sy56216r Micrel Semiconductor, sy56216r Datasheet - Page 3

• Manufacturer Part Number: sy56216r
• Description: Low Voltage 1.2v/1.8v/2.5v Cml Dual Channel Buffer 4.5ghz/6.4gbps With Equalization
• Manufacturer: Micrel Semiconductor

Pin Description
Micrel, Inc.
September 2008
Pin Number
12,11
10,9
16,1
15,6
8,13
4,5
2,3
14
7
Exposed pad
Pin Name
EQ0, EQ1
VT0, VT1
IN0, /IN0
IN1, /IN1
Q0, /Q0
Q1, /Q1
VCCO
GND,
VCC
Pin Function
Differential Inputs: Signals as small as 200mVpk (400mV
9, 18 or 27 inches 6 mil FR4 stripline transmission line are then terminated the
differential input . Each input pin internally terminates with 50_ to the VT pin.
Input Termination Center-Tap: Each side of the differential input pair terminates to a
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 0.01µF low ESR capacitor to
VCC. See “Interface Applications” subsection and Figure 2a.
Three level inputs for equalization control. Low, Float, High
Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to
the V
Output Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the V
pins as 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.
CC
pins as possible. Supplies input and core circuitry.
3
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PP
) applied to the input of
or [phone]
M9999-093008-A
CCO
SY56216R