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Details, datasheet, quote on part number:ZL40812DCF
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| Part: | ZL40812DCF |
| Category: | Communication => Wireless => Frequency Divider & Prescalers => Fixed Modulus (DC to 13GHz) |
| Description: | Description = 10GHz Fixed Modulus Divide 16 Prescaler ;; Package Type = Sop / Soic ;; No. Of Pins = 8 |
| Company: | Zarlink Semiconductor |
| Datasheet: | Download ZL40812DCF datasheet File size : 536 kB |
| Request For quote: | Find where to buy ZL40812DCF
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Datasheet text preview:
ZL40812 10GHz Fixed Modulus ÷ 16
Data Sheet Fe at ure s
· · · · · · Very High Operating Speed Op er a tion down to DC with Square Wave Input Low Phase Noise (Typically better than 1 52 d Bc /H z at 10kHz) 5V Single Supply Operation Low Power Dissipation: 500mW (Typ) Surf ac e Mount Plastic Package With Exposed Pad (See Application Notes
July 2003
O rd er i ng Information ZL40812/DCE (tubes) 8 lead e-pad SOIC ZL40812/DCF (tape and reel) 8 lead e-pad SOIC - 4 0 ° 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 pp output. See application notes for more details.
A p p l ic a t i o n s
· · · · · · · DC to 10 GHz PLL applications H y p er L a n L MD S Instr umentation Satellite Communications Fibre Optic Communications; OC48, OC192 Ult ra Low Jitter Clock Systems
VCC IN 1 50 Ohm
VCC OUT 8
O U T PU T 7 6 O U T PU T B Vref Div 16
400 Ohm INPUT 2 INPUT B 3 20mA
GND 4
GND 5
F ig u re 1 - Block Diagram 1
Zar link Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved.
ZL40812
Pin Connection - Top View
Vcc INPUT INPUT INPUT B GND 1 2 3 4 Vcc OUTPUT OUTPUT OUTPUT B GND
Data Sheet
8 7 6 5
SOIC (N) E-Pad
Application Configuration
Figure 2 shows a recommended application configuration. This example shows the devices set up for single ended operation.
Vcc 5V
R3:100ohm C8:10nF C3:100pF 1 2 C4:100pf 3 R1:50ohm C5:100pf 4 5 6 8 7 C6:10nF C7:10nF C2:10nF C1:10uF
R2:50ohm
Example Configuration for Single ended operation
F ig u re 2 - Recommended Circuit Configuration The above circuit diagram shows some components in dotted lines. These are optional in many applications. 1. C1 (10 µF) and C2 (10 nF) power supply decoupling capacitors may be available on the board already. 2. R3 (100 Ohm) and C8 (10 nF) can be included if further power supply decoupling is required for the first stage biasing circuit. This may optimise the noise and jitter performance. The values are suggestions and may have to be modified if the existing supplies are particularly noisy. 3. R1 (50 Ohm), in series with C5 (100 pF), may reduce feedthrough of the input signal to the output. 4. R2 (50 Ohm) and C7 (10 nF) will help to balance the current drawn from the power supply and may reduce voltage transients on the power supply line
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Zar link Semiconductor Inc.
ZL40812
Evaluation Boards From Zarlink Semiconductor
Data Sheet
Zarlink Semiconductor provides prescaler evaluation boards. These are primarily for those interested in performing their own assessment of the operation of the prescalers. The boards are supplied unpopulated and may be assembled for single ended or differential input and output operation, type No. ZLE40008. Fully populated evaluation boards are also available, type No. ZLE40810. Once assembled, all that is required is an RF source and a DC supply for operation. The inputs and outputs are connected via side launch SMA connectors. Absolute Maximum Ratings Parameter 1 2 3 4 5 6 Supply Voltage Prescaler Input Voltage ESD protection (Static Discharge) Storage temperature Maximum Junction Temp Thermal Characteristics Thja TST -65 Symbol Vcc Min M ax 6.5V 2. 5 2 150 125 58.6 V p-p kV ºC ºC °C/W multi-layer PCB Units
AC/DC Electrical Characteristics
Electrical Characteristics (Tamb = 25C, Vcc = 5V) Characteristic Supply current Supply current Input frequency Input sensitivity Input sensitivity Input sensitivity Input overload Input overload Input Edge Speed Output voltage Output power Phase Noise (10kHz offset) O/P Duty Cycle
N ot e 1:
Pin 1 8 2,3 2,3 2,3 2,3 2,3 2,3 2,3 6,7 6,7 6,7 6,7
Min.
Typ. 0.35 100
M ax.
Units mA
Conditions Input stage bias current Divider and output stages RMS sinewave (See Note 1) fin = 1GHz to 2GHz fin = 2GHz to 9.5GHz fin = 11GHz fin = 1GHz to 4GHz fin = 5GHz to 11GHz For <2GHz operation. Differential Into 50ohm pullup resistors Single-ended output, fin = 2GHz to 10GHz, pwr ip= -10dBm Fin = 5GHz, pwr ip = 0dBm See Figure 5 to Figure 8.
130 11
mA G Hz dBm
2 -8 -15 -10 8 11 900 1 -3 -1 -152 45 50
-10 0
dBm dBm dBm dBm V/ìs V p-p
1.2
dBm dBc/Hz
55
%
The device characterisation test method incremented the amplitude over the entire range of frequency and ensures that there are no "holes" in the characteristic. Input sensitivity and output power values assume 50 Ohm source and load impedances. Character istics are guaranteed by either production test or design.
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Zar link Semiconductor Inc.
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