MK3724数据手册集成电路（IC）的时钟发生器PLL频率合成器规格书PDF

描述 Description

The MK3724 is a low cost, low jitter, high performance VCXO and PLL clock synthesizer designed to replace expensive discrete VCXOs and multipliers. The patented on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to cause the output clocks to vary by ±115 ppm. Using IDT's analog/digital Phase-Locked Loop (PLL) techniques, the device uses an inexpensive 27 MHz pullable crystal input to produce a reference output and a selectable audio clock. IDT manufactures the largest variety of VCXO based timing devices for all applications. Consult IDT to eliminate VCXOs, crystals, and oscillators from your board. The frequency of the on-chip VCXO is adjusted by an external control voltage connected to VIN. Because VIN is a high impedance input, it can be driven directly from an PWM RC integrator circuit.

特性 Features

Packaged in 16-pin TSSOP
Pb free packaging
Replaces a VCXO and oscillator
Operating voltage of 3.3 V
Provides output of 27 MHz plus audio clock
Uses an inexpensive 27 MHz pullable crystal
On-chip patented VCXO with pull range of 230 ppm (minimum)
VCXO tuning voltage of 0 to 3.3 V
Advanced, low power, sub-micron CMOS process
Industrial temperature range available
For other standard audio frequencies see the MK3722