ZL40810

ZL40810 10-GHz Fixed Modulus ÷ 8 Data Sheet Features Very High Operating Speed Operation down to DC with Square Wave Input Low Phase Noise (Typically better than -147dBc/Hz at 10kHz) 5V Single Supply Operation Low Power Dissipation: 480mW (Typ) Surface Mount Plastic Package With Exposed Pad (See Application Notes) Ordering Information ZL40810/DCE (tubes) 8 lead e-pad SOIC ZL40810/DCF (tape and reel) 8 lead e-pad SOIC -40° to +85° C July 2003 Description The ZL40810 is one of a range of 5V supply, very high speed low power prescalers for professional applications with a fixed modulus of divide by 8. The dividing elements are static D type flip flops and therefore allow operation down to DC if the drive signal is a pulse waveform with fast rise times. The output stage has internal 50 ohm pull up giving a 1V p-p output. See application notes for more details. Applications DC to 10 GHz PLL applications HyperLan LMDS Instrumentation Satellite Communications Fibre Optic Communications; OC48, OC192 Ultra Low Jitter Clock Systems VCC IN 1 50 Ohm VCC OUT 8 OUTPUT 7 6 OUTPUT B Vref Div 8 400 Ohm INPUT 2 INPUT B 3 20mA GND 4 GND 5 Figure 1 - Block Diagram 1 Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved. ZL40810 Pin Connections - Top View Vcc INPUT INPUT INPUT B GND Data Sheet 1 2 3 4 8 7 6 5 Vcc OUTPUT OUTPUT OUTP...