Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

SP8854D Datasheet(PDF) 11 Page - Zarlink Semiconductor Inc

Part # SP8854D
Description  1.7GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ZARLINK [Zarlink Semiconductor Inc]
Direct Link  http://www.zarlink.com
Logo ZARLINK - Zarlink Semiconductor Inc

SP8854D Datasheet(HTML) 11 Page - Zarlink Semiconductor Inc

Back Button SP8854D Datasheet HTML 6Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 7Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 8Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 9Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 10Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 11Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 12Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 13Page - Zarlink Semiconductor Inc SP8854D Datasheet HTML 14Page - Zarlink Semiconductor Inc  
Zoom Inzoom in Zoom Outzoom out
 11 / 14 page
background image
SP8854D
3
PIN DESCRIPTION
PIN
DESCRIPTION
1,2,3,4,5,6,7,8,9,10,11,42,43,44
These pins are the data inputs used to set the RF divider ratio (M.N+A). Open
circuit=1 (high) on these pins. Data is transparent from pins to RF buffer when Pin
39 (strobe) is HI and frozen in RF buffer when Pin 39 is LO.
13, 14 (RF INPUT)
Balanced inputs to the RF pre–amplifier. For single ended operation the signal is
AC coupled into pin 13 with pin 14 AC decoupled to ground (or vice–versa.) Pins
13 and 14 are internally DC biased.
17 (LOCK DETECT INPUT)
A current sink into this pin is enabled when the lock detect circuit indicates lock.
Used to give an external indication of phase lock.
18 (C–LOCK DETECT)
A capacitor connected to this point determines the lock detect integrator time
constant and can be used to vary the sensitivity of the phase lock indicator.
19 (Rset)
An external resistor from Pin 19 to VCC sets the charge pump output current.
20 (CP OUTPUT)
The phase detector output is a single ended charge pump sourcing or sinking
current to the inverting input of an external loop filter.
21 (CP REF)
Connected to the non–inverting input of the loop filter to set the optimum DC bias.
22 (Fref/Fpd ENABLE)
Part of the input bus. When this pin is logic HI the Fref and Fpd outputs are en-
abled. Open circuit=HI.
23 (CONTROL DIRECTION)
This pin controls charge pump output direction. For Pin 23 HI the output sinks
current when Fpd > Fref or when the RF phase leads Ref phase. for Pin 23 LO the
relationship is reversed. (see table 2).
24
=Fpd if Pin 23 is HI
=Fref if Pin 23 is LO
RF divider output pulses. Fpd=RF input frequency/(M.N+A). Pulse width=8
RF input cycles (1 cycle of the divide by 8 prescaler output).
25
=Fref if Pin 23 is HI
=Fpd if pin 23 is LO
Reference divider output pulses. Fref=Reference input frequency/R. Pulse width
=high period of Ref input.
27 (Reference Oscillator Capacitor)
Leave open circuit if an external reference is used. See Fig. 5 for typical
connection for use as an onboard crystal oscillator.
28 (Ref IN/XTAL)
This pin is the input buffer amplifier for an external reference signal. This amplifier
provides the active element if an onboard crystal oscillator is used.
29,30,31,32,33,34,35,36,37,38
These pins set the Reference divider ratio R. Open circuit =HI.
39 (Strobe)
When Pin 39 is HI the A, M, and R counters are held in the reset state and the
charge pump output is disabled. When Pin 39 is low the data on the RF data and
PD Gain data inputs is fixed in the buffers, the buffers are loaded into the RF
counters and the PD Gain control, all the counters are active, and the charge
pump is enabled. Open circuit =HI.
40, 41 (PD Gain)
These pins set the charge pump current multiplication factor (see table 1). The
data is transparent into the buffers when Pin 39 is HI and frozen when Pin 39 is
LO. Open circuit =HI.


Similar Part No. - SP8854D

ManufacturerPart #DatasheetDescription
logo
Mitel Networks Corporat...
SP8854 MITEL-SP8854 Datasheet
176Kb / 13P
   2쨌7GHz Parallel Load Professional Synthesiser
SP8854E MITEL-SP8854E Datasheet
176Kb / 13P
   2쨌7GHz Parallel Load Professional Synthesiser
logo
Zarlink Semiconductor I...
SP8854E ZARLINK-SP8854E Datasheet
585Kb / 14P
   2.7GHz Parallel Load Professional Synthesiser
logo
Mitel Networks Corporat...
SP8854EIGHCAR MITEL-SP8854EIGHCAR Datasheet
176Kb / 13P
   2쨌7GHz Parallel Load Professional Synthesiser
logo
Zarlink Semiconductor I...
SP8854EIGHCAR ZARLINK-SP8854EIGHCAR Datasheet
585Kb / 14P
   2.7GHz Parallel Load Professional Synthesiser
More results

Similar Description - SP8854D

ManufacturerPart #DatasheetDescription
logo
Zarlink Semiconductor I...
SP8855D ZARLINK-SP8855D Datasheet
551Kb / 14P
   1.7GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER
SP8852D ZARLINK-SP8852D Datasheet
555Kb / 14P
   1.7GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER
logo
List of Unclassifed Man...
SP8855E ETC2-SP8855E Datasheet
1Mb / 14P
   2.8GHz Parallel Load Professional Synthesiser
logo
Zarlink Semiconductor I...
SP8854E ZARLINK-SP8854E Datasheet
585Kb / 14P
   2.7GHz Parallel Load Professional Synthesiser
SP8855E ZARLINK-SP8855E Datasheet
453Kb / 14P
   2.8GHz Parallel Load Professional Synthesiser
logo
Mitel Networks Corporat...
SP8854E MITEL-SP8854E Datasheet
176Kb / 13P
   2쨌7GHz Parallel Load Professional Synthesiser
SP8855E MITEL-SP8855E Datasheet
169Kb / 14P
   2.8GHz Parallel Load Professional Synthesiser
SP8852E MITEL-SP8852E Datasheet
174Kb / 13P
   2쨌7GHz Parallel Load Professional Synthesiser
logo
Zarlink Semiconductor I...
SP8852E ZARLINK-SP8852E Datasheet
224Kb / 15P
   2쨌7GHz Parallel Load Professional Synthesiser
SP8858 ZARLINK-SP8858 Datasheet
547Kb / 21P
   1쨌5GHz Professional Synthesiser
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com