MAX3802UTK+ ,3.2Gbps Quad Adaptive Cable Equalizer with Cable DriverElectrical Characteristics(V = 3.14V to 3.46V, T = 0°C to +85°C. Typical values are at V = 3.3V and ..
MAX3802UTK+D ,3.2Gbps Quad Adaptive Cable Equalizer with Cable DriverElectrical Characteristics(V = 3.14V to 3.46V, T = 0°C to +85°C. Typical values are at V = 3.3V and ..
MAX3803UBP-T ,DC-Coupled / UCSP 3.125Gbps EqualizerApplicationsBackplane InterconnectOrdering InformationRack-to-Rack InterconnectCommon-Mode Voltage ..
MAX3804ETE+ ,12.5Gbps Settable Receive EqualizerFeaturesThe MAX3804 driver with integrated analog equalizer Compensates Up to 30in (0.75m) of 6-mi ..
MAX3812USA ,Multirate SMPTE SD/HD Cable Driver with Selectable Slew RateApplications♦ 0°C to +85°C Operating Temperature RangeSMPTE 292M, SMPTE 344M, SMPTE 259M, andDVB-AS ..
MAX3814CHJ+T ,DVI/HDMI TMDS FR-4 and Cable Equalizer/DriverFeaturesThe MAX3814 TMDS™ EQ/driver IC compensates for ♦ Equalizes FR-4 Board Microstrip and Cable ..
MAX738AEWE ,5V / Step-Down / Current-Mode PWM DC-DC ConvertersMAX730A/MAX738A/MAX744A19-0165; Rev 2; 1/965V, Step-Down,Current-Mode PWM DC-DC Converters_________ ..
MAX739CPD ,-5V,-12V,-15V, and Adjustable Inverting Current-Mode PWM RegulatorslVI/lXI/VI
-5V, -12V, -15V, and Adjustable
Inverting Gurrent-Mode PWM Regulators
MAX739CWE ,-5V,-12V,-15V, and Adjustable Inverting Current-Mode PWM RegulatorsGeneral Description
The MAX736/MAX737/MAX739/MAX759 are CMOS, in-
verting, switch-mode regulato ..
MAX739EWE ,-5V,-12V,-15V, and Adjustable Inverting Current-Mode PWM RegulatorsFeatures
. Pre-Set -5V, -12V, -15V or Adjustable Outputs
. Convert Positive Voltages to Negative
..
MAX7400CSA ,8th-Order, Lowpass, Elliptic, Switched-Capacitor Filtersapplications. They fea-' Single-Supply Operationture a shutdown mode that reduces the supply curren ..
MAX7400ESA ,8th-Order, Lowpass, Elliptic, Switched-Capacitor FiltersELECTRICAL CHARACTERISTICS—MAX7400/MAX7403(V = +5V, filter output measured at OUT, 10kΩ || 50pF loa ..
MAX3802UGK-D-MAX3802UTK+-MAX3802UTK+D
3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver
General DescriptionThe MAX3802 has four independent adaptive cable
equalizers and cable drivers on a single chip. It is
designed for coaxial and twin-axial cable point-to-point
scrambled-data communication applications. The driver
features differential current-mode logic (CML) inputs and
outputs. The equalizer includes differential CML data
inputs and outputs and a TTL loss-of-signal (LOS) output.
The adaptive cable equalizer can equalize differential or
single-ended signals at data rates up to 3.2Gbps. It auto-
matically adjusts to attenuation caused by skineffect loss-
es of 30dB at 1.6GHz. The equalizer effectively extends
the usable length of copper cable in high-frequency inter-
connect applications.
Applications●High-Speed Links in Communications and Data
Systems●Backplane and Twin-Axial Cable Interconnects●Category 5 UTP-Based Systems
Features●Single 3.3V Operation●Four Independent Equalizers and Drivers●725mW at 3.3V Typical Power Dissipation●Data Rates Up to 3.2Gbps●Equalizer Automatically Adjusts for Different Cable
Lengths●0 to 30dB Equalization at 1.6GHz (3.2Gbps)●Loss-of-Signal (LOS) Indicator●On-Chip Input and Output Terminations●Low External Component Count●0°C to +85°C Operating Temperature Range●ESD Protection on Cable Inputs and Outputs
Pin Configuration appears at end of data sheet.+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
PARTTEMP RANGEPIN-PACKAGEMAX3802UTK+0°C to +85°C68 TQFN-EP*
DOUT_
EIN_
DIN_
EOUT_DOUT_
EIN_
DIN_
THIS SYMBOL INDICATES A CONTROLLED-IMPEDANCE TRANSMISSION LINE.
