MAX3982UTE+ Fast Delivery |IC PHOENIX CO.,LIMITED

MAX3982UTE+ ,SFP Copper-Cable Preemphasis DriverApplicationsSFP Active Copper-Cable Assemblies Ordering InformationBackplanesTEMP PIN- PKGPARTRANGE ..
MAX3983UGK+D ,Quad Copper-Cable Signal ConditionerApplicationsOutput Disable4x InfiniBand (4 x 2.5Gbps)Ordering Information10Gbase-CX4 Ethernet (4 x ..
MAX3984UTE+ ,1Gbps to 10Gbps Preemphasis Driver with Receive EqualizerApplicationsTEMP PKG PART PIN-PACKAGE8.5Gbps Fibre Channel Active Cable AssembliesRANGE CODE10.3Gbp ..
MAX398CSE ,Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog MultiplexersELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, V = V = +2.4V, V = ..
MAX398CSE ,Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog MultiplexersMAX398/MAX39919-0299; Rev. 2; 7/96Precision, 8-Channel/Dual 4-Channel,Low-Voltage, CMOS Analog Mult ..
MAX398CSE+ ,Precision, 8-Channel/Dual 4-Channel, Low-Voltage, CMOS Analog MultiplexersApplicationsMAX398CGE 0°C to +70°C 16 QFN-EP* G1655-3Sample-and-Hold CircuitsMAX398CEE 0°C to +70°C ..
MAX748AEWE+ ,3.3V, Step-Down, Current-Mode PWM DC-DC ConvertersApplicationsMAX748AC/D 0°C to +70°C Dice*5V-to-3.3V ConvertersMAX748AEPA -40°C to +85°C 8 Plastic D ..
MAX748AEWE+T ,3.3V, Step-Down, Current-Mode PWM DC-DC ConvertersMAX748A/MAX763A19-0190; Rev 0; 9/933.3V, Step-Dow n,Current-Mode PWM DC-DC Converters______________ ..
MAX749 ,Digitally Adjustable LCD Bias SupplyApplications______________Ordering InformationNotebook ComputersPART TEMP. RANGE PIN-PACKAGELaptop ..
MAX7490EEE ,Dual Universal Switched-Capacitor FiltersFeaturesThe MAX7490/MAX7491 consist of two identical low- Dual 2nd-Order Filter in a 16-Pin QSOP P ..
MAX7490EEE+ ,Dual Universal Switched-Capacitor FiltersFeaturesThe MAX7490/MAX7491 consist of two identical low-♦ Dual 2nd-Order Filter in a 16-Pin QSOP P ..
MAX7490EEE+ ,Dual Universal Switched-Capacitor FiltersApplicationsPIN-PART TEMP RANGE VOLTAGETunable Active FiltersPACKAGE(+V)Multipole FiltersMAX7490CEE ..

MAX3982UTE+
SFP Copper-Cable Preemphasis Driver
General Description
The MAX3982 is a single-channel, copper-cable preem-
phasis driver that operates from 1Gbps to 4.25Gbps. It
provides compensation for copper links, such as
4.25Gbps Fibre Channel, allowing spans of up to 15m
with 24AWG. The cable driver provides four selectable
preemphasis levels. The input compensates for up to
10in of FR4 circuit board material at 4.25Gbps.
The MAX3982 also features SFP-compliant loss-of-signal
detection with selectable sensitivity and TX_DISABLE.
Selectable output swing reduces EMI and power con-
sumption. It is packaged in a 3mm x 3mm, 16-pin thin
QFN and operates from 0°C to +85°C temperature range.
