September 1991

7

Philips Semiconductors

Product specification

UHF power transistor

BLV99/SL

Fig.8 Component layout for 900 MHz class-B test circuit.

The components are mounted on one side of a copper clad PTFE fibre-glass board; the other side is unetched

and serves as a ground plane. Earth connections from the component side to the ground plane are made by

fixing screws, hollow rivets and copper straps under the emitters.

handbook, full pagewidth

170 mm

R1

L3

L2

C2

L1

L4

L5

L8

L6

C10

C4

L7

R2

C5

C6

L9

C3

C1

C8

C9

C7

70 mm

MDA560

+VCC

rivets

M2

M3