Name: PLL Frequency Synthesizer for Electronic Tuning
Brand: PLL Frequency Synthesizer for Electronic Tuning
SKU: LC72121V

PLL Frequency Synthesizer for Electronic Tuning

Obsolete

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Overview

The LC72121V is high input sensitivity (20 mVrms at 130 MHz) PLL frequency synthesizer for 3 V systems. This IC is serial data compatible with the LC72131, and feature the improved input sensitivity and lower spurious radiation (provided by a redesigned ground system) required in high-performance AM/FM tuners.

PLL frequency synthesizer for 3 V systems

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 15 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, and 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.
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

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Reference Price

LC72121V-D-MPB-E

Obsolete

SSOP-24

565AQ

260

FNFLD

PLL Frequency Synthesizer

Serial

8000

150

2.7

3.6

-40

Price N/A

LC72121V-D-TLM-E

Obsolete

SSOP-24

565AQ

260

REEL

1000

PLL Frequency Synthesizer

Serial

8000

150

2.7

3.6

-40

Price N/A

LC72121V-TLM-E

Obsolete

SSOP-24

565AQ

260

REEL

1000

PLL Frequency Synthesizer

Serial

8000

150

2.7

3.6

-40

Price N/A

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Audio ASSP | LC72121V

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