The ICS97ULP844A is a 1.8V low-power wide-range frequency clock driver that can be used for DDR2 memory modules or zero delay board fan out. It features a low skew, low jitter PLL clock driver, 1 to 4 differential clock distribution (SSTL_18), feedback pins for input to output synchronization, spread spectrum tolerant inputs, and auto PD when input signal is at a certain logic state.
The ICS97ULP844A is a low-skew, low-jitter PLL clock driver designed for DDR2 memory modules and zero-delay board fan-out applications. It distributes a differential clock input pair to four differential clock outputs and one feedback clock output. The device operates from 0°C to 70°C and features auto power-down when input signals are at a logic low state. It supports spread spectrum clocking to reduce EMI and includes a 28-ball BGA package option.
| Supply Voltage | 1.8V nominal |
|---|---|
| Operating Temperature | 0°C to 70°C |
| Package Type | 28-Ball BGA |
| Clock Outputs | 4 differential pairs (CLKT[0:3], CLKC[0:3]) and 1 feedback pair (FB_OUTT, FB_OUTC) |
| Jitter | Period jitter: 40ps, Half-period jitter: 60ps |
| Skew | Output - Output skew: 40ps |
| Powerdown Feature | Auto PD when input signal is at a certain logic state |
The device is characterized for operation from 0°C to 70°C.
The device is available in a 28-ball BGA package.
The device is designed for a 1.8V nominal supply voltage.
The maximum clock frequency is 370 MHz.