EOUT_
RMOD_CIM_
CARD 2CARD 1
3.3V
LOS_RMOD_CIM_LOS_
EP*VCC444
RMOD_
COAX, TWIN-AX, OR PC BOARD x 4
COAX, TWIN-AX, OR PC BOARD x 4
*EP MUST BE SOLDERED TO GROUND FOR
PROPER THERMAL AND ELECTRICAL PERFORMANCE.
3.3V
EP*VCC
RMOD_44
MAX3802MAX3802
MAX38023.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
Typical Application Circuit
Ordering Information
EVALUATION KIT AVAILABLE
Supply Voltage, VCC ............................................-0.5V to +6.0V
Voltage at LOS_, CIM_, and RMOD_ ......-0.5V to (VCC + 0.5V)
Voltage at EIN_+, EIN_-,
DIN_+, and DIN_- .............................(VCC - 1V) to (VCC + 0.5V)
Current Out of EOUT_+, EOUT_-,
DOUT_+, and DOUT_- ...................................................25mA
Continuous Power Dissipation (TA = +70°C)
68-Pin TQFN (derate 50mW/°C above +70°C) ..................4W
Operating Ambient Temperature Range .................0°C to +85°C
Storage Ambient Temperature Range ..............-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(VCC = 3.14V to 3.46V, TA = 0°C to +85°C. Typical values are at VCC = 3.3V and TA = +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSSupply CurrentICCIncludes external load current (Note 1)220345mA
CABLE DRIVER INPUT SPECIFICATIONSInput Voltage
(Single Ended)
VDIN_+,
VDIN_-
VCC -
VCC +
0.2V
Input Voltage (Differential) VDIN_400 1100mVP-P
Input ImpedanceSingle ended405060Ω
CABLE DRIVER OUTPUT SPECIFICATIONSOutput Voltage (Differential)RMOD_ = 10kΩ (Note 2)7508251000mVP-PRMOD_ = 20kΩ (Note 2)400 445550
Output Impedance Single ended5062.575Ω
CABLE EQUALIZER INPUT SPECIFICATIONSMinimum Cable Input (Differential)3.2Gbps, 30dB cable loss (Note 3)400mVP-P
Maximum Cable Input (Differential)600mVP-P
Input Impedance405060Ω
CABLE EQUALIZER OUTPUT SPECIFICATIONSOutput Voltage (Differential)(Note 2)500 1000mVP-P
Output Impedance Single ended5062.575Ω
Voltage at LOS_Output high (Note 4)2.4VOutput low (Note 4)0.4
MAX38023.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
Absolute Maximum RatingsStresses 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.
DC Electrical Characteristics
(VCC = 3.14V to 3.46V, TA = 0°C to +85°C. Typical values are at VCC = 3.3V and TA = +25°C, unless otherwise noted.)
Note 1: Equalizer total currents (equalizer with maximum equalization) and RMOD = 10kΩ (maximum driver swing).
Note 2: Input voltage within specification limits, 50Ω to VCC at each output.
Note 3: Minimum cable input for LOS_ to deassert high.
Note 4: 100kΩ load to ground. The minimum input signal level that turns off the LOS_ alarm depends on the data rate and cable
length.
Note 5: AC electrical characteristics are guaranteed by design and characterization.
Note 6: VDIN_ = 400mVP-P to 1100mVP-P (differential), 10kΩ ≤ RMOD_ ≤ 20kΩ, 3.2Gbps 213 -1 PRBS plus 100 consecutive ones and 100 consecutive zeros.
Note 7: Includes random jitter and deterministic jitter for BER of 10-12.
Note 8: Differential cable input voltage = 400mVP-P, 3.2Gbps 213 -1 PRBS plus 100 consecutive ones and 100 consecutive zeros.
