 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| 19-3287; Rev 1; 3/05 MAX3969 Evaluation Kit _______________ General Description The MAX3969 evaluation kit (EV kit) is a fully assembled and tested demonstration board for the MAX3969 limiting amplifier. The EV kit allows easy programming of the power-detect threshold, is designed for 50 test interfaces, and provides layout options for alternate output terminations. ___________________________ Features Easy +2.97V to +5.5V Electrical Evaluation Fully Assembled and Tested Easy Power-Detect Threshold Programming Designed for 50 Test Interfaces Allows Alternate Output Terminations Evaluates: MAX3969 ____________________Component List DESIGNATION C1, C10, C20 C2, C3, C4 C5 C6, C26 C7, C27 J1-J4 J5, J6, J7, TP1-TP13 JU2, JU4, JU6 JU2, JU4, JU6 L1, L2 R1 R2, R3, R10 R6 R7 R8 R11, R12 R5, R24, R25 R27, R28 R29, R30 SB9 U1 None QTY 3 3 1 2 2 4 16 3 3 2 1 3 1 1 1 2 3 2 2 1 1 1 DESCRIPTION 0.1F 10% ceramic capacitors (0402) 0.01F 5% ceramic capacitors (0402) 0.027F 10% ceramic capacitor (0603) 33F 10% tantalum capacitors AVX TAJB336K010R 3.3F 10% ceramic capacitors (0805) SMA connectors (edge mount) EF Johnson 142-0701-801 Test points Digi-Key 5000K-ND 2-pin headers, 0.1in centers Digi-Key S1012-36-ND Shunts Digi-Key S9000-ND 1.2H inductors Coilcraft 1008LS-122XJBC 10k 5% resistor (0402) Not installed 10k variable resistor 200k variable resistor 100k 5% resistor (0402) 84.5 1% resistors (0402) 49.9 1% resistors (0402) 4.7k 5% resistors (0402) 0 5% resistors (0402) Solder bridge, open MAX3969ETP 20-pin Thin QFN MAX3969ETP EV kit circuit board, Rev B ______________ Ordering Information PART MAX3969EVKIT TEMP RANGE -40C to +85C IC PACKAGE 20 Thin QFN _____________ Component Suppliers SUPPLIER AVX Coilcraft Digi-Key Murata PHONE 843-448-9411 847-639-6400 800-344-4539 770-436-1300 FAX 843-626-3123 847-639-1469 218-681-3380 770-436-3030 Note: Please indicate that you are using the MAX3969 when ordering from these suppliers. ________________________ Quick Start 1) 2) Remove the shunt from JU4 and place shunts on JU2 and JU6. Apply a 155Mbps differential signal (4mVP-P to 1.5VP-P) between SMA connectors J3 (IN-) and J4 (IN+). Connect an oscilloscope with 50 terminations to SMA connectors J1 (OUT-) and J2 (OUT+). (To avoid overloading the oscilloscope, use 20dB of attenuation between the outputs and the oscilloscope inputs.) Connect a +2V power supply to J5 (VCC), a -0.97 to -3.5V power supply to J7 (VEE), and the powersupply ground to J6 (GND). Monitor LOS by connecting a voltage meter between TP13 and TP6. Adjust the power-detect threshold with R6 and R7. 3) 4) 5) 6) ________________________________________________________________ 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. MAX3969 Evaluation Kit Evaluates: MAX3969 ______________ Detailed Description The MAX3969 EV kit simplifies evaluation of the MAX3969 limiting amplifier. The EV kit provides the external components necessary to evaluate all the MAX3969 functions. Monitoring LOS Outputs The EV kit provides 4.7k pullup resistors for the LOS outputs. Monitor LOS by connecting a voltage meter between TP13 and TP6. Monitor LOS by connecting a voltage meter between TP7 and TP6. PowerSetting the Power-Detect Threshold Jumpers JU4 and JU6 control the resistor