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MAX3946_10 データシートの表示(PDF) - Maxim Integrated

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MAX3946_10 1.0625Gbps to 11.3Gbps, SFP+ Laser Driver with Laser Impedance Mismatch Tolerance MaximIC
Maxim Integrated MaximIC
MAX3946_10 Datasheet PDF : 28 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
1.0625Gbps to 11.3Gbps, SFP+ Laser Driver
with Laser Impedance Mismatch Tolerance
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.85V to +3.63V, TA = -40°C to +85°C, and Figure 1. Guaranteed by design and characterization from TA = -40°C to +95°C.
Typical values are at VCC = +3.3V, IBIAS = 60mA, IMOD = 40mA, 25I differential output load, and TA = +25°C, unless otherwise
noted.) (Note 1)
PARAMETER
Bias Current DAC Stability
Instantaneous Compliance
Voltage at BIAS
BMON Current Gain
Compliance Voltage at BMON
BMON Current Gain Stability
LASER MODULATOR
TOUT+ and TOUT-
Instantaneous Output
Compliance Voltage
SYMBOL
CONDITIONS
5mA P IBIAS P 80mA, VBIAS = VCC - 1.5V
(Notes 1, 3)
MIN TYP MAX UNITS
1
3
%
VBIAS
0.9
1.5
2.1
V
GBMON
GBMON = IBMON/IBIAS, external resistor to
ground defines voltage
9
0
5mA P IBIAS P 80mA (Notes 1, 3)
10
11
mA/A
1.8
V
1.2
4
%
VCC -
1.0
VCC +
1.0
V
Maximum Modulation Current
Current into external 25I differential termi-
nation, output common-mode
80
voltage = VCC
IMODMAX
Current into external 50I differential termi-
nation, output common-mode
60
voltage = VCC
Minimum Modulation Current
Differential Output Resistance
IMODMIN
2 x ROUT
Current between TOUT+ and TOUT- when
Modulation-Off Maximum Current IMOD-OFF DISABLE = high or TX_EN = low or
SET_IMOD = H0x00
Modulation Current DAC Stability
Modulation Current Edge Speed
(Note 1)
tR, tF
10mA P IMOD P 80mA (Notes 1, 3)
20% to 80%, 20mA P IMOD P 80mA
20% to 80%, 10mA P IMOD P 80mA,
TXDE_MD[1:0] = 3d
10mA P IMOD P 60mA, 11.3Gbps, output
differential load = 50I
Deterministic Jitter (Notes 1, 4)
10mA P IMOD P 80mA, 11.3Gbps, output
differential load = 25I
DJ
10mA P IMOD P 80mA, 11.3Gbps, output
differential load = 5I
10mA P IMOD P 60mA, 10.7Gbps, output
differential load = 50I (K28.5 pattern)
Random Jitter
RJ
10mA P IMOD P 80mA, output differential
load = 25I (Note 1)
Differential Output Return Loss
Part powered on, f P 5GHz
SDD22
Part powered on, f P 10GHz
mAP-P
10
mAP-P
50
I
100
FA
1.5
3
%
22
30
ps
22
30
5
12
5
12
psP-P
7
5
10.5
0.19
8
6
0.55 psRMS
dB
_______________________________________________________________________________________   3
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