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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
SYMBOL
CONDITIONS
DISABLE Input Resistance
RPULL Internal pullup resistor
3-WIRE DIGITAL I/O SPECIFICATIONS (SDA, SCL, CSEL)
Input High Voltage
VIH
Input Low Voltage
VIL
Input Hysteresis
VHYST
Input Leakage Current
IIL, IIH
VIN = 0V or VCC, internal pullup or pull-
down is 75kI typical
Output High Voltage
VOH External pullup is (4.7kI to 10kI) to VCC
Output Low Voltage
VOL External pullup is (4.7kI to 10kI) to VCC
3-WIRE DIGITAL INTERFACE TIMING CHARACTERISTICS (Figure 5)
SCL Clock Frequency
fSCL
SCL Pulse-Width High
tCH
SCL Pulse-Width Low
tCL
SDA Setup Time
tDS
SDA Hold Time
tDH
SCL Rise to SDA Propagation
Time
tD
CSEL Pulse-Width Low
CSEL Leading Time Before the
First SCL Edge
tCSW
tL
CSEL Trailing Time After the Last
SCL Edge
tT
SDA, SCL Load
CB
Total bus capacitance on one line with
4.7kI pullup to VCC
MIN TYP
4.7
7.5
2.0
80
VCC - 0.5
400
0.5
0.5
100
100
5
500
500
500
MAX UNITS
10
kI
VCC
V
0.8
V
mV
150
FA
V
0.4
V
1000 kHz
Fs
Fs
ns
ns
ns
ns
ns
ns
20
pF
Note 1: Guaranteed by design and characterization (TA = -40NC to +95NC).
Note 2: BIAS is connected to 2.0V. TOUT+/TOUT- are connected through pullup inductors to a separate supply that is equal to VCCT.
ICC = 4.92 + 0.0383 x IBIAS + 0.3692 x IMOD
Note 3: Stability is defined as [(I_measured) - (I_reference)]/(I_reference) over the listed current range, temperature, and VCC =
VCCREF Q5%. VCCREF = 3.0V to 3.45V. Reference current measured at VCCREF, TA = +25NC.
Note 4: Measured with K28.5 data pattern at 10.7Gbps and with a (27 - 1 PRBS + 72 zeros + 27 - 1 PRBS (inverted) + 72 ones)
pattern at 11.3Gbps.
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