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LC72121


Part Number LC72121
Manufacturer Sanyo Semicon Device
Title PLL Frequency Synthesizers
Description Pin name Pin No. LC72121 1 22 LC72121M LC72121V Type Function Equivalent circuit XIN XOUT 1 24 Xtal • Crystal oscillator element connectio...
Features the improved input sensitivity and lower spurious radiation (provided by a redesigned ground system) required in high-performance AM/FM tuners.
• 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...

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LC72121M : Pin name Pin No. LC72121 1 22 LC72121M LC72121V Type Function Equivalent circuit XIN XOUT 1 24 Xtal • Crystal oscillator element connections (4.5 or 7.2 MHz) • FMIN is selected when DVS in the serial data is set to 1. • Input frequency: 10 to 160 MHz FMIN 16 17 Local oscillator signal input • The signal is passed through an internal divide-by-two prescaler and then input to the swallow counter. • The divisor can be set to a value in the range 272 to 65535. Since the internal divide-by-two prescaler is used, the actual divisor will be twice the set value. • AMIN is selected when DVS in the serial data is set to 0. • When SNS in the serial data is set to 1: • Input frequency: 2 to 40 .

LC72121MA : Ordering number : ENA2009 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 divisi.

LC72121V : Pin name Pin No. LC72121 1 22 LC72121M LC72121V Type Function Equivalent circuit XIN XOUT 1 24 Xtal • Crystal oscillator element connections (4.5 or 7.2 MHz) • FMIN is selected when DVS in the serial data is set to 1. • Input frequency: 10 to 160 MHz FMIN 16 17 Local oscillator signal input • The signal is passed through an internal divide-by-two prescaler and then input to the swallow counter. • The divisor can be set to a value in the range 272 to 65535. Since the internal divide-by-two prescaler is used, the actual divisor will be twice the set value. • AMIN is selected when DVS in the serial data is set to 0. • When SNS in the serial data is set to 1: • Input frequency: 2 to 40 .

LC72122V : Symbol Pin No. Type Functions Circuit configuration XIN XOUT 19 20 Xtal • Crystal oscillator connections (75 kHz) FMIN 12 Local oscillator signal input • FMIN is selected when the serial data input DVS bit is set to 1. • The input frequency range is from 10 to 250 MHz. • The input signal passes through the internal divide-bytwo prescaler and is input to the swallow counter. • The divisor can be in the range 272 to 65535. However, since the signal has passed through the divide-by-two prescaler, the actual divisor is twice the set value. AMIN 11 Local oscillator signal input • AMIN is selected when the serial data input DVS bit is set to 0. • When the serial data input SNS bit is .




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