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NBC12439FN Datasheet(PDF) 1 Page - ON Semiconductor |
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NBC12439FN Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 21 page © Semiconductor Components Industries, LLC, 2009 January, 2009 − Rev. 14 1 Publication Order Number: NBC12439/D NBC12439, NBC12439A 3.3V/5V Programmable PLL Synthesized Clock Generator 50 MHz to 800 MHz Description The NBC12439 and NBC12439A are general purpose, PLL based synthesized clock sources. 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. 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) • 0°C to 70°C Ambient Operating Temperature (NBC12439) • −40°C to 85°C Ambient Operating Temperature (NBC12439A) • Pb−Free Packages are Available MARKING DIAGRAMS PLCC−28 FN SUFFIX CASE 776 NBC12439xG AWLYYWW 128 LQFP−32 FA SUFFIX CASE 873A http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 17 of this data sheet. ORDERING INFORMATION x = Blank or A A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Package NBC12 439x AWLYYWWG QFN32 MN SUFFIX CASE 488AM 32 1 NBC12 439x AWLYYWWG G 1 (Note: Microdot may be in either location) |
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