MAX9404 Maxim, MAX9404 Datasheet - Page 7

• Manufacturer Part Number: MAX9404
• Description: The MAX9401/MAX9404 are extremely fast and low-skew quad ECL/PECL differential buffers/receivers for data and clock signals
• Manufacturer: Maxim

Figure 3. Input and Output Voltage Definitions
Figure 4. IN to OUT Propagation Delay Timing Diagram
Ensure that the output currents do not exceed the cur-
rent limits as specified in the Absolute Maximum
Ratings. Under all operating conditions, the device’s
total thermal limits should be observed.
Adequate power-supply bypassing is necessary to
maximize the performance and noise immunity. Bypass
V
0.1µF and 0.01µF capacitors as close to the device as
CC
to V
EE
with high-frequency surface-mount ceramic
V
OUT_ - OUT_
V
CC
EE
OUT_
OUT_
_______________________________________________________________________________________
IN_
IN_
V
V
ID
ID
DIFFERENTIAL OUTPUT
WAVEFORM
Power-Supply Bypassing
INPUT VOLTAGE DEFINITION
V
V
ID
ID
20%
= 0
= 0
t
PLH1
t
R
80%
Quad ECL/PECL Differential
V
V
V
V
IHD
ILD
IHD
ILD
V
IHD
(MAX)
(MIN)
(MAX)
(MIN)
- V
ILD
V
V
V
possible, with the 0.01µF capacitor closest to the
device pins. Use multiple bypass vias for connection to
minimize inductance.
Input and output trace characteristics affect the perfor-
mance of the MAX9401/MAX9404. Connect each of the
inputs and outputs to a 50Ω characteristic impedance
trace. Avoid discontinuities in differential impedance
and maximize common-mode noise immunity by main-
OH
OH
OH
- V
- V
- V
V
OH
OL
OL
OL
- V
OL
OUTPUT VOLTAGE DEFINITION
Buffers/Receivers
80%
t
PHL1
t
F
20%
V
OCM
(SEL = HIGH, EN = HIGH)
Circuit Board Traces
V
V
OH
OL
V
V
CC
EE
7