MAX9394/MAX9395 19-2878 Rev 1 5/07 2:1 Multiplexers and 1:2 Demultiplexers with Loopback General Description Features The MAX9394/MAX9395 consist of a 2:1 multiplexer Guaranteed 1.5GHz Operation with 250mV and a 1:2 demultiplexer with loopback. The multiplexer Differential Output Swing section (channel B) accepts two low-voltage differential Simultaneous Loopback Control signaling (LVDS) inputs and generates a single LVDS 2ps (max) Random Jitter output. The demultiplexer section (channel A) accepts (RMS) a single LVDS input and generates two parallel LVDS AC Specifications Guaranteed for 150mV outputs. The MAX9394/MAX9395 feature a loopback Differential Input mode that connects the input of channel A to the output Signal Inputs Accept Any Differential Signaling of channel B and connects the selected input of chan- Standard nel B to the outputs of channel A. LVDS Outputs for Clock or High-Speed Data Three LVCMOS/LVTTL logic inputs control the internal connections between inputs and outputs, one for the High-Level Input Fail-Safe Detection (MAX9394) multiplexer portion of channel B (BSEL), and the other Low-Level Input Fail-Safe Detection (MAX9395) two for loopback control of channels A and B (LB SELA and LB SELB). Independent enable inputs for each dif- 3.0V to 3.6V Supply Voltage Range ferential output pair provide additional flexibility. LVCMOS/LVTTL Logic Inputs 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 MAX9394 provides high-level input fail-safe detection PIN- PKG PART TEMP RANGE PACKAGE CODE for HSTL, LVDS, and other GND-referenced differential inputs. The MAX9395 provides low-level fail-safe detec- MAX9394EHJ -40C to +85C 32 TQFP H32-1 tion for CML, LVPECL, and other V -referenced differ- CC MAX9394EHJ+ -40C to +85C 32 TQFP H32-1 ential inputs. MAX9395EHJ -40C to +85C 32 TQFP H32-1 Ultra low 91ps (max) pseudorandom bit sequence P-P MAX9395EHJ+ -40C to +85C 32 TQFP H32-1 (PRBS) jitter ensures reliable communications in high- speed links that are highly sensitive to timing error, +Denotes a lead-free package. especially those incorporating clock-and-data recovery, or serializers and deserializers. The high-speed switch- Typical Operating Circuit ing performance guarantees 1.5GHz operation and less 3.0V TO than 87ps (max) skew between channels. 3.6V 0.1F 0.01F LVDS inputs and outputs are compatible with the VCC TIA/EIA-644 LVDS standard. The LVDS outputs drive Z = 50 INA OUTA0 Z = 50 0 0 100 loads. The MAX9394/MAX9395 are offered in a 100 100 32-pin TQFP package and operate over the extended MAX9394 temperature range (-40C to +85C). Z = 50 INA MAX9395 OUTA0 Z0 = 50 0 LVDS Applications INB0 OUTA1 Z = 50 RECEIVER 0 INB0 High-Speed Telecom/Datacom Equipment INB1 OUTA1 Z0 = 50 Central Office Backplane Clock Distribution INB1 DSLAM Z = 50 ENA0 OUTB 0 ENA1 Protection Switching ENB OUTB Z = 50 0 LVCMOS/LVTTL Fault-Tolerant Systems LOGIC INPUTS LB SELA LB SELB BSEL GND GND GND GND Pin Configurations and Functional Diagram appear at 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.2:1 Multiplexers and 1:2 Demultiplexers with Loopback ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +4.1V Operating Temperature Range ...........................-40C to +85C CC IN , IN , OUT , OUT , EN , SEL, LB SEL Junction Temperature......................................................+150C 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 , LB SEL ) ..2kV Continuous Power Dissipation (T = +70C) Soldering Temperature (10s)...........................................+300C A 32-Pin TQFP (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) (MAX9394), V = +0.06V to (V - 0.05V) CC L CC CM CC CM CC (MAX9395), T = -40C to +85C, unless otherwise noted. Typical values are at V = 3.3V, V = 0.2V, V = 1.2V, T = +25C.) A CC ID CM A (Notes 1, 2, and 3) PARAMETER SYMB O L CONDITIONS MIN TYP MAX UNITS LVCMOS/LVTTL INPUTS (EN , BSEL, LB 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 = 0V to 0.8V 0 10 A IL IN DIFFERENTIAL INPUTS (IN , IN ) Differential Input Voltage V V > 0V and V < V , Figure 1 0.1 3.0 V ID ILD IHD CC V - CC MAX9394 0.05 0.6 Input Common-Mode Range V V CM V - CC MAX9395 0.6 0.05 MAX9394 V < 3.0V -75 10 I , ID IN Input Current A I IN MAX9395 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 MAX9394/MAX9395