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Part: MAX3803
Category:
Communication
-> Fiber Optics
Description: MAX3803 DC-Coupled, Ucsp 3.125Gbps Equalizer
Company: Maxim Integrated Products
Datasheet: Download MAX3803 datasheet File size : 711 kB
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Datasheet text preview:
19-2699; Rev 0; 2/03
DC-Coupled, UCSP 3.125Gbps Equalizer
General Description
The MAX3803 equalizer automatically provides compensation for transmission-medium losses encountered with FR4 stripline and cable in an incredibly small 2mm × 2.5mm package. It is ideal for backplane applications r e q u i r i n g 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 consumes 160mW at +3.3V.
Features
o DC-Coupled Input and Output to Terminations as Low as +1.1V o 2mm × 2.5mm UCSPTM o 1Gbps to 3.2Gbps Operating Range o Spans 40in (1m) of FR4 o Spans 10m, 28AWG Twin Ax o Receive Equalization to Reduce ISI
MAX3803
Applications
Backplane Interconnect Rack-to-Rack Interconnect Common-Mode Voltage Translation (LVDS, PECL, or CML)
PART MAX3803UBP-T
Ordering Information
TEMP RANGE 0°C to +85°C PIN-PACKAGE 5 x 4 UCSP
Pin Configuration appears at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc.
Typical Application Circuit
LINE CARD +1.1V V VCC +3.3V MAC WITH SERDES 2 Rx Tx 40in (1m) VTI 2 IN PC BOARD BACKPLANE VCC VTO 2 OUT 2 Rx SWITCH ASIC WITH SERDES SWITCH CARD +1.1V V VCC
FR4 STRIPLINE
MAX3803
+3.3V VCC 2 Tx Rx 2 OUT MAX3803 VTO VTI IN 2
2 FR4 STRIPLINE Tx
+1.1V V VCC
+1.1V V VCC
________________________________________________________________ Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
DC-Coupled, UCSP 3.125Gbps Equalizer MAX3803
ABSOLUTE MAXIMUM RATINGS
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
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.
OPERATING CONDITIONS
PARAMETER Supply Voltage Input Termination Voltage Output Termination Voltage Supply Noise Tolerance Operating Ambient Temperature Bit Rate CID NRZ data Consecutive identical digits SYMBOL VCC VTI VTO 10Hz f < 100Hz 100Hz f < 1MHz 1MHz f 2.5GHz 0 2.488 CONDITIONS MIN 3.0 1.1 1.1 100 40 10 25 85 3.125 100 °C Gbps bits mVP-P TYP 3.3 MAX 3.6 VCC VCC UNITS V V V
ELECTRICAL CHARACTERISTICS
(Typical values are at +3.3V and at TA = +25°C, unless otherwise noted. Specifications guaranteed over specified operating conditions.)
PARAMETER Supply Current (Note 1) Output Driver Supply Current Input Swing (Note 1) Input Common-Mode Voltage Range Input Return Loss Input Resistance Output Swing (Notes 1, 3) Output Common-Mode Voltage Output Resistance Output Return Loss Output Transition Time Differential Skew tr, tf Single ended (Note 1) 100MHz to 2.5GHz 20% to 80% (Notes 2, 4) Difference in 50% crossing between OUT+ and OUT40 42.5 SYMBOL EN = high EN = low (Note 2) Measured differentially at point A (Figure 1) (Note 1) 100MHz to 2.5GHz Single ended (Note 1) EN = high EN = low 42.5 400 400 VTI 0.25V 10 50 450 30 VTO 0.112V 50 10 70 10 100 57.5 57.5 600 CONDITIONS MIN TYP 45 14 9 MAX 65 30 14 1000 VTI 0.10V UNITS mA mA mVP-P V dB mVP-P V dB ps ps
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DC-Coupled, UCSP 3.125Gbps Equalizer
ELECTRICAL CHARACTERISTICS (continued)
(Typical values are at +3.3V and at TA = +25°C, unless otherwise noted. Specifications guaranteed over specified operating conditions.)
PARAMETER SYMBOL 0in, 6-mil FR4 10in, 6-mil FR4 20in, 6-mil FR4 Residual Deterministic Jitter Output (2.5Gbps, CJTPAT) (Notes 2, 5) 30in, 6-mil FR4 40in, 6-mil FR4 3m Tensolite cable 5m Tensolite cable 10m Tensolite cable 0in, 6-mil FR4 Residual Deterministic Jitter Output (2.5Gbps, 27 PRBS + 100 CID) (Notes 2, 6) 10in, 6-mil FR4 20in, 6-mil FR4 30in, 6-mil FR4 3m Tensolite cable 0in, 6-mil FR4 10in, 6-mil FR4 20in, 6-mil FR4 Residual Deterministic Jitter Output (3.125Gbps, CJTPAT) (Notes 2, 7) 30in, 6-mil FR4 40in, 6-mil FR4 3m Tensolite cable 5m Tensolite cable Random Jitter Output Latency Low-Frequency Cutoff LVTTL Input High Voltage LVTTL Input Low Voltage LVTTL Input High Current LVTTL Input Low Current VIH VIL IIH IIL (Note 1) (Note 1) (Note 1) (Note 1) 1.5 0.5 10 10 (Notes 2, 4) From IN to OUT CONDITIONS MIN TYP 0.01 0.04 0.05 0.05 0.07 0.03 0.1 0.14 0.01 0.06 0.11 0.15 0.09 0.01 0.02 0.03 0.06 0.11 0.05 0.16 2 0.3 15 MAX 0.10 0.10 0.10 0.15 0.15 0.10 0.20 0.25 0.10 0.10 0.15 0.20 0.15 0.10 0.10 0.15 0.15 0.25 0.10 0.25 3 psRMS ns kHz V V µA µA UI UI UI UNITS
MAX3803
Note 1: Note 2: Note 3: Note 4:
Production tested at TA = +25°C. Specifications over temperature are guaranteed by design and characterization. Specifications are guaranteed by design and characterization. Measured differentially at point C with 50 ±1% at each side (Figure 1). 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 27 with 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.
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