5072
The 5072 series is 155.52 MHz VCXO IC. It incorporates a 155.52 MHz fundamental frequency oscillator circuit and a differential LVPECL output circuit on a single chip. The oscillator circuit features characteristics optimized for VCXO operation, and includes a varactor connection pin. The 5072 series can be configured with few external components, making them ideal as miniature VCXO modules.
5072.pdf
Datasheets
5072.pdfBlock Diagram
Key Features
- 3.0 to 3.6V operating supply voltage range
- 70 MHz to 200 MHz oscillator frequency range
- -40 to 85°C operating temperature range
- Differential LVPECL output with bipolar construction provide effective 0 (zero) output impedance
- Well matched output achieves 50 ± 5% output duty(measured at the output crossing point)
- Flexible design to optimize phase noise and pullability
- LVPECL differential output 50Ω termination
- Bipolar output design
- Low Phase Noise
- Standby function
- When output is disabled, oscillator stops and Hi-Z output
- 2 Output enable options
- CF5072BA is logic enable high
- CF5072CA is logic enable low
- -40 to 85°C operating temperature range
Applications
- Ethernet (Gb)
- SONET
- Internet infrastructure
- Fiber Communications
- Routers
- Switches
- System Clock
Benefits
- Achieve wide pullability for special needs
- Wide pullability options to match various ?F/V needs
- Good Phase noise typical -145 dB floor
- Output drives single or multiple inputs
- High tolerance to PCB impedance mismatch compared with CMOS output designs / instantiations
- Stable power-on startup
- Clean Start when enabled
- Low PSRR
