sy89828l Micrel Semiconductor, sy89828l Datasheet - Page 11

• Manufacturer Part Number: sy89828l
• Description: Sy89828l 3.3v 1ghz Dual 1 10 Precision Lvds Fanout Buffer/translator With 2 1 Input Mux
• Manufacturer: Micrel Semiconductor

MicreL, Inc.
specifies a small swing of 350mV typical, on a nominal
1.25V common mode above ground. The common mode
voltage has tight limits to permit large variations in ground
M9999-012208
[e-mail] or [phone]
LVPECL/LVDS INPUTS
LVDS OUTPUTS
LVDS stands for Low Voltage Differential Swing. LVDS
/Q
Q
OUT
OUT
Figure 3. LVDS Differential Measurement
Figure 1. Simplified LVPECL Input Stage
Figure 5. Output Driver Signal Levels
/LVPECL_CLK
LVPECL_CLK
(Single-Ended)
v
OH
GND
5k
, v
GND
OL
V
CC
v
OH
5k
v
, v
OD
OL
100Ω
350mV
(typical)
11
between an LVDS driver and receiver. Also, change in
common mode voltage, as a function of data input, is also
kept tight, to keep EMI low.
/Q
Q
OUT
OUT
Figure 4. LVDS Common Mode Measurement
Figure 2. Simplified LVDS Input Stage
Figure 6. Output Driver Signal Levels
LVDS_CLK
/LVDS_CLK
1.9k
(Differential)
100Ω
1.4k
50Ω, ±1%
50Ω, ±1%
GND
V
CC
1.4k
750mV
Q
OUT
1.9k
GND
Precision Edge
– /Q
v
∆v
OCM
OCM
OUT
SY89828L
,
®