SY100EP111U_11 Datasheet, PDF (1/9 Pages) Micrel Semiconductor – 2.5V/3.3V 1:10 DIFFERENTIAL LVPECL/LVECL/HSTL CLOCK DRIVER

Micrel, Inc.
2.5V/3.3V 1:10 DIFFERENTIAL
Precision Edge^®
Precisio^Sn^Y1E⁰d^0Eg^Pe^1®11U
LVPECL/LVECL/HSTL CLOCK DRIVER ^SY100EP111U
FEATURES
■ 2.5V and 3.3V power supply options
■ Guaranteed AC parameters over temperature:
• f_MAX = 3GHz
• < 25ps output-to-output skew
• < 250ps t_r / t_f
• < 400ps propagation delay
■ Wide temperature range: –40°C to +85°C
■ Differential design
■ V_BB output for single-ended input applications
■ Fully compatible with industry standard 100K I/O
levels
■ Available in 32-pin TQFP package
BLOCK DIAGRAM
Q₀
/Q₀
Q₁
/Q₁
Q₂
/Q₂
Q₃
CLK0
/Q₃
V_EE
75kΩ
0
Q₄
/CLK0
75kΩ 75kΩ
/Q₄
V_EE V_CC
Q₅
CLK1
/Q₅
V_EE
75kΩ
1
Q₆
/CLK1
75kΩ 75kΩ
/Q₆
V_EE V_CC
Q₇
/Q₇
CLK_SEL
75kΩ
Q₈
V_EE
/Q₈
V_BB
Q₉
/Q₉
DESCRIPTION
Precision Edge^®
The SY100EP111U is a high-speed, low skew 1-to-10
differential fanout buffer designed for clock distribution in
new, high-performance systems. The internal 2:1 mux
allows the input to select between two differential clock
sources.
The device is specifically designed for low skew. The
interconnect scheme and metal layout are carefully
optimized for minimal gate-to-gate skew within the device.
Wafer characterization and process control ensure
consistent distribution of propagation delay from lot to lot.
The V_BB output is intended for use as a reference
voltage for single-ended reception of ECL signals to that
device only. When using V_BB for this purpose, it is
recommended that V_BB is decoupled to V_CC via a 0.01µF
capacitor.
Precision Edge is a registered trademark of Micrel, Inc.
M9999-021511
[e-mail] or [phone]
1
Rev.: F Amendment: /0
Issue Date: December 2005