MAX7452 Datasheet, PDF (1/4 Pages) Maxim Integrated Products – MAX7452 Evaluation Kit

19-3429; Rev 0; 9/04
MAX7452 Evaluation Kit
General Description
The MAX7452 evaluation kit (EV kit) is a fully assembled
and tested surface-mount circuit board that contains
the MAX7452. The MAX7452 is a low-cost, high-perfor-
mance, complete front-end video-signal conditioner
with automatic gain control (AGC) and a user-
adjustable back-porch clamp. The device includes an
out-of-band noise filter, back-porch clamp, loss-of-sync
(LOS) detector, ±6dB of AGC, and an output buffer
capable of driving either a 150Ω video load or a high-
impedance load. These features optimize the video
signal quality for further video processing through a
crosspoint device or video decoder. The EV kit oper-
ates from a single +5V power supply.
Features
♦ Single +5V Supply Operation
♦ Adjustable Back-Porch Clamp
♦ Output Buffer Drives Standard Video Load
♦ Jumper-Selectable Output Buffer Gain of 0dB or
+6dB
♦ Input Fault Detection with LOS Output
♦ AGC (±6dB Range)
♦ Jumper-Selectable AGC Enable/Disable
♦ Standard 75Ω Input/Output Termination
♦ Jumper-Selectable Input/Output Termination
♦ Surface-Mount Components
♦ Fully Assembled and Tested
Component List
DESIGNATION QTY
DESCRIPTION
1µF ±10%, 10V X5R ceramic
C1
1 capacitor (0603)
TDK C1608X5R1A105K
C2, C3
IN, OUT
JU1, JU2
JU3, JU4
R1, R2
U1
—
—
0.1µF ±10%, 25V X7R ceramic
2 capacitors (0603)
TDK C1608X7R1E104K
2
75Ω PC board mount BNC
connectors
2 2-pin headers
2 3-pin headers
2 75Ω ±1% resistors (0805)
1 MAX7452ESA (8-pin SO-EP)
4 Shunts
1 MAX7452 PC board
Component Suppliers
SUPPLIER PHONE
FAX
WEBSITE
TDK
847-803-6100
847-390-4405
www.component
.tdk.com
Note: Indicate that you are using the MAX7452 EV kit when
contacting this supplier.
Ordering Information
PART
TEMP RANGE
MAX7452EVKIT
0°C to +70°C
*EP = Exposed paddle.
IC PACKAGE
8 SO-EP*
Quick Start
Recommended Equipment
• +5VDC power supply
• Adjustable reference voltage (1V to 3V) or power sup-
ply
• Video-signal generator (e.g., Tektronix TG-2000)
• Video measurement equipment (e.g., Tektronix VM-
700A)
Procedure
The MAX7452 EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not
turn on the power supply until all connections are
completed:
1) Verify that a shunt is installed across jumper JU1
(75Ω input termination).
2) Verify that a shunt is not installed across jumper
JU2 (75Ω output series termination).
3) Verify that a shunt is installed across pins 1 and 2 of
jumper JU3 (gain = 2).
4) Verify that a shunt is installed across pins 2 and 3 of
jumper JU4 (AGC enabled).
5) Connect the output of the video-signal generator to
the IN BNC connector on the MAX7452 EV kit.
________________________________________________________________ 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.