LC72121MA Datasheet PDF - ON Semiconductor
Part Number | LC72121MA | |
Description | PLL Frequency Synthesizers | |
Manufacturers | ON Semiconductor | |
Logo | ||
There is a preview and LC72121MA download ( pdf file ) link at the bottom of this page. Total 24 Pages |
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LC72121MA
CMOS IC
PLL Frequency Synthesizers
for Electronic Tuning
http://onsemi.com
Overview
The LC72121MA are high input sensitivity (20mVrms at 130MHz) PLL frequency synthesizers for 3V systems.
These ICs are serial data (CCB) compatible with the LC72131K/KMA, and feature the improved input sensitivity and
lower spurious radiation (provided by a redesigned ground system) required in high-performance AM/FM tuners.
Features
• High-speed programmable divider
• FMIN: 10 to 160MHz ·············· Pulse swallower technique (With built-in divide-by-2 prescaler)
• AMIN: 2 to 40MHz ················ Pulse swallower technique
0.5 to 10MHz ·············· Direct division technique
• IF counter
• IFIN: 0.4 to 15MHz ················ For AM and FM IF counting
• Reference frequency
• One of 12 reference frequencies can be selected (using a 4.5 or 7.2MHz crystal element)
1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50, and 100kHz
• Phase comparator
• Supports dead zone control. • Built-in unlocked state detection circuit • Built-in deadlock clear circuit
• An MOS transistor for an active low-pass filter is built in.
• I/O ports
• Output-only ports: 4 pins
• I/O ports: 2 pins
• Supports the output of a clock time base signal.
• Serial data I/O
• Support CCB format communication with the system controller.
• Operating ranges
• Supply voltage: 2.7 to 3.6V • Operating temperature: -40 to +85°C
• Package
• MFP24SJ
• CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
• CCB is a registered trademark of Semiconductor Components Industries, LLC.
Semiconductor Components Industries, LLC, 2013
June, 2013
30712HKPC 20120124-S00002 No.A2009-1/24
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Block Diagram
VSSX
XIN
XOUT
FMIN
1/2
LC72121MA
REFERENCE
DIVIDER
SWALLOW COUNTER
1/16,1/17 4bits
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
AMIN
CE
DI
CL
DO
VDD
VSSd
12bits PROGRAMMABLE
DIVIDER
CCB
I/F
POWER
ON
RESET
DATA SHIFT REGISTER
LATCH
UNIVERSAL
COUNTER
BO1 BO2 BO3 BO4
IO1 IO2
PD
AIN
AOUT
VSSa
IFIN
No.A2009-5/24
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LC72121MA electronic component. |
Information | Total 24 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ LC72121MA.PDF Datasheet ] |
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