Low Phase-Noise, Low-Power Programmable PhiClock Generator

The 9FGV1004 is a member of IDT"s PhiClock™ programmable clock generator family. The 9FGV1004 provides 1 copy each of 2 integer-related frequencies, 2 copies of a fractional or spread-spectrum frequency and two copies of the crystal reference input. Two select pins allow for hardware selection of the desired configuration, or two I2 C bits all easy software selection of the desired configuration. The user may configure any one of the four OTP configurations as the default when operating in I2 C mode. Four unique I2 C addresses are available, allowing easy I2 C access to multiple components.

• 1.8V to 3.3V core VDD and VDDREF
• Individual 1.8V to 3.3V VDDO for each output pair
• Supports HCSL, LVDS and LVCMOS I/O standards
• Supports LVPECL and CML logic with easy AC coupling – see application note AN-891 for alternate terminations
• HCSL utilizes IDT"s LP-HCSL technology for improved performance, lower power and higher integration: — Programmable output impedance of 85 or 100?
• On-board OTP supports up to 4 complete configurations
• Configuration selected via strapping pins or I2 C
• < 125mW at 1.8V, < 230mW at 3.3V with outputs running at 100MHz
• 4 programmable I2 C addresses: D0/D1, D2/D3, D4/D5, D6/D7 read/write
• Programmable spread spectrum modulation frequency and amount
• Supported by IDT Timing Commander software
• Space saving 4 × 4 mm 24-VFQFPN