Applications
SFP Active Copper-Cable Assemblies
Backplanes
1.0625Gbps, 2.125Gbps, and 4.25Gbps Fibre
Channel
1.25Gbps Ethernet
2.488Gbps STM16
InfiniBand
PCI Express
FeaturesDrives Up to 15m with 24AWG CableDrives Up to 30in of FR40.25W Total Power with +3.3V SupplySelectable 1600mVP-P or 1200mVP-PDifferential
Output SwingSelectable Output PreemphasisFixed Input EqualizationLoss-of-Signal Detection with Selectable
SensitivityTransmit Disable
MAX3982
SFP Copper-Cable Preemphasis Driver
Ordering Information
19-3354; Rev 2; 2/06
EVALUATION KIT
AVAILABLE
PARTTEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX3982UTE0°C to +85°C16 Thin QFNT1633-4
MAX3982UTE+0°C to +85°C16 Thin QFNT1633-4
MAX3982
+3.3V
TX_DISABLE
PE0
PE1
LOSLEV
IN+
OUTLEV
IN-
LOS
OUT+
OUT-
0.01μF
0.01μF
VCC OR
GND
SWITCH OR
SERDES
TX+
TX-
4.25Gbps LIMITING
AMPLIFIER
+3.3V
OUT+
OUT-
IN+
IN-
LOS
0.01μF
0.01μFRX+
RX-
≤ 5V
≥4.7kΩ
VCC
GND
VCC
GND
4.25Gbps LIMITING
AMPLIFIER
+3.3V
TX_DISABLE
PE0
PE1
LOSLEV
IN+
OUTLEV
IN-
LOS
OUT+
OUT-
0.01μF
0.01μF
0.01μF
0.01μF
MAX3982
+3.3V
OUT+
OUT-
IN+
IN-
LOS
0.01μF
0.01μF
0.01μF
0.01μF
VCC
GND
VCC
GND
SWITCH OR
SERDES
RX+
RX-
TX+
TX-
DISK
ENCLOSURE
FABRIC SWITCH
VCC OR
GND
≤ 5V
≥ 4.7kΩ
COPPER-CABLE
DIFFERENTIAL 100Ω TWIN-AX
SFP ACTIVE CABLE ASSEMBLY
≤ 15m (24AWG)
UP TO 4.25Gbps
Typical Application Circuit
Pin Configuration appears at end of data sheet.
+Denotes lead-free package.
MAX3982
SFP Copper-Cable Preemphasis Driver
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= +3.0V to +3.6V, TA= 0°C to +85°C. Typical values are at TA= +25°C and VCC= +3.3V, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage, VCC..............................................-0.5V to +6.0V
Continuous CML Output Current
at OUT+, OUT-..............................................-25mA to +25mA
Voltage at IN+, IN-, LOSLEV, LOS,
TX_DISABLE, PE0, PE1, OUTLEV..........-0.5V to (VCC+ 0.5V)
LOS Open Collector Supply Voltage
with ≥4.7kΩPullup Resistor..............................-0.5V to +5.5V
Continuous Power Dissipation at +85°C
(derate 20.8mW/°C above +85°C).................................1.35W
Operating Junction Temperature Range (TJ)....-55C°to +150°C
Storage Ambient Temperature Range (TS).......-55C°to +150°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply CurrentTX_DISABLE=low7597mA
Inrush CurrentCurrent beyond steady-state current10mA
Power-On-Reset DelaytPOR140ms
OPERATING CONDITIONS
Supply VoltageVCC3.03.33.6V
Supply-Noise Tolerance1MHz ≤ f < 2GHz40mVP-P
Operating Ambient TemperatureTA02585°C
Bit RateNRZ data (Note 1)1.04.25Gbps
CIDConsecutive identical digits (bits) (Note 1)10Bits
CONTROL INPUTS: TX_DISABLE, PE0, PE1, OUTLEV, LOSLEV
Voltage, Logic HighVIH2.0V
Voltage, Logic LowVIL0.8V
Current, Logic HighIIHVIH = VCC + 0.5V-150µA
Current, Logic LowIILVIL = 0.8V350µA
STATUS OUTPUT: LOS
LOS asserted025µA
LOS unasserted, VOL ≤ 0.4V with 4.7kΩ
pullup resistor, pullup supply = 5.5V1.0mALOS Open Collector Current Sink
VCC = 0V, pullup supply = 5.5V, external
pullup resistor ≥ 4.7kΩ025µA
LOSLEV = high (Note 1)100mVP-PLOS Assert LevelLOSLEV = low (Note 1)50mVP-P
LOSLEV = high (Note 1)300mVP-PLOS Deassert LevelLOSLEV = low (Note 1)120mVP-P
LOSLEV = high (Note 1)20mVP-PLOS HysteresisLOSLEV = low (Note 1)4mVP-P
LOS Response Time
Time from IN dropping below assert level,
or rising above deassert level to 50% point
of LOSµs
LOS Transition TimeRise-time or fall-time (10% to 90%), external
pullup resistor = 4.7kΩ250ns
MAX3982
SFP Copper-Cable Preemphasis Driver
Note 1:Guaranteed by design and characterization.
