MK3724

• Packaged in 16-pin TSSOP
• Available in 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

Stresses above the ratings listed below can cause permanent damage to the MK3724. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical parameters are guaranteed only over the recommended operating temperature range.

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 ICS' analog/digital Phase-Locked Loop (PLL) techniques, the MK3724 uses an inexpensive 27 MHz pullable crystal input to produce a reference output and a selectable audio clock.

ICS MK3724 manufactures the largest variety of VCXO based timing devices for all applications. Consult ICS to eliminate VCXOs, crystals, and oscillators from your board.

The frequency of the on-chip VCXO of MK3724 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.