SY100EP195V_06 Datasheet, PDF (1/18 Pages) Micrel Semiconductor – 3.3V/5V 2.5GHz PROGRAMMABLE DELAY

Micrel, Inc.
3.3V/5V 2.5GHz
PROGRAMMABLE DELAY
ECL Pro®
E^SC^YL¹⁰⁰P^Er^Po¹Â®^95V
SY100EP195V
FEATURES
■ Pin-for-pin, plug-in compatible to the ON
Semiconductor MC100EP195
■ Maximum frequency > 2.5GHz
■ Programmable range: 2.2ns to 12.2ns
■ 10ps increments
■ 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
ECL Pro®
DESCRIPTION
The SY100EP195V 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 SY100EP195V. The 10-bit width of this
latched control register allows for delay increments of
approximately 10ps.
An eleventh control bit allows the cascading of multiple
SY100EP195V devices, for a wider delay range. Each
additional SY100EP195V 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.
APPLICATIONS
■ Clock de-skewing
■ Timing adjustment
■ Aperture centering
CROSS REFERENCE TABLE
Micrel Semiconductor
SY100EP195VTI
SY100EP195VTITR
ON Semiconductor
MC100EP195FA
MC100EP195FAR2
TYPICAL APPLICATIONS CIRCUIT
Data Signal
of Unknown Phase
CLOCK+
CLOCK–
SY100EP195V
IN
Q
/IN
/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]
TYPICAL PERFORMANCE
12000
Delay vs. Tap
10000
8000
6000
4000
2000
0
0 200 400 600 800 1000 1200
TAP (DIGITAL WORD)
Rev.: D Amendment: /0
1
Issue Date: December 2005