SY89313V Datasheet, PDF (1/6 Pages) Micrel Semiconductor – 3.3V/5V, 4GHz PECL/ECL ÷ 4 CLOCK GENERATOR

Micrel, Inc.
3.3V/5V, 4GHz PECL/ECL
÷ 4 CLOCK GENERATOR
Precision Edge^®
Precision E^Sd^Yg⁸⁹e^3®13V
SY89313V
FEATURES
s Guaranteed AC performance over temperature and
voltage
• > 4GHz f_MAX input frequency
• < 240ps t_r/t_f
• < 500ps T_PD
s 3.3V and 5V power supply operation
s 100k ECL/PECL compatible I/O
s Wide operating temperature range: –40°C to +85°C
s Available in ultra-small 8-pin MLF^® (2mm × 2mm)
package
Precision Edge^®
DESCRIPTION
The SY89313V is a differential ECL/PECL integrated ÷4
divider clock generator. It is functionally equivalent to the
SY100EP33V 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 V_BB
as a switching reference voltage. V_BB may also re-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 on the
rising edge. Upon power-up, the internal flip-flops will be in
a random state; the reset allows for the synchronous use of
multiple SY89313V’s in a system.
PIN CONFIGURATION/BLOCK DIAGRAM
TRUTH TABLE⁽¹⁾
RESET 1
CLK 2
/CLK 3
VBB 4
8 VCC
R
7Q
÷4
6 /Q
5 VEE
TOP VIEW
8-Pin MLF®
Ultra-Small Outline (2mm x 2mm)
CLK
/CLK
RESET
Q
/Q
X
X
Z
L
H
L
F
F
Note:
1. = LOW-to-HIGH transition
= HIGH-to-LOW transition
F = Divide by 4 function
Precision Edge is a 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