sy56011r Micrel Semiconductor, sy56011r Datasheet - Page 3

• Manufacturer Part Number: sy56011r
• Description: Low Voltage 1.2v/1.8v/2.5v Cml 1 2 Fanout Buffer 6.4gbps With Equalization
• Manufacturer: Micrel Semiconductor

Pin Description
Micrel, Inc.
July 2008
Pin Number
4,5,15,16
12,11
8,13
10,9
1,2
14
3
6
7
Exposed pad
Pin Name
Q0, /Q0
Q1, /Q1
IN, /IN
VCCO
GND,
VCC
EQ
NC
VT
Pin Function
Differential Input: Signals as small as 200mV V
27 inches 6mil FR4 stripline transmission line are then terminated with this differential input.
Each input pin internally terminates with 50Ω to the VT pin.
Input Termination Center-Tap: Each side of the differential input pair terminates to VT pin.
This pin provides a center-tap to a termination network for maximum interface flexibility. An
internal high impedance resistor divider biases VT to allow input AC-coupling. For AC-
coupling, bypass VT with 0.1µF low ESR capacitor to V
subsection and Figure 2a.
Three level input for equalization control. High, float, low.
Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the V
pins as possible. Supplies input and core circuitry.
Output Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the V
possible. Supplies the output buffers.
Ground: Exposed pad must be connected to a ground plane that is the same potential as the
ground pins.
CML Differential Output Pairs: Differential buffered copy of the input signal. The output swing
is typically 390mV. See “Interface Applications” subsection for termination information.
No connect pins
3
PK
(400mV
[e-mail]
CC
. See “Interface Applications”
PP
) applied to the input of 9, 18 or
or [phone]
M9999-070208-A
CCO
SY56011R
pins as
CC