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19-2803; Rev 0; 3/03
MAX7443 Evaluation Kit
General Description
The MAX7443 evaluation kit (EV kit) evaluates the MAX7443, a low-cost triple-channel video reconstruction filter for composite and S-video applications. The EV kit operates from a single +5V supply. The MAX7443 EV kit can also be used to evaluate the MAX7444, a similar device with a high-frequency boost option. o +5V Single Supply o Compatible with Standard Video Test Equipment o Surface-Mount Construction o Fully Assembled and Tested
Features
Evaluates: MAX7443/MAX7444
Component List
DESIGNATION QTY C1 1 DESCRIPTION 1F 20%, 6.3V X5R ceramic capacitor (0603) Taiyo Yuden JMK107BJ105MA 0.1F 10%, 16V X7R ceramic capacitors (0603) Taiyo Yuden EMK107BJ104KA TDK C1608X7R1C104KT 220F 20%, 6.3V aluminum electrolytic capacitors (6.3mm x 6.0mm) Sanyo 6CV220AX 3-pin headers 2-pin headers 75 1% resistors (0603) 200 1% resistors (0603) 162 1% resistors (0603) Two-circuit terminal block MAX7443ETA (8-pin thin QFN 3mm x 3mm) BNC PC board mount connectors Shunts MAX7443 PC board PART MAX7443EVKIT
Ordering Information
TEMP RANGE 0C to +70C IC PACKAGE 8 Thin QFN
Note: To evaluate the other device in the family, the MAX7444, request a free MAX7444ETA sample with the MAX7443EVKIT.
C2, C6, C7
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Quick Start
Recommended equipment: * Single 5.0VDC power supply * Video signal generator (e.g., Tektronix TG 2000) * Video measurement equipment (e.g., Tektronix VM 700A) The MAX7443 EV kit is a fully assembled and tested surface-mount board. Utilize the following steps to verify the board operation. Do not turn on the power supply until all connections are completed: 1) Verify that there are shunts installed on JU1 and JU3 (pins 1 and 2) and JU2 (pins 2 and 3). 2) Verify that there are shunts across jumpers JU4 and JU5. 3) Connect the luma output from the video signal generator to the YIN BNC connector on the EV kit. 4) Connect the chroma output from the video signal generator to the CIN BNC connector on the EV kit. 5) Connect the input of the video measurement equipment to the YOUT, COUT, or CVOUT BNC connectors on the EV kit.
C3, C4, C5
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JU1, JU2, JU3 JU4, JU5 R1-R5 R6, R7 R8, R9 TB1 U1 YIN, CIN, YOUT, CVOUT, COUT None None
3 2 5 2 2 1 1
5 5 1
Component Suppliers
SUPPLIER Sanyo Taiyo Yuden TDK PHONE 619-661-6322 800-348-2496 847-803-6100 FAX 619-661-1055 847-925-0899 847-390-4405 WEBSITE www.sanyo.com www.t-yuden.com www.component.tdk.com
Note: Please indicate that you are using the MAX7443/MAX7444 when contacting 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.
MAX7443 Evaluation Kit Evaluates: MAX7443/MAX7444
6) Connect the 5.0V supply to the terminal block labeled VCC. Connect the terminal labeled GND to the ground of the power supply. 7) Set the signal generator for the desired video signal, such as multiburst. 8) Turn on the 5.0VDC power supply. 9) Analyze any of the output signals with the VM700 video measurement. for selecting the input from either a video generator or a DAC (encoder). When interfacing to a video DAC or encoder output, the 200 termination resistor is provided on the board and selected by changing jumpers JU1 and JU3. A typical DAC termination resistor is 200. If the full-scale DAC output current is different than 5mA, change the 200 resistor accordingly to get 1V at the input of the MAX7443. The MAX7443 EV kit incorporates jumper JU2 to control the gain setting. Table 2 lists the JU2 functions.
Detailed Description
Jumper Selection
The MAX7443 EV kit provides options for evaluation with a video signal generator output or a current output video DAC (encoder). Table 1 lists the jumper settings
Evaluating MAX7444
The MAX7443 EV kit can be also used to evaluate the MAX7444. To evaluate the MAX7444, replace the MAX7443ETA with a MAX7444ETA.
Table 1. Jumpers JU1, JU3, JU4, and JU5 Functions
JU1 SHUNT LOCATION Pins 1 and 2 (default) Pins 2 and 3 All other combinations JU3 SHUNT LOCATION Pins 1 and 2 (default) Pins 2 and 3 INPUT TERMINATION () 75 200 Undefined
Note: To emulate a 200 DAC source resistor when driving from a 75 generator, remove jumpers JU4 and JU5. The 162 resistor added to the standard 75 termination equals approximately 200.
Table 2. JU2 Functions
JU2 SHUNT LOCATION Pins 1 and 2 Pins 2 and 3 Not installed GSET PIN Connected to VCC Connected to GND Not connected GAIN (dB) 9.5 6 12
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MAX7443 Evaluation Kit Evaluates: MAX7443/MAX7444
VCC TB1 VCC TB1-1 C1 1F GND R4 75 1% 1 JU1 2 3 R6 200 1% TB1-2 R8 162 1% C6 0.1F 1 YIN CVOUT 7 C2 0.1F 4 GND VCC JU2 1 5 VCC U1 GAIN 2 2 3 8 C3 220F 6.3V C4 220F 6.3V C5 220F 6.3V R1 75 1% R2 75 1% R3 75 1%
MAX7443
YOUT
1 2
YOUT BNC
YIN BNC 2
1
1 2
CVOUT BNC
JU4
3
CIN
COUT
6
1 2
COUT BNC
CIN BNC 2
1
R5 75 1% 1 JU3 2 3 R7 200 1%
R9 162 1%
C7 0.1F
JU5
Figure 1. MAX7443 EV Kit Schematic
_______________________________________________________________________________________
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MAX7443 Evaluation Kit Evaluates: MAX7443/MAX7444
Figure 2. MAX7443 EV Kit Component Placement Guide--Top Silkscreen
Figure 3. MAX7443 EV Kit PC Board Layout--Component Side
Figure 4. MAX7443 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.
4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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