EK56
EK56U Rev M
3
PARTS LIST
*Chosen per directions
BEFORE YOU GET STARTED
•
All Apex Microtechnology amplifiers should be handled using proper ESD precautions.
•
Do not change connections while the circuit is powered.
•
Initially set all power supplies to the minimum operating voltage allowed in the device data sheet.
•
Always use the heatsink provided in this kit and proper power supply bypassing.
•
Please refer to Application Note 1, AN01, for general operating considerations.
ASSEMBLY
During assembly refer to Figure 3 and the data sheet for the product you are using, either the MSA240KC or
MSA260KC.
1. Note that each side of the circuit board is identified as either the component side or “DUT side”.
2. Two 30-pin socket strips have been supplied with this kit that have been loaded with cage jacks. Using
wire cutters trim the carrier to remove two sockets from one of the strips. Insert the socket strips from
the “DUT side” of the board and solder the jacks from the “component side” of the board, making sure
that each socket strip is fully seated before soldering. After soldering the jacks remove and discard the
plastic carrier.
3. Solder the surface mount capacitors at C1 and C3 on the “component side” of the board.
4. From the “component side” mount banana jacks at BJ1-4 and solder from the “DUT Side” of the circuit
board. Cut off excess lead lengths. Note that BJ1 is connected to SIG GND.
5. Several low ohm value resistors are provided with this evaluation kit: 0.020
Ω
, 0.015
Ω
and 0.010
Ω
. These
are used to implement current limiting in the output circuit. Select the value most appropriate for your
application. Refer to the product data sheet to determine which resistor value you should use.
6. From the “component side” of the PCB mount the HS28 heat sink closest to C2 (to be added later) and sol-
der the mounting tabs of the heat sink from the “DUT side” with a high capacity soldering iron.
Reference
Manufacturer Part #
Description/Vendor
QTY
HS28
Heat Sink
2
HS26
Heat Sink
1
MS11
30-pin socket carrier strip
2
EVAL56
PC Board
1
60SPG00004
Spacer Grommets/Micro Plastics
4
BJ1-4
571-0100
Banana Jack, Deltron 571-0100
4
C1,3
ZX7R105KTL
1uf 500V Cap, Novacap
ST2225B105K501LLXW
2
For identification note this capacitor has “legs”.
C2*
82DA222M100KC2D
2200uF 100V, United Chemi-Con
1
C2*
KMH450VN471M35X50T2
470uF 450V, United Chemi-Con
1
TS1
TS02
Terminal Strip
1
R1,2*
PBV-R020-1
0.020
Ω
Resistor
2
R1,2*
PBV-R010-1
0.010
Ω
Resistor
2
R1,2*
PBV-R015-1
0.015
Ω
Resistor
2
