LC72121
Key Features
- I/O ports - Output-only ports: 4 pins - I/O ports: 2 pins - Supports the output of a clock time base signal.
- Operating ranges - Supply voltage: 2.7 to 3.6 V - Operating temperature: - 40 to 85°C
- Package - DIP22S, MFP24S, SSOP24
- Comparison with the LC72131/M - Serial data compatible (CCB) - Identical pin functions - Two VSS pins were added. - The DIP version is pin compatible (VSS pins were inserted as the DIP22S NC pins.) - The MFP product provides a modified pin assignment (The MFP20 package was replaced by an MFP24 package, and extra VSS pins were added.) - The SSOP24 is a newly developed package that has the same pin assignment as the MFP24S product. Functions
- High-speed programmable divider - FMIN: 10 to 160 MHz ... Pulse swallower technique (With built-in divide-by-2 prescaler) - AMIN: 2 to 40 MHz ... Pulse swallower technique 0.5 to 10 MHz ... Direct division technique
- IF counter - IFIN: 0.4 to 12 MHz ... For AM and FM IF counting
- Reference frequency - One of 12 reference frequencies can be selected (using a 4.5 or 7.2 MHz crystal element) 1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50, or 100 kHz
- 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.
- CCB is a trademark of SANYO ELECTRIC CO., LTD.
