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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擄 to
+85擄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
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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.
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