2SA1977 datasheet(2/7 Pages) NEC | PNP EPITAXIAL SILICON TRANSISTOR MICROWAVE AMPLIFIER

Part Name

Description

2SA1977

PNP EPITAXIAL SILICON TRANSISTOR MICROWAVE AMPLIFIER ( 7 Page)

NEC

2 page

2SA1977

SWITCHING CHARACTERISTICS

Vin = 1 V

TYP.

Turn-on Delay Time

ton (delay)

1.08

Rise Time

0.66

Turn off Delay Time

toff (delay)

0.32

Fall Time

0.78

SWITCHING TIME MEASUREMENT CIRCUIT

VCC ( – )

RC1

RC2

RL1

VOUT

RL2

VSS ( – )

Ω

Vin

Sampling

Oscilloscope

Vin

VOUT

20 ns

toff (delay)

ton (delay)

VEE ( + )

Vin = 1 V, VBB =

−0.5 V, RC1 = RC2

RL1

RL2

VEE

VCC

(

Ω)(Ω)(Ω)(Ω)(Ω)(V)

(V)

160

1 k

200

250

2.7 k

26.3

Parameter

Symbol

Unit

1 2 3 4 5 6 7

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