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19-1954; Rev 1; 5/02
MAX3800 Evaluation Kits
General Description
The MAX3800 evaluation kits (EV kits) simplify evaluation of the MAX3800 adaptive equalizer and cable driver. The EV kits enable testing of all the device's functions. SMA connectors with 50 controlled-impedance transmission lines to the MAX3800 are provided for all input and output ports.
Features
o SMA Connectors for All High-Speed Inputs and Outputs o Fully Assembled and Tested o Includes Potentiometer for Adjusting Driver Output Amplitude
Evaluate: MAX3800
Component List
DESIGNATION C1-C10, C13-C18, C21-25 QTY 21 DESCRIPTION 0.1F 10% ceramic capacitors (0603) Murata GRM39X7R104K016A 10F 10% tantalum capacitors C case AVX TAJC106K010 SMA edge-mount connectors EFJohnson 142-0701-801 or Digi-Key J502-ND Note: Cut center pin to approximately 1/16in length. Test points Digi-Key 5000K-ND 2-pin header, 0.1in centers Digi-Key S1012-36-ND Shunt Digi-Key S9000-ND 100k 5% resistors (0603) 20k variable resistor Bourns, Digi-Key 3296W-203-ND Test points Digi-Key 5000K-ND MAX3800UHJ (32-pin TQFP-EP) MAX3800UGJ (32-pin QFN) MAX3800 evaluation kit, rev B circuit board MAX3800 data sheet MAX3800 EV kit data sheet PART MAX3800EVKIT MAX3800UGJ-KIT
Ordering Information
TEMP RANGE 0C to +85C 0C to +85C IC PACKAGE 32 TQFP-EP 32 QFN
C11, C12
2
Component Suppliers
SUPPLIER AVX Digi-Key EFJohnson Murata PHONE 843-444-2863 218-681-6674 402-474-4800 415-964-6321 FAX 843-626-3123 218-681-3380 402-474-4858 415-964-8165
J1-J8
8
J9, J10, J11 JU1 JU1 R1, R2, R3 R4 TP1-TP7 U1* U1* None None None
3 1 1 3 1 7 1 1 1 1 1
Note: Please indicate that you are using the MAX3800 when contacting these component suppliers.
Quick Start
1) Connect a +3.3V power supply to J9 (VCCE) and J11 (VCCD). Connect the power-supply ground to J10. (Note: Placing a shunt on JU1 connects VCCE and VCCD.) Cable Driver 2) Connect a differential input signal (700mV differential voltage amplitude) to the cable driver input at SMA edge connectors J5 and J6. 3) Connect a 50 oscilloscope to SMA output connectors J7 and J8 to observe the output of the cable driver. 4) Potentiometer R4 (R MOD ) can be adjusted to change the cable driver output amplitude. Adaptive Cable Equalizer 5) Connect a differential input signal (700mV differential voltage amplitude) to a cable. Connect the other end of the cable to the cable equalizer inputs at SMA edge connectors J1 and J2.
*The MAX3800UHJ is included with the MAX3800EVKIT. The MAX3800UGJ is included in the MAX3800UGJ-KIT.
________________________________________________________________ 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.
MAX3800 Evaluation Kits Evaluate: MAX3800
VCCE J9
TP5
J10 VCCD
C11 10F
TP5 JU1 SMA J8 SMA J7
TP7 J11 C12 10F VCCD C25 0.1F C10 0.1F VCCD C24 0.1F TP4 VCCD C9 0.1F C23 0.1F 24 23 VCCD C8 0.1F C22 0.1F C21 0.1F VCCD 19 VCCE VCCD C7 0.1F J5 SMA TP3 18 J6 SMA R4 20k
C14 0.1F RMOD VCCE 1 VCCE C13 0.1F VCCE C1 0.1F J1 SMA J2 SMA VCCE C4 0.1F 6 C3 0.1F 5 C2 0.1F 3 2 GND 32 VCCD 31 GND 30 VCCD 29 DOUT28 DOUT+ 27 VCCD 26 GND 25
GND GND
22 VCCD VCCE DIN4 EIN+ 21
U1
DIN+ 20
EIN-
MAX3800
7 8
GND
LOS
EOUT+
EOUT-
CIM+
VCCE
GND
VCCE
GND
9 TP1
10
11 VCCE 12
13
VCCE 14
15
16 N.C.
R1 100k
C15 0.1F
TP2
C5 0.1F
C17 0.1F
C18 0.1F
C6 0.1F
R2 100k
C16 0.1F
J3 SMA
J4 SMA
Figure 1. MAX3800 Schematic
6) Connect a 50 oscilloscope to SMA edge connectors J3 and J4 to observe the output of the cable equalizer. 7) The cable integrity monitor (CIM) outputs can be monitored at TP1 (CIM-) and TP2 (CIM+).
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8) The loss-of-signal (LOS) output can be monitored at TP3.
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N.C.
CIM-
N.C.
17
N.C.
R3 100k
MAX3800 Evaluation Kits Evaluate: MAX3800
1.0"
Figure 2. MAX3800 EV Kit Component Placement Guide
1.0"
Figure 3. MAX3800 EV Kit PC Board Layout--Component Side
1.0"
Figure 4. MAX3800 EV Kit PC Board Layout--Ground Plane
1.0"
Figure 5. MAX3800 EV Kit PC Board Layout--Power Plane
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MAX3800 Evaluation Kits Evaluate: MAX3800
1.0"
Figure 6. MAX3800 EV Kit PC Board Layout--Solder Side
1.0"
Figure 7. MAX3800UGJ EV Kit--Component Placement Guide
1.0"
Figure 8. MAX3800UGJ EV Kit PC Board Layout--Component Side
1.0"
Figure 9. MAX3800UGJ EV Kit PC Board Layout--Ground Plane
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1.0"
Figure 10. MAX3800UGJ EV Kit PC Board Layout--Power Plane
1.0"
Figure 11. MAX3800UGJ 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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5 (c) 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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