MAX3983UGK+D Fast Delivery |IC PHOENIX CO.,LIMITED

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 ..
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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 ..
MAX398CSE+T ,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 ..
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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 ..
MAX7491 ,Dual Universal Switched-Capacitor FiltersApplicationsPIN-PART TEMP RANGE VOLTAGETunable Active FiltersPACKAGE(+V)Multipole FiltersMAX7490CEE ..

MAX3983UGK+D
Quad Copper-Cable Signal Conditioner
General Description
The MAX3983 is a quad copper-cable signal conditioner
that operates from 2.5Gbps to 3.2Gbps. It provides com-
pensation for 4x copper InfiniBand and 10Gbase-CX4
Ethernet links, allowing spans of 20m with 24AWG and
15m with 28AWG. The cable driver section provides four
selectable preemphasis levels. The input to the cable
driver compensates for up to 0.5m of FR4 circuit board
material. The cable receiver section provides additional
fixed input equalization while offering selectable preem-
phasis to drive FR4 circuit boards up to 0.5m.
The MAX3983 also features signal detection on all eight
inputs and internal loopback that allows for diagnostic
testing. It is packaged in a 10mm x 10mm, 68-pin QFN
and operates from 0°C to +85°C.
Applications
4x InfiniBand (4 x 2.5Gbps)
10Gbase-CX4 Ethernet (4 x 3.125Gbps)
10G Fibre Channel XAUI (4 x 3.1875Gbps)
4x Copper-Cable or Backplane Transmission
(1Gbps to 3.2Gbps)
FeaturesLink Features
Span 20m with 24AWG, 15m with 28AWG
Span 0.5m of FR4 on Each Host
1.6W Total Power with 3.3V Supply
Loopback FunctionCable Driver Features
Selectable Output Preemphasis
FR4 Input Equalization
Signal Detect for Each Channel
Output DisableCable Receiver Features
Selectable FR4 Output Preemphasis
Cable Input Equalization
Signal Detect for Each Channel
Output Disable
MAX3983
Quad Copper-Cable Signal Conditioner
MAX3983
RX_SD1
RX_SD2
RX_SD3
RX_SD4
TX_SD1
TX_SD2
TX_SD3
TX_SD4
TX_OUT1
TX_OUT2
TX_OUT3
TX_OUT4
RX_IN1
RX_IN2
RX_IN3
RX_IN4
TX_IN1
TX_IN2
TX_IN3
TX_IN4
RX_OUT1
RX_OUT2
RX_OUT3
RX_OUT4
4.7kΩ4.7kΩ
3V TO 5.5V3V TO 5.5V
TO HOST
TX_ENABLE
RX_ENABLE
TX_PE0
RX_PE
TX_PE1
SERDES
≤0.5m
VCC[1:4]
3.3V
GND
POR
LOOPBACKTO HOST
0.01μF0.01μF
TO MAX3983
4x COPPER CABLE ASSEMBLY
≤20m (24AWG)
≤15m (28AWG)
VCC OR
GND
CPOR
Typical Application Circuit
Ordering Information
19-2928; Rev 1; 2/07
EVALUATION KIT
AVAILABLE
PARTTEMP RANGEPIN-
PACKAGEPKG CODE
MAX3983UGK 0°C to +85°C 68 QFN G6800-4
MAX3983UGK+ 0°C to +85°C 68 QFN G6800-4
Pin Configuration appears at end of data sheet.+Denotes lead-free package.
