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SY58020U Datasheet(PDF) 2 Page - Micrel Semiconductor

Part No. SY58020U
Description  6GHz, 1:4 CML FANOUT BUFFER/TRANSLATOR WITH INTERNAL I/O TERMINATION
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
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SY58020U Datasheet(HTML) 2 Page - Micrel Semiconductor

   
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2
Precision Edge®
SY58020U
Micrel, Inc.
M9999-020207
hbwhelp@micrel.com or (408) 955-1690
PACKAGE/ORDERING INFORMATION
Pin Number
Pin Name
Pin Function
1, 4
IN, /IN
Differential Input: This input pair receives the signal to be buffered. Each pin of this pair
internally terminates with 50
Ω to the V
T pin. Note that this input will default to an
indeterminate state if left open. See
“Input Interface Applications” section.
2
VT
Input Termination Center-Tap: Each input terminates to this pin. The V
T pin provides a
center-tap for each input (IN, /IN) to the termination network for maximum interface
flexibility. See
“Input Interface Applications” section.
3
VREF-AC
Reference Output Voltage: This output biases to V
CC –1.2V. It is used when AC-coupling
to differential inputs. Connect VREF-AC directly to the VT pin. Bypass with 0.01µF low ESR
capacitor to VCC. See “Input Interface Applications” section.
8, 13
VCC
Positive Power Supply: Bypass with 0.1
µF//0.01µF low ESR capacitors as close to the
pins as possible.
5, 16
GND,
Ground. Exposed pad must be connected to a ground plane that is the same potential
Exposed Pad
as the ground pin.
14, 15
/Q0, Q0,
CML Differential Output Pairs: Differential buffered output copy of the input signal. The
11, 12
/Q1, Q1,
output swing is typically 400mV into 50
Ω load. Normally terminate CML output pairs with
9, 10
/Q2, Q2,
100
Ω across Q and /Q outputs at the receiving end. Unused output pairs may be left
6, 7
/Q3, Q3,
floating with no impact on jitter or skew. See
“CML Output Termination” section.
PIN DESCRIPTION
13
14
15
16
12
11
10
9
1
2
3
4
8
7
6
5
IN
VT
VREF-AC
/IN
Q1
/Q1
Q2
/Q2
16-Pin MLF® (MLF-16)
Ordering Information(1)
Package
Operating
Package
Lead
Part Number
Type
Range
Marking
Finish
SY58020UMI
MLF-16
Industrial
020U
Sn-Pb
SY58020UMITR(2)
MLF-16
Industrial
020U
Sn-Pb
SY58020UMG(3)
MLF-16
Industrial
020U with
Pb-Free
Pb-Free bar-line indicator
NiPdAu
SY58020UMGTR(2, 3)
MLF-16
Industrial
020U with
Pb-Free
Pb-Free bar-line indicator
NiPdAu
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
A = 25°C, DC electricals only.
2. Tape and Reel.
3. Pb-Free package recommended for new designs.


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