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LC72121 - PLL Frequency Synthesizers

Datasheet Summary

Description

Pin name Pin No.

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

Features

  • e frequency, and a low level is output when that frequency is lower. This pin goes to the highimpedance state when the frequencies match. AIN AOUT 19 20 20 21 Low-pass filter.
  • Connections for the MOS transistor used for the PLL active low-pass amplifier filter. transistor IFIN 12 13 IF counter.
  • The input frequency range is 0.4 to 12 MHz.
  • The signal is passed directly to the IF counter.
  • The result is output, MSB first, through the DO.

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Datasheet preview – LC72121

Datasheet Details

Part number LC72121
Manufacturer Sanyo Semicon Device
File Size 379.55 KB
Description PLL Frequency Synthesizers
Datasheet download datasheet LC72121 Datasheet
Additional preview pages of the LC72121 datasheet.

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Full PDF Text Transcription

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Ordering number : EN*5815A CMOS IC LC72121, 72121M, 72121V PLL Frequency Synthesizers for Electronic Tuning Preliminary Overview The LC72121 and the LC72121M and the LC72121V are high input sensitivity (20 mVrms at 130 MHz) PLL frequency synthesizers for 3 V systems. These ICs are serial data (CCB) 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. • 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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