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STLC3075 Fiches technique(PDF) 22 Page - STMicroelectronics

No de pièce STLC3075
Description  INTEGRATED POTS INTERFACE FOR HOME ACCESS GATEWAY AND WLL
PDF  26 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLC3075 Fiches technique(HTML) 22 Page - STMicroelectronics

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Figure 21. V2Wp and W4Wp: Idle channel psophometric noise at line and TX.
V2Wp = 20Log|Vl/0.774l|; V4Wp = 20Log|Vtx/0.774l|
6
APPENDIX B
6.1 STLC3075 Overvoltage Protection
Figure 22. Simplified configuration for indoor overvoltage protection
Figure 23. Standard overvoltage protection configuration for K20 compliance
TIP
RING
RX
TX
STLC3075
application
circuit
W&G GH1
Vl
psophometric
filtered
100 F
100 F
100mA
DC max
Zin = 100K
200 to 6kHz
600ohm
Vtx
psophometric
filtered
TIP
RING
BGND
VBAT
RP1
RP2
RP1
RP2
STLC3075
TIP
RING
RP1 = 30ohm:
RP2 =Fuse or PTC > 18ohm
STPR120A
STPR120A
TIP
BGND
VBAT
RP1
RP2
RP1 = 30ohm:
RP2 =Fuse or PTC > 18ohm
STLC3075
TIP
RING
RP1
RP2
RING
LCP1521



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