CDC421A312RGER
Active312.5-MHZ FULLY INTEGRATED FIXED FREQUENCY LOW-JITTER CRYSTAL OSCILLATOR CLOCK GENERATOR
CDC421A312RGER
Active312.5-MHZ FULLY INTEGRATED FIXED FREQUENCY LOW-JITTER CRYSTAL OSCILLATOR CLOCK GENERATOR
Description
General part information
CDC421A312 Series
The CDC421Axxx is a high-performance, low-phase-noise clock generator. It has an integrated low-noise, LC-based voltage-controlled oscillator (VCO) that operates within the 1.75 GHz to 2.35 GHz frequency range. It has an integrated crystal oscillator that operates in conjunction with an external AT-cut crystal to produce a stable frequency reference for a phase-locked loop (PLL)-based frequency synthesizer. The output frequency (fOUT) is proportional to the frequency of the input crystal (fXTAL).
The device operates in 3.3-V supply environment and is characterized for operation from -40°C to +85°C. The CDC421Axxx is available in a QFN-24 4-mm × 4-mm package.
The CDC421Axxx differs from the CDC421xxx in the following ways:
Technical Specifications
Parameters and characteristics for this part
| Specification | CDC421A312RGER |
|---|---|
| Differential Input | No |
| Differential Output | Yes |
| Divider | Yes |
| Frequency - Max | 312.5 MHz |
| Input | LVCMOS, Crystal |
| Input Ratio | 1 |
| Mounting Type | Surface Mount |
| Multiplier | No |
| Number of Circuits | 1 |
| Operating Temperature (Max) | 85 °C |
| Operating Temperature (Min) | -40 °C |
| Output | LVPECL |
| Output Ratio | 1 |
| Package / Case | 24-VFQFN Exposed Pad |
| Package Length | 4 mm |
| Package Name | 24-VQFN |
| Package Width | 4 mm |
| PLL | Yes |
| Type | Clock Generator |
| Voltage - Supply (Maximum) | 3.6 V |
| Voltage - Supply (Minimum) | 3 V |
Pricing
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CAD
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Documents
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