sy84402l Micrel Semiconductor, sy84402l Datasheet - Page 2

• Manufacturer Part Number: sy84402l
• Description: 4.25gbps Vcsel Driver
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
Ordering Information
Pin Configuration
Pin Description
Truth Table
H: High
October 2009
Number
IN
H
H
X
X
2, 3
8, 7
L
L
Pin
10
1
4
5
6
9
Note:
1. Pb-Free package is recommended for new designs.
Part Number
SY84402LMGTR
/IN
H
H
Exposed Pad
X
X
L
L
OUT, /OUT
Pin Name
VCTRL
IN, /IN
L: Low
GND
VCC
POL
/EN
VT
/EN
(1)
H
H
L
L
L
L
X: Don’t care
Pin Function
GND and Exposed pad must be tied to most negative supply. For LVPECL connect to ground.
Differential input. Both pins are internally terminated with 50Ω to VT. Refer to “Interface driver input to
different logic drivers” section for more details.
Reference Voltage. Refer to “Interface driver input to different logic drivers” section for proper
termination.
Active Low TTL. The driver is enabled when this pin is unconnected or /EN asserted low. The driver is
disabled when /EN is asserted high. Pulled down internally with 75kΩ resistor. The polarity of the
output in disabled state is inverted when POL is exerted high. Refer to the truth table for details.
TTL input, Pulled down internally with 75kΩ resistor. Asserting this pin high will invert output polarity of
the input data. If this pin is asserted low or left open, the polarity is kept unchanged. Refer to the truth
table for more details.
Differential Outputs: Variable swing PECL output pair defaults to undetermined state if inputs left open.
See “Typical application” section for recommendations on terminations.
Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors.
Control Voltage Input: Variable voltage input to control output swings with VCTRL = V
swing and VCTRL = V
POL
H
H
H
L
L
L
Package
MLF-10
Type
OUT
H
H
H
L
L
L
10-Pin MLF
Operating
CC
Industrial
Range
-1.42V for maximum swing
/OUT
H
H
H
L
L
L
®
(2mm x 2mm) (MLF-10)
2
402L with Pb-Free bar-line indicator
Package Marking
[e-mail]
Pb-Free NiPdAu
Lead Finish
CC
for minimum
or [phone]
M9999-102909-A
SY84402L