PBL3766QN Ver la hoja de datos (PDF) - Ericsson

Número de pieza

componentes Descripción

Fabricante

PBL3766QN

Subscriber Line Interface Circuit

Ericsson  

PBL 3766

Electrical Characteristics

0 °C < TAmb < 70 °C, VCC = +5 V ±5 %, VEE = -5 V ±5 %, VBat = -48 V, RSG = 0 ohm , RDC = 41.7 kohms, RD = ∞, ZL = 600 ohms,

C

HP

=

33

nF,

C

DC

=

1.5

µF

unless

otherwise

specified.

Parameter

Ref

Fig. Conditions

Min

Typ

Max

Unit

Two-wire port

Overload level, V

2 Z = 600 ohms, 1% THD, Note 1

3.1

V

TRO

L

Pk

Input impedance, Z

TRX

Note 2

Longitudinal impedance, ZLoT, ZLoR

f < 100 Hz

25

40

ohm/wire

Longitudinal current limit, ILoT, ILoR

active state, C2, C1 = 1, 0

20

mApk/wire

Longitudinal to metallic balance, BLM

IEEE standard 455-1985

0.2 kHz ≤ f ≤ 3 kHz

PBL 3766

53

58

dB

PBL 3766/6

48

58

dB

Longitudinal to metallic balance, BLME

3

B = 20 · log |ELo|

LME

|VTR|

0.05kHz ≤ f ≤ 3.4kHz

PBL 3766

53

58

dB

PBL 3766/6

48

58

dB

Longitudinal to four-wire balance, BLFE

3

BLFE = 20 · log

|ELo|

|VTX|

0.05kHz ≤ f ≤ 3.4kHz

PBL 3766

53

58

dB

PBL 3766/6

48

58

dB

Metallic to longitudinal balance, BMLE

4

BMLE = 20 · log

|ETR|

|VLo|

,

ERX

=

0

0.2kHz ≤ f ≤ 3.4kHz

PBL 3766

50

55

dB

PBL 3766/6

48

55

dB

Four-wire to longitudinal balance, B

FLE

4

|E |

B = 20 · log RX , E source removed

FLE

|V | TR

Lo

0.2kHz ≤ f ≤ 3.4kHz

40

55

dB

Figure 2. Overload level, VTRO, two-wire

port.

RL

1

<< R , R = 600 ohms,

ωC

LL

RT = 600 kohms, RRX = 300 kohms

C

V TRO

I Ldc

TIPX

27/21

VTX

19/14

PBL 3766

RINGX

28/22

RSN

16/12

Figure 3. Longitudinal to metallic (BLME)

and longitudinal to four-wire (BLFE)

balance.

1

ωC << 150 ohms, RLR = RLT = 300 ohms,

R = 600 kohms, R = 300 kohms

T

RX

E LO

C

TIPX

VTX

27/21

19/14

RLT

VTR PBL 3766

RLR

RINGX

28/22

RSN

16/12

RT

RRX

E RX

RT

V TX

RRX

4-3

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