September 1991

6

Philips Semiconductors

Product specification

UHF power transistor

BLV99/SL

List of components (see test circuit)

Notes

1. American Technical Ceramics type 100A or capacitor of the same quality.

2. The striplines are on a double copper-clad printed circuit board, with PTFE fibre-glass dielectric (

ε

COMPONENT

DESCRIPTION

VALUE

DIMENSIONS

CATALOGUE NO.

C1, C3, C8, C9

film dielectric trimmer

1.4 to 5.5 pF

2222 809 09001

C2

multilayer ceramic chip capacitor

(note 1)

4.7 pF

C4, C6, C10

multilayer ceramic chip capacitor

220 pF

C5

63 V electrolytic capacitor

1

µF

C7

multilayer ceramic chip capacitor

(note 1)

2.2 pF

L1

stripline (note 2)

50

Ω

48 mm

× 2.4 mm

L2

7 turns enamelled 0.4 mm copper

wire

50 nH

int. dia. 2 mm;

leads 2

× 5 mm

L3, L7

grade 3B Ferroxcube wideband HF

choke

4312 020 36642

L4, L5

stripline (note 2)

35

Ω

14 mm

× 4 mm;

L6

6 turns enamelled 1 mm copper wire 120 nH

int. dia. 6 mm;

length 10 mm;

leads 2

× 5 mm

L8

stripline (note 2)

50

Ω

31 mm

× 2.4 mm

L9

stripline (note 2)

50

Ω

29 mm

× 2.4 mm

R1, R2

0.4 W metal film resistor

10

Ω, 5%

Fig.7 Class-B test circuit at f = 900 MHz.

handbook, full pagewidth

MDA559

T.U.T.

L1

L8

L9

L4

L2

L6

R1

L3

L5

C6

C5

C4

C2

C10

50

Ω

+VCC

C7

L7

R2

,,,,,,

,,,,,,

,,,,,,,

,,,,,,,

C1

50

Ω

C3

C9

C8