Clock Generator 32-Pin TQFP EP

The MAX9450 clock generators provide high-precision clocks for timing in SONET/SDH systems or Gigabit Ethernet systems. The MAX9450 can also provide clocks for the highspeed and high-resolution ADCs and DACs in 3G base stations. Additionally, the devices can also be used as a jitter attenuator for generating high-precision CLK signals. The MAX9450 feature an integrated VCXO. This configuration eliminates the use of an external VCXO and provides a cost-effective solution for generating high-precision clocks. The MAX9450 feature two differential inputs and clock outputs. The inputs accept LVPECL, LVDS, differential signals, and LVCMOS. The input reference clocks range from 8kHz to 500MHz.

• Integrated VCXO Provides a Cost-Effective Solution for High-Precision Clocks
• 8kHz to 500MHz Input Frequency Range
• 15MHz to 160MHz Output Frequency Range
• I2C or SPI Programming for the Input and Output Frequency Selection
• PLL Lock Range > ±60ppm
• Two Differential Outputs with Three Types of Signaling: LVPECL, LVDS, or HSTL
• Input Clock Monitor with Hitless Switch
• Internal Holdover Function within ±20ppm of the Nominal Frequency
• Low Output CLK Jitter: < 0.8ps RMS in the 12kHz to 20MHz Band
• Low Phase Noise > -130dBc at 100kHz, > -140dBc at 1MHz