MAX3983
Quad Copper-Cable Signal Conditioner
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= +3.0V to +3.6V, TA= 0°C to +85°C. Typical values are at VCC= +3.3V and TA= +25°C, 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
TX_OUT[1:4]±, RX_OUT[1:4]±..........................……….±25mA
Voltage at TX_IN[1:4]±, RX_IN[1:4]±, RX_SD[1:4],
TX_SD[1:4], RX_ENABLE, TX_ENABLE, RX_PE,
TX_PE[0:1], LOOPBACK, POR
(with series resistor ≥4.7kΩ)...................-0.5V to (VCC+ 0.5V)
Continuous Power Dissipation (TA= +85°C)
68-Pin QFN (derate 41.7mW/°C above +85°C)………….2.7W
Operating Junction Temperature Range (TJ)....-55°C to +150°C
Storage Ambient Temperature Range (TS).......-55°C to +150°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
RX_EN = VCC, TX_EN = 0V360430
RX_EN = 0V, TX_EN = VCC365430Supply Current
RX_EN = VCC, TX_EN = VCC495580
OPERATING CONDITIONS
Supply VoltageVCC3.03.33.6V
Supply Noise Tolerance1MHz ≤ f < 2GHz40mVP-P
Operating Ambient TemperatureTA02585°C
Bit RateNRZ data (Note 1)2.53.2Gbps
CIDConsecutive identical digits (bits)10Bits
STATUS OUTPUTS: RX_SD[1:4], TX_SD[1:4]
Signal detect asserted025µA
Signal detect unasserted VOL ≤ 0.4V with 4.7kΩ
pullup resistor1.01.11mASignal-Detect Open-Collector
Current Sink
VCC = 0V, pullup supply = 5.5V, external pullup
resistor ≥4.7kΩ025µA
Signal-Detect Response Time
Time from RX_IN[1:4] or TX_IN[1:4] dropping
below 85mVP-P or rising above 175mVP-P to
50% point of signal detect
0.35µs
Signal-Detect Transition TimeRise time or fall time (10% to 90%)200ns
Power-On Reset Delay1µF capacitor on POR to GND6ms
CONTROL INPUTS: RX_ENABLE, TX_ENABLE, RX_PE, TX_PE0, TX_PE1, LOOPBACK
Voltage, Logic HighVIH1.5V
Voltage, Logic LowVIL0.5V
Current, Logic HighIIHVIH = VCC-150+150µA
Current, Logic LowIILVIL = 0V-150+150µA
MAX3983
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +3.0V to +3.6V, TA= 0°C to +85°C. Typical values are at VCC= +3.3V and TA= +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
TX SECTION (CABLE DRIVER)
PC Board Input SwingMeasured differentially at the signal source
(Note 1)8001600mVP-P
Input ResistanceTX_IN[1:4]+ to TX_IN[1:4]-, differential85100115Ω
Input Return Loss100MHz to 2GHz (Note 1)1017dB
TX_ENABLE = high (Notes 1, 2)130015001600Output SwingTX_ENABLE = low30mVP-P
Output ResistanceTX_OUT[1:4]+ or TX_OUT[1:4]- to VCC, single
ended425058Ω
Output Return Loss100MHz to 2GHz (Note 1)1013dB
Output Transition Timetr, tf20% to 80% (Notes 1, 3)80ps
Random Jitter(Notes 1, 3)1.6psRMS
TX_PE1TX_PE0369
Output PreemphasisSee Figure 112
Source to
TX_IN
TX_OUT to
LoadTX_PE1TX_PE0
1m, 28AWG00
5m, 28AWG01
10m, 24AWG10
Residual Output Deterministic
Jitter at 2.5Gbps (Notes 1, 4, 5)6-mil FR4 ≤
20in
15m, 24AWG11
0.100.15UIP-P
Source to
TX_IN
TX_OUT to
LoadTX_PE1TX_PE0
1m, 28AWG00
5m, 28AWG01
10m, 24AWG10
Residual Output Deterministic
Jitter at 3.2Gbps (Notes 1, 4, 5)6-mil FR4 ≤
20in
15m, 24AWG11
0.150.20UIP-P
Signal-Detect Assert LevelTX_IN for TX_SD = high (Note 6)800mVP-P
Signal-Detect OffTX_IN for TX_SD = low (Note 6)200mVP-P
RX SECTION (CABLE RECEIVER)
Cable Input SwingMeasured differentially at the signal source
(Note 1)10001600mVP-P
Input Vertical Eye OpeningMeasured differentially at the input of the
MAX3983 (Note 1)1751600mVP-P
Input ResistanceRX_IN[1:4]+ to RX_IN[1:4]-, differential85100115Ω
Input Return Loss100MHz to 2GHz (Note 1)1018dB
Quad Copper-Cable Signal Conditioner
MAX3983
Quad Copper-Cable Signal Conditioner
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +3.0V to +3.6V, TA= 0°C to +85°C. Typical values are at VCC= +3.3V and TA= +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
