MC145572FNR2 Freescale Semiconductor, MC145572FNR2 Datasheet - Page 225
MC145572FNR2
Manufacturer Part Number
MC145572FNR2
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC145572FNR2.pdf
(264 pages)
Specifications of MC145572FNR2
Number Of Line Interfaces
1
Control Interface
HDLC
Package Type
PLCC
Lead Free Status / Rohs Status
Not Compliant
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MOTOROLA
NOTES:
Component
1. Pulse transformer, 1:1.25 turns ratio. See Appendix B for sourcing and specification information. Dielectric isolation must
2. Pulse transformers are available from several manufacturers.
3. Diodes D1, D2, D3, and D4 can be MMBD7000 LT1. It is not required that D3, D4 be zener diodes.
4. 22 , 5% resistors can be connected at RxN and RxP for additional surge protection, if desired.
R1, R2
R3, R4
D1, D2
D3, D4
accept highest power cross voltage and highest lightning surge test voltage to be applied to Tip and Ring.
C1
C2
D5
T1
Table E–5. 2B1Q Line Interface Component Values
0.012 F, 16 V, 10%, ceramic NPO, polystyrene, or
polypropylene capacitor. See Appendix E for how
to calculate this value.
1.0 F, 200 V, 10%, low distortion capacitor
35 , 1%, metal film or other high quality low
distortion resistor. See Appendix E for how to
calculate this value.
Not Used
MMBD7000 LT1
IN5232B 5.6 V Zener
Transient voltage suppressor, TECCOR
P1300EA70
Pulse Engineering PE68628
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
(Figure E–5a)
Description
MC145572
0.012 F, 16 V, 10%, ceramic NPO, ceramic COG,
polystyrene, or polypropylene capacitor. See
Appendix E for how to calculate this value.
1.0 F, 200 V, 10%, low distortion capacitor
32 , 1%, metal film or other high quality low
distortion resistor. See Appendix E for how to
calculate this value.
7.5 , positive temperature coefficient resistor,
polyswitch TR600–150.
MMBD7000 LT1
IN5232B 5.6 V Zener
Transient voltage suppressor, TECCOR
P1300EA70
Pulse Engineering PE68628
(Figure E–5b)
Description
E–5
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