Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

MC145156 Fiches technique(PDF) 6 Page - Motorola, Inc

No de pièce MC145156
Description  Parallel-Input PLL Frequency Synthesizer
Download  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  MOTOROLA [Motorola, Inc]
Site Internet  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC145156 Fiches technique(HTML) 6 Page - Motorola, Inc

Back Button MC145156 Datasheet HTML 2Page - Motorola, Inc MC145156 Datasheet HTML 3Page - Motorola, Inc MC145156 Datasheet HTML 4Page - Motorola, Inc MC145156 Datasheet HTML 5Page - Motorola, Inc MC145156 Datasheet HTML 6Page - Motorola, Inc MC145156 Datasheet HTML 7Page - Motorola, Inc MC145156 Datasheet HTML 8Page - Motorola, Inc MC145156 Datasheet HTML 9Page - Motorola, Inc MC145156 Datasheet HTML 10Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 36 page
background image
MC145151–2 through MC145158–2
MOTOROLA
6
12 x 8 ROM REFERENCE DECODER
φV
MC145152–2 BLOCK DIAGRAM
φR
12–BIT
÷ R COUNTER
PHASE
DETECTOR
LOCK
DETECT
LD
fin
OSCin
OSCout
12
N0
N2
N4 N5
N7
N9
NOTE: N0 – N9, A0 – A5, and RA0 – RA2 have pull–up resistors that are not shown.
10–BIT
÷ N COUNTER
CONTROL
LOGIC
MC
6–BIT
÷ A COUNTER
A5
A3 A2
A0
RA2
RA0
RA1
PIN DESCRIPTIONS
INPUT PINS
fin
Frequency Input (Pin 1)
Input to the positive edge triggered
÷ N and ÷ A counters.
fin is typically derived from a dual–modulus prescaler and is
ac coupled into the device. For larger amplitude signals
(standard CMOS logic levels) dc coupling may be used.
RA0, RA1, RA2
Reference Address Inputs (Pins 4, 5, 6)
These three inputs establish a code defining one of eight
possible divide values for the total reference divider. The
total reference divide values are as follows:
Reference Address Code
Total
Divide
Value
RA2
RA1
RA0
Divide
Value
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
8
64
128
256
512
1024
1160
2048
N0 – N9
N Counter Programming Inputs (Pins 11 – 20)
The N inputs provide the data that is preset into the
÷ N
counter when it reaches the count of 0. N0 is the least signifi-
cant digit and N9 is the most significant. Pull–up resistors en-
sure that inputs left open remain at a logic 1 and require only
a SPST switch to alter data to the zero state.
A0 – A5
A Counter Programming Inputs
(Pins 23, 21, 22, 24, 25, 10)
The A inputs define the number of clock cycles of fin that
require a logic 0 on the MC output (see Dual–Modulus
Prescaling section). The A inputs all have internal pull–up
resistors that ensure that inputs left open will remain at a
logic 1.
OSCin, OSCout
Reference Oscillator Input/Output (Pins 27, 26)
These pins form an on–chip reference oscillator when con-
nected to terminals of an external parallel resonant crystal.
Frequency setting capacitors of appropriate value must be
connected from OSCin to ground and OSCout to ground.
OSCin may also serve as the input for an externally–gener-
ated reference signal. This signal is typically ac coupled to
OSCin, but for larger amplitude signals (standard CMOS
logic levels) dc coupling may also be used. In the external
reference mode, no connection is required to OSCout.
OUTPUT PINS
φR, φV
Phase Detector B Outputs (Pins 7, 8)
These phase detector outputs can be combined externally
for a loop–error signal.
If the frequency fV is greater than fR or if the phase of fV is
leading, then error information is provided by
φV pulsing low.
φR remains essentially high.
If the frequency fV is less than fR or if the phase of fV is
lagging, then error information is provided by
φR pulsing low.
φV remains essentially high.
If the frequency of fV = fR and both are in phase, then both
φV and φR remain high except for a small minimum time
period when both pulse low in phase.
MC
Dual–Modulus Prescale Control Output (Pin 9)
Signal generated by the on–chip control logic circuitry for
controlling an external dual–modulus prescaler. The MC
level will be low at the beginning of a count cycle and will
remain low until the
÷ A counter has counted down from its
programmed value. At this time, MC goes high and remains
high until the
÷ N counter has counted the rest of the way
down from its programmed value (N – A additional counts
since both
÷ N and ÷ A are counting down during the first


Numéro de pièce similaire - MC145156

FabricantNo de pièceFiches techniqueDescription
logo
LANSDALE Semiconductor ...
MC145156DW2 LANSDALE-MC145156DW2 Datasheet
536Kb / 35P
   PLL Frequency Synthesizer Family
MC145156P2 LANSDALE-MC145156P2 Datasheet
536Kb / 35P
   PLL Frequency Synthesizer Family
More results

Description similaire - MC145156

FabricantNo de pièceFiches techniqueDescription
logo
Nippon Precision Circui...
SM5158A NPC-SM5158A Datasheet
60Kb / 7P
   Serial input PLL frequency synthesizer
logo
Fujitsu Component Limit...
MB15A02 FUJITSU-MB15A02 Datasheet
2Mb / 16P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
MB1501 FUJITSU-MB1501 Datasheet
238Kb / 17P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
MB1511 FUJITSU-MB1511 Datasheet
127Kb / 15P
   Serial Input PLL Frequency Synthesizer
logo
Motorola, Inc
MC12210 MOTOROLA-MC12210 Datasheet
98Kb / 12P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
logo
Fujitsu Component Limit...
MB1502 FUJITSU-MB1502 Datasheet
244Kb / 15P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
logo
Nippon Precision Circui...
PLL200 NPC-PLL200 Datasheet
629Kb / 7P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
logo
Motorola, Inc
MC12202 MOTOROLA-MC12202 Datasheet
165Kb / 12P
   Serial Input PLL Frequency Synthesizer
logo
Fujitsu Component Limit...
MB1507 FUJITSU-MB1507 Datasheet
117Kb / 14P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
logo
Motorola, Inc
MC145157-2 MOTOROLA-MC145157-2 Datasheet
81Kb / 3P
   SERIAL INPUT PLL FREQUENCY SYNTHESIZER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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