Playing an important role in a host of RF applications

Varicap diodes (or varactor or tuning diodes) are principally used as voltage variable capacitors, with their diode function a secondary option. These small devices play an important role in a host of RF applications from tuning, frequency multiplier and modulation, to couple elements in filters with controlled bandwidth, parametric amplification and switching in the VHF and microwave regions.

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New and updated products

BB207

FM variable capacitance double diode

BB187

VHF variable capacitance diode



Key features and benefits

  • Excellent matching
  • Excellent linearity and matching
  • Very small and leadless SMD packages
  • Very low series resistance
  • Complete portfolio covering a wide range of applications
  • Tight capacitance specifications
  • High capacitance ratio

Key applications

  • Electronic tuning including satellite and terrestrial TV tuners
  • DVD recorders
  • FM radio tuning from car radios to mobile phones
  • Voltage controlled oscillator (VCO)
  • Voltage controlled crystal oscillator / temperature controlled crystal oscillator (VCXO/TCXO)

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Descriptive summary

A key product focus for NXP, our very diverse varicap portfolio covers a multitude of applications. For example, among the latest developments in low voltage varicap diodes is the BB202LX in the Ultra Thin Leadless Package (UTLP) SOD882T. This solution is ideal for electronic FM radio tuning and VCOs (Voltage Controlled Oscillators) in mobile phones.

Products

Type numberDescriptionStatusQuick access
BB131VHF variable capacitance diode Download datasheet
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BB135UHF variable capacitance diode Download datasheet
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BB145BLow-voltage variable capacitance diode Download datasheet
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BB148VHF variable capacitance diode Download datasheet
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BB149UHF variable capacitance diode Download datasheet
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BB149AUHF variable capacitance diode Download datasheet
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BB152VHF variable capacitance diode Download datasheet
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BB153VHF variable capacitance diode Download datasheet
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BB156Low-voltage variable capacitance diode Download datasheet
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BB178VHF variable capacitance diode Download datasheet
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BB178LXVHF variable capacitance diode Download datasheet
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BB179UHF variable capacitance diode Download datasheet
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BB179BUHF variable capacitance diode Download datasheet
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BB179BLXUHF variable capacitance diode Download datasheet
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BB179LXUHF variable capacitance diode Download datasheet
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BB181VHF variable capacitance diode Download datasheet
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BB182VHF variable capacitance diode Download datasheet
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BB184UHF low voltage variable capacitance diode Download datasheet
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BB184LXUHF variable capacitance diode Order sample
BB187VHF variable capacitance diode Download datasheet
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BB187LXVHF variable capacitance diode Download datasheet
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BB189UHF variable capacitance diode Download datasheet
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BB198Variable capacitance diode for VCO and VCXO Download datasheet
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BB199Variable capacitance diode for VCO and VCXO Download datasheet
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BB201Low-voltage variable capacitance double diode Download datasheet
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BB202Low voltage variable capacitance diode Download datasheet
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BB207FM variable capacitance double diode Download datasheet
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BB208-02Low voltage variable capacitance diode Download datasheet
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BB208-03Low voltage variable capacitance diode Download datasheet
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BBY40VHF variable capacitance diode Download datasheet
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