Note 2:PE1 = PE0 = 1 for maximum preemphasis, load is 50Ω±1% at each side, and the pattern is 0000011111 at 1Gbps.
Note 3:Measured at point B in Figure2 using 0000011111 at 1Gbps. PE1 = PE0 = 0 for minimum preemphasis. For transition time,
the 0% reference level is the steady-state level after four zeros, just before the transition. The 100% reference level is the
maximum voltage of the transition.
Note 4:Tested with CJTPAT, as well as this pattern: 19 zeros, 1, 10 zeros, 1010101010 (D21.5 character), 1100000101 (K28.5+
character), 19 ones, 0, 10 ones, 0101010101 (D10.2 character), 0011111010 (K28.5 character).
Note 5:Cables are unequalized, Amphenol Spectra-Strip 24AWG. Residual deterministic jitter is the difference between the source
jitter at point A, and load jitter at point D in Figure2. The deterministic jitter at the output of the transmission line must be
from media-induced loss and not from clock-source modulation.
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +3.0V to +3.6V, TA= 0°C to +85°C. Typical values are at TA= +25°C and VCC= +3.3V, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
EQUALIZER AND CABLE DRIVER SPECIFICATIONS
Input SwingMeasured differentially at point A of Figure
2 (Note 1)6002000mVP-P
Input ResistanceMeasured differentially85100115Ω
Input Return Loss100MHz to 2GHz (Note 1)10dB
TX_DISABLE = low,
OUTLEV = high14501800
TX_DISABLE = low,
OUTLEV = low10001350Differential Output Swing
Measured
differentially at point
B of Figure 2
(Notes 1, 2)
TX_DISABLE = high40
mVP-P
Common-Mode Output
(OUT+) + (OUT-), measured at point B of
Figure 2; TX_DISABLE = low, OUTLEV =
high (Notes 1, 2)mVP-P
Output ResistanceOUT+ or OUT- to VCC, single ended425058Ω
Output Return Loss100MHz to 2GHz (Note 1)10dB
Output Transition Timetr, tf20% to 80% (Notes 1, 3)5080ps
Random Jitter(Notes 1, 3)1.6psRMS
PE1PE0248
Output PreemphasisSee Figure 114
Source to INOUT to LoadPE1PE0
1m, 24AWG00
5m, 24AWG01
10m, 24AWG10
Residual Output Deterministic
Jitter at 1.0625Gbps to
2.125Gbps (Notes 1, 4, 5)
6 mil
FR4 ≤ 10in
15m, 24AWG11
0.100.15UIP-P
Source to INOUT to LoadPE1PE0
1m, 24AWG00
5m, 24AWG01
10m, 24AWG10
Residual Output Deterministic
Jitter at 4.25Gbps (Notes 1, 4, 5)6 mil
FR4 ≤ 10in
15m, 24AWG11
0.150.20UIP-P
MAX3982
SFP Copper-Cable Preemphasis Driver
Figure 1. Illustration of Tx Preemphasis in dB
Figure 2. Test Setup. The points labeled A, B, and D are referenced for AC parameter test conditions. Deterministic jitter and eye
diagrams measured at point D.
VLOW_PPVHIGH_PPdBV
HIGHPP
LOWPP) log_=⎛⎜⎜⎟⎟⎢⎥20
SIGNAL
SOURCE
1in ≤ L ≤ 10inOUT6 mil6 mil
L = 2in
PCBOARD (FR4)
6 mil
L ≤ 1in
OSCILLOSCOPE OR
ERROR DETECTOR
SMA CONNECTORS
24AWG 100Ω TWIN-AX
TEST SETUP
SMA CONNECTORS
FR4
4.0 ≤ εR ≤ 4.4
tan δ = 0.022
MAX3982
MAX3982
SFP Copper-Cable Preemphasis Driver
Figure 3. End-to-End Test Setup Using the MAX3748 as a Receiver. Deterministic jitter and eye diagrams measured at point D.
