The SY89207L is a differential receiver amplifier optimized for crystal oscillator applications. The device includes an additional low differential gain (+10V/V) output stage (QFB) ideal for feedback applications common in crystal oscillator gain blocks. The SY89207L is fully differential, with a bandwidth > 800MHz over temperature and voltage. For applications that require output disable control, a LVPECL/LVECL/CMOS compatible enable pin (EN) will force the differential output into a fixed logic state. The SY89207L also includes a VBB reference voltage for single-ended or AC-coupled applications. The SY89207L PECL logic is 100k ECL compatible. Operation is guaranteed over the 40C to +85C temperature range and 3.3V nominal supply voltage range. All support documentation can be found on Micrel's web site at www.micrel.com.