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PDF ZL40810 Data sheet ( Hoja de datos )
| Número de pieza | ZL40810 | |
| Descripción | 10-GHz Fixed Modulus 8 | |
| Fabricantes | Zarlink Semiconductor Inc | |
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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)
Applications
• DC to 10 GHz PLL applications
• HyperLan
• LMDS
• Instrumentation
• Satellite Communications
• Fibre Optic Communications; OC48, OC192
• Ultra Low Jitter Clock Systems
ZL40810
10-GHz Fixed Modulus ÷ 8
Data Sheet
July 2003
Ordering Information
ZL40810/DCE (tubes)
8 lead e-pad SOIC
ZL40810/DCF (tape and reel) 8 lead e-pad SOIC
-40° to +85°C
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.
VCC IN
1
Vref
INPUT
2
INPUT B
3
400 Ohm
GND
4
50 Ohm
Div 8
VCC OUT
8
OUTPUT
OUTPUT B
7
6
20mA
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.
1 page  
ZL40810
Data Sheet
Input and Output Characteristics†
Characteristic
Pin Min. Typ. Max. Units
Conditions
Input sensitivity
2,3
-15 -10 dBm Tamb = 85C, Fin = 2 to 8 GHz
Input overload
2,3 2
5
dBm fin = 2 GHz
Input overload
2,3 2
8
dBm fin = 4 GHz
Input overload
2,3 5
13
dBm fin = 9 GHz
Input overload
Input Edge Speed
2,3 5
2,3 900
11
dBm
V/µs
fin = 10 GHz
For <2GHz operation1.
Output voltage
6,7
1
Vp-p Differential Into 50ohm pullup
resistors
Output power
6,7 -4 -1 2 dBm Single-ended output, fin = 2GHz to
10GHz, pwr ip= -10dBm
O/P Duty Cycle
6,7 45 50 55
%
Trise and Tfall
6,7
110
ps
1. For an input signal frequency of less than 2GHz, the slew rate of the sinewave signal becomes progressively too
slow for the divider.
Input sensitivity and output power values assume 50 Ohm source and load impedances
For details of the test set-up, refer to the Application Note for RF Prescalers.
5
Zarlink Semiconductor Inc.
5 Page 
ZL40810
Figures 8 and 9 show the output waveforms with a lower input frequency.
Data Sheet
Figure 14 - Differential output with small input amplitude
(VCC = 4.75V, Vin = -10dBm, Fin = 5GHz)
Figure 15 - Differential output with lower input frequency
(VCC = 4.75V, Vin = -10dBm, Fin = 2GHz)
11
Zarlink Semiconductor Inc.
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ZL40810.PDF ] | |
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