pbl385822sot ETC-unknow, pbl385822sot Datasheet

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pbl385822sot

Manufacturer Part Number
pbl385822sot
Description
Telephone Line Interface Circuit Dect Unisolated Isolated
Manufacturer
ETC-unknow
Datasheet
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.
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.
Figure 1. Functional diagram. DIP package.
RECEIVE
TRANSMIT
Transmit and receive gains are set by external components. On / Off switchable gain,
1 8
1 7
2
PBL 38582
6
Limiter
3
Telephone Line interface circuit for
1
2
Reference
1 5
Fast start - up
5,
14,16
supply
DC
4
+
1
Unisolated or Isolated
Telephone
line
DECT, DAM, CT
Key Features
• Minimum number of inexpensive
• Current range
• Operation voltage range
• Short start-up time.
external components, 5 capacitors
and 4 resistors.
5 - 130 mA(DIL),
5 - 100 mA(20-pin SO)
5 - 70 mA(16-pin SO) 385 82/2
down to 2 V.
PBL 38582
December 1999
16-pin plastic SO
20-pin plastic SO
18-pin plastic DIP
PBL 385 82
1

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pbl385822sot Summary of contents

Page 1

Telephone Line interface circuit for 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 ...

Page 2

PBL 385 82 Maximum Ratings Parameter Line voltage Line current, continuous DIP Line current, continuous SO-20 package Line current, continuous SO-16 package Operating temperature range Storage temperature range No input should be set on higher ...

Page 3

Electrical Characteristics cable and no line rectifier unless otherwise specified. Amb I = 100 mA is not valid for 16-pin SO package. L Parameter Ref.fig. Line voltage Transmitting gain ...

Page 4

PBL 385 ...

Page 5

Functional description Design procedure; ref. to fig.4. The design is made easier through that all settable parameters are returned to gro- und (-line), this feature differs it from bridge type solutions.To set the parameters in the following order will result ...

Page 6

PBL 385 Figure characteristics Transmitter amplifier The transmitter amplifier in PBL38582 consists of three stages. The first stage is an amplitude ...

Page 7

Battery feed R13 Regulation: 48V, 2 • 200 48V, 2 • 400 48V, 2 • 800 No regulation: Set for low gain All feedings Set for high gain 18k Set for high gain 22k What is balancing the side tone? ...

Page 8

PBL 385 82 Note that the signals at points a. and b. are 180 degrees off phase Zbal Note #1 R7 Zbal Note#2 The ac-signal at point c. is now 1/10 of the signal on ...

Page 9

Ordering Information Package Temp. Range Plastic DIP -40 to +70 C Plastic SO20 -40 to +70 C Plastic SO20 -40 to +70 C Plastic SO16 -40 to +70 C Plastic SO16 -40 to +70 C Information given in this data ...

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