Features, Applications, Description – Philips BGY148A User Manual

Page 2: Pinning - sot421a, Quick reference data, Limiting values

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1998 May 13

2

Philips Semiconductors

Product specification

HF amplifier modules

BGY148A; BGY148B

FEATURES

Single 6 V nominal supply voltage

3 W output power

Easy control of output power by DC voltage

Silicon bipolar technology

Standby current less than 100

µ

A.

APPLICATIONS

Portable communication equipment operating in the
400 to 440 MHz and 430 to 488 MHz frequency ranges
respectively.

DESCRIPTION

The BGY148A and BGY148B are three-stage UHF
amplifier modules in a SOT421A package. Each module
consists of three NPN silicon planar transistor dies
mounted together with matching and bias circuit
components on a metallized ceramic substrate. The
modules produce an output power of 3 W into a load of
50

with an RF drive power of 10 mW.

PINNING - SOT421A

PIN

DESCRIPTION

1

RF input

2

V

C

3

V

S

4

RF output

Flange

ground

Fig.1 Simplified outline (SOT421A).

handbook, halfpage

MSA483

1

2

3

4

Top view

QUICK REFERENCE DATA

RF performance at T

mb

= 25

°

C.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

Note

1. In order to control the mounting-base temperature, proper heatsinking of the underside of the device is required.

It is therefore advisable that the device is mounted on a printed-circuit board with metallized through holes.

TYPE

MODE OF

OPERATION

f

(MHz)

V

S

(V)

P

L

(W)

G

p

(dB)

η

(%)

Z

S

; Z

L

(

)

BGY148A

CW

400 to 440

6

3

24.8

typ. 53

50

BGY148B

CW

430 to 488

6

3

24.8

typ. 53

50

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

V

S

DC supply voltage

8.5

V

V

C

DC control voltage

4

V

P

D

input drive power

20

mW

P

L

load power

3.5

W

T

stg

storage temperature

40

+100

°

C

T

mb

operating mounting-base temperature; note1

30

+100

°

C

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