STLC3055N_09 STMICROELECTRONICS [STMicroelectronics], STLC3055N_09 Datasheet - Page 28

• Manufacturer Part Number: STLC3055N_09
• Description: WLL and ISDN-TA subscriber line interface circuit
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
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Figure 16. T/L transversal to longitudinal conversion T/L = 20Log|Vrx/Vcm|
Figure 17. VTTX metering pulse level on line
Figure 18. V2Wp and W4Wp: idle channel psophometric noise at line and TX.
600ohm
psophometric
filtered
V2Wp = 20Log|Vl/0.774l|; V4Wp = 20Log|Vtx/0.774l|
Vl
Vcm
300ohm
300ohm
600ohm
Vlttx
Impedance matching
better than 0.1%
100μF
100μF
Zin = 100K
200 to 6kHz
W&G GH1
100mA
DC max
200ohm
100μF
100μF
Zin = 100K
200 to 6kHz
100mA
DC max
W&G GH1
100μF
100μF
TIP
RING
STLC3055N
application
circuit
CKTTX
TIP
RING
STLC3055N
application
fttx (12 or 16kHz)
circuit
RX
TX
TIP
RING
RX
STLC3055N
TX
application
circuit
psophometric
RX
TX
filtered
Vtx
STLC3055N
Vrx