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19-2186; Rev 0; 10/01
MAX9311 Evaluation Kit
General Description
The MAX9311 evaluation kit (EV kit) includes the MAX9311 low-skew, 1-to-10 differential driver designed for clock distribution. The MAX9311 EV kit supports LVECL/LVPECL testing up to 3GHz. The kit allows selection of two sources and reproduces the selected signal at 10 identical differential outputs. Inputs can be differential or single ended. Single-ended input operation is achieved by using the on-chip reference, VBB. The MAX9311 EV kit can also be used to evaluate the MAX9312, MAX9313, and MAX9314.
Features
o Controlled 50 Impedance: Microstrip o Input/Output Line Lengths Matched to < 1.5ps o LVPECL/LVECL and Differential HSTL Supply Range VCC - VEE = 2.25V - 3.8V o Footprint Compatible with MC100LVEP111 (MAX9311) o Fully Assembled and Tested
Evaluates: MAX9311-MAX9314
Component List
DESIGNATION QTY DESCRIPTION 10F, 10V tantalum capacitors (B case) AVX TAJB106K010R Sprague 293D106X9016B2T 0.1F ceramic capacitors (0603) 0.01F ceramic capacitors (0603) 100 1% 1/8W resistors (1206) 49.9 1% 1/16W resistors (0603) SMA connectors (PC edge mount) EFJohnson 142-0701-801 MAX9311 (32 LQFP) (no exposed paddle) PART MAX9311EVKIT
Ordering Information
TEMP. RANGE 0C to +70C IC PACKAGE 32 LQFP
C1, C7
2
Quick Start
The MAX9311 is specified with outputs terminated with 50 to VCC - 2V. This EV kit sets VCC = +2V and uses the 50-to-ground inputs of an oscilloscope to both measure and terminate the MAX9311 outputs. With VCC = +2V and VEE varied from -0.25V to -1.8V, the device sees a supply of 2.25V to 3.8V with the output termination voltage equaling zero (VCC - 2V). For 3.3V operation, for example, set VCC = +2V and V EE = -1.3V. Use 50 coax cables to connect the MAX9311 outputs to a scope with inputs set for 50. The scope inputs provide a 50 termination to zero. Input signals are referred to the shifted VCC and VEE supplies. The coax cables and 50 scope input provide a high bandwidth connection without the use of probes. The MAX9311 EV kit is fully assembled and tested. Do not turn on the power supplies until all connections are complete.
C2, C6, C9, C11, C12, C14 C3, C4, C5, C8, C10, C13, C15 R1-R9, R30-R34 R10-R29 J1-J26 U1
6 7 14 20 26 1
Component Suppliers
SUPPLIER AVX SpragueVishay PHONE FAX WEBSITE 843-946-0238 843-626-3123 www.avxcorp.com 402-563-6866 402-563-6296 www.vishay.com
Note: When contacting suppliers, please indicate that you are using the MAX9311-MAX9314.
________________________________________________________________ Maxim Integrated Products
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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.
MAX9311 Evaluation Kit Evaluates: MAX9311-MAX9314
Minimum Required Equipment
* Five matched SMA-male-to-SMA-male 50 coax cables for inputs: CLKSEL, CLK0, CLK0, CLK1, and CLK1 Two matched SMA-male-to-SMA-male 50 coax cables for outputs: Q0 and Q0 Two differential adjustable clock sources like the Agilent 8133A 3GHz pulse generator One single-ended adjustable clock select (CLKSEL) source One 10GHz bandwidth oscilloscope with 50 input impedance like the Tektronix 11801C digital sampling oscilloscope with the SD-24 sampling head Two power supplies Power supply 1: +2V with 1A current capability Power supply 2: adjustable -0.25V to -1.8V with 1A current capability
Detailed Description
Clock and Clock Select Inputs
All clock inputs are located on the left edge of the MAX9311 EV kit board. The board provides SMA connectors and 50 termination for all clock inputs. The MAX9311 features an on-chip reference voltage, VBB, allowing single-ended operation. Connect VBB to one of the differential inputs for single-ended operation. Single-ended operation is limited to 3V (VCC - VEE) 3.8V. Differential operation can be used throughout the full supply range: 2.25V (VCC - VEE) 3.8V. The clock select input accepts a single-ended input referenced to VCC. The clock select input has its own SMA connector and 50 termination on the board.
