MAX11504EVKIT [MAXIM]
Single 5V Supply Operation;
| 型号： | MAX11504EVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Single 5V Supply Operation |
| 文件： | 总7页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-4046; Rev 0; 2/08
MAX11504 Evaluation Kit
Evluates:4/MAX105
General Description
Features
The MAX11504 evaluation kit (EV kit) is a fully assem-
bled and tested surface-mount printed-circuit board
(PCB) that contains a MAX11504 IC. The MAX11504 is
a 4-channel video reconstruction filter and buffer for
standard-definition television (SDTV) applications. The
filter’s passband is typically 8.6MHz. The MAX11504
♦ Single 5V Supply Operation
♦ Output Buffer Drives Two 150Ω Standard Video
Loads with a +6dB Gain
♦ Four Standard-Definition Television Video Filters
♦ AC- or DC-Coupled Inputs and Outputs
includes a +6dB output buffer capable of driving 2V
P-P
♦ Standard 75Ω Input/Output Terminations
into two standard 150Ω loads.
♦ Also Evaluates the MAX11505 (After IC
The video input and output signals on the EV kit can be
AC- or DC-coupled. The MAX11504 video input termi-
nals are terminated at 75Ω and the output terminals are
75Ω back terminated. The EV kit operates from a single
5V DC power supply. The MAX11504 EV kit can also
evaluate the MAX11505 IC. Request a free MAX11505
IC sample from the factory when ordering the
MAX11504 EV kit.
Replacement)
♦ Surface-Mount Components
♦ Fully Assembled and Tested
Ordering Information
PART
TYPE
EV Kit
MAX11504EVKIT+
+Denotes lead-free and RoHS-compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
IN1–IN4%
8
1µF 10ꢀ% 6.ꢁV X5R ceramic
capacitor (060ꢁ)
Test points
OUT1–OUT4
C1
1
Murata GRM188R60J105K
TDK C1608X5R0J105K
JU1–JU16
R1–R9
16 2-pin headers
9
ꢁ
4
4
75Ω 1ꢀ resistors (060ꢁ)
R10% R11% R12
R1ꢁ–R16
150Ω 1ꢀ resistors (060ꢁ)
820kΩ 5ꢀ resistors (060ꢁ)
120kΩ 5ꢀ resistors (060ꢁ)
0.1µF 10ꢀ% 16V X7R ceramic
capacitors (060ꢁ)
Murata GRM188R71C104K
TDK C1608X7R1C104KT
C2–C6%
C12–C15
9
5
9
R17–R20
Four-channel% standard-definition
®
220µF 20ꢀ% 6.ꢁV aluminum
electrolytic capacitors (6.ꢁ x 6.0)
SANYO 6CE220AX
U1
1
video filter (10-pin µMAX )
C7–C11
Maxim MAX11504CUB+
—
—
16 Shunts
PCB: MAX11504 Evaluation Kit+
IN_1–IN_4%
OUT_1A%
OUT_1B% OUT_2%
OUT_ꢁ% OUT4
1
75Ω BNC PCB-mount connectors
Component Suppliers
SUPPLER
PHONE
WEBSITE
Murata Mfg. Co.% Ltd.
SANYO North America Corp.
TDK Corp.
770-4ꢁ6-1ꢁ00
619-661-68ꢁ5
847-80ꢁ-6100
www.murata.com
www.sanyodevice.com
www.component.tdk.com
Note: Indicate that you are using the MAX11504 or MAX11505 when contacting these component suppliers.
µMAX is a registered trademark of Maxim Integrated Products% Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX11504 Evaluation Kit
Quick Start
Detailed Description of Hardware
The MAX11504 EV kit is a fully assembled and tested
surface-mount PCB that contains a MAX11504 IC. The
MAX11504 is a four-channel video reconstruction filter
and buffer for SDTV applications. The MAX11504 filter
typically has ꢁdB attenuation at 8.6MHz and 50dB
attenuation at 27MHz. The device includes a +6dB out-
Recommended Equipment
Before beginning% the following equipment is needed:
• 5V% 150mA DC power supply (VCC)
• Video signal generator (e.g.% Tektronix TG-2000 or
similar)
• Video measurement equipment (e.g.% Tektronix
VM700T or similar)
put buffer capable of driving a 2V
video signal into
P-P
two standard 150Ω loads.
The MAX11504 EV kit has four input channels to accept
composite and component video input signals. Each
output from the MAX11504 EV kit is capable of driving a
75Ω load to ground. This is equivalent to driving two
sets of 150Ω loads in parallel to ground.
Procedure
The MAX11504 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
All the input and output signals on the MAX11504 EV kit
can be configured for AC- or DC-coupling. The EV kit’s
input terminals are 75Ω terminated and the video out-
put terminals are each back terminated with 75Ω.
