SUMMARY

VBR=25V; IR=20nA; Cd=47pF(Nom)

DESCRIPTION

The ZDC834A is a new hyperabrupt SOT23 packaged dual common cathode varactor diode , offering users both compact circuit design and impressive performance comprising tightly controlled CV characteristics, a capacitance of typically 47 pf @ 2V,excellent phase noise performance and high Q of 200 min.

This superior performance in the VHF and UHF ranges has been optimised to meet the high filtering requirements of a wide range of Digital Audio Broadcasting (DAB) module circuits , mobile radios, pagers, voltage controlled crystal oscillators (VCXO) and temperature controlled crystal oscillators (TCXO).

FEATURES

• Common Cathode dual Diode ( monolithic construction )

• VHF- UHF operation

• Close tolerance CV characteristics

• High Tuning Ratio

• Low IR , enabling excellent Phase Noise Performance

( IR typically < 200pA @ 20V )

• High Q

APPLICATIONS

• DAB Receiver Modules for use with:

- Low voltage battery portables

- Hi-Fi

- In car radio

- MP3 players

• Voltage and Temperature Controlled Crystal Oscillators

• Mobile Radio and Pagers.