PBL3766 Просмотр технического описания (PDF) - Ericsson

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Компоненты Описание

производитель

PBL3766

Subscriber Line Interface Circuit

Ericsson  

PBL 3766

TIP

+

ZL

ZTR

VTR

+

EL

-

-

RING

TIPX 27/21

RF

RHP

HPT

2

20/15

CHP

21/16

HPR

RHP

2

RF

RINGX 28/22

+

1

-

+

1

-

IL

19/14 VTX

IL

ZT

+

VTX

-

Figure 8. Simplified ac transmission circuit.

PBL 3766

ZRX

16/12 RSN

I L /1000

+

VRX

-

RTX

VTX

19/14

PBL

3766

ZT

ZB

Z RX

16/12

RSN

RFB

-

+

VT

Combination

CODEC/Filter

VRX

Figure 9. Hybrid function.

TIPX 27/21

VLo I Lo

1

1

VLo I Lo

RINGX 28/22

I Lo

R

VLo + VBat /2

+

RLo = 20 kohms

R

1

-

VLo

ILo /1000

VBat /2

I Lo

PBL 3766

Figure 10. Longitudinal feedback loop.

4-11

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