MAX3622EVKIT#

19-4034; Rev 0; 2/08 EVALUATION KIT AVAILABLE MAX3622 Evaluation Kit The MAX3622 evaluation kit (EV kit) is an assembled demonstration board that provides convenient evaluation of the MAX3622 low-jitter, precision clock generator. The EV kit includes a 25MHz crystal on-board to allow immediate testing. The kit includes switches to allow easy control of the enable/disable functions. The clock outputs use SMA connectors and are AC-coupled to simplify connection to test equipment. ♦ AC-Coupled I/Os for Ease of Testing ♦ Fully Assembled and Tested ♦ +3.3V Power-Supply Operation ♦ 25MHz Crystal Included On-Board Ordering Information Component Suppliers PART TYPE SUPPLIER WEBSITE MAX3622EVKIT EV Kit NDK www.ndk.com Component List DESIGNATION QTY C1, C3, C4, C5, C11, C13, C14, C18, C19 9 C2 1 C6, C17, C20 3 C7 1 C9 1 C10 1 J1, J3, J5 J2, J48 J4 0 2 1 DESCRIPTION 0.1μF ±10% ceramic capacitors (0402) 10μF ±10% ceramic capacitor (0603) 0.01μF ±10% ceramic capacitors (0402) 4.7pF ±5% ceramic capacitor (0402) 33pF ±10% ceramic capacitor (0402) 27pF ±10% ceramic capacitor (0402) Not installed Test points 2-pin header, 0.1in. centers DESIGNATION QTY J6, J7, J18 L1 R1, R2 R3 R4 R5, R6 R11 SW1, SW2 TP6, TP7 U1 3 1 2 1 1 0 1 2 2 1 Y1 1 None None 1 1 DESCRIPTION SMA connectors 2.7μH inductor 150
±5% resistors (0402) 36
±5% resistor (0402) 499
±1% resistor (0402) Not installed 10.5
±1% resistor (0402) SPDT switches Test points MAX3622CUE+ 25MHz crystal NDK EXS00A-AT00429 Shunt PCB: MAX3622 Board, Rev A ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 Evaluates: MAX3622 Features General Description Evaluates: MAX3622 MAX3622 Evaluation Kit Quick Start To evaluate the MAX3622, configure the EV kit as follows: 1) Determine which output is going to be evaluated and connect to the test equipment through an SMA cable(s). 2) Connect a +3.3V power supply to J48 (VCC) and J2 (GND). Set the current limit to 200mA. 3) Enable the output under test by setting the related output-enable switch high. 4) The clock frequency at the LVCMOS output (QA_C) is 125MHz. The clock frequency at the LVPECL output is 156.25MHz. 5) Note that when the LVCMOS output is being evaluated, the amplitude seen on 50Ω test equipment is attenuated by the on-board circuitry. The voltage swing is approximately one-twelfth of what would be seen by directly connecting QA_C to a high-impedance input. Table 1. Adjustment and Control Descriptions (see Quick Start first) 2 COMPONENT NAME FUNCTION J4 INDUCTOR SW1 QB_OE Set high to enable LVPECL output QB. Set low to force a logic zero at QB. SW2 QAC_OE Set high to enable LVPECL output QA. Set low to force a logic zero at QA. J4 shunts the power-supply inductor. Normal operation is J4 shunted. _______________________________________________________________________________________ MAX3622 Evaluation Kit Evaluates: MAX3622 J4 L1 2.7μH J48 +3.3V C5 0.1μF J2 GND C14 0.1μF J6 C13 0.1μF C6 0.01μF TP7 J7 QB VCC TP6 QB VCC C17 0.01μF R2 150Ω C18 0.1μF R5 OPEN J1 C10 27pF R1 150Ω Y1 ALT GND R6 OPEN VCC J3 SW1 C9 33pF 16 15 OB_OE 14 GND 13 QB QB ALT GND 12 11 10 9 VCCO_B X_IN X_OUT GND J5 ALT GND MAX3622 QAC_OE GNDO_A QA_C VDDO_A VCC 1 SW2 C11 J18 0.1μF R4 499Ω 2 3 R3 36Ω 4 RES1 RES2 VCCA VCC 5 6 7 8 R11 10.5Ω VCC QA_C C7 4.7pF C20 0.01μF C19 0.1μF C1 0.1μF C2 10μF VCC C4 0.1μF C3 0.1μF Figure 1. MAX3622 EV Kit Schematic _______________________________________________________________________________________ 3 Evaluates: MAX3622 MAX3622 Evaluation Kit Figure 2. MAX3622 EV Kit Assembly Drawing—Top Side Figure 3. MAX3622 EV Kit Layout—Component Side 4 _______________________________________________________________________________________ MAX3622 Evaluation Kit Evaluates: MAX3622 Figure 4. MAX3622 EV Kit Layout—Ground Plane Figure 5. MAX3622 EV Kit Layout—Power Plane _______________________________________________________________________________________ 5 Evaluates: MAX3622 MAX3622 Evaluation Kit Figure 6. MAX3622 EV Kit Layout—Solder Plane Figure 7. MAX3622 EV Kit Assembly Drawing—Bottom Side 6 ______________________________________________________________________________________ Microsemi Corporation (NASDAQ: MSCC) offers a comprehensive portfolio of semiconductor solutions for: aerospace, defense and security; enterprise and communications; and industrial and alternative energy markets. Products include high-performance, high-reliability analog and RF devices, mixed signal and RF integrated circuits, customizable SoCs, FPGAs, and complete subsystems. Microsemi is headquartered in Aliso Viejo, Calif. Learn more at www.microsemi.com. Microsemi Corporate Headquarters One Enterprise, Aliso Viejo CA 92656 USA Within the USA: +1 (949) 380-6100 Sales: +1 (949) 380-6136 Fax: +1 (949) 215-4996 © 2012 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners.