描述 Description

The ICS552-01 produces 8 low-skew copies of the multiple input clock or fundamental, parallel-mode crystal. Unlike other clock drivers, these parts do not require a separate oscillator for the input. Using ICS’ patented Phase-Locked Loop (PLL) to multiply the input frequency, it is ideal for generating and distributing multiple high-frequency clocks. This is a single chip used for 3 different applications:1) ICS552-01 (A mode) — an Oscillator mutilpier
2) ICS552-01 (B mode) — a Dual 1:4 buffer
3) ICS552-01 (C mode) — a 1:8 Oscillator bufferFeatures (all)
? Packaged as 20-pin SSOP (QSOP)
? Pb-free packaging available
? Operating voltages of 3.0 V to 5.5 V
? Industrial temperature availableFeatures (specific)
ICS552-01 (for A mode)
? Contains on-chip multiplier with selections of x1,
?? x1.33, x2, x2.66, x3, x3.33, x4, x4.66, x5, and x6
? Power-down and Tri-state modesICS552-01 (for B mode)
? Up to 200 MHz clock input/output at 3.3 V
? Low skew of 250 ps maximum for any bank of four
? Inputs can be connected together for a 1 to 8 buffer
?? with 250 ps skew between any outputs
? Non-inverting buffer mode
? Ideal for clock networks
? Output Enable mode tri-states outputs
? Full CMOS output swing with 25 mA output drive
?? capability at TTL levels
? Advanced, low power, sub-micron CMOSprocessICS552-01 (for C mode)
? Use with 25 MHz crystal for networking
? Use with 27 MHz crystal for MPEGICS552-01 (for A and C modes)
? Input frequency of 10.0 to 27.0 MHz
? Provides 8 low-skew outputs (<250 ps)
? Output clock duty cycle of 40/60 at 3.3 V