Note 9: Isolation test: three channels driven with identical 3.2Gbps PRBS with maximum input signal to each equalizer and maxi-
mum input signal on driver. The measured channel meets the residual and random jitter specifications with an uncorre-
lated 3.2Gbps PRBS data at minimum input signal level on equalizer and maximum signal level on driver.
Note 10: Equalizer time constant measured from data on to closed-loop operation.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSMaximum Input Data Rate3.2Gbps
CABLE DRIVER SPECIFICATIONSRandom Jitter3.2Gbps input2.74mUIRMS
Deterministic Jitter(Notes 6, 9)2060mUIP-P
Output Edge Speed20% to 80%6090ps
Input Return Loss
(Differential)≤ 2.5GHz-20dB
Output Return Loss
(Differential)≤ 2.5GHz-13dB
EQUALIZER SPECIFICATIONSResidual Jitter
(Notes 7, 9)
0dB cable loss (Note 8)0.100.24
UIP-P24dB cable loss (Note 8) 0.110.20
30dB cable loss (Note 8)0.080.20
Output Edge Speed 20% to 80%6090ps
Input Return Loss
(Differential)≤ 2.5GHz-16dB
Output Return Loss
(Differential)≤ 2.5GHz-14dB
Equalizer Compensation1.6GHz (skin-effect losses only)30dB
Equalizer Time Constant (Note 10)6µs
MAX38023.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
AC Electrical Characteristics
(VCC = 3.3V, TA = +25°C, all jitter measurements done at 3.2Gbps, 600mV cable input with 213 - 1 PRBS pattern with 100 consecutive
ones and 100 consecutive zeros substituted. Note: Test pattern produces near-worst-case jitter results. Results vary with pattern, un-
less otherwise noted.)
CABLE DRIVER OUTPUT vs. RMOD
MAX3802 toc02
RMOD (kΩ)
DRIVER OUTPUT VOLTAGE (mV)
DRIVER INPUT RETURN LOSS (S11)
MAX3802 toc03
FREQUENCY (GHz)
GAIN (dB)
DRIVER OUTPUT RETURN LOSS (S22)
MAX3802 toc04
FREQUENCY (GHz)
GAIN (dB)
EQUALIZER INPUT RETURN LOSS (S11)
MAX3802 toc05
FREQUENCY (GHz)
GAIN (dB)
EQUALIZER OUTPUT RETURN LOSS (S22)
MAX3802 toc06
FREQUENCY (GHz)
GAIN (dB)
EQUALIZER RESIDUAL JITTER vs. POWER-SUPPLY
NOISE (100mVP-P SINE WAVE) (40ft OF TENSOLITE
TWIN-AX, 400mVP-P DIFFERENTIAL INPUT)MAX3802 toc07
JITTER (ps
P-P
SUPPLY CURRENT vs. TEMPERATURE
MAX3802 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
RMOD = 15kΩ
ALL CHANNELS AT
MAX EQUALIZATION
EQUALIZER RESIDUAL JITTER vs. CABLEINPUT AMPLITUDE (RG179B 75Ω COAXIAL
CABLE, SINGLE ENDED)
MAX3802 toc08
JITTER (ps
P-P25ft
72ft
EQUALIZER RESIDUAL JITTER vs. CABLE
INPUT AMPLITUDE (TENSOLITE
TWIN-AX–DIFFERENTIAL)
MAX3802 toc09
JITTER (ps
P-P
70ft
10ft40ft
MAX38023.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
Typical Operating Characteristics
(VCC = 3.3V, TA = +25°C, all jitter measurements done at 3.2Gbps, 600mV cable input with 213 - 1 PRBS pattern with 100 consecutive
ones and 100 consecutive zeros substituted. Note: Test pattern produces near-worst-case jitter results. Results vary with pattern, un-
less otherwise noted.)
