SY100EP196V Datasheet, PDF (1/18 Pages) Micrel Semiconductor – 3.3V/5V 2.5GHz PROGRAMMABLE DELAY WITH FINE TUNE CONTROL

Micrel, Inc.
3.3V/5V 2.5GHz PROGRAMMABLE
DELAY WITH FINE TUNE CONTROL
ECL Pro®
E^SC^YL¹⁰P^0Er^Po¹Â®^96V
SY100EP196V
FEATURES
■ Pin-for-pin, plug-in compatible to the ON
Semiconductor MC100EP196
■ Maximum frequency > 2.5GHz
■ Programmable range: 2.2ns to 12.2ns
■ 10ps increments
■ 30ps fine tuning range
■ PECL mode operating range: V_CC = 3.0V to 5.5V
with V_EE = 0V
■ NECL mode operating range: V_CC = 0V
with V_EE = –3.0V to –5.5V
■ Open input default state
■ Safety clamp on inputs
■ A logic high on the /EN pin will force Q to logic low
■ D[0:10] can accept either ECL, CMOS, or TTL inputs
■ V_BB output reference voltage
■ Available in a 32-pin TQFP package
APPLICATIONS
ECL Pro®
DESCRIPTION
The SY100EP196V is a programmable delay line, varying
the time a logic signal takes to traverse from IN to Q. This
delay can vary from about 2.2ns to about 12.2ns. The input
can be PECL, LVPECL, NECL, or LVNECL.
The delay varies in discrete steps based on a control
word presented to SY100EP196V. The 10-bit width of this
latched control register allows for delay increments of
approximately 10ps. In addition, delay may be varied
continuously in about a 30ps range by setting the voltage at
the FTUNE pin.
An eleventh control bit allows the cascading of multiple
SY100EP196V devices, for a wider delay range. Each
additional SY100EP196V effectively doubles the delay range
available.
For maximum flexibility, the control register interface
accepts CMOS or TTL level signals, as well as the input
level at the IN± pins.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
CROSS REFERENCE TABLE
■ Clock de-skewing
■ Timing adjustment
■ Aperture centering
Micrel Semiconductor
SY100EP196VTI
SY100EP196VTITR
ON Semiconductor
MC100EP196FA
MC100EP196FAR2
TYPICAL APPLICATIONS CIRCUIT
TYPICAL PERFORMANCE
Data Signal
of Unknown Phase
CLOCK+
CLOCK–
Fine Tune Voltage
SY100EP196V
IN
Q
/IN
FTUNE /Q
D[9:0]
CONTROL
LOGIC
D
Q+
Flip-Flop
CK
Q–
ECL Pro is a registered trademark of Micrel, Inc.
M9999-120505
[e-mail] or [phone]
1
12000
Delay vs. Tap
10000
8000
6000
4000
2000
0
0 200 400 600 800 1000 1200
TAP (DIGITAL WORD)
Rev.: D Amendment: /0
Issue Date: December 2005