MAX3885 19-4767 Rev 4 12/07 +3.3V, 2.488Gbps, SDH/SONET 1:16 Deserializer with LVDS Outputs General Description Features The MAX3885 deserializer is ideal for converting Single +3.3V Supply 2.488Gbps serial data to 16-bit wide, 155Mbps parallel 2.488Gbps Serial to 155Mbps Parallel Conversion data in SDH/SONET applications. Operating from a sin- gle +3.3V supply, this device accepts PECL serial 660mW Operating Power clock and data inputs, and delivers low-voltage differ- LVDS Data Outputs and Synchronization Inputs ential-signal (LVDS) clock and data outputs for interfac- ing with high-speed digital circuitry. It also provides an Self-Biasing PECL Inputs Ease AC Coupling LVDS synchronization input that enables data realign- Synchronization Inputs for Data Realignment and ment and reframing. The MAX3885 is available in the extended temperature range (-40C to +85C) in a 64- Reframing pin TQFP package. Applications Ordering Information 2.488Gbps SDH/SONET Transmission Systems PART TEMP RANGE PIN-PACKAGE Add/Drop Multiplexers MAX3885ECB -40C to +85C 64 TQFP MAX3885ECB+ -40C to +85C 64 TQFP Digital Cross Connects +Denotes a lead-free package. Pin Configuration appears at end of data sheet. Typical Operating Circuit V = +3.3V CC V = +3.3V CC V CC V = +3.3V CC 133 133 PD15+ 100* SD+ PD15- OVERHEAD MAX3875 SD- TERMINATION 86.6 86.6 MAX3885 DATA PD0+ AND SERIAL DATA CLOCK 100* INPUTS V = +3.3V CC RECOVERY PD0- 133 133 PCLK+ 100* SCLK+ PCLK- SCLK- SYNC+ 86.6 86.6 SYNC- GND *REQUIRED ONLY IF OVERHEAD CIRCUIT DOES NOT INCLUDE INTERNAL INPUT TERMINATION. THIS SYMBOL REPRESENTS A TRANSMISSION LINE OF CHARACTERISTIC IMPEDANCE Z = 50. 0 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE+3.3V, 2.488Gbps, SDH/SONET 1:16 Deserializer with LVDS Outputs ABSOLUTE MAXIMUM RATINGS Positive Supply Voltage (V )...............................-0.5V to +7.0V Operating Temperature Range ...........................-40C to +85C CC Input Voltage Level (all inputs)...................-0.5V to (V + 0.5V) Storage Temperature Range .............................-60C to +160C CC Output Current LVDS outputs .............................................10mA Lead Temperature (soldering, 10sec) .............................+300C Continuous Power Dissipation (T = +85C) A TQFP (derate 24mW/C above +85C).......................1000mW 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, differential loads = 1001%, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.3V, CC A CC T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current I 200 280 mA CC PECL INPUTS (SD+/-, SCLK+/-) Input High Voltage V V - 1.16 V - 0.88 V IH CC CC Input Low Voltage V V - 1.81 V - 1.48 V IL CC CC Input High Current I V = V -900 900 A IH IN IH(MAX) Input Low Current I V = V -900 900 A IL IN IL(MIN) LVDS INPUTS AND OUTPUTS (SYNC+/-, PCLK+/-, PD +/-) Input Voltage Range V Differential input voltage = 100mV 0 2.4 V I Differential Input Threshold V Common-mode voltage = 50mV -100 100 mV IDTH Threshold Hysteresis V 78 mV HYST Differential Input Resistance R 85 100 115 IN Output High Voltage V 1.475 V OH Output Low Voltage V 0.925 V OL Differential Output Voltage V Figure 1 250 400 mV OD Change in Magnitude of Differential Output Voltage for Complementary V 25 mV OD States Output Offset Voltage V 1.125 1.275 V OS Change in Magnitude of Output Offset Voltage for Complementary V 25 mV OS States Single-Ended Output Resistance R 40 95 140 O Change in Magnitude of Single- Ended Output Resistance for R 2.5 10 % O Complementary Outputs AC ELECTRICAL CHARACTERISTICS (V = +3.0V to +3.6V, differential loads = 1001%, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.3V, CC A CC T = +25C.) (Note 1, Figure 4) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Maximum Serial Clock Frequency f 2.488 GHz SCLK Serial Data Setup Time t 100 ps SU Serial Data Hold Time t 100 ps H Parallel Clock-to-Data Output Delay t 200 450 900 ps CLK-Q Note 1: AC Characteristics guaranteed by design and characterization. 2 MAX3885