* * * *
*
Outputs
The 10 differential outputs are in numeric order and are located on the top, right, and bottom edges of the MAX9311 EV kit board. All outputs are terminated with 50 on the board. Note: When analyzing an output, remove the corresponding output termination resistor on the MAX9311 EV kit board. (The output is connected to test equipment that has a 50 input impedance.)
Procedure
1) Connect two of the five matched input cables to the first differential clock source. Then connect the other end of the cables to CLK0 and CLK0 on the MAX9311 EV kit board. 2) Connect two of the five matched input cables to the second differential clock source. Then connect the other end of the cables to CLK1 and CLK1 on the MAX9311 EV kit board. 3) Connect one of the five matched input cables to the single-ended clock select source. Then connect the other end of the cable to CLKSEL on the MAX9311 EV kit board. 4) Unsolder and remove the termination resistors located on the Q0 and Q0 outputs (R28 and R29). Make sure the input impedance of the oscilloscope is 50. 5) Connect the two matched output cables to the oscilloscope. Then connect the other end of the cables to Q0 and Q0 on the MAX9311 EV kit board. 6) Connect a +2VDC power supply to the pads labeled VCC on the MAX9311 EV kit board. This ensures that the outputs are loaded with 50 to VCC - 2V. 7) Connect a -1.3VDC power supply to the pads labeled VEE on the MAX9311 EV kit board. 8) Configure the adjustable clock sources to the desired input levels defined in the MAX9311/ MAX9313 IC data sheet. Note that VCC = +2V. 9) Enable all clock sources. 10) Verify the timing of the waveforms using the oscilloscope.
2
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VCC 1 Q0 1 Q0 1 R1 100 1% 2 VCC R29 49.9 1% C15 0.01F VCC 1 C2 0.1F C3 0.01F 2 CLKSEL Q3 R22 49.9 1% 3 CLK0 Q4 R21 49.9 1% Q4 21 1 R20 49.9 1% 5 VBB C4 0.01F Q5 20 1 R19 49.9 1% 6 CLK1 R6 100 1% 7 CLK1 R33 100 1% Q6 18 1 Q8 13 Q7 14 Q7 15 VCC0 16 Q6 17 VCC C10 0.01F C8 0.01F Q9 2 Q9 1 2 R10 49.9 1% Q8 1 2 R11 49.9 1% Q8 1 2 R12 49.9 1% Q7 1 2 R13 49.9 1% Q7 1 2 R14 49.9 1% R15 49.9 1% C11 0.1F R16 49.9 1% Q6 2 Q5 19 1 R18 49.9 1% R4 100 1% U1 4 CLK0 MAX9311 R5 100 1% 1 R32 100 1% R31 100 1% 2 22 1 Q4 2 R3 100 1% R30 100 1% 23 1 Q3 R23 49.9 1% 2 CLKSEL 1 2 VCC VCC0 Q0 Q1 1 Q0 Q1 Q2 Q2 Q3 32 31 30 29 28 27 26 25 VCC0 24 Q3 C13 0.01F C12 0.1F VCC R28 49.9 1% 2 R24 49.9 1% R25 49.9 1% R2 100 1% 1 Q2 2 R27 49.9 1% R26 49.9 1% 2 1 Q2 2 2 1
Q1 Q1
VCC
VCC
GND
C1 10F 10V
GND C14 0.1F
Figure 1. MAX9311 EV Kit Schematic
CLK0 1 2 CLK0 1 2 Q4 2 VBB 2 Q5 2 CLK1 1 2 Q5 2 CLK1 1 2 R7 100 1% VCC0 Q9 9 10 Q9 11 Q8 12 R34 100 8 VEE 1% 1 R17 49.9 1% Q6 2 C7 10F 10V R8 100 1% VCC C9 0.1F R9 100 1% C5 0.01F C6 0.1F 1
VEE
VEE
GND
Evaluates: MAX9311-MAX9314
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GND
MAX9311 Evaluation Kit
3
MAX9311 Evaluation Kit Evaluates: MAX9311-MAX9314
Figure 2. MAX9311 EV Kit Component Placement Guide-- Component Side
Figure 3. MAX9311 EV Kit PC Board Layout--Component Side
Figure 4. MAX9311 EV Kit PC Board Layout--Inner Layer 2 (GND) 4 _______________________________________________________________________________________
MAX9311 Evaluation Kit Evaluates: MAX9311-MAX9314
Figure 5. MAX9311 EV Kit PC Board Layout--Inner Layer 3 (VCC)
Figure 6. MAX9311 EV Kit PC Board Layout--Solder Side (VEE/GND)
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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