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CHU3377 Datasheet(PDF) 4 Page - United Monolithic Semiconductors |
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CHU3377 Datasheet(HTML) 4 Page - United Monolithic Semiconductors |
4 / 6 page CHU3377 W-band Multiplier/MPA Ref.: DSCHU33777082 - 23 Mar 07 4/6 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 Typical Assembly and Bias Configuration L_in µ-strip line -V +V DC lines >= 47pF >= 47pF L_out µ-strip line L_in µ-strip line -V +V DC lines >= 47pF >= 47pF L_out µ-strip line This drawing shows an example of assembly and bias configuration. All the transistors are internally self biased. An external chip capacitor of at least 47pF is necessary for the positive and negative supply voltages. For the RF pads the equivalent wire bonding inductance (diameter=25µm) have to be according to the following recommendation. Pin name Equivalent inductance Wire length (1) IN L_in ≤ 0.3 nH ≤ 0.4 mm OUT L_out ≤ 0.15 nH (2) 0.2 mm (2) (1) This value is the total length including the necessary loop from pad to pad. (2) For longer wire length or higher inductance, an external compensation is required to match 50 Ω Ω Ω Ω between OUT Pin and 0.15nH wire inductance plan. (For example with a matching network on the substrate) Chip backside must be RF grounded. |
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