MAX9390/MAX9391 19-2829 Rev 2 5/07 Anything-to-LVDS Dual 2 x 2 Crosspoint Switches General Description Features The MAX9390/MAX9391 dual 2 x 2 crosspoint switches 1.5GHz Operation with 250mV Differential Output perform high-speed, low-power, and low-noise signal Swing distribution. The MAX9390/MAX9391 multiplex one of two 2ps (max) Random Jitter (RMS) differential input pairs to either or both low-voltage differ- AC Specifications Guaranteed for 150mV ential signaling (LVDS) outputs for each channel. Differential Input Independent enable inputs turn on or turn off each differ- ential output pair. Signal Inputs Accept Any Differential Signaling Standard Four LVCMOS/LVTTL logic inputs (two per channel) con- trol the internal connections between inputs and outputs. LVDS Outputs for Clock or High-Speed Data This flexibility allows for the following configurations: 2 x 2 High-Level Input Fail-Safe Detection (MAX9390) crosspoint switch, 2:1 mux, 1:2 splitter, or dual repeater. Low-Level Input Fail-Safe Detection (MAX9391) This makes the MAX9390/MAX9391 ideal for protection switching in fault-tolerant systems, loopback switching for 3.0V to 3.6V Supply Voltage Range diagnostics, fanout buffering for clock/data distribution, LVCMOS/LVTTL Logic Inputs Control Signal and signal regeneration. Routing Fail-safe circuitry forces the outputs to a differential low condition for undriven inputs or when the common- Ordering Information mode voltage exceeds the specified range. The PIN- PKG MAX9390 provides high-level input fail-safe detection PART TEMP RANGE PACKAGE CODE for LVDS, HSTL, and other GND-referenced differential inputs. The MAX9391 provides low-level input fail-safe MAX9390EHJ -40C to +85C 32 TQFP H32-1 detection for LVPECL, CML, and other V -referenced CC MAX9390EHJ+ -40C to +85C 32 TQFP H32-1 differential inputs. MAX9391EHJ -40C to +85C 32 TQFP H32-1 Ultra-low 82ps (max) pseudorandom bit sequence (P-P) MAX9391EHJ+ -40C to +85C 32 TQFP H32-1 (PRBS) jitter ensures reliable communications in high- +Denotes a lead-free package. speed links that are highly sensitive to timing error, especially those incorporating clock-and-data recovery, or serializers and deserializers. The high-speed switch- Pin Configurations ing performance guarantees 1.5GHz operation and less than 65ps (max) skew between channels. TOP VIEW LVDS inputs and outputs are compatible with the TIA/EIA-644 LVDS standard. The LVDS outputs drive 100 loads. The MAX9390/MAX9391 are offered in a 32 31 30 29 28 27 26 25 32-pin TQFP package and operate over the extended + temperature range (-40C to +85C). ENB1 1 24 V CC Also refer to the MAX9392/MAX9393 with flow-through 23 OUTA0 OUTB1 2 pinout. OUTB1 3 22 OUTA0 Applications GND 4 21 ENA0 MAX9390 High-Speed Telecom/Datacom Equipment ENB0 5 20 GND MAX9391 Central-Office Backplane Clock Distribution OUTB0 6 19 OUTA1 DSLAM OUTB0 7 18 OUTA1 Protection Switching V 8 17 ENA1 CC Fault-Tolerant Systems 9 10 11 12 13 14 15 16 Functional Diagram and Typical Operating Circuit appear at TQFP end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE GND ASEL1 INA1 INB0 INB0 INA1 BSEL0 V CC V ASEL0 CC INA0 INB1 INA0 INB1 GND BSEL1Anything-to-LVDS Dual 2 x 2 Crosspoint Switches ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +4.1V Operating Temperature Range ...........................-40C to +85C CC IN , IN , OUT , OUT , EN , Junction Temperature......................................................+150C SEL to GND.........................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C CC IN to IN ..........................................................................3V ESD Protection (Human Body Model) Short-Circuit Duration (OUT , OUT ) ...................Continuous (IN , IN , OUT , OUT , EN , SEL ) ................2kV Continuous Power Dissipation (T = +70C) Soldering Temperature (10s)...........................................+300C A 32-Pin QFP (derate 13.1mW/C above +70C).............................................................1047mW Junction-to-Ambient Thermal Resistance in Still Air 32-Pin TQFP............................................................+76.4C/W 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. DC ELECTRICAL CHARACTERISTICS (V = 3.0V to 3.6V, R = 100 1%, EN = V , V = 0.05V to (V - 0.6V) (MAX9390), V = 0.6V to (V - 0.05V) (MAX9391) T = CC L CC CM CC CM CC A -40C to +85C, unless otherwise noted. Typical values are at V = 3.3V, V = 0.2V, V = 1.2V, T = +25C.) (Notes 1, 2, and 3) CC ID CM A PARAMETER SYMB O L CONDITIONS MIN TYP MAX UNITS LVCMOS/LVTTL INPUTS (EN , SEL ) Input High Voltage V 2.0 V V IH CC Input Low Voltage V 0 0.8 V IL Input High Current I V = 2.0V to V 020A IH IN CC Input Low Current I V = 0 to 0.8V 0 10 A IL IN DIFFERENTIAL INPUTS (IN , IN ) Differential Input Voltage V V > 0 and V < V , Figure 1 0.1 3.0 V ID ILD IHD CC MAX9390 0.05 V - 0.6 CC Input Common-Mode Range V V CM MAX9391 0.6 V - 0.05 CC MAX9390 V < 3.0V -75 +10 I , ID IN Input Current A I IN MAX9391 V < 3.0V -10 +100 ID LVDS OUTPUTS (OUT , OUT ) Differential Output Voltage V R = 100 , Figure 2 250 350 450 mV OD L Change in Magnitude of V OD Between Complementary Output V Figure 2 1.0 50 mV OD States Offset Common-Mode Voltage V Figure 2 1.125 1.25 1.375 V OS Change in Magnitude of V OS Between Complementary Output V Figure 2 1.0 50 mV OS States 2 MAX9390/MAX9391