CHE1260-QAG_15 Datasheet, PDF (12/14 Pages) United Monolithic Semiconductors – 10-27GHz Bidirectionnal Detector

CHE1260-QAG
Notes
10-27GHz Detector
100kΩ
Vref_R ^DC_R Vdet_R _100kΩ
RF_F__{_}i_in_n
R^RF^F_^_o^ou^ut^t
100kΩ
Vdet_I _{DC_I} Vref_I
100kΩ
Recommended external resistors assembly
100kΩ resistors in parallel with Vdet_I, Vref_I, Vdet_R and Vref_R pads are recommended
to provide the best behaviour in the whole operating temperature range.
Best accuracy is obtained when:
Vdetect_ I= Vref_R- Vdet_I
Vdetect_R= Vref_I- Vdet_R
As the voltage detection is the difference between Vref_X and Vdet_X (X= I or R), the
external resistor value should be identical on these ports.
For information, a variation of 2% leads around 1mV variation of detected voltage.
ESD protections are implemented on Vdet_I, Vref_I, Vdet_R and Vref_R accesses.
The DC connections (DC_R & DC_I) do not include any decoupling capacitor in package,
therefore it is mandatory to provide a good external DC decoupling on the PC board, as
close as possible to the package.
Ref. : DSCHE1260QAG0200 - 19 Jul 10
12/14
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Specifications subject to change without notice