EK01 [APEX]
EVALUATION KIT FOR SA01 PIN-OUT; 评估板SA01 PIN- OUT
| 型号： | EK01 |
| 厂家： | 
CIRRUS LOGIC |
| 描述： | EVALUATION KIT FOR SA01 PIN-OUT |
| 文件： | 总4页 (文件大小：249K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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INTRODUCTION
ASSEMBLY
This easy-to-use kit provides a platform for the evaluation of
PWM amplifiers using the SA01 pin-out configuration. It can be
used to analyze a multitude of standard or proprietary circuit
configurations, and is flexible enough to do most standard
amplifier test configurations. The board is designed for surface
mounting all components except the switching amplifier.
The schematic is shown in Figure 2. Note that all of the
components shown on the schematic will probably not be used
for any single circuit. Some components will simply be omitted,
while others require installation of a jumper to complete the
signal path.
1. From the non-silk screen side, insert and solder cage jacks.
Be sure each one is fully seated.
2. From the non-silk screen side, push spacer grommets into
PCboarduntilfullyseated. Grommetswillsnugwhenscrews
are inserted for heatsink mounting.
3. Apply TW10 thermal washer or a thin, even coat of thermal
grease to the bottom of the SA01. If grease is from a tube
make sure there is no sign separation of solids and liquids.
If from a jar, stir it prior to application.
4. Use #14 sleeving to insulate and align at least 2 opposite
pins of the amplifier.
Only components unique to the EK01 are provided in this kit.
Hardware similar to that shown in figure 1 must be obtained lo-
cally. The PC board and the foot print of the heatsink measure
3" by 5".
5. Mount amplifier to heatsink using #6 screws and nuts. Do
not over torque.
6. Install components as needed. External connections may be
soldered directly or standard banana jacks may be soldered
to these pads.
PARTS LIST
Part #
7. Insert amplifier pins into cage jacks and fasten board to
heatsink.
Description
Quantity
HS16
Heatsink
1
MS04
EVAL07
PC mount Cage Jacks
PC Board
1 Bag/12 each
1
60SPG00001
TW10
Spacer Grommets
Thermal Washer
4
1 Box/10 each
BEFORE YOU GET STARTED
* All Apex amplifiers should be handled using proper ESD precautions.
* Always use the heatsink included in this kit with thermal grease.
* Torque the part to the specified 8 to 10 in-lbs (.9 to 1.13 N*M)
* Always use adequate power supply bypassing.
* Do not change connections while the circuit is powered.
* Initially set all power supplies to the minimum operating levels allowed in the device data sheet.
* Check for oscillations.
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FIGURE 1.
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
1
EVALUATION KIT
FOR SA01 PIN-OUT
EK01
FIGURE 2. PCB SCHEMATIC.
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TYPICAL COMPONENT FUNCTIONS
R1
Provides -IN bias from the Reference voltage.
R2
R3
R4
Sets DC scaling for external feedback such as tachometers, position sensors or current sensors.
With R4 sets DC operating point of +IN, with R13 and R15 sets gain of voltage feedback circuit.
With R3 sets DC operating point of +IN.
R5
Input scaling of the control signal.
R6
R7
R8
R9
With C6 sets the corner frequency of the integrator.
With C3 & C4 forms a low pass filter for the external feedback loop. Often used with tachometers.
With C2 forms a low pass filter for the current limit circuit.
Current sense. Often is a piece of resistance wire.
R10
R11
R12, 13, 15, 16
R14
With R8 divides shutdown signal voltage feeding SHDN/FILTER pin.
With C5 sets corner frequency for external feedback loop.
Provides voltage feedback for a voltage controlled output.
Helps set gain or scale input voltage levels.
R17
With C12 provides low pass filtering of +IN signal.
C1
Power supply bypass.
C2
C3, 4
C5
With R8 form a low pass filter for the current limit circuit, also filters the SHDN signal.
With R7 forms a low pass filter for the external feed back loop. Often used with tachometers.
With R11 sets corner frequency for external feedback loop.
With R6 sets the corner frequency of the integrator.
Power supply bypass, must have very low ESR in MHz range.
Filters reference or feedback voltage at +IN.
C6
C7
C8
C9
Bypass for the reference voltage.
C10, 11
C12
With R15 and R16 provides low pass filtering of voltage feedback.
With R17 provides low pass filtering of +IN signal.
C13
Provides AC coupling of +IN signal.
D1 – D4
D5 – D7
Optional flyback diodes.
Input protection zener diodes.
2APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
EVALUATION KIT
FOR SA01 PIN-OUT
EK01
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FIGURE 3. PCB
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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
3
COMMON
CONFIGURATIONS
EK01
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This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. All specifications are subject to change without notice.
4ACOTLCOAT9TAORA• TO, RO5• A LCTOL: 1 (0) 529
EK01U REV E DECEMBER 2004 © 2004 Apex Microtechnology Corp.
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