SIGNAL
SOURCE
1in ≤ L ≤ 12in
L ≤ 1inOUT6 mil6 mil
L = 2in
L ≤ 1in
PC BOARD (FR4)
OSCILLOSCOPE OR
ERROR DETECTOR
SMA CONNECTORS
24AWG 100Ω TWIN-AX
TEST SETUP
SMA CONNECTORS
FR4
4.0 ≤ εR ≤ 4.4
tan δ = 0.022
MAX3982
6 mil
22pF
22pF
39Ω
39Ω
OUTIN
MAX3748
Typical Operating Characteristics
(VCC= +3.3V, TA= +25°C, unless otherwise noted. PRBS7 + 100CID pattern is PRBS 27, 100 zeros, 1010, PRBS 27, 100 ones, 0101.)
TRANSIENT RESPONSE
MAX3982 toc01
A = 2dB, PE = 00
B = 4dB, PE = 01
C = 8dB, PE = 10
D = 14dB, PE = 11
4.25Gbps K28.7 PATTERN
OUTLEV = HIGH
END-TO-END DETERMINISTIC JITTER
vs. CABLE LENGTH AT 4.25Gbps
MAX3982 toc02
CABLE LENGTH (m)
DETERMINISTIC JITTER (UI)105
4.25Gbps PRBS7 + 100CIDPE[1,0] = 00
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
12in FR4 AT INPUT
USING MAX3748 AS
RECEIVER, AS SHOWN
IN FIGURE 3
END-TO-END DETERMINISTIC JITTER
vs. CABLE LENGTH AT 2.125Gbps
MAX3982 toc03
CABLE LENGTH (m)
DETERMINISTIC JITTER (UI)105
2.125Gbps PRBS7 + 100CID
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
12in FR4 AT INPUT
USING MAX3748 AS RECEIVER,
AS SHOWN IN FIGURE 3
PE[1,0] = 00
MAX3982
SFP Copper-Cable Preemphasis Driver
END-TO-END EYE DIAGRAM,
20m 24AWG CABLE AT 1.0625Gbps
MAX3982 toc06
1.0625Gbps PRBS7 + 100CID PATTERN,
0in FR4 AT INPUT, USING MAX3748
AS RECEIVER, AS SHOWN IN FIGURE 3
END-TO-END EYE DIAGRAM,
20m 24AWG CABLE AT 4.25Gbps
MAX3982 toc04
4.25Gbps PRBS7 + 100CID PATTERN,
0in FR4 AT INPUT, USING MAX3748
AS RECEIVER, AS SHOWN IN FIGURE 3
END-TO-END EYE DIAGRAM,
20m 24AWG CABLE AT 2.125Gbps
MAX3982 toc05
2.125Gbps PRBS7 + 100CID PATTERN,
0in FR4 AT INPUT, USING MAX3748
AS RECEIVER, AS SHOWN IN FIGURE 3
END-TO-END DETERMINISTIC JITTER
vs. CABLE LENGTH AT 1.0625Gbps
MAX3982 toc07
CABLE LENGTH (m)
DETERMINISTIC JITTER (UI)105
1.0625Gbps PRBS7 + 100CID
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
12in FR4 AT INPUT
USING MAX3748 AS RECEIVER,
AS SHOWN IN FIGURE 3
PE[1,0] = 00
VERTICAL EYE OPENING
vs. CABLE LENGTH WITH OUTLEV = LOW
MAX3982 toc08
CABLE LENGTH (m)
VERTICAL EYE OPENING (mV
P-P5
PE[1,0] = 00
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
4.25Gbps PRBS7 + 100CID
VERTICAL EYE OPENING
vs. CABLE LENGTH WITH OUTLEV = LOW
MAX3982 toc09
CABLE LENGTH (m)
VERTICAL EYE OPENING (mV
P-P5
PE[1,0] = 00
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
4.25Gbps PRBS7 + 100CID
INPUT RETURN LOSS vs. FREQUENCY
MAX3982 toc10
FREQUENCY (MHz)
DIFFERENTIAL S11 (dB)
10010,000
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR, COUPLING
CAPACITOR, AND 1cm TRACE
Typical Operating Characteristics (continued)
(VCC= +3.3V, TA= +25°C, unless otherwise noted. PRBS7 + 100CID pattern is PRBS 27, 100 zeros, 1010, PRBS 27, 100 ones, 0101.)
