STLC3075(2005) 查看數據表（PDF） - STMicroelectronics

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STLC3075
(Rev.:2005)

INTEGRATED POTS INTERFACE FOR HOME ACCESS GATEWAY AND WLL

STMicroelectronics 

STLC3075

Figure 18. L/T Longitudinal to Transversal Conversion

L/T = 20Log|Vcm/Vl|

300ohm 100 F

W&G GH1

TIP

TX

100 F

Impedance matching

better than 0.1%

100mA

DC max

Zin = 100K

200 to 6kHz

STLC3075

Vl

application

circuit

Vcm

100 F

RING

RX

300ohm 100 F

Figure 19. T/L Transversal to Longitudinal Conversion

T/L = 20Log|Vrx/Vcm|

600ohm

300ohm 100 F

Vcm

Impedance matching

better than 0.1%

W&G GH1

100 F

100mA

DC max

Zin = 100K

200 to 6kHz

100 F

300ohm 100 F

TIP

TX

STLC3075

application

circuit

RING

RX

Vrx

Figure 20. VTTX Metering Pulse level on line

Vlttx

200ohm

TIP

TX

STLC3075

application

circuit

RING

RX

CKTTX

fttx (12 or 16kHz)

21/26

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