1) Verify that no shunts are installed across jumpers
JU1–JU4 (AC-coupled inputs).
2) Verify that no shunts are installed across jumpers
JU5–JU8 (no DC bias input).
MAX11505 Evaluation
The MAX11504 EV kit can also evaluate the MAX11505
IC. To evaluate the MAX11505% replace the IC (U1) with
the MAX11505 IC. Refer to the MAX11505 IC data
sheet for additional information.
ꢁ) Verify that no shunts are installed across jumpers
JU9% JU10% JU11 (one video load).
4) Verify that no shunts are installed across jumpers
JU12–JU16 (AC-coupled outputs).
5) Connect the output of the video signal generator to
the IN_1 BNC connector on the MAX11504 EV kit.
Jumper Selection
Input Coupling
The MAX11504 IC features a transparent clamp at the
video inputs that allows either AC- or DC-coupling. If the
input signal remains above ground% the transparent clamp
is inactive% offering true DC input coupling. If the signal
drops below ground% the inputs must be AC-coupled. The
transparent clamp will set the sync tip just below ground.
6) Connect the OUT_1A BNC connector on the EV kit
to the input of the video measurement equipment.
7) Connect the power-supply ground to the GND pad
on the EV kit.
8) Connect the 5V supply to the VCC pad on the EV kit.
Evluates:4/MAX105
9) Set the video signal generator for the desired video
input signal. Since the input is AC-coupled and not
biased% the signal should be a unipolar signal such
as R% G% B% or Y.
The MAX11504 EV kit provides an option to configure
the MAX11504 inputs to AC- or DC-coupling. Jumpers
JU1–JU4 configure the input coupling for the
MAX11504 EV kit. See Table 1 for shunt positions.
10) Turn on the power supply% and enable the video
signal generator.
Table 1. JU1–JU4 Jumper Selection
11) Analyze the video output signal.
COUPLING
CONFIGURATION
SHUNT POSITION
Installed
DC-coupling
AC-coupling
Not installed*
*Default position.
2
_______________________________________________________________________________________
MAX11504 Evaluation Kit
Evluates:4/MAX105
Output Coupling
DC Bias for YPbPr Signals
When configuring the EV kit video inputs for AC-
coupled operation% the correct DC bias point has to be
chosen% depending on the input signal. Unipolar sig-
nals% such as R% G% B% and Y% are biased correctly using
the MAX11504 internal transparent clamp. For bipolar
The MAX11504 EV kit provides an option to configure
the MAX11504 outputs to AC- or DC-coupling. Jumpers
JU12–JU16 configure the output coupling for the
MAX11504 EV kit. See Table 2 for shunt positions.
signals% such as P and P % a constant DC bias voltage
B
R
Table 2. JU12–JU16 Jumper Selection
has to be applied after the AC-coupling capacitor to
make sure that the clamp never operates. A 590mV DC
bias voltage can be applied by installing shunts across
jumpers JU5–JU8. To configure the inputs to a different
DC bias voltage% replace resistors R17–R20. See Table
4 for input clamp configuration.
COUPLING
SHUNT POSITION
CONFIGURATION
Installed
DC-coupling
AC-coupling
Not installed*
*Default position.
Table 4. Input Clamp Operation (JU5–JU8)
Output Channel 2, 3, and 4 Load
(OUT_2, OUT_3, OUT_4)
The MAX11504 EV kit provides an option to fully load
the output channels (2% ꢁ% and 4) of the MAX11504.
Jumpers JU9% JU10% and JU11 configure channel 2%
channel ꢁ% and channel 4 output loads% respectively% on
the MAX11504 EV kit. See Table ꢁ for shunt positions.
SHUNT
EV KIT FUNCTION
POSITION
Installed
DC bias enabled: Use for Pb% Pr signals
Not installed*
*Default position.
DC bias disabled: Use for R% G% B% Y signals
Table 3. JU9, JU10, JU11 Jumper
Selection (OUT_2, OUT_3, OUT_4)
SHUNT POSITION
OUTPUT LOAD (Ω)
Installed
75
Not installed*
150
*Default position.
_______________________________________________________________________________________
3
MAX11504 Evaluation Kit
Evluates:4/MAX105
Figure 1. MAX11504 EV Kit Schematic
4
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MAX11504 Evaluation Kit
Evluates:4/MAX105
Figure 2. MAX11504 EV Kit Component Placement Guide—Component Side
_______________________________________________________________________________________
5
MAX11504 Evaluation Kit
Evluates:4/MAX105
Figure ꢁ. MAX11504 EV Kit PCB Layout—Component Side
6
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MAX11504 Evaluation Kit
Evluates:4/MAX105
Figure 4. MAX11504 EV Kit PCB 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 _____________________ 7
© 2008 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products% Inc.
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