Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

MC145145P1 Scheda tecnica(PDF) 6 Page - LANSDALE Semiconductor Inc.

Il numero della parte MC145145P1
Spiegazioni elettronici  4?밄it Data Bus Input PLL Frequency Synthesizer
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  LANSDALE [LANSDALE Semiconductor Inc.]
Homepage  http://www.lansdale.com
Logo LANSDALE - LANSDALE Semiconductor Inc.

MC145145P1 Scheda tecnica(HTML) 6 Page - LANSDALE Semiconductor Inc.

Back Button MC145145P1 Datasheet HTML 2Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 3Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 4Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 5Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 6Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 7Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 8Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 9Page - LANSDALE Semiconductor Inc. MC145145P1 Datasheet HTML 10Page - LANSDALE Semiconductor Inc. Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 12 page
background image
www.lansdale.com
Page 6 of 12
LANSDALE Semiconductor, Inc.
ML145145
PIN DESCRIPTIONS
INPUT PINS
D0 – D3
Data Inputs (PDIP – Pins 2, 1, 18, 17; SOG – Pins 2, 1, 20, 19)
Information at these inputs is transferred to the internal
latches when the ST input is in the high state. D3 is most sig-
nigicant bit.
fin
Frequency Input (PDIP – Pin 3, SOG – Pin 4)
Input to ÷N portion of synthesizer. fin is typically derived
from the loop VCO and is ac couples. For larger amplitude sig-
nals (standard CMOS – logic levels) dc coupling may be used.
OSCin/OSCout
Reference Oscillator Input/Output (PDIP – Pins 6, 7; SOG
– Pins 7, 8)
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 con-
nected from OSCin to ground and OSCout to ground. OSCin
may also serve as input for an externally–generated 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 refrence mode, no
connection is required to OSCout.
A0 – A2
Address Inputs (PDIP – Pins 8, 9, 10; SOG – Pins 9, 10, 12)
A0, A1 and A2 are used to define which latch receives the
information on the data input lines. The addresses refer to the
following latches:
ST
Strobe Transfer (PDIP – Pin 11, SOG – Pin 13)
The rising edge of strobe transfers data into the addressed
latch, the falling edge of strobe latches data into the latch. This
pin should normally be held low to avoid loading latches with
invalid data.
OUTPUT PINS
PDout
Single–Ended Phase Detector output (PDIP – Pin 12, SOG
– Pin 14)
Three–state output of phase detector for use as loop–error
signal.
Frequency fV > fR or fV Leading: Negative Pulses
Frequency fV < fR or fV Lagging: Positive Pulses
Frequency fV = fR and Phase Coincidence: High–Impedance
State
LD
Lock Detector Signal (PDIP – Pin 13, SOG – Pin 15)
High level when loop is locked (fR, fV of same phase and
frequency). Pulses low when loop is out of lock.
φV, φR
Phase Detect or Outputs (PDIP – Pin 12, SOG – Pin 14)
These phase detector outputs can be combined externally for
a loop–error signal. A single–ended output is also available for
this purpose (see PDout).
If 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 of fV – fR and both are in phase, then both
φV and φR remain high except for a small minimum time peri-
od when both pulse low in phase.
REFout
Buffered Reference Output (DIP – Pin 16, SOG – Pin 18)
Buffered output of on–chip reference oscillator or externally
provided reference–input signal.
POWER SUPPLY PINS
VSS
Ground (PDIP – Pin 4, SOG – Pin 5)
Circuit Ground
VDD
Positive Power Supply (PDIP – Pin 5, SOG – Pin 6)
The positive supply voltage may range from 3.0 to 9.0 V
with respect to VSS.
Issue b


Codice articolo simile - MC145145P1

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
LANSDALE Semiconductor ...
MC145145P1 LANSDALE-MC145145P1 Datasheet
1Mb / 12P
   4-Bit Data Bus Input PLL Frequency Synthesizer
More results

Descrizione simile - MC145145P1

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
LANSDALE Semiconductor ...
ML145146 LANSDALE-ML145146_08 Datasheet
1Mb / 12P
   4?밄it Data Bus Input PLL Frequency Synthesizer
logo
Motorola, Inc
MC145146P-2 MOTOROLA-MC145146P-2 Datasheet
55Kb / 2P
   4 BIT DATA BUS INPUT BUS INPUT PLL FREQUENCY SYNTHESIZER
MC145146-2 MOTOROLA-MC145146-2 Datasheet
59Kb / 2P
   4-Bit Data Bus Input PLL Frequency Synthesizer
logo
LANSDALE Semiconductor ...
ML145145 LANSDALE-ML145145 Datasheet
1Mb / 12P
   4-Bit Data Bus Input PLL Frequency Synthesizer
ML145146 LANSDALE-ML145146 Datasheet
3Mb / 12P
   4-Bit Data Bus Input PLL Frequency Synthesizer
logo
Motorola, Inc
MC1451452 MOTOROLA-MC1451452 Datasheet
58Kb / 2P
   4-Bit Data Bus Inpu PLL Frequency Synthesizer
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
More results


Html Pages

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


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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