VCXO Oscillators – SMD
QVS TECH SMD VCXO products are available in many configurations. Features include low current consumption, wide pulling range, low voltage options and tight stability. Typical applications include Digital TV-tuner, Digital Video, DVD, Portable MP3 Players, Synthesizers, Computers and Test Equipment. Typical packages available in 3x5 and 5x7 sizes with Clipped Sine Wave, HCMOS or LVDS/LPECL output and frequencies up to 750MHz, 155.52MHz, 311.04MHz, 622.08MHz. Custom options always available, let us know what you need.
| Series | Size | Output | Frequency | RoHS Compliant | Datasheet |
|---|---|---|---|---|---|
QCV60  | 5 x 3.2 x 1.6mm | TTL/HCMOS | 1MHz - 77.76MHz | Yes | |
QCV30  | 7 x 5 x 1.8mm | TTL/HCMOS | 1MHz - 170MHz | Yes | |
QCV40  | 7 x 5 x 2mm | LVDS/PECL | 1MHz - 750MHz | Yes | |
QCV35  | 14.3 x 10.2 x 6mm | PECL | 1MHz - 750MHz | Yes | |
QCV45  | 14 x 9.8 x 4.7mm | PECL | 25MHz - 650MHz | Yes | |
QCV50  | 14 x 9.8 x 4.7mm | LVDS | 25MHz - 650MHz | Yes | |
QCV25  | 13.4 x 9.6 x 6.9mm | HCMOS | 8MHz - 36MHz | Yes | |
QCV15  | 14 Pin DIP | Clipped Sine Wave | 9.6MHz - 160MHz | No | |
QCV20  | 14 Pin DIP | TTL/HCMOS | 1MHz - 170MHz | Yes | |
QCV10  | 14.4 x 11.4 x 3.8mm | TTL/HCMOS | 2MHz to 40MHz | No |
A Voltage Controlled Crystal Oscillator (VCXO) is a crystal oscillator where the frequency modulation in the output signal is achieved by variations in the external control voltage. There are two reasons for using a VCXO: to adjust the output frequency to match, or in some cases be the exact multiple of, an accurate external reference; or, if the oscillator drives equipment that may generate radio-frequency interference, adding a varying voltage to its control input will disperse the interference spectrum, making it less objectionable.
VCXOs are used for function generators, generation of variable sounds used in music synthesizers, Phased Locked Loops (PLL) and frequency synthesizers.
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