CHA3512 United Monolithic Semiconductors, CHA3512 Datasheet
CHA3512
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CHA3512 Summary of contents
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... Low Noise Digital Variable Amplifier GaAs Monolithic Microwave IC Description The CHA3512 is composed by a Single Pole Double Through (SPDT) switch followed by a one step digital attenuator and a double stage travelling wave amplifier designed for defense applications. The backside of the chip is both RF and DC grounded. This helps to simplify the assembly process ...
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... Control voltage for Attenuator bit & SPDT switch (1) These values are representative for on-wafer measurements that are made without bonding wires at the RF ports. Ref. DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier ...
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... The attenuator state is controlled by 2 voltages. The SPDT switch is controlled by 2 voltages. Voltage CONTROL Theoretical attenuation state (dB référence Isolation Ref. : DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 Parameter Switch control PAD 20A 20B E (V) (V) (V) ...
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... CHA3512 Typical on wafer Measurements @ 25° C Bias conditions 4.5V, Vg tuned for Id = 210mA Linear Gain versus attenuator states Ref. DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier 0dB state 20dB state Linear Gain with SPDT switch OFF ...
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... Digital Variable Amplifier Saturated output power@nominal state Switch OFF dB(S11) versus frequency for all states Ref. : DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 Attenuator accuracy versus frequency dB(S22) versus frequency for all states ...
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... Typical test fixture Measurements @ 25° C Bias conditions 4.5V, Vg tuned for Id = 210mA Linear Gain versus attenuation states Input Return Loss versus attenuation states Ref. DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier ...
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... Digital Variable Amplifier Output Return Loss versus attenuation states Ref. : DSCHA3512-8144 - 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 CHA3512 ...
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... Ref. DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 6-18GHz Digital Variable Amplifier -20.7 161.9 -62.1 112.2 -2.7 69.1 -66.5 0.3 94.1 -68.7 10.0 50.3 -64.9 13.8 -2.9 -83.1 140.3 15.6 -54.8 -87.8 16.3 -91.9 -73.1 116.8 17.1 -127.4 -67.2 17.6 -161.5 -63.8 18.0 165.7 -61.5 18.2 133.9 -60.0 18.3 103.0 -57.6 18.3 72.7 -56.5 18.2 43.1 -55.2 18.0 14.2 -54.0 -115.4 17.8 -13.9 -53.6 -142.5 17 ...
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... Ref. : DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 Decoupling Comment Not required 20dB attenuator control 120pF / 10nF 120pF / 10nF Not required Not required Not required ...
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... 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. DSCHA3512-8144 - 23 May 08 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0 Fax : +33 (0 ...