APEX EK26

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INTRODUCTION
The following locations should be jumpered unless used (their
most common anticipated function is listed).
R2, R10
Input protection.
CR1
VBOOST.
R5, R6, R9
Output current sense.
The function of any other components is up to the designer’s
needs and imagination.
Fast, easy breadboarding of circuits using the PA60EU are
possible with the PB80 PC board. Mounting holes are provided
and the provision for standard banana jacks simplifies connection and testing. The amplifier may be mounted horizontally or
vertically. Components are labeled on both sides of the board
for ease in probing.
A multitude of circuit configurations are possible, so only
several component locations have specific functions and will
usually be necessary:
C5,C8
Power supply bypasses MUST be used. Usually
ceramic types of 0.01 to 1.0µF.
C2, C9
Power supply bypass. Suggest 10µF per ampere of
output current.
R1
Feedback resistor.
R3
Input resistor.
R8, C10 Snubber network.
R4, C7
Noise gain compensation. Necessary only occasionally, see Application Notes 19 and 25.
PA60EU CONSIDERATIONS:
When using the EK26 for the PA60EU the following components on the schematic below must be left either shorted
or open:
Short: R109, R209
Open: CR101, C106, CR201, C206
EQUIVALENT SCHEMATIC
R101
GND
C103
–IN 1
C101
C104
R103
2
R107
C111
C112
+V
C105
R102
R104
+IN 1
C102
C107
1
R110
R111
CR101
C106 CR102
7
VCC
35
VEE
4
R105
R106
6
OUT 1
GND
R109
C108
R108
C110
CR103
–V
C109
GND
R201
C203
C201
C204
CR201
–IN 2
R203
R204
R207
+IN 2
C211
C212
C206 CR202
11
C207
R211
R202
R210
VCC
12
VEE
10
8
R205
R206
9
OUT2
GND
R209
R208
C210
CR203
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
1
EVALUATION KIT
FOR PA60EU PIN-OUT
EK26
7"
R210
CR101
R110
R204
C102
R104
C109
C105
CR102
R202
R203
R201
C204
–IN2
R103
R102
CR103
R101
CR203
CR202
C201
C108
+IN1
GND1
C103
C203
C104
C101
–IN1
5"
R105
R205
C106
C206
OUT2
R111
C111
C107
C207
R107
GND2
R211
R207
+IN2
C211
CR201
C112
C212
1
OUT1
R106
R206
R208
R108
C210
C110
R109
R209
M I C R O T E C H N O L O G Y
C107
+IN1
C111
GND1
CR201
CR101
R109
R102
R210
C207
+IN2
C211
R204
R104
C203
C103
R103
R102
C104
CR103
R101
C101
–IN1
C108
CR203
C105
R202
CR102
CR202
C204
C201
–IN2
R205
C206
C106
R106
GND2
R203
R201
C105
OUT1
R207
R110
C212
C112
R111
R107
1
R211
EK26
–V
+V
CIRCUIT SIDE
GND
PB80 REV-B
R208
R108
C110
OUT2
R206
C210
R109
R209
EK26
+V
COMP. SIDE
–V
PB80 REV-C
GND
M I C R O T E C H N O L O G Y
NOTE: Illustration only, not to scale.
This data
sheet has been carefullyCORPORATION
checked and is believed
to be NORTH
reliable, however,
no responsibility
is assumed for
possible inaccuracies
omissions.
All specificationsHOTLINE:
are subject to1change
notice.
APEX
MICROTECHNOLOGY
• 5980
SHANNON
ROAD • TUCSON,
ARIZONA
85741 •orUSA
• APPLICATIONS
(800)without
546-2739
2
EK26U REV E 2004 © 2004 Apex Microtechnology Corp.