View MAX3805EVKIT_4144570.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

19-2965; Rev 0; 8/03
MAX3805 Evaluation Kit
_______________ General Description
The MAX3805 DC-coupled evaluation kit (EV kit) simplifies evaluation of the MAX3805 10.7Gbps adaptive equalizer. The EV kit enables full testing of device functions. SMA connectors with 50 controlledimpedance transmission lines to the MAX3805 are provided for all CML input and output ports.
_________________________Features

DC-Coupled Evaluation Kit SMA Connectors for All High-Speed Inputs and Outputs Fully Assembled and Tested
Evaluates: MAX3805
_______________ Ordering Information
PART TEMP. RANGE MAX3805EVKIT -40C to +85C IC PACKAGE 16 QFN
________________________ Quick Start
Note: The MAX3805 EV kit is a DC-coupled evaluation board. Use external coupling capacitors on the input and output when AC-coupling is desired. DC-coupled operation with positive VCC supplies can cause permanent damage to laboratory test equipment (oscilloscope, BERT). The MAX3805 EV kit must be operated from a negative VEE supply when DC-coupled to normal laboratory equipment.
____________________ Component List
DESIGNATION C1-C5 C6 C7-C10 J1-J4 JP1-JP5 GND, VCC, VCC1, VCC2, VEE, TP4, TP5, TP9, TP10 R7 U1 None None None QTY 5 1 4 4 5 9 1 1 3 1 1 DESCRIPTION 0.1F +10% ceramic capacitor (0402) 0.1F +10% ceramic capacitor (0603) 33F +10% tantalum capacitors (case-B) SMA connectors, tab contact 2-pin headers, 0.1in centers Test points Digi-Key 5000K-ND 500k Variable resistor MAX3805 ETE Shunts MAX3805 EV board MAX3805 data sheet 2) 3) 1)
Connect a -3.3V power supply to VEE. Connect the power supply ground to GND and VCC. Remove shunt on JP1; install shunts on JP2 and JP3. Connect TP9 to TP10. Apply a differential 9.953Gbps input signal (400mVP-P to 1200mVP-P) between SMA connectors J1 and J2, (SDI+ and SDI-) Attach a differential high-speed oscilloscope with a 50 input to SMA connectors J4 and J3 (SDO+ and SDO-) to observe the output of the equalizer.
4)
______________ 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
Note: Please indicate that you are using the MAX3805 when ordering from these suppliers.
_________________________________________________________________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.
MAX3805 Evaluation Kit
_Alternative
Evaluates: MAX3805
Connect a +3.3V power supply to VCC. Connect a +1.8V power supply to VCC1 and VCC2. Connect the powersupply ground to GND. Remove shunts JP2 and JP3. Install shunt JP1. Use external AC-coupling capacitors for connecting to external laboratory equipment (oscilloscope, BERT).
AC-Coupled Operation with VCC1 = VCC2 = +1.8V
Supply Configurations
DC-Coupled Operation _____with Oscilloscope and BERTs
The MAX3805 is designed with DC-coupled inputs and outputs, implemented with internal 50 terminations to VCC1 (SDI+) and VCC2 (SDO+). Laboratory oscilloscopes and BERTs normally terminate their inputs and outputs with 50 to ground. When the MAX3805 VCCs are connected to positive supply, a DC path exists from the power supply to the ports of the oscilloscope or BERT. This configuration can cause permanent damage to the oscilloscope or BERT. When the MAX3805 EV kit is being used with normal oscilloscopes or BERTs, either external AC-coupling must be provided or VCC1 and VCC2 must be connected to ground (i.e., using a negative VEE supply). Failure to do so may permanently damage laboratory equipment.
DC-Coupled Operation with Laboratory Equipment
Connect a +1.5V power supply to VCC. Connect a -1.8V power supply to VEE. Connect the power-supply ground to GND. Install shunts on JP2 and JP3. Remove shunt on JP1. With this setup the part can be DCcoupled to external laboratory equipment (oscilloscope, BERT)
Figure 1. MAX3805 EV kit Schematic
2________________________________________________________________________________
.
MAX3805 Evaluation Kit Evaluates: MAX3805
Figure 2. MAX3805 Component Placement Guide
Figure 3. MAX3805 PC Board Layout - Component Side
_________________________________________________________________________________________
3
MAX3805 Evaluation Kit Evaluates: MAX3805
Figure 4. MAX3805 PC Board Layout - Ground Plane
Figure 5. MAX3805 PC Board Layout - Power Plane
4________________________________________________________________________________
.
MAX3805 Evaluation Kit Evaluates: MAX3805
Figure 6. MAX3805 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
2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
This datasheet has been download from: www..com Datasheets for electronics components.

▲Up To Search▲

Price & Availability of MAX3805EVKIT

	To Download MAX3805EVKIT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .