SY89295U_06 Datasheet, PDF (1/15 Pages) Micrel Semiconductor – 2.5V/3.3V 1.5GHz PRECISION LVPECL PROGRAMMABLE DELAY

Micrel, Inc.
2.5V/3.3V 1.5GHz PRECISION
LVPECL PROGRAMMABLE DELAY
Precision Edge^®
Precision E^Sd^Y8g⁹e^2®95U
SY89295U
FEATURES
s Precision LVPECL programmable delay line
s Guaranteed AC performance over temperature and
voltage:
• > 1.5GHz f_MAX
• < 160ps rise/fall times
s Low-jitter design:
• < 10ps_PP total jitter
• < 2ps_RMS cycle-to-cycle jitter
• < 1ps_RMS random jitter
s Programmable delay range: 3.2ns to 14.8ns in 10ps
increments
s Increased monotonicity over the MIC100EP195
s ±10% of LSB INL
s V_BB output reference voltage
s Parallel inputs accepts LVPECL or CMOS/LVTTL
s Low voltage operation: 2.5V ±5% and 3.3V ±10%
s Industrial –40°C to +85°C temperature range
s Available in 32-pin (5mm × 5mm) MLF™ and 32-pin
TQFP packages
APPLICATIONS
s Clock de-skewing
s Timing adjustments
s Aperture centering
Precision Edge^®
DESCRIPTION
The SY89295U is a programmable delay line that delays
the input signal using a digital control signal. The delay can
vary from 3.2ns to 14.8ns in 10ps increments. In addition,
the input signal is LVPECL, uses either a 2.5V ±5% or 3.3V
±10% power supply, and is guaranteed over the full industrial
temperature range (–40°C to +85°C).
The delay varies in discrete steps based on a control
word. The control word is 10-bits long and controls the
delay in 10ps increments. The eleventh bit is D[10] and is
used to simultaneously cascade the SY89295U which allows
for a larger delay range. In addition, the input pins IN and
/IN default to an equivalent low state when left floating.
Further, for maximum flexibility, the control register interface
accepts CMOS or TTL level signals.
For applications that requires an analog delay input, see
the SY89296L which is a programmable delay chip with
fine tune control. The SY89295U and SY89296U are part
of Micrel’s high-speed, Precision Edge^® product line.
All support documentation can be found on Micrel’s
website at www.micrel.com.
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
M9999-011806
[e-mail] or [phone]
1
Rev.: C Amendment: /0
Issue Date: January 2006