EQUALIZER RESIDUAL JITTER vs. CABLE
LENGTH (TENSOLITE TWIN-AX, 400mVP-P
DIFFERENTIAL INPUT)MAX3802 toc10
CABLE LENGTH (ft)
JITTER (ps
P-P304020506070
3.2Gbps
2.5Gbps
622Mbps45355565
EQUALIZER RESIDUAL JITTER vs. CABLE
LENGTH (RG179B 75Ω COAXIAL, 300mVP-P
SINGLE ENDED)MAX3802 toc11
CABLE LENGTH (ft)
JITTER (ps
P-P
3.2Gbps
2.5Gbps
622Mbps
EQUALIZER RESIDUAL JITTER vs. LINE
LENGTH (FR-4 6mil STRIPLINE, 300mVP-P
SINGLE ENDED)
MAX3802 toc12
LINE LENGTH (in)
JITTER (ps
P-P507080
3.2Gbps
2.5Gbps
622Mbps
CIM VOLTAGE vs. CABLE LENGTH (TENSOLITE
TWIN-AX, 400mVP-P DIFFERENTIAL)
MAX3802 toc13
CABLE LENGTH (ft)
CIM VOLTAGE (V
- V
CIM
) (V)304020506070
EQUALIZER INPUT AFTER 115ft OF
CABLE (TOP) EQUALIZER OUTPUT (BOTTOM)MAX3802 toc14
48ps/div (3.2Gbps)
EQUALIZER OUTPUT EYE DIAGRAM AFTER
155ft OF 50Ω GORE-89 CABLE (400mVP-P)MAX3802 toc15
CABLE OUTPUT EYE DIAGRAM AFTER 70ft
OF TENSOLITE TWIN-AX CABLE (27 - 1 PRBS
NO EQUALIZATION)MAX3802 toc16
EQUALIZER OUTPUT EYE DIAGRAM AFTER 70ft
OF TENSOLITE TWIN-AX CABLE (27 - 1 PRBS)MAX3802 toc17
EQUALIZER OUTPUT EYE DIAGRAM AFTER 72ft
OF 75Ω RG179 CABLE
(300mVP-P SINGLE ENDED, 223 - 1 PRBS)MAX3802 toc18
MAX38023.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
Typical Operating Characteristics (continued)
(VCC = 3.3V, TA = +25°C, all jitter measurements done at 3.2Gbps, 600mV cable input with 213 - 1 PRBS pattern with 100 consecutive
ones and 100 consecutive zeros substituted. Note: Test pattern produces near-worst-case jitter results. Results vary with pattern, un-
less otherwise noted.)
PINNAMEFUNCTION1, 4, 6, 9VCCE13.3V Supply Voltage for Equalizer 1EIN1-Negative Equalizer 1 Input, CMLEIN1+Positive Equalizer 1 Input, CMLCIM1Cable Integrity Monitor 1 OutputEOUT1-Negative Equalizer 1 Output, CMLEOUT1+Positive Equalizer 1 Output, CMLRMOD1Driver 1 Output Modulation Adjust
11, 14VCCD13.3V Supply Voltage for Driver 1DOUT1-Negative Driver 1 Output, CMLDOUT1+Positive Driver 1 Output, CMLDIN1-Negative Driver 1 Input, CMLDIN1+Positive Driver 1 Input, CMLLOS1Equalizer 1 Loss-of-Signal, TTL, Active Low
18, 21, 23, 26VCCE23.3V Supply Voltage for Equalizer 2EIN2-Negative Equalizer 2 Input, CMLEIN2+Positive Equalizer 2 Input, CMLCIM2Cable Integrity Monitor 2 OutputEOUT2-Negative Equalizer 2 Output, CMLEOUT2+Positive Equalizer 2 Output, CMLRMOD2Driver 2 Output Modulation Adjust
28, 31VCCD23.3V Supply Voltage for Driver 2DOUT2-Negative Driver 2 Output, CML
60ps/div (2.5Gbps)
EQUALIZER OUTPUT EYE DIAGRAM AFTER 60in OF
FR-4 6mil STRIPLINE (DIFFERENTIAL,7 - 1 PRBS)MAX3802 toc19
60ps/div (2.5Gbps)
EQUALIZER OUTPUT EYE DIAGRAM AFTER 288ft
OF RG59 CABLE (300mVP-P SINGLE ENDED,
223 - 1 PRBS)MAX3802 toc20
60ps/div (2.5Gbps)
EQUALIZER OUTPUT EYE DIAGRAM AFTER 50ft
OF MADISON 14887 SHIELDED TWISTED-PAIR
CABLE (27 - 1 PRBS)MAX3802 toc21
MAX38023.2Gbps Quad Adaptive Cable Equalizer
with Cable Driver
Pin Description
Typical Operating Characteristics (continued)
