PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 118

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

Preliminary
Table 33
LM-AC
0
1
:
6
7
The integration function accumulates and sums up the levelmeter values over a set time
period. The time period from 1*16 ms to 16*16 ms is set by the bits LM-ITIME[3:0] in
register LMCR3. The integration function can be turned on and off by bit LM-EN in
register LMCR1.
The number of samples N
N
The level can be calculated by:
The result registers get frequently updated after an integration period, if bit LM-EN in
register LMCR1 = 1. If the bit LM-ONCE in register LMCR1 is set to 1 then the integration
is executed only once. To start again bit LM-EN has to be set from 0 to 1.
The levelmeter result can be transferred to the PCM/IOM-2 interface, depending on bit
LM2PCM in register LMCR1.
Measurement of currents via ITAC
In order to do current measurements via pin ITAC, all feedback loops (IM-filters and TH-
filters) should be disabled. To simplify the formulas, the programmable receive and
transmit gain is disabled.
This is done by setting the following bits:
Register BCR4:
Register TSTR4:
Register LMCR1: TEST-EN = 1
Data Sheet
U dBm0
Samples
= LM-ITIME * 8000
=
20
K
K
1
½
:
1/64
1/128
INTAC
log
INTAC
æ
è
AR-DIS = 1, AX-DIS = 1, TH-DIS = 1,
IM-DIS = 1, FRR-DIS = 1, FRX-DIS = 1
OPIM-AN = 1, OPIM-4M = 1
LM Result
Setting Table
Samples
------------------------------------------------------------ -
2
for the integrator is defined by:
K INT
N Samples
118
ö
+
3.14
Operational Description
2000-07-14
DuSLIC