MAX3982
SFP Copper-Cable Preemphasis Driver
15m 24AWG CABLE ASSEMBLY
OUTPUT WITHOUT MAX3982,
4.25Gbps CJTPAT
MAX3982 toc11
15m 24AWG CABLE ASSEMBLY
OUTPUT WITH MAX3982
PREEMPHASIS, 4.25Gbps CJTPAT
MAX3982 toc12
PREEMPHASIS, PE[1,0] = 11, OUTLEV = HIGH
40mV/div
DETERMINISTIC JITTER
vs. CABLE LENGTH
MAX3982 toc13
CABLE LENGTH (m)
DETERMINISTIC JITTER (UI)5
4.25Gbps
PRBS7 + 100CIDPE[1,0] = 00
PE[1,0] = 01
PE[1,0] = 10
PE[1,0] = 11
15m 24AWG CABLE ASSEMBLY
OUTPUT WITHOUT MAX3982,
4.25Gbps PRBS7 + 100CID
MAX3982 toc14
15m 24AWG CABLE ASSEMBLY
OUTPUT WITH MAX3982
PREEMPHASIS, 4.25Gbps PRBS7 + 100CID
MAX3982 toc15
PREEMPHASIS, PE[1,0] = 11, OUTLEV = HIGH
40mV/div
OUTPUT RETURN LOSS
vs. FREQUENCY
MAX3982 toc16
FREQUENCY (MHz)
DIFFERENTIAL S22 (dB)
10010,000
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR, COUPLING
CAPACITOR, AND 1cm TRACEypical Operating Characteristics (continued)
(VCC= +3.3V, TA= +25°C, unless otherwise noted. PRBS7 + 100CID pattern is PRBS 27, 100 zeros, 1010, PRBS 27, 100 ones, 0101.)
MAX3982
SFP Copper-Cable Preemphasis Driver
15m 24AWG CABLE ASSEMBLY
OUTPUT WITHOUT MAX3982,
4.25Gbps PRBS31
MAX3982 toc17
15m 24AWG CABLE ASSEMBLY
OUTPUT WITH MAX3982
PREEMPHASIS, 4.25Gbps PRBS31
MAX3982 toc18
PREEMPHASIS, PE[1,0] = 11, OUTLEV = HIGH
40mV/div
HOT-PLUG WITH TX_DISABLE LOW
MAX3982 toc19
10ms/div
TX_DISABLE
VCC
OUT+
3.3V
LOW
tPOR = 27ms
30in FR4 OUTPUT
WITHOUT MAX3982,
4.25Gbps CJTPAT
MAX3982 toc20
30in FR4 OUTPUT
WITH MAX3982 PREEMPHASIS,
4.25Gbps CJTPAT
MAX3982 toc21
PREEMPHASIS, PE[1,0] = 10,
OUTLEV = HIGH
100mV/div
DETERMINISTIC JITTER
vs. FR4 LENGTH
MAX3982 toc22
FR4 LENGTH (in)
DETERMINISTIC JITTER (UI)302010
4.25Gbps PRBS7
DRIVING FR4 AT OUT+ AND
OUT-, NO FR4 AT INPUT
PE[1,0] = 01
PE[1,0] = 10PE[1,0] = 11
PE[1,0] = 00ypical Operating Characteristics (continued)
(VCC= +3.3V, TA= +25°C, unless otherwise noted. PRBS7 + 100CID pattern is PRBS 27, 100 zeros, 1010, PRBS 27, 100 ones, 0101.)

Partno	Mfg	Dc	Qty	Available	Descript
MAX3982UTE+	MAXIM	N/a	3400	avai	SFP Copper-Cable Preemphasis Driver