Evaluates: MAX9205MAX9208 19-2252 Rev 0 12/01 MAX9205 Evaluation Kit General Description Features The MAX9205 evaluation kit (EV kit) is a fully assembled 3.3V Single Supply and tested circuit board that simplifies the evaluation of 10-Bit Parallel LVCMOS/LVTTL Interface the MAX9205 400Mbps, 10-bit serializer and the MAX9206 400Mbps, 10-bit deserializer. The MAX9205 Allows Common-Mode Testing IC transforms 10-bit parallel LVCMOS/LVTTL data into a Independent Evaluation of Serializer (MAX9205) serial high-speed bus low-voltage differential signaling (BLVDS) data stream. The MAX9206 accepts serial and Deserializer (MAX9206) data from the MAX9205 and transforms it back to 10-bit- Allows Testing of Twisted-Pair Cable wide LVCMOS/LVTTL parallel data. Low-Voltage, Low-Power Operation The EV kit requires a single 3.3V supply and a refer- ence clock input with a range of 16MHz to 40MHz to Fully Assembled and Tested operate. The 10-bit parallel input data is connected to a 24-pin header and the output data is sampled at a sep- arate 24-pin header. The EV kit circuit can be modified to isolate and evaluate the MAX9205 and MAX9206 independently. The MAX9205 and MAX9206 serializ- Ordering Information er/deserializer pair can be replaced with the MAX9207 and MAX9208 serializer/deserializer pair that operates PART TEMP RANGE IC PACKAGE at a higher maximum data-transfer speed of 600Mbps MAX9205EVKIT 0C to +70C 28 SSOP with a clock input frequency of 40MHz to 60MHz. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 10F 20%, 10V tantalum 10pF, 50V COG ceramic capacitors (B) capacitors (0603) C1C4 4 C27C38 12 AVX TAJB106M010 or TDK C1608COG1H100DT or Kemet T494B106K010AS Murata GRM39COG100D050AD J1, J2 2 2 x 12-pin headers 0.001F 5%, 50V ceramic JU1, JU3JU7 6 3-pin headers capacitors (0603) C5C11, C40 7 TDK C1608X7R1H102KT or JU2, JU9, Murata GRM39X7R102J050AD JU10, 19 2-pin headers JU12JU27 0.1F 10%, 16V ceramic C12C18, capacitors (0603) R1R10, R97 11 10k 5% resistors (0603) C21C25, C39, 14 TDK C1608X7R1C104KT or C41 R11R20, Murata GRM39X7R104K016AD R79R89, 0 Not installed, resistor (0603) R91R95 5.0pF, 50V COG ceramic capacitors (0603) R21R39, R96 20 49.9 1% resistors (0603) C19, C20 2 TDK C1608COG1H050CT R40 1 100 1% resistor (0603) Murata GRM39COG050B050AD R41R50, R75 0 Not installed, resistor (0805) 2.2F 20%, 10V tantalum R51, R52 0 Not installed, resistor (1206) C26 1 capacitor (A) R53R74, R77, AVX TAJA225M010R 24 499 1% resistors (0603) R78 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.MAX9205 Evaluation Kit Component List (contd) Part Selection Table DESIGNATION QTY DESCRIPTION REF SERIAL DATA CLOCK TRANSFER SYNC2, PART TYPE Not installed, SMA PC-mount RANGE RATE (Mbps) PWRDN1, DEN, 0 edge connector (MHz) (max) PWRDN2, REN MAX9205EAI Serializer 16 to 40 400 TCLK, SMA PC-mount edge MAX9206EAI Deserializer 16 to 40 400 REFCLK, 4 connectors MAX9207EAI Serializer 40 to 60 600 INA, INB MAX9208EAI Deserializer 40 to 60 600 U1 1 MAX9205EAI (28-pin SSOP) U2 1 MAX9206EAI (28-pin SSOP) 16MHz to 40MHz. Use LVCMOS/LVTTL levels. Note Buffer/driver three-state output that the TCLK SMA connector is terminated with a (48-pin TSSOP) U3 1 50 resistor. Synchronize the pulse generator with Texas Instruments the data generator. SN74ALVTH16244DGG 6) Set the data-acquisition system for LVCMOS/LVTTL- None 6 Shunts (JU1, JU3JU7) level signal input. None 1 MAX9205 PC board 7) Connect the data-acquisition system to the signal None 1 MAX9205 data sheet output 24-pin connector J2. See Table 2 for output None 1 MAX9205 EV kit data sheet bit locations. 8) Turn on the power supply. Quick Start 9) Enable the pulse generator. The MAX9205 EV kit is a fully assembled and tested surface-mount board. Follow the steps below for EV kit 10) Enable the data generator. circuit board operation. Do not turn on power supply 11) Enable the data-acquisition system and begin sam- or enable the function generators until all connec- pling data. tions are completed. Detailed Description Recommended Equipment The MAX9205 EV kit is a fully assembled and tested cir- 3.3VDC power supply cuit board that simplifies the evaluation of the MAX9205 Data generator for LVCMOS/LVTTL 10-bit parallel 400Mbps maximum data transfer rate, 10-bit serializer signal input (e.g., Tektronix DG2020) and the MAX9206 400Mbps maximum data transfer Clock pulse generator (e.g., HP 8130A) data rate, 10-bit deserializer. The serializer/deserializer data transfer starts with the serializer initially locking Logic analyzer or data-acquisition system onto the reference clock and then sending synchroniz- High-speed oscilloscope ing patterns to the deserializer. Once the deserializer locks onto the embedded clock in the patterns, it pulls Procedure the SYNC pin low on the serializer, signaling that it is 1) Verify that there is a shunt across pins 1 and 2 of ready to receive the serial data. The serializer trans- jumpers JU1 and JU3JU7. forms the LVCMOS/LVTTL-level 10-bit parallel data pat- 2) Verify that JU2 does not have a shunt. tern into a serial high-speed BLVDS data stream. The 3) Connect the 3.3V power supply to VCC1. Connect interconnect is terminated with 100 at each end of the the ground terminal of this supply to GND1. differential bus for a total 50 load. The MAX9206 deserializer accepts the serial data from the MAX9205 4) Connect the data generator to the 24-pin connector J1 and transforms it back to 10-bit-wide LVCMOS/LVTTL and set it to generate 10-bit parallel data at parallel data. LVCMOS/LVTTL levels (high-level input from 2.0V to The EV kit requires a single 3.3V supply to operate and VCC and low-level input from 0.8V to GND). See Table 2 for input bit locations. a reference clock input in the 16MHz to 40MHz range. The 10-bit parallel input data can be supplied to the 24- 5) Connect the pulse generator to SMA connector pin header J1 with a data generator running at the TCLK and set it for an output with a frequency of 2 Evaluates: MAX9205MAX9208