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NBC12429

Programmable PLL Synthesized Clock Generator

NBC12429 PDF File

Description

3.
3 V/5 V Programmable PLL Synthesized Clock Generator 25 MHz to 400 MHz NBC12429, NBC12429A Description The NBC12429 and NBC12429A are general purpose, Phase−Lock−Loop (PLL) based synthesized clock sources.
The VCO will operate over a frequency range of 200 MHz to 400 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.
The VCO and output frequency can be programmed using the parallel or serial interfaces to the configuration logic.
Output frequency steps of 125 kHz, 250 kHz, 500 kHz, or 1.
0 MHz can be achieved using a 16 MHz crystal, depending on the output dividers.
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 • 25 MHz to 400 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 Interface • Operating Range: VCC = 3.
135 V to 5.
25 V • CMOS and TTL Compatible Control Inputs • Pin and Function Compatible with Motorola MC12429 and MPC9229 • 0°C to 70°C Ambient Operating Temperature (NBC12429) • −40°C to 85°C Ambient Operating Temperature (NBC12429A) • These Devices are Pb−Free and are RoHS Compliant www.
onsemi.
com 281 PLCC−28 FN SUFFIX CASE 776 LQFP−32 FA SUFFIX CASE 561AB 1 32 QFN32 MN SUFFIX CASE 488AM MARKING DIAGRAMS 1 28 NBC12429xG AWLYYWW NBC12 1 NBC12 429x 429x AWLYYWW- AWLYYWWG G G x = Blank or A A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device Package Shipping† NBC12429FAG NBC12429FAR2G NBC12429FNR2G NBC12429AFNG NBC12429AFNR2G NBC12429AMNR4G LQFP−32 (Pb−Free) LQFP−32 (Pb−Free) PLCC−28 (Pb−Free) PLCC−28 (Pb−Free) PL...

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