RX_ENABLE = high (Notes 1, 7)11001500Output SwingRX_ENABLE = low30mVP-P
Output ResistanceRX_OUT[1:4]+ or RX_OUT[1:4]- to VCC, single
ended425058Ω
Output Return Loss100MHz to 2GHz (Note 1)1015dB
Output Transition Timetr, tf20% to 80% (Notes 1, 8)4580ps
Random Jitter(Notes 1, 8)1.6psRMS
RX_PE = low3Output PreemphasisRX_PE = high6dB
Source to
RX_IN
RX_OUT to
LoadRX_PE
0in, 6-mil FR40
Residual Output Deterministic
Jitter at 2.5Gbps
(Notes 1, 5, 9, 10)
5m, 28AWG
IB Cable
Assembly
without
preemphasis20in, 6-mil FR41
0.100.15UIP-P
Source to
RX_IN
RX_OUT to
LoadRX_PE
0in, 6-mil FR40
Residual Output Deterministic
Jitter at 3.2Gbps
(Notes 1, 5, 9, 10)
5m, 28AWG
IB cable
assembly
without
preemphasis20in, 6-mil FR41
0.150.20UIP-P
Signal-Detect Assert LevelRX_IN for RX_SD = high (Note 11)175mVP-P
Signal-Detect OffRX_IN for RX_SD = low (Note 11)85mVP-P
END-TO-END JITTER (TX AND RX COMBINED PERFORMANCE)
Source to
TX_IN
TX_OUT to
RX_IN
TX_PE1TX_PE0
to
Load
RX_PE
1m, 24AWG000in0
15m, 24AWG1120in1
0.150.20Residual Output Deterministic
Jitter at 2.5Gbps
(Notes 1, 12, 13, 14)
6-mil FR4 ≤
20in20m, 24AWG1120in10.20.25
UIP-P
MAX3983
Quad Copper-Cable Signal Conditioner
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +3.0V to +3.6V, TA= 0°C to +85°C. Typical values are at VCC= +3.3V and TA= +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Source to
TX_IN
TX_OUT to RX_IN
TX_PE1TX_PE0
RX_OUT to Load
RX_PE
1m, 24AWG005in0
15m, 24AWG1120in1
0.200.25Residual Output Deterministic
Jitter at 3.2Gbps
(Notes 1, 12, 13, 14)
6-mil FR4 ≤
20 in20m, 24AWG1120in10.250.3
UIP-P
Note 1:Guaranteed by design and characterization.
Note 2:Measured with 2in of FR4 through InfiniBand connector with TX_PE1 = TX_PE0 =1.
Note 3:Measured at the chip using 0000011111 or equivalent pattern. TX_PE1 = TX_PE0 = 0 for minimum preemphasis.
Note 4:All channels under test are not transmitting during test. Channel tested with XAUI CJPAT, 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 and 28AWG or equivalent equipped with Fujitsu “MicroGiga”
connector or equivalent. All other channels are quiet. Residual deterministic jitter is the difference between the source jit-
ter and the output jitter at the load. The deterministic jitter (DJ) at the output of the transmission line must be from media-
induced loss and not from clock-source modulation. Depending upon the system environment, better results can be
achieved by selecting different preemphasis levels.
Note 6:Tested with a 1GHz sine wave applied at TX_IN under test with less than 5in of FR4.
Note 7:Measured with 3in of FR4 with RX_PE = 1.
Note 8:Measured at the chip using 0000011111 or equivalent pattern. RX_PE = low (minimum). Signal source is 1VP-Pwith 5m,
28AWG InfiniBand cable.
Note 9:All other receive channels are quiet. TX_ENABLE = 0. Channel tested with XAUI CJPAT 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 10:FR4 board material: 6-mil-wide, 100Ω, edge-coupled stripline (tanδ= 0.022, 4.0 < εR< 4.4).
Note 11:Tested with a 1GHz sine wave applied at RX_IN under test with less than 5in of FR4.
Note 12:Channel tested with XAUI CJPATas 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 13:Cables are unequalized, Amphenol Spectra-Strip 24AWG or equivalent equipped with Fujitsu “MicroGiga” connector or
equivalent. Residual deterministic jitter is the difference between the source jitter at point A and the load jitter at point B in
Figure 2. The deterministic jitter (DJ) at the output of the transmission line must be from media-induced loss and not from
clock-source modulation. Depending upon the system environment, better results can be achieved by selecting different
preemphasis levels.
