STLC3065Q Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

fabricante

STLC3065Q

WLL SUBSCRIBER LINE INTERFACE CIRCUIT

STMicroelectronics 

STLC3065

Figure 1. Dual Port Concept.

BGND

Tip

Line

Driver

Ring

R1

R1

Sw1T

Sw1R

Sw2T

Sw2R

Sw4T

Sw3T

Sw4R

300µA

R1 = 1500 ohm

Sw6R

Sw5R

R1

R1

Is2

Is1

VBAT

TIP1

RING1

LINE1

TIP2

RING2

LINE2

Sw3R

300µA

Table 2. Dual Port control.

D0 D1 D2 P1 P2

0

0

X

0

0

0

0

X

1

1

0

0

X

0

1

0

0

X

1

0

X

1

X

0

0

X

1

X

1

1

X

1

X

0

1

X

1

X

1

0

1

0

X

0

1

1

0

X

1

1

1

0

X

0

1

1

0

X

1

0

OPER. MODE

Power Down

High Z feed.

Power Down/

High Z feed.

High Z feed.

Power Down

ACTIVE

ACTIVE

ACTIVE

ACTIVE

RING

RING

RING

RING

LINE 1 LINE 2

Open

Open

To P.S. via To P.S. via

Res.

Res.

Open To P.S. via

Res.

To P.S. via Open

Res.

300µA bias 300µA bias

To Buffer To Buffer

300µA bias To Buffer

To Buffer 300µA bias

300µA bias 300µA bias

To Buffer To Buffer

300µA bias To Buffer

To Buffer 300µA bias

DET

-

off-hook

line 1+2

off-hook

line 2

off-hook

line 1

-

off-hook

line 1+2

off-hook

line 2

off-hook

line 1

-

Ring-trip

line 1+2

Ring-trip

line 2

Ring-trip

line 1

DET1

-

off-hook

line 1

-

off-hook

line 1

-

-

-

-

-

-

-

-

DET2

-

off-hook

line 2

off-hook

line 2

-

-

-

-

-

-

-

-

-

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