PEB 4364 T V1.2 Infineon Technologies, PEB 4364 T V1.2 Datasheet - Page 115

• Manufacturer Part Number: PEB 4364 T V1.2
• Description: IC SLIC VOICE ACCESS PDSO-36
• Manufacturer: Infineon Technologies
• Series: DuSLICr

Specifications of PEB 4364 T V1.2

• Function: Dual Channel Subscriber Line Interface Circuit (DuSLIC)
• Interface: IOM-2, PCM
• Number Of Circuits: 2
• Voltage - Supply: 3.3 V ~ 5 V
• Current - Supply: 105mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-PDSO
• Includes: DTMF Generator and Decoder, Line Echo Cancellation (LEC), Teletax (TTX) Generation, Universal Tone Detection (UTD)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PEB4364TV1.2XT; SP000007728

Example
•
•
Program Sequence
•
Parameter
Voltage slope of ramp
generator
Ring frequency
Ring generator delay
Ring offset voltage 1
Ring offset voltage 2
DC levelmeter current 50%
full scale
•
•
•
•
Preliminary Data Sheet
– Capacitance as object to be determined: C
– Resistor R
–
– Choose Ring Offset voltage 1: RO1 = 70 V (Start voltage on Tip/Ring where the
– Choose Ring Offset voltage 2: RO2 = –30 V (End voltage on Tip/Ring where the
– Choose slope of ramp while testing: dU/dt = 200 V/s
– Time from start to stop of the ramp from RO1 to RO2 is 100 V/200 V/s = 500 ms
– Time from start to zero cross is 70 V/200 V/s = 350 ms
– Choose Integration time: T
– Measure around zero cross
– T
– Check ring generator delay: T
– Expected current i = C
– Choose current for DC levelmeter current 50% full scale I
Assumptions:
Calculating parameter values:
Set the following parameter values:
Integration time T
Select the DC level meter by setting bits LM-SEL[3:0] in register LMCR2 to 0101
Execute the level meter only once by setting bit LM-ONCE in register LMCR1 to 1.
Apply Ring Offset voltage RO1 to Ring and Tip line by setting bits RNG-OFFSET[1:0]
in register LMCR3 to 01.
ramp should start; programmed by ring offset voltage RO1)
ramp should stop; programmed by ring offset voltage RO2)
Note: A current of 2 mA will result in LM
RING,DELAY
= R
Measure
Measure
is programmed to 345 ms
*C
Measure
I
in series to C
= 1/f
= 67.9 ms
RING
Measure
Symbol & Value
dU/dt = 200 V/s
f
T
RO1 = 70 V
RO2 = –30 V
I
RING
LM,DC
= 1/100 Hz = 10 ms
RING,DELAY
I
= 1/f
*dU/dt = 1.96 mA
= 100 Hz
RING,DELAY
Measure
from 345 ms to 355 ms
= 2 mA
RING
: R
= 345 ms
= 1/100 Hz = 10 ms
115
Measure
> 3* = 204 ms
Result
Measure
= 0.5 (half of the full scale value)
= 6930
= 9.8 µF
DuSLICOS
DC Control Parameter 3/4
DC Control Parameter 2/4
DC Control Parameter 2/4
DC Control Parameter 2/4
DC Control Parameter 2/4
DC Control Parameter 4/4
Operational Description
LM,DC
OK!
= 2 mA
DS3, 2003-07-11
DuSLIC