Ericsson PBL38582-1NS, PBL38582-1SOS, PBL38582-1SOT, PBL38582-2SOS, PBL38582-2SOT Datasheet

PBL 385 82

PBL 385 82

December 1999

PBL 38582

Telephone Line interface circuit for

DECT, DAM, CT

Unisolated or Isolated

Description

PBL 38582 is a monolithic bipolar integrated circuit for use as telephone line interface in
unisolated or isolated DECT and other cordless telephone residential base stations and
in analog / digital answering machines or as second line in an unisolated DECT telephone
base station.

Transmit and receive gains are set by external components. On / Off switchable gain,
related to line, regulation for different current feeds can be set by external resistors.
Typical current feeds as 48 V, 2 • 200 ohm, 48 V 2 • 400 ohm and 60 V 2 • 600 ohm can
be handled. Application dependent parameters such as line balance, impedance to the
line and frequency response are set by external components. Parameters are set

independently which results in an easy adoption for various market needs.

Key Features

• Minimum number of inexpensive
external components, 5 capacitors
and 4 resistors.

• Current range
5 - 130 mA(DIL),
5 - 100 mA(20-pin SO)
5 - 70 mA(16-pin SO) 385 82/2

• Operation voltage range
down to 2 V.

• Short start-up time.

PBL 38582

16-pin plastic SO

PBL 38582

RECEIVE

TRANSMIT

18

17

2

Limiter

6

3

Figure 1. Functional diagram. DIP package.

1

Fast start - up

Reference

15

2

DC
supply

+

4

5,

14,16

1

Telephone
line

PBL38582

20-pin plastic SO

18-pin plastic DIP

1

PBL 385 82

Maximum Ratings

Parameter Symbol Min Max Unit

Line voltage, tp = 2 s V
Line current, continuous DIP I
Line current, continuous SO-20 package I
Line current, continuous SO-16 package I
Operating temperature range T
Storage temperature range T
No input should be set on higher level than pin 15.(+C)

R = 0-4kΩ

L

0 ohm when artificial
line is used

R

feed

+

E = 48.5V

5H+5H

= 400Ω+400Ω

ARTIFICIAL

C

600Ω

LINE

+

V

2

V

1

I

L

+ LINE

PBL 38582

V

L

with external
components

See fig. 4

L

L

L

PBL 38582/2 0 70 mA

L

Amb

Stg

Ω

310

Ω

350

Transmitter

V

3

input

V

018V
0 130 mA
0 100 mA

-40 +70 °C

-55 +125 °C

Receiver
output

4

C = 1µF when artificial line is used
470µF when no artificial line

R = 0 - 4 k

L

5H+5H

R

feed

+

E = 50.0V

= 400Ω+400Ω

Receiver
output

18

17

Transmitter
input

1µF

V

2

V

1

Uz= 15-16V

Ω

+

600Ω

PBL 38582

Limiter

6

R13

R14

- LINE

Figure 2. Test set up without
rectifier bridge

I

L

+ LINE

V

L

PBL 38582

with external

components

See fig. 4

- LINE

310

Ω

350

Ω

Transmitter

V

3

input

Receiver

V

output

4

.

Figure 3. Test set up with rectifier
bridge

.

1

Fast start - up

Reference

3

2

C3

R6

15

C4

R1

R2

DC
supply

+

4

14,16

5,

R3

C1

+Line

Figure 4. Circuit with external
components for test set up.

R1 = 6.2 k R2 = 62 k
R3 = 909

C2

-Line

R14 = 10k
C1 = 68 µF C2 = 15 nF

C3 = 0.1µF C4 = 47 nF

Ω

R6 = 75

Ω

DIP package pinning.

2

PBL 385 82

Electrical Characteristics

At T

= + 25° C. No cable and no line rectifier unless otherwise specified.

Amb

I

= 100 mA is not valid for 16-pin SO package.

L

Parameter Ref.fig. Conditions Min Typ Max Unit

Line voltage, VL 2 IL = 15 mA 3.3 3.7 4.1 V

2I
Transmitting gain 20 •10 log (V2 / V3); 1 kHz 24 25 26 dB
Transmitting frequency 2 200 Hz to 3.4 kHz -1 1 dB

response
Transmitter dynamic output 2 200 Hz - 3.4 kHz 1.5 V

Transmitter maximum output 2 200 Hz - 3.4 kHz 3 V

Transmitter output noise 2 Psof-weighting, Rel 1 V
Transmitter input impedance 2 1 kHz 13.5 17 20.5 kohm

pin 3
Receiving gain 20 • 10 log (V

Without gain regulation 2 R
Receiving gain 20 • 10 log (V
With gain regulation 2 R

2R

2R
Receiving range of regulation 2 1 kHz, RL = 0 to 900 ohm 3 5 7 dB
Receiving frequency response 2 200 Hz to 3.4 kHz -1 1 dB
Receiver output impedance 2 1 kHz, without 310Ω resistor 3 ohm
Receiver dynamic output 2 200 Hz - 3.4 kH 0.5 V

note 1 ≤ 2% distortion, IL = 20 - 100 mA
Receiver maximum output 3 Measured with line rectifier 0.9 V

Receiver output noise 2 A-weighting, Rel 1V

= 100 mA 11 13 15 V

L

≤ 2% distortion, IL = 20 - 100 mA

IL = 0 - 100 mA, V3 = 0 - 1 V

, RL = 0 -75 dB

rms

/ V1); 1 kHz

4

= 0 - xxx ohm, R11= 10k -18.5 -16.5 -14.5 dB

L

/ V1); 1 kHz, R11 not used

4

= 0 ohm, -18.5 -16.5 -14.5 dB

L

= 400 ohm -16 -14 -12 dB

L

= 900 ohm - 2.2 kohm -13.5 -11.5 -9.5 dB

L

200 Hz - 3.4 kHz,
IL = 0 - 100 mA, V1= 0 - 50 V

, with cable -85 dB

rms

0 - 5 km, Ø = 0.5 mm,
0 - 3 km, Ø = 0.3 mm

p

p

Psof

p

p

A

Notes:

1. The dynamic output can be nearly doubled if the 310Ω series resistor is omitted.

3