MAX11501EVKIT+ [MAXIM]
Standard-Definition Television Video Filter;
| 型号： | MAX11501EVKIT+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Standard-Definition Television Video Filter |
| 文件： | 总7页 (文件大小：141K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0980; Rev 0; 9/07
MAX11501 Evaluation Kit
Evluates:/MAX1502
General Description
Features
The MAX11501 evaluation kit (EV kit) is a fully assembled
and tested surface-mount printed-circuit board (PCB)
that contains a MAX11501 IC. The MAX11501 is a triple
video filter and buffer for standard-definition television
(SDTV) applications. The filter’s passband is typically
8.6MHz. The MAX11501 includes a +6dB output buffer
♦ Single 5V Supply Operation
♦ Output Buffer Drives Two 150Ω Standard Video
Loads with a +6dB Gain
♦ Standard-Definition Television Video Filter
♦ AC- or DC-Coupled Inputs and Outputs
♦ Standard 75Ω Input/Output Terminations
capable of driving 2V
into two standard 150Ω loads.
P-P
The video input and output signals on the EV kit can be
AC- or DC-coupled. The MAX11501 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 MAX11501 EV kit can also
evaluate the MAX11502 IC. Request a free sample from
the factory when ordering the MAX11501 EV kit.
♦ Also Evaluates the MAX11502
(after IC replacement)
♦ Surface-Mount Components
♦ Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX11501EVKIT+
EV Kit
+Denotes lead-free and RoHS-compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
Maxim low-cost% 3-channel%
standard-definition video filter
MAX11501USA+ (8-pin Sꢁ)
1µF 10ꢀ% 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C105K
U1
1
C1
1
4
4
CIO% CꢁUT%
CVBSIO%
0.1µF 10ꢀ% 16V X7R ceramic
capacitors (0603)
C2–C5
C6–C9
CVBSꢁUT1%
CVBSꢁUT2%
YIO% YꢁUT
7
75Ω BOC PCB mount connectors
Murata GRM188R71C104K
220µF 20ꢀ% 6.3V ꢁS-CꢁO
capacitors (8mm x 6.9mm)
SAOYꢁ 6SVPA220MAA
GOD
2
6
Black PC mini test points
Red PC mini test points
IO1% IO2% IO3%
ꢁUT1% ꢁUT2%
ꢁUT3
JU1–JU12
R1–R7
12 2-pin headers
7
2
3
3
75Ω 1ꢀ resistors (0603)
R8% R9
150Ω 1ꢀ resistors (0603)
820kΩ 5ꢀ resistors (0603)
120kΩ 5ꢀ resistors (0603)
—
—
12 Shunts
PCB: MAX11501 Evaluation Kit+
R10% R11% R12
R13% R14% R15
1
Component Suppliers
SUPPLIER
PHONE
WEBSITE
Murata Mfg. Co.% Ltd. 770-436-1300 www.murata.com
SAOYꢁ OA Corp. 619-661-6835 www.sanyodevice.com
Note: Indicate that you are using the MAX11501 when contacting
these component suppliers.
________________________________________________________________ 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.
MAX11501 Evaluation Kit
The MAX11501 EV kit has three input channels to
Quick Start
Recommended Equipment
Before beginning% the following equipment is needed:
accept a full set of component video input signals.
Each output from the MAX11501 EV kit is capable of
driving a 75Ω load. This is equivalent to driving two sets
of 150Ω loads in parallel.
•
•
5V% 150mA DC power supply (VCC)
All the input and output signals on the MAX11501 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.
Video signal generator
(e.g.% Tektronix TG-2000 or similar)
•
The appropriate video measurement equipment
Procedure
Jumper Selection
The MAX11501 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.
Input Coupling (CVBSIN, YIN, and CIN)
The MAX11501 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 sets the sync tip just below ground.
1) Verify that no shunts are installed across jumpers
JU1% JU2% and JU3 (AC-coupled inputs).
2) Verify that no shunts are installed across jumpers
JU4–JU7 (AC-coupled outputs).
The MAX11501 EV kit provides an option to configure
the MAX11501 inputs to AC- or DC-coupling. Jumpers
JU1% JU2% and JU3 configure the input coupling for the
MAX11501 EV kit. See Table 1 for shunt positions.
3) Verify that no shunts are installed across jumpers
JU8 and JU9 (normal operating mode).
4) Verify that no shunts are installed across jumpers
JU10% JU11% and JU12 (no DC bias input).
Table 1. JU1, JU2, and JU3 Jumper
Selection (CVBSIN, YIN, and CIN)
5) Connect the output of the video signal generator to
the CVBSIO BOC connector on the MAX11501 EV kit.
6) Connect the CVBSꢁUT1 BOC connector on the EV
kit to the input of the video measurement equipment.
SHUNT POSITION
COUPLING CONFIGURATION
Installed
DC-coupling
7) Connect the power-supply ground to the GOD pad
on the EV kit.
Oot installed*
AC-coupling
*Default position.
8) Connect the 5V supply to the VCC pad on the EV kit.
