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PDF ZL40812 Data sheet ( Hoja de datos )
| Número de pieza | ZL40812 | |
| Descripción | 10GHz Fixed Modulus / 16 | |
| Fabricantes | Zarlink Semiconductor | |
| Logotipo |  |
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Features
• Very High Operating Speed
• Operation down to DC with Square Wave Input
• Low Phase Noise (Typically better than -
152dBc/Hz at 10kHz)
• 5V Single Supply Operation
• Low Power Dissipation: 500mW (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
ZL40812
10GHz Fixed Modulus ÷ 16
Data Sheet
July 2003
Ordering Information
ZL40812/DCE (tubes)
8 lead e-pad SOIC
ZL40812/DCF (tape and reel) 8 lead e-pad SOIC
-40°C to +85°C
Description
Description The ZL40812 is one of a range of 5V
supply, very high speed low power prescalers for
professional applications with a fixed modulus of divide
by 16. 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 risetimes. 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 16
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  
ZL40812
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
Input overload
2,3 2
2,3 2
5
8
dBm
dBm
fin = 2 GHz
fin = 4 GHz
Input overload
Input overload
2,3 5
2,3 5
13
11
dBm
dBm
fin = 9 GHz
fin = 10 GHz
Input Edge Speed
Output voltage
2,3
6,7
900
1
V/ìs
Vp-p
For <2GHz Operation, see Note 1
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
Note 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.
The following graph summarizes the Input and Output Characteristics table:
20.00
10.00
Typical input sensitivity (sinewave drive) @ -40 to +85 Deg C
85 Deg C
70 Deg C
25 Deg C
0.00
-10.00
GUARANTEED
OPERATING WINDOW
-20.00
-30.00
Input frequency extends to DC if the
source has an edgespeed of 900 V/us or less
85C
70
25C
-40C
MAX (Typ)
-40.00
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Input Frequency (GHz)
Figure 4 - Input Sensitivity @ -40, +25, +70 and +85 Deg C
5
Zarlink Semiconductor Inc.
5 Page 
ZL40812
Data Sheet
Figure 14 - Output waveform - differential
VCC=4.75V, Vin=-10dBm, Fin=5GHz
Figure 15 - Output waveform - differential
VCC=4.75V, Vin=-dBm, Fin=2GHz
11
Zarlink Semiconductor Inc.
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ZL40812.PDF ] | |
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