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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 IDT’s

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 mutiplier

2) ICS552-01 (B mode) — a Dual 1:4 buffer

3) ICS552-01 (C mode) — a 1:8 Oscillator buffer

Features (all)

? Packaged as 20-pin SSOP (QSOP)

? Pb-free packaging

? Operating voltages of 3.0 V to 5.5 V

? Industrial temperature available

Features (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

Block Diagram (ICS552-01—A mode)

? Power-down and Tri-state modes

ICS552-01 (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 CMOS process

ICS552-01 (for C mode)

? Use with 25 MHz crystal for networking

? Use with 27 MHz crystal for MPEG

ICS552-01 (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