SY89312V Datasheet, PDF (1/6 Pages) Micrel Semiconductor – 3.3V/5V, 4GHz PECL/ECL ÷ 2 CLOCK GENERATOR

Micrel, Inc.
3.3V/5V, 4GHz PECL/ECL
÷ 2 CLOCK GENERATOR
Precision Edge^®
Precision E^Sd^Yg⁸⁹e^3®12V
SY89312V
FEATURES
s Guaranteed AC performance over temperature and
voltage:
• > 4GHz f_MAX input
• < 160ps t_r/t_f
• < 440ps t_pd
s 3.3V and 5V power supply operation
s 100k ECL/PECL compatible I/O
s Internal 75KΩ input pull-down resistors
s Wide operating temperature range: –40°C to +85°C
s Available in ultra-small 8-pin MLF^® (2mm x 2mm)
package
DESCRIPTION
Precision Edge^®
The SY89312V is an integrated ÷2 divider with differential
clock inputs. It is functionally equivalent to the SY100EP32V
but in an ultra-small 8-lead MLF^® package that features a
70% smaller footprint.
The V_BB pin, an internally generated voltage supply, is
available for this device only. For single-ended input
conditions, the unused differential input is connected to VBB
as a switching reference voltage. V_BB may also bias
AC-coupled inputs. When used, decouple V_BB and V_CC via
a 0.01µF capacitor and limit current sourcing or sinking to
0.5mA. When not used, V_BB should be left open.
The reset pin is asynchronous and is asserted when it is
high. Upon power-up, the internal flip-flops will be in a
random state; the reset allows for the synchronous use of
multiple SY89312Vs in a system.
TRUTH TABLE⁽¹⁾
CLK
/CLK
RESET
Q
/Q
X
X
H
L
H
L
F
F
Note:
1. F = Divide by 2 function
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-051006
[e-mail] or [phone]
1
Rev.: C Amendment: /0
Issue Date: May 2006