The SY89825U is a High Performance Bus Clock Driver with 22 differential LVPECL output pairs. This part is designed for use in low voltage (2.5V, 3.3V) applications which require a large number of outputs to drive precisely aligned, ultra low skew signals to their destination. The input is multiplexed from either LVDS or LVPECL by the CLK_SEL pin. The LVDS input includes a 100Ω internal termination, thus eliminating the need for external termination. The Output Enable (OE) is synchronous so that the outputs will only be enabled/disabled when they are already in the LOW state. This eliminates any chance of generating a runt clock pulse when the device is enabled/ disabled as can happen with an asynchronous control.The SY89825U features low pin-to-pin skew (35ps max.) --performance previously unachievable in a standard product having such a high number of outputs. The SY89825U is available in a single space saving package which provides a lower overall cost solution. In addition, a single chip solution improves timing budgets by eliminating the multiple device solution with their corresponding large part-to-part skew.
Additional Features
LVPECL or LVDS input to 22 LVPECL outputs
100K ECL compatible outputs
LVDS input includes 100Ω termination
Guaranteed AC parameters over voltage:
>2GHz fMAX (toggle)
<35ps max. ch-ch skew
Low voltage operation: 2.5V, 3.3V
Temperature range: -40°C to +85°C
Output enable pin
Available in a 64-Pin EPAD-TQFP
The SY89825U is a High Performance Bus Clock Driver with 22 differential LVPECL output pairs. This part is designed for use in low voltage (2.5V, 3.3V) applications which require a large number of outputs to drive precisely aligned, ultra low skew signals to their destination. The input is multiplexed from either LVDS or LVPECL by the CLK_SEL pin. The LVDS input includes a 100Ω internal termination, thus eliminating the need for external termination. The Output Enable (OE) is synchronous so that the outputs will only be enabled/disabled when they are already in the LOW state. This eliminates any chance of generating a runt clock pulse when the device is enabled/ disabled as can happen with an asynchronous control.The SY89825U features low pin-to-pin skew (35ps max.) --performance previously unachievable in a standard product having such a high number of outputs. The SY89825U is available in a single space saving package which provides a lower overall cost solution. In addition, a single chip solution improves timing budgets by eliminating the multiple device solution with their corresponding large part-to-part skew.
Additional Features
- LVPECL or LVDS input to 22 LVPECL outputs
- 100K ECL compatible outputs
- LVDS input includes 100Ω termination
- Guaranteed AC parameters over voltage:
- <35ps max. ch-ch skew
- Low voltage operation: 2.5V, 3.3V
- Temperature range: -40°C to +85°C
- Output enable pin
- Available in a 64-Pin EPAD-TQFP
