf
depends on
2000-07-14
DuSLIC
+
V
R
BATH
STAB
. To
,
,