MAX3967 データシートの表示（PDF） - Maxim Integrated
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MAX3967 Datasheet PDF : 14 Pages
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270Mbps SFP LED Driver
AC ELECTRICAL CHARACTERISTICS
(Load as specified in Figure 1, unless otherwise noted. VCC = +2.97V to +5.5V (at the VCC pins), RMODSET = 1kΩ, TA = -40°C to
+85°C. Input data edge speed = 1ns (typ), PB1 = PB2 = VEE, PB3 = open. Typical values are at VCC = +3.3V, TC connected to
TCNOM, TA = +25°C.) (Note 5)
PARAMETER
Data Input Range
Output-Current Edge Speed
SYMBOL
CONDITIONS
MIN TYP
Differential input
500
20% to 80%, input is a 12.5MHz square wave 300 615
Output-Current Pulse-Width
Note 6
-80
Correction (PWC)
Output-Current Data-Dependent
Jitter
266Mbps (Note 7)
DJ
155Mbps (Note 8)
140
150
Random Jitter
RJ
3
TX_DISABLE Assert Time
t_off Time from rising edge of TX_DISABLE to
0.01
output at 10% of steady state
TX_DISABLE Negate Time
t_on Time from rising edge of TX_DISABLE to
0.01
output at 90% of steady state
Power-On Time
t_init Time from VCC > 2.97V to output at 90% of
0.1
steady state
Note 5: AC characteristics are guaranteed by design and characterization.
Note 6: PWC = (widthCURRENT ON - widthCURRENT OFF) / 2.
Note 7: Test pattern is a K28.5 (0011 1110 1011 0000 0101) transmitted at 266Mbps.
Note 8: Test pattern is equivanlent to a 213 - 1 PRBS containing 72 consecutive zeros or 72 consecutive ones.
MAX
2400
1230
UNITS
mVP-P
ps
ps
250
psP-P
psRMS
0.5
µs
0.5
µs
2
ms
VCC
OUT-
VLED
1.55V
VCC
VPREBIAS
OUT+
OUT-
OUT+
MAX3967
MAX3967
VCC
L1
OUT-
FERRITE
BEAD
0.1µF
MAX3967
5Ω
0.1µF
OSCILLOSCOPE
50Ω
50Ω
OUT+
SWITCHING DIODE
DC ELECTRICAL LOAD
(EXCEPT PREBIAS VOLTAGE)
DC ELECTRICAL LOAD
FOR PREBIAS VOLTAGE
Figure 1. MAX3967 Output Test Loads
AC ELECTRICAL LOAD
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