Evluates:/MAX1502
Output Coupling (CVBSOUT1,
CVBSOUT2, YOUT, and COUT)
The MAX11501 EV kit provides an option to configure
the MAX11501 outputs to AC- or DC-coupling. Jumpers
JU4–JU7 configure the output coupling for the
MAX11501 EV kit. See Table 2 for shunt positions.
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.
10) Turn on the power supply and enable the video sig-
nal generator.
Table 2. JU4–JU7 Jumper Selection
11) Analyze the video output signal.
(CVBSOUT1, CVBSOUT2, YOUT, and COUT)
Detailed Description
SHUNT POSITION
COUPLING CONFIGURATION
The MAX11501 EV kit is a fully assembled and tested
surface-mount PCB that contains a MAX11501 IC. The
MAX11501 is a triple video filter and buffer for SDTV
applications. The MAX11501 filter typically has 3dB
attenuation at 8.6MHz and 50dB attenuation at 27MHz.
The device includes a +6dB output buffer capable of dri-
Installed
DC-coupling
Oot installed*
AC-coupling
*Default position.
ving a 2V
video signal into two standard 150Ω loads.
P-P
2
_______________________________________________________________________________________
MAX11501 Evaluation Kit
Evluates:/MAX1502
has to be applied after the AC-coupling capacitor to
Output Channel 2 and Channel 3 Load
(OUT2 and OUT3)
The MAX11501 EV kit provides an option to demon-
strate the dual-load capability on output channels 2
and 3 of the MAX11501. Jumpers JU8 and JU9 config-
ure channels 2 and 3 output loads% respectively% on the
MAX11501 EV kit. See Table 3 for shunt positions.
ensure that the clamp never operates. A 590mV DC
bias voltage can be applied to the MAX11501 IC inputs
by installing shunts across jumpers JU10% JU11% or
JU12. To configure the inputs to a different DC bias
voltage% replace resistors R13% R14% or R15. Refer to the
MAX11501 IC data sheet for the DC bias voltage calcu-
lation. See Table 4 for input clamp configuration.
Table 3. JU8 and JU9 Jumper Selection
(OUT2 and OUT3)
Table 4. JU10, JU11, and JU12 Jumper
Selection (IN1, IN2, and IN3)
SHUNT POSITION
OUTPUT LOAD
SHUNT POSITION
DC BIAS LEVEL
Installed
75Ω*
DC bias enabled
(use for bipolar signals)
Oot installed**
150Ω
Installed
*YꢁUT and CꢁUT are terminated with a 75Ω load.
DC bias disabled
(use for unipolar signals)
**Default position.
Oot installed*
DC Bias for YPbPr Signals
*Default position.
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 signals% such
as R% G% B% and Y% are biased correctly using the
MAX11501 internal transparent clamp. If the unipolar
signals exceed the voltage defined in the IC data
sheet% AC-coupling is recommended. For bipolar sig-
nals% such as Pb and Pr% a constant DC bias voltage
MAX11502 Evaluation
The MAX11501 EV kit can also evaluate the MAX11502
IC. To evaluate the MAX11502% replace the IC (U1) with
the MAX11502 IC. Refer to the MAX11501/MAX11502
IC data sheet for additional information.
_______________________________________________________________________________________
3
MAX11501 Evaluation Kit
VCC
JU4
4
5
VCC
GND
V
CC
R4
75Ω
1%
C6
220μF
C1
1μF
C2
0.1μF
CVBSOUT1
CVBSOUT2
YOUT
GND
VCC
U1
JU5
R5
75Ω
1%
MAX11501
C7
220μF
R10
820kΩ
OUT1
R13
120kΩ
JU1
8
7
OUT1
OUT2
C3
0.1μF
IN1
JU10
JU6
1
IN1
CVBSIN
R6
75Ω
1%
C8
220μF
VCC
R1
75Ω
1%
OUT2
GND
R11
820kΩ
R14
JU8
R8
120kΩ
JU2
C4
0.1μF
IN2
150Ω
JU11
1%
2
JU7
IN2
YIN
R7
75Ω
1%
R2
75Ω
1%
C9
220μF
GND
VCC
OUT3
6
COUT
OUT3
R12
R15
120kΩ
820kΩ
JU9
R9
JU3
C5
0.1μF
IN3
150Ω
JU12
Evluates:/MAX1502
1%
3
IN3
CIN
R3
75Ω
1%
Figure 1. MAX11501 EV Kit Schematic
4
_______________________________________________________________________________________
MAX11501 Evaluation Kit
Evluates:/MAX1502
Figure 2. MAX11501 EV Kit Component Placement Guide—Component Side
_______________________________________________________________________________________
5
MAX11501 Evaluation Kit
Evluates:/MAX1502
Figure 3. MAX11501 EV Kit PCB Layout—Component Side
6
_______________________________________________________________________________________
MAX11501 Evaluation Kit
Evluates:/MAX1502
Figure 4. MAX11501 EV Kit PCB Layout—Solder Side
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. Oo 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
© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products% Inc.
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