Note 14:Valid with pattern generator deterministic jitter as high as 0.17UIP-P.
MAX3983
Quad Copper-Cable Signal Conditioner
PE = 12dBPE = 3dB
VEYE = 0.375VP-PVEYE = 1.06VP-PDIFFERENTIAL
OUTPUT = 1.5VP-P
Figure 1. Illustration of TX Preemphasis in dB
MAX3983
MAX3983
SIGNAL
SOURCE
1in ≤ L ≤ 20in
6 mils
1in ≤ L ≤ 3in
PC BOARD (FR4)
OSCILLOSCOPE OR
ERROR DETECTOR
SMA CONNECTORS
FUJITSU
MICROGIGA
CONNECTORS
InfiniBand CABLE
ASSEMBLY
RX_OUTRX_IN
6 mils
6 mils
6 milsTX_INTX_OUT
1in ≤ L ≤ 20in1in ≤ L ≤ 3in
END-TO-END TESTING
FR4
4.0 ≤ εR ≤ 4.4
tanδ = 0.022
Figure 2. End-to-End Test Setup. The points labeled A and B are referenced for AC parameter test conditions.
MAX3983
Quad Copper-Cable Signal Conditioner
Typical Operating Characteristics
(VCC= +3.3V, TA= +25°C, unless otherwise noted.)
TRANSIENT REPSONSE
MAX3983 toc01
VOUT
A = 3dB, TX_PE = 00
B = 6dB, TX_PE = 01
C = 9dB, TX_PE = 10
D = 12dB, TX_PE = 11
3.125Gbps
K28.7 PATTERN
MEASURED DIRECTLY AT PART
VERTICAL EYE OPENING
vs. CABLE LENGTH
MAX3983 toc02
CABLE LENGTH (m)
VERTICAL EYE OPENING (mV
P-P105
TX_PE[1,0] = 00
TX_PE[1,0] = 01
TX_PE[1,0] = 10
TX_PE[1,0] = 11
2.5Gbps XAUI CJPAT
24AWG CABLE
CABLE LENGTH (m)
DJ (ps)105
END-TO-END DETERMINISTIC JITTER
vs. CABLE LENGTH
MAX3983 toc03
2.5Gbps XAUI CJPAT
ALL CHANNELS TRANSMITTING
10in FR4 AT TX_IN
10in FR4 AT RX_OUT
SOURCE DJ = 23ps
A, B
A = 24AWG, TX_PE[1,0] = 00
B = 24AWG, TX_PE[1,0] = 01
C = 24AWG, TX_PE[1,0] = 10
D = 24AWG, TX_PE[1,0] = 11
E = 28AWG, TX_PE[1,0] = 11
10m 24AWG UNEQUALIZED CABLE
ASSEMBLY OUTPUT WITHOUT MAX3983
MAX3983 toc04
1500mVP-P
AT TRANSMITTER
3.125Gbps
XAUI CJPAT
CABLE ONLY
60ps/div
10m 24AWG UNEQUALIZED CABLE ASSEMBLY
OUTPUT WITH MAX3983 PREEMPHASIS
MAX3983 toc05
3.125Gbps
XAUI CJPAT
PREEMPHASIS,
TX_PE[1, 0] = 10
320mVP-P
60ps/div
TX_IN INPUT RETURN LOSS
vs. FREQUENCY
MAX3983 toc06
FREQUENCY (GHz)
DIFFERENTIAL S11 (dB)
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR,
COUPLING CAPACITOR, AND 3in TRACE
MAX3983
Quad Copper-Cable Signal Conditioner
Typical Operating Characteristics (continued)
(VCC= +3.3V, TA= +25°C, unless otherwise noted.)
