Micrel, Inc.
2.5V/3.3V/5V 1:2 DIFFERENTIAL
PECL/LVPECL/ECL
FANOUT BUFFER
SY10EP11U
SY100EP11U
ECL Pro™
SY10EP11U
ECL Pro™
SY100EP11U
FEATURES
■
2.5V, 3.3V and 5V power supply options
■
Guaranteed AC parameters over temperature:
• f
MAX
> 3.0GHz
• < 20ps output-to-output skew
• < 200ps t
r
/ t
f
• < 300ps propagation delay
■
Wide temperature range: –40
°
C to +85
°
C
■
Available in 8-pin (3mm) MSOP and SOIC packages
ECL Pro™
DESCRIPTION
The SY10/100EP11U is a precision, high-speed 1:2
differential fanout buffer. Having within-device skews and
output transition times significantly improved over the
EL11V, the EP11U is ideally suited for those applications
which require the ultimate in AC performance.
The differential inputs of the EP11U employ clamping
circuitry to maintain stability under open input conditions.
If the inputs are left open, the Q outputs will go LOW.
CROSS REFERENCE TABLE
Micrel Semiconductor
SY10EP11UZI/KI
SY10EP11UZI/KI
SY100EP11UZI/KI
SY100EP11UZI/KI
ON Semiconductor
MC10EP11D/DT
MC10LVEP11D/DT
MC100EP11D/DT
MC100LVEP11D/DT
PIN NAMES
Pin
D
Function
PECL, LVPECL, ECL, LVECL Clock or Data Input:
Internal 75kΩ pulldown resistor. If left floating,
pin defaults LOW, Q
OUT
goes LOW.
PECL, LVPECL, ECL, LVECL complementary
Clock or Data Input: Internal 75kΩ pull-up and
down resistors. If left open, default is V
CC
/2. When
the input is not used, it can be left open.
PECL, LVPECL, ECL, LVECL Outputs:
Terminates to V
CC
–2V.
Positive Power Supply: Bypass with 0.1µF//0.01µF
low ESR capacitors.
Negative Power Supply: For PECL operation,
connect to GND.
/D
Q0, /Q0
Q1, /Q1
V
CC
V
EE
ECL Pro is a trademark of Micrel, Inc.
M9999-111606
hbwhelp@micrel.com or (408) 955-1690
Rev.: D
Amendment: /0
November 2005
1
Issue Date:
MICREL [ MICREL SEMICONDUCTOR ]
