6-18GHz Digital Variable Amplifier

CHA3514

Ref. : DSCHA3514-8144 - 23 May 08

3/10

Specifications subject to change without notice

Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE

Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09

Absolute Maximum Ratings

Tamb. = 25°C (1)

Symbol

Parameter

Values

Unit

Vd

Maximum Drain bias voltage ( Pads B,D)

+5

V

Id

Drain bias current with Vd=4.5V

320

mA

Vg

Gate bias voltage (Pads A, E)

-2 to +0.4

V

Vc

Attenuator bits control voltage

-7 to +0.6

V

Pin

Maximum input power overdrive (2)

+20.0

dBm

Tch

Maximum channel temperature

+175

°C

Ta

Operating temperature range

-40 to +70

°C

Tstg

Storage temperature range

-55 to +125

°C

(1) Operation of this device above anyone of these parameters may cause permanent damage.

(2) Duration < 1s.

4bit VGA Control interface

The attenuator states are controlled by 8 voltages.

Voltage CONTROL PAD

state

Theoretical

attenuation

dB

10A

(V)

10B

(V)

5A

(V)

5B

(V)

2.5A

(V)

2.5B

(V)

20A

(V)

20B

(V)

0

0 référence

-5

0

-5

0

-5

0

-5

0

1

2.5

-5

0

-5

0

0

-5

-5

0

2

5

-5

0

0

-5

-5

0

-5

0

3

7.5

-5

0

0

-5

0

-5

-5

0

4

10

0

-5

-5

0

-5

0

-5

0

5

12.5

0

-5

-5

0

0

-5

-5

0

6

15

0

-5

0

-5

-5

0

-5

0

7

17.5

0

-5

0

-5

0

-5

-5

0

8

20

-5

0

-5

0

-5

0

0

-5

9

22.5

-5

0

-5

0

0

-5

0

-5

10

25

-5

0

0

-5

-5

0

0

-5

11

27.5

-5

0

0

-5

0

-5

0

-5

12

30

0

-5

-5

0

-5

0

0

-5

13

32.5

0

-5

-5

0

0

-5

0

-5

14

35

0

-5

0

-5

-5

0

0

-5

15

37.5

0

-5

0

-5

0

-5

0

-5