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| 19-2766; Rev 0; 2/03 MAX3882 Evaluation Kit _______________ General Description The MAX3882 evaluation kit (EV kit) simplifies evaluation of the MAX3882 2.488/2.667Gbps CDR with 1:4 demultiplxing. The EV kit enables testing of all the device's functions. SMA connectors with 50 controlled impedance connections to the MAX3882 are provided for the NRZ data input and LVDS data outputs, as well as system loopback functions. The 50 connectors allow for direct connection with high-speed test equipment. _________________________Features SMA Connectors for All High-Speed Inputs and Outputs Test Point for Monitoring Loss-of-Lock Single +3.3V Power-Supply Operation Fully Assembled and Tested Evaluates: MAX3882 ____________________ Component List DESIGNATION C1-C7, C17, C19-C32 C8-C13, C18 C14 C15 C16 D1 J15, J19, J21, J22 J16-J18, J20, J24-J25 J1-J14, J29-J32 J26-J28 L1-L3 R1-R5, R10 R6 R8 R9 UI QTY 23 DESCRIPTION 0.1F 10% Ceramic Capacitor (0402) 1000pF 10% Ceramic Capacitor (0402) 33F Tantalum Capacitor +10% 2.2F Tantalum Capacitor +10% 0.068F 10% Ceramic Capacitor (0402) LED 1X2 Pin Header (0.1" centers) 1X3 Pin Header (0.1" centers) SMA Connector EDGE MOUNT (TAB CONTACT) Test Point 56nH Coilcraft 100 1% Resistor (0402) 402 5% Resistor (0402) 20k Variable Resistor 20k 5% Resistor (0402) MAX3882 36QFN SHUNT MAX3882 Datasheet ______________Component Suppliers SUPPLIER Digi-Key Murata Coilcraft AVX PHONE 218-681-6674 814-237-1431 847-639-6400 803-946-0690 FAX 218-681-3380 814-238-0490 847-639-1469 803-626-3123 7 1 1 1 1 4 6 18 3 3 6 1 1 1 1 14 Note: Please indicate that you are using the MAX3882 when ordering from these suppliers. ______________ Ordering Information PART MAX3882EVKIT TEMP. RANGE -40C to +85C IC PACKAGE 36 pin QFN ________________________ Quick Start 1) 2) Connect a +3.3V power supply to J26 (Vcc). Connect power supply ground to J27. Connect the three-lead jumper J20 center pin to VCC, FREFSET (J24) center pin to GND, SIS (J16) center pin to GND, LREF (J18) center pin to Vcc, J17 center pin to LREF (J18) by connecting it to the upper pin. For 2.488Gbps use, connect the RATESET (J25) center pin to GND. For 2.667Gbps use, connect the RATESET (J25) center pin to Vcc. Connect between a 10mVP-P to 1600mVP-P differential input signal on SDI+ (J1-J2) by using SMA cables suitable for 2.488Gbps or 2.667Gbps. Remove the 100 resistor R4 and R5 to avoid double termination. Connect the output clock and data signals (J13, J14, J11, and J12 respectively) to a 50 high-speed oscilloscope to view the output signals. 3) 4) 5) 6) 7) _________________________________________________________________Maxim Integrated Products 1 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. MAX3882 Evaluation Kit _______________ Detailed Description Evaluates: MAX3882 The MAX3882 EV Kit is fully assembled and factory tested. It enables testing of all MAX3882 functions. Connections The MAX3882 EV Kit provides on-board connectors for all data and clock I/O ports. The serial data and system loopback inputs (SDI+ and SLBI+) can be connected directly to a 50 source. Jumpers PLL frequency lock condition can be monitored at the high-impedance LOL test point. A TTL high for LOL (LED off) indicates PLL frequency lock. A TTL low for LOL (LED on) indicates loss-of-lock. 2 _________________________________________________________________________________________ MAX3882 Evaluation Kit Evaluates: MAX3882 Figure 1. MAX3882 EV Kit Schematic _________________________________________________________________________________________ 3 MAX3882 Evaluation Kit Evaluates: MAX3882 Figure 2. MAX3882 EV Kit Component Placement Guide-Component Side 4 _________________________________________________________________________________________ MAX3882 Evaluation Kit Evaluates: MAX3882 Figure 3. MAX3882 EV Kit PC Board Layout-Component Side _________________________________________________________________________________________ 5 MAX3882 Evaluation Kit Evaluates: MAX3882 Figure 4. MAX3882 EV Kit PC Board Layout-Ground Plane 6 _________________________________________________________________________________________ MAX3882 Evaluation Kit Evaluates: MAX3882 Figure 5. MAX3882 EV Kit PC Board Layout-Power Plane _________________________________________________________________________________________ 7 MAX3882 Evaluation Kit Evaluates: MAX3882 Figure 6. MAX3882 EV Kit PC Board Layout-Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 ___________________ Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. |
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