SY89207L Datasheet, PDF (1/6 Pages) Micrel Semiconductor – 3.3V 800MHz PRECISION PECL AMPLIFIER WITH LOW-GAIN FEEDBACK

Micrel, Inc.
3.3V 800MHz PRECISION PECL
AMPLIFIER WITH LOW-GAIN
FEEDBACK
Precision Edge^®
Precision E^Sd^Y8g⁹e^2®07L
SY89207L
s 3.0V to 3.8V power supply option
s Guaranteed AC parameters over temperature:
• f_MAX = 800MHz
• < 200ps differential propagation delay (D to Q_FB)
• < 730ps differential propagation delay (D to Q_HG)
• < 250ps t_r / t_f
s Low-gain feedback path Q_FB = +10V/V
s V_BB reference output voltage
s Wide temperature range: –40°C to +85°C
s Available in 10-pin (3mm × 3mm) MSOP
s LVPECL/LVECL/CMOS compatible EN option
APPLICATIONS
s Oscillator timing modules
Precision Edge^®
DESCRIPTION
The SY89207L is a differential receiver amplifier optimized
for crystal oscillator applications. The device includes an
additional low differential gain (+10V/V) output stage (Q_FB)
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 V_BB
reference voltage for single-ended or AC-coupled applications.
The SY89207L PECL logic is 100k ECL compatible.
Operation is guaranteed over the –40°C to +85°C temperature
range and 3.3V nominal supply voltage range.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
BLOCK DIAGRAM
Q_FB
/Q_FB
D
/D
V_BB
EN
LEN Q
LATCH
D
V_CC
Q_HG
/Q_HG
V_EE
Precision Edge is a registered trademark of Micrel, Inc.
M9999-051805
[e-mail] or [phone]
1
Rev.: B Amendment: /0
Issue Date: May 2005