CHA3514 United Monolithic Semiconductors, CHA3514 Datasheet

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CHA3514

Manufacturer Part Number
CHA3514
Description
6-18ghz 4 Bit Digital Variable Amplifier
Manufacturer
United Monolithic Semiconductors
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
CHA3514-99F
Manufacturer:
UMS
Quantity:
1 400
Part Number:
CHA3514-99F
Manufacturer:
UMS
Quantity:
20 000
Description
The CHA3514 is composed by a two stage
travelling wave amplifier followed by a four
steps digital attenuator. It is designed for
defense applications. The backside of the
chip is both RF and DC grounded. This helps
to simplify the assembly process.
The circuit is manufactured with a pHEMT
process, 0.25µm gate length, via holes
through the substrate, air bridges and
electron beam gate lithography.
It is available in chip form.
Main Features
■ Performances: 6-18GHz
■ 19dBm saturated output power
■ 13 dB gain
■ 4bit attenuator for 39.5dB dynamic range
■ DC power consumption, 190mA @ 4.5V
■ Chip size:
Main Characteristics
Tamb. = 25° C
ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!
Symbol
ATT dyn
Ref. DSCHA3514-8144 - 23 May 08
Psat
Fop
G
6-18GHz 4 bit Digital Variable Amplifier
Saturated Output power @ Attenuator state 0dB
5.54 x 2.30 x 0.1mm
Small signal gain @ Attenuator state 0dB
Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France
Operating frequency range
Attenuator range with 4bit
Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
GaAs Monolithic Microwave IC
United Monolithic Semiconductors S.A.S.
Parameter
1/10
Typical on wafer Measurements
Gain versus attenuation states
Specifications subject to change without notice
Min
6
Typ
39.5
13
19
RoHS COMPLIANT
Max
CHA3514
18
Unit
dBm
GHz
dB
dB

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CHA3514 Summary of contents

Page 1

... Digital Variable Amplifier GaAs Monolithic Microwave IC Description The CHA3514 is composed by a two stage travelling wave amplifier followed by a four steps digital attenuator designed for defense applications. The backside of the chip is both RF and DC grounded. This helps to simplify the assembly process. ...

Page 2

... Vc Control voltage for Attenuator bits (1) These values are representative for on-wafer measurements that are made without bonding wires at the RF ports. Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier Parameter ...

Page 3

... Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 Parameter Voltage CONTROL PAD 10B 5A 5B 2.5A (V) (V) (V) ( ...

Page 4

... Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier dB(S21) P(S21) (° ) dB(S12) -44.8 -114.9 -69.9 -24.1 -166.4 -69.2 -6.6 156.9 -67.0 2.5 94.4 -61.4 8.3 37.6 -69.4 11.0 -17.7 -86.1 12.4 -65.1 -78.4 13.3 -107.0 -72.8 13.9 -145.1 -70.0 14.3 178.9 -68.7 14.6 144.5 -66.8 14.9 111.4 -64.9 15.1 79.3 -67.2 15.2 47.9 -62.7 15.3 16.9 -59.7 15.4 -13.7 -57.5 15.5 -44.0 -55.6 15.5 -73.9 -54.7 15.5 -103.8 -53.2 15.5 -133.5 -54.7 15.5 -163.1 -56.0 15.5 167.2 -56.4 15.5 137.5 -59.8 15.4 107.7 -76.5 15 ...

Page 5

... Typical on wafer Measurements @ 25° C Bias conditions 4.5V, Vg tuned for Id = 190mA Linear Gain versus attenuator states Attenuator bit values vs frequency for main states Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 5/10 Specifications subject to change without notice CHA3514 Bit 2 ...

Page 6

... CHA3514 Saturated output power @ nominal state dB(S11) versus frequency for all states Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier 6/10 Specifications subject to change without notice ...

Page 7

... Digital Variable Amplifier dB(S22) versus frequency for all states Noise Figure vs frequency @ nominal state Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 7/10 Specifications subject to change without notice CHA3514 ...

Page 8

... Linear Gain versus attenuation states & temperature Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier Frequency GHz - 40° C 25° C 8/10 Specifications subject to change without notice ...

Page 9

... Vc 2.5A, 2.5B Vc 20A, 20B Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 120pF 10A 5A E 10B Drain Supply Decoupling Comment Not required 10dB pad control Not required ...

Page 10

... United Monolithic Semiconductors S.A.S. products are not authorised for use as critical components in life support devices or systems without express written approval from United Monolithic Semiconductors S.A.S. Ref. : DSCHA3514-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 ...

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