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MK2771-16 - VCXO AND SET-TOP CLOCK SOURCE

General Description

The MK2771-16 is a low-cost, low-jitter, high-performance VCXO and clock synthesizer designed for set-top boxes.

The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3 V input voltage to cause the output clocks to vary by ±100 ppm.

Key Features

  • Packaged in 28-pin QSOP.
  • RoHS 5 (green) or RoHS 6 (green and lead free) compliant package.
  • On-chip patented VCXO with pull range of 200 ppm.
  • VCXO tuning voltage of 0 to 3 V.
  • Processor frequencies include 16.66, 20, 25, 32, 40, and 50 MHz.
  • Audio clocks support 32 kHz, 44.1 kHz, 48 kHz, and 96 kHz sampling rates.
  • Zero ppm synthesis error in all clocks (all exactly track 27 MHz VCXO).
  • Uses an inexpensive 13.5 MHz pullable crys.

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Datasheet Details

Part number MK2771-16
Manufacturer Renesas
File Size 340.90 KB
Description VCXO AND SET-TOP CLOCK SOURCE
Datasheet download datasheet MK2771-16 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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VCXO AND SET-TOP CLOCK SOURCE DATASHEET MK2771-16 Description The MK2771-16 is a low-cost, low-jitter, high-performance VCXO and clock synthesizer designed for set-top boxes. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3 V input voltage to cause the output clocks to vary by ±100 ppm. Using IDT’s patented VCXO and analog Phase-Locked Loop (PLL) techniques, the device uses an inexpensive 13.5 MHz pullable crystal input to produce multiple output clocks including two selectable processor clocks, a selectable audio clock, two communications clocks, a 13.5 MHz clock, and three 27 MHz clocks. All clocks are frequency locked to the 27 MHz output (and to each other) with zero ppm error, so any output can be used as the VCXO output.