PEF 82912 F V1.4 Infineon Technologies, PEF 82912 F V1.4 Datasheet - Page 61

• Manufacturer Part Number: PEF 82912 F V1.4
• Description: IC MODULAR ISDN NT INTELL TQFP64
• Manufacturer: Infineon Technologies
• Series: Q-SMINT®r

Specifications of PEF 82912 F V1.4

• Function: Second Generation Modular
• Interface: ISDN
• Mounting Type: Surface Mount
• Package / Case: 64-LFTQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Supply: -
• Power (watts): -
• Operating Temperature: -
• Number Of Circuits: -
• Other names: PEF82912FV1.4XT; PEF82912FV14XP; SP000007558; SP000007559

Resistors of the External Hybrid R3, R4 and R
R3 = 1.3 k
R4 = 1.0 k
R
Resistors on the Line Side R
Optional use of up to 2x20
requires compensation resistors R
R
R
27 nF Capacitor C
To achieve optimum performance the 27 nF capacitor should be MKT. A Ceramic
capacitor is not recommended.
Tolerances
• Rs: 1%
• C=27 nF: 10-20%
• L=14.5 mH: 10%
3.3.3
In order to comply to the physical requirements of ITU recommendation I.430 and
considering the national requirements concerning overvoltage protection and
electromagnetic compatibility (EMC), the S-transceiver needs some additional circuitry.
S-Transformer Parameters
The following
Data Sheet
T
B
OUT
, R
= 9.5
L
: see
: see
2R
2R
S-Transceiver
Table 19
Table 14
Table 15
PTC
PTC
+ 8R
+ 4(2R
COMP
lists parameters of a typical S-transformer:
COMP
= 40
PTC
+ 2R
resistors (2xR
COMP
/ Chip Side R
T
+ R
depending on R
OUT
53
PTC
+ R
T
T
) on the line side of the transformer
B
)
R
L
PTC
= 135
:
Operational Description
PEF 80912/80913
2001-03-29
(1)
(2)