onsemi NBC12439A
The NBC12439A is a general purpose, PLL based synthesized clock source. The VCO will operate over a frequency range of 400 MHz to 800 MHz. The VCO frequency is sent to the N−output divider, where it can be configured to provide division ratios of 1, 2, 4 or 8.| Part No. | NBC12439A |
|---|---|
| Datasheet | NBC12439A Download |
| Manufacturer |  onsemi |
| Description | Programmable PLL Synthesized Clock Generator |
| Buy | Stock & Price |
DESCRIPTION
The VCO and output frequency can be programmed using the parallel or serial interfaces to the configuration logic. Output frequency steps of 16 MHz, 8 MHz, 4 MHz, or 2 MHz can be achieved using a 16 MHz crystal, depending on the output divider settings. The PLL loop filter is fully integrated and does not require any external components.FEATURES
● Best−in−Class Output Jitter Performance, ±20 ps Peak−to−Peak● 50 MHz to 800 MHz Programmable Differential PECL Outputs
● Fully Integrated Phase−Lock−Loop with Internal Loop Filter
● Parallel Interface for Programming Counter and Output Dividers During Powerup
● Minimal Frequency Overshoot
● Serial 3−Wire Programming Interface
● Crystal Oscillator Inputs 10 MHz to 20 MHz
● Operating Range: VCC = 3.135 V to 5.25 V
● CMOS and TTL Compatible Control Inputs
● Pin and Function Compatible with Motorola MC12439 and MPC9239
● Powerdown of PECL Outputs (B16)
● −40°C to 85°C Ambient Operating Temperature
● These Devices are Pb−Free and are...