used to set the power-detect threshold. To use the variable resistors R6 and R7, place a shunt on JU6 and remove the shunt from JU4. If a fixed resistor is required, solder a resistor to R10, remove the shunt from JU6, and place a shunt on JU4. DataData-Input Terminations The EV kit has a 100 differential-input termination. If the input is driven single-ended, terminate both sides of the input with 50 to ground by shorting solder bridge SB9. PECL-Output Terminations PECLThe data outputs (OUT+, OUT-) and signal detect output (SD) are PECL compatible and any standard termination technique can be used. Figure 1 illustrates typical DC and AC terminations. Monitor OUT+ and OUT- with a 50-terminated oscilloscope. To avoid overloading the oscilloscope, use 20dB of attenuation between the data outputs and the oscilloscope inputs. Monitor the SD output by connecting a voltage meter between TP12 and TP11. This will provide the output voltage relative to VCC. Enabling Squelch Function Jumper JU2 controls the squelch function. Place a shunt on JU2 to enable squelch. Remove the shunt from JU2 to disable squelch. Monitoring RSSI Output Test point TP1 provides access to the received-signalstrength-indicator (RSSI). Monitor RSSI by connecting a voltage meter between TP1 and TP6. 2 _________________________________________________________________________________________ MAX3969 Evaluation Kit Evaluates: MAX3969 DC-COUPLED PECL TERMINATION (DEFAULT) +2V V CC R29 0 20dB R2 OPEN R30 0 20dB Z O = 50 50 Z O = 50 50 OSCILLOSCOPE OUT- OUT+ MAX3969 SD R5 50 R3 OPEN V EE -0.97V TO -3.5V AC-COUPLED PECL TERM INATION +3.3V OR +5V V CC R29 0.1 F 20dB R2 OUT+ R30 0.1 F 20dB Z O = 50 50 Z O = 50 50 OSCILLOSCOPE OUT- MAX3969 SD R3 R5 V EE 0V SUPPLY 3.3V 5V R2, R3, R5 150 270 Figure 1. PECL-Output Terminations _________________________________________________________________________________________ 3 MAX3969 Evaluation Kit Evaluates: MAX3969 V CC R10 OPEN JU4 TP3 V CC R28 4.7k TP7 R27 4.7k V CC R7 200k R6 10k JU6 JU2 C1 0.1 F TP13 R8 100k TP5 V EE V CC C2 0.01 F TP2 2 3 4 5 1 TP12 20 V TH 19 SQUELCH 18 V CC 17 V CC 16 LOS 15 14 R5 49.9 R29 0 R2 OPEN J1 OUT13 12 V CC IN+ GND GND GND CZN CZP V CCO 11 C10 0.1 F R3 OPEN R30 0 J2 OUT+ INV FILTER LOS SD U1 OUT- J3 INR24 49.9 R25 49.9 C3 0.01 F TP1 R1 10k RSSI MAX3969 INOUT+ SB9 OPEN J4 IN+ C4 0.01 F 6 C20 0.1 F 7 8 9 10 C5 0.027 F V EE J5 VCC L1 1.2 H R11 84.5 TP10 TP11 V CC J6 GND L2 1.2 H R12 84.5 C6 33 F C7 3.3 F TP8 TP9 J7 VEE C26 33 F C27 3.3 F TP4 TP6 V EE Figure 2. MAX3969 EV Kit Schematic 4 _________________________________________________________________________________________ MAX3969 Evaluation Kit Evaluates: MAX3969 Figure 4. MAX3969 EV Kit PC Board Layout--Component Side Figure 3. MAX3969 EV Kit Component Placement Guide-- Component Side Figure 5. MAX3969 EV Kit PC Board Layout--Ground Plane Figure 6. MAX3969 EV Kit PC Board Layout--Power Plane _________________________________________________________________________________________ 5 MAX3969 Evaluation Kit Evaluates: MAX3969 Figure 7. MAX3969 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. 6 ____________________ Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products |
Price & Availability of MAX3969EVKIT
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |