CGY181 データシートの表示（PDF） - Siemens AG

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CGY181

GaAs MMIC

Siemens AG 

GaAs MMIC

CGY 181

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Functional block diagramm:

VG (1)

VD1 (7)

VTR (2)

Control

Circuit

Pin (8)

GND1 (6,9)

connected (shut off mode).

VD2 (11)

Short description of CGY181

operation:

GND2

(3, 4, 5, 10)

Pout (11)

A negative voltage between -4V to -6V

(stabilization not necessary) has to be

connected to the VG-pin, a positive

supply voltage has to be applied to the

VD-pins.

The VTR-pin has to switched to 0V

(GND) during transmit operation. The

MMIC CGY181 is self-biased, the

operating current is adjusted by the

internal control circuit.

In receive mode the VTR-pin is not

Pin #

1

2

3,4,5,10

6,9

7

8

11

12

VG

VTR

GND 2

GND 1

VD1

RFin

VD2,RFout

-

Configuration

Negative voltage at control circuit (-4V...-8V)

Control voltage for transmit mode (0V) or receive mode (open)

RF and DC ground of the 2nd stage

RF and DC ground of the 1st stage

Positive drain voltage of the 1st stage

RF input power

Positive drain voltage of the 2nd stage, RF output power

not connected

DC characteristics

Characteristics

Symbol Conditions

min typ max Unit

Drain current stage 1 IDSS1 VD=3V, VG=0V, VTR n.c. 0.6 0.9 1.2 A

stage 2 IDSS2

2.4 3.5 4.8 A

Drain current with

ID

VD=3V, VG=-4V, VTR=0V

1.0

A

active current control

Transconductance

gfs1

VD=3V, ID=350mA

0.28 0.32 -

S

(stage 1 and 2)

gfs2

VD=3V, ID=700mA

1.1 1.3 -

S

Pinch off voltage

Vp

VD=3V, ID<500µA

-3.8 -2.8 -1.8 V

(all stages)

Siemens Aktiengesellschaft

pg. 2/14

01.02.96

HL EH PD 21

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