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 ..
MAX3815CCM+TD ,TMDS Digital Video Equalizer for DVI/HDMI CablesELECTRICAL CHARACTERISTICS(V = +3.0V to +3.6V, T = 0°C to +70°C. Typical Values are at V = +3.3V, e ..
MAX3816ACUE+ ,I²C 2-Wire Extender for DDC in DVI, HDMI, and VGA InterfacesApplicationsFront-Projector DVI/HDMI InputsPART TEMP RANGE PIN-PACKAGE High-Definition Televisions, ..
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 ..
MAX3803UBP-T
DC-Coupled / UCSP 3.125Gbps Equalizer
General DescriptionThe MAX3803 equalizer automatically provides com-
pensation for transmission-medium losses encountered
with FR4 stripline and cable in an incredibly small 2mm2.5mm package. It is ideal for backplane applications
requiring up to 40in between the line card and the
switch card or up to 10m of twin ax cable between
racks. Its small size provides placement and routing
flexibility. The CML inputs and outputs are DC-coupled
and can be terminated to a supply as low as +1.1V.
The MAX3803 operates from 0°C to +85°C and con-
sumes 160mW at +3.3V.
ApplicationsBackplane Interconnect
Rack-to-Rack Interconnect
Common-Mode Voltage Translation
(LVDS, PECL, or CML)
FeaturesDC-Coupled Input and Output to Terminations
as Low as +1.1V2mm ×2.5mm UCSPTM1Gbps to 3.2Gbps Operating RangeSpans 40in (1m) of FR4Spans 10m, 28AWG Twin AxReceive Equalization to Reduce ISI
MAX3803
DC-Coupled, UCSP 3.125Gbps Equalizer
Ordering Information
Typical Application Circuit19-2699; Rev 0; 2/03
Pin Configuration appears at end of data sheet.UCSP is a trademark of Maxim Integrated Products, Inc.
MAX3803
DC-Coupled, UCSP 3.125Gbps Equalizer
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.
Supply Voltage, VCC, VTI, and VTO..........................-0.5V to +6V
Continuous Output Current...............................-25mA to +25mA
IN±, OUT±, EN............................................-0.5V to (VCC+ 0.5V)
Operating Ambient Temperature Range................0°C to +85°C
Storage Ambient Temperature Range...............-55°C to +150°C
ELECTRICAL CHARACTERISTICS(Typical values are at +3.3V and at TA= +25°C, unless otherwise noted. Specifications guaranteed over specified operating conditions.)
MAX3803
DC-Coupled, UCSP 3.125Gbps Equalizer
Note 2:Specifications are guaranteed by design and characterization.
Note 3:Measured differentially at point C with 50Ω±1% at each side (Figure 1).
Note 4:Using a 0000011111 or equivalent pattern at selected bit rate. Measured at 600mVP-P input voltage, 10m cable or 40in FR4,
at 2.5Gbps and within 2in of output pins.
Note 5:Difference in peak-to-peak deterministic jitter between reference points A and C in Figure 1. Evaluated at 2.5Gbps with CJTPAT.
Note 6:Difference in peak-to-peak deterministic jitter between reference points A and C in Figure 1. Evaluated at 2.5Gbps with a
PRBS 27with 100 CIDs input pattern.
Note 7:Difference in peak-to-peak deterministic jitter between reference points A and C in Figure 1. Evaluated at 3.125Gbps with
CJTPAT.
ELECTRICAL CHARACTERISTICS (continued)
MAX3803
DC-Coupled, UCSP 3.125Gbps Equalizer
Typical Operating Characteristics(VCC = +3.3V, VTI= +1.1V, VTO= +1.1V, and TA = +25°C, unless otherwise noted.)
MAX3803
DC-Coupled, UCSP 3.125Gbps Equalizer
DETERMINISTIC JITTER vs. INPUT AMPLITUDE
(40in, 6-mil FR4 STRIPLINE, 3.125Gbps)MAX3803 toc10
INPUT AMPLITUDE (mVP-P)
DETERMINISTIC JITTER (ps)
DETERMINISTIC JITTER vs. INPUT AMPLITUDE
(30in, 6-mil FR4 STRIPLINE, 2.488Gbps)
MAX3803 toc11
INPUT AMPLITUDE (mVP-P)
DETERMINISTIC JITTER (ps)
DETERMINISTIC JITTER vs. INPUT AMPLITUDE
(33ft, 28AWG TENSOLITE CABLE, PATTERN = K28.5)
MAX3803 toc12
INPUT AMPLITUDE (mVP-P)
DETERMINISTIC JITTER (ps)
DETERMINISTIC JITTER vs. LENGTH
(IN± = 800mVP-P, PATTERN = PRBS 210 - 1)
MAX3803 toc13
LENGTH OF 6-mil FR4 STRIPLINE (in)
DETERMINISTIC JITTER (ps)10
DETERMINISTIC JITTER vs. LENGTH
(IN± = 600mVP-P, PATTERN = CJTPAT)
MAX3803 toc14
LENGTH OF 6-mil FR4 STRIPLINE (in)
DETERMINISTIC JITTER (ps)100304050
Typical Operating Characteristics (continued)(VCC = +3.3V, VTI= +1.1V, VTO= +1.1V, and TA = +25°C, unless otherwise noted.)
_______________Detailed Description
______and Applications InformationThe MAX3803 is an adaptive equalizer designed to
extend the reach of transmission lines in high-frequency
backplane and rack-to-rack interconnect applications.
The MAX3803 automatically adjusts to attenuation
caused by skin-effect and dielectric losses. Although
optimized for coded and scrambled data between
2.488Gbps and 3.125Gbps, the MAX3803 provides
effective compensation for rates between 1Gbps
and 3.2Gbps.
The MAX3803 consists of low common-mode input and
output buffers, an equalizer core, a DC-offset-correction
loop, and a limiting amplifier (Figure 2).
Low Common-Mode Input and OutputThe MAX3803 permits DC-coupling to CML transmitters
and receivers that require termination voltages as low
as 1.1V and as high as VCC. Use the VTIand VTOpins
to maintain compatible common-mode levels between
the data source and load. VTIand VTOare independent
and can be used to bridge two common-mode require-
ments without the use of DC-blocking capacitors. See
Figure 3 and Figure 4 for the equivalent input and out-
put structures.
Media EqualizationEqualization at the input compensates for high-frequency
loss encountered with FR4 stripline (edge-coupled) or
28AWG twin ax. The equalizer core is an amplifier with a
self-adjusting frequency response.
DC Cancellation LoopThe DC cancellation loop removes the pulse-width dis-
tortion caused by internal offsets. The closed-loop
response creates a low-frequency cutoff of approxi-
mately 15kHz, below which the offset control tracks the
AC signal. This also sets the limit on the maximum time
MAX3803
DC-Coupled, UCSP 3.125Gbps Equalizer