RX_OUT OUTPUT RETURN LOSS
vs. FREQUENCY
MAX3983 toc09
FREQUENCY (GHz)
DIFFERENTIAL S22 (dB)
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR,
COUPLING CAPACITOR, AND 3in TRACE
POWER-ON RESET DELAY
WITH SUPPLY RAMP
MAX3983 toc12
2ms/div
1V/div
200mA/div
VCC
ICC
1μF CAPACITOR FROM
POR PIN TO GROUND
TX_OUT OUTPUT RETURN LOSS
vs. FREQUENCY
MAX3983 toc07
FREQUENCY (GHz)
DIFFERENTIAL S22 (dB)
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR,
COUPLING CAPACITOR, AND 3in TRACE
RX_IN INPUT RETURN LOSS
vs. FREQUENCY
MAX3983 toc08
FREQUENCY (GHz)
DIFFERENTIAL S11 (dB)
USING AGILENT 8720ES AND ATN MICROWAVE
ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR,
COUPLING CAPACITOR, AND 3in TRACE
MAX3983
Quad Copper-Cable Signal Conditioner
Pin Description
PINNAMEFUNCTION
1, 2, 16, 17TX_SD1 to
TX_SD4
PC Board Receiver Signal Detect, TTL Output. This output is open-collector TTL, and therefore
requires an external 4.7kΩ to 10kΩ pullup resistor to VCC. These outputs sink current when the input
signal level is not valid.
3, 15VCC1Power-Supply Connection for TX Inputs. Connect to +3.3V.
4, 7, 10, 13TX_IN1- to
TX_IN4-
PC Board Receiver Negative Data Inputs, CML. These inputs are internally differentially terminated to
the corresponding TX_IN+ with 100Ω.
5, 8, 11, 14TX_IN1+ to
TX_IN4+
PC Board Receiver Positive Data Inputs, CML. These inputs are internally differentially terminated to
the corresponding TX_IN- with 100Ω.
6, 9, 12, 40,
43, 46GNDCircuit GroundTX_ENABLE
Cable Transmitter Enable Input, LVTTL with 40kΩ Internal Pullup. This pin enables all four cable
transmitter outputs TX_OUT[1:4]. When low, differential output is less than 30mVP-P. Set high or open
for normal operation.N.C.No Connection. Do not connect this pin.
20, 23, 26,
29, 32VCC2Power-Supply Connection for TX Outputs. Connect to +3.3V.
21, 24, 27,
TX_OUT1+ to
TX_OUT4+Cable Transmitter Positive Data Outputs, CML. These outputs are terminated with 50Ω to VCC2.
22, 25, 28,
TX_OUT1- to
TX_OUT4-Cable Transmitter Negative Data Outputs, CML. These outputs are terminated with 50Ω to VCC2.TX_PE0Cable Transmitter Preemphasis Control Input, LVTTL with 40kΩ Internal Pullup. This pin is the least
significant bit of the 2-bit preemphasis control. Set high or open to assert this bit.TX_PE1Cable Transmitter Preemphasis Control Input, LVTTL with 40kΩ Internal Pullup. This pin is the most
significant bit of the 2-bit preemphasis control. Set high or open to assert this bit.
35, 36, 50,
RX_SD4 to
RX_SD1
Cable Receiver Signal Detect, TTL Output. This output is open-collector TTL, and therefore it requires
an external 4.7kΩ to 10kΩ pullup resistor to VCC. These outputs sink current when the input signal
level is not valid.
37, 49VCC3Power-Supply Connection for RX Inputs. Connect to +3.3V.
38, 41, 44,
RX_IN4- to
RX_IN1-
Cable Receiver Negative Data Inputs, CML. These inputs are internally differentially terminated to the
corresponding RX_IN+ with 100Ω.
39, 42, 45,
RX_IN4+ to
RX_IN1+
Cable Receiver Positive Data Inputs, CML. These inputs are internally differentially terminated to the
corresponding RX_IN- with 100Ω.RX_ENABLE
PC Board Transmitter Enable Input, LVTTL with 40kΩ Internal Pullup. This pin enables all four PC
board transmitter outputs RX_OUT[1:4]. When low, differential output is less than 30mVP-P. Set high
or open for normal operation.PORPower-On Reset Connection. Connect external capacitor 0.1µF ≤ CPOR ≤ 10µF to ground. See the
Detailed Description.
54, 57, 60,
63, 66VCC4Power-Supply Connection for RX Outputs. Connect to +3.3V.

Partno	Mfg	Dc	Qty	Available	Descript
MAX3983UGK+D	MAXIM	N/a	50	avai	Quad Copper-Cable Signal Conditioner