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INTRODUCTION
This easy to use kit provides a platform with good circuit board layout and grounding to evaluate Power
Amplifier PA164. With additional prototype area, it is flexible enough to analyze a multitude of standard or
proprietary circuit configurations. All components are provided with the kit. The evaluation kit consists of a
PA164, which is mounted on a daughter board along with input protection diodes, power supply bypass
capacitors, and compensation capacitors.
The Evaluation kit also consists of few passive components and connectors that should be soldered on
the board. These components are not presoldered so as to provide flexibility to the user for changing ampli-
fier configuration as per the users application.
TP1-1
RIN1
P1
-IN
2K
RT1
51
TP2-1
RIN2
P2
2K
+IN
RT2
51
TP15-1
P15
VTMP
TP14-1
N/C
P14
PDWN
N/C
TP13-1
P13
OCFLG
N/C
TP16-1
P16
+5V
TP17-1
P17
GND
HEATSINK_HS36_ECO_REG
www.apexanalog.com
Evaluation Kit
Figure 1: EK24 Circuit Configuration Diagram
RFB1
49.9 K
CFB1
11
11
12
12
13
13
14
14
15
15
-IN
16
ILIM-
16
PA164
+5V
ILIM+
+IN
17
17
GND
18
18
19
19
20
20
EVAL77 BOARD
J1B
RFB2
© Apex Microtechnology Inc.
All rights reserved
10
10
9
9
N/C
N/C
8
8
7
7
6
6
RLIM
RS
OUT
5
5
1 Ohm
4
4
3
3
2
2
1
1
J1A
EK24
TP3-1
P3
-VB
TP4-1
P4
GND
TP5-1
P5
-VS
C1
470uF
TP11-1
P11
OUT_1
TP10-1
+VS
P10
GND
D2
400V
TP12-1
RISO
P12
OUT_2
RN
D1
400V
CN
-VS
TP6-1
P6
+VS
TP7-1
C2
P7
470uF
GND
TP8-1
P8
+VB
Nov 2018
EK24U Rev A

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Summary of Contents for Apex Digital EK24

  • Page 1 The Evaluation kit also consists of few passive components and connectors that should be soldered on the board. These components are not presoldered so as to provide flexibility to the user for changing ampli- fier configuration as per the users application. Figure 1: EK24 Circuit Configuration Diagram TP3-1 RFB1 49.9 K...
  • Page 2 EK24 Figure 2: EVAL 164 PCB Layout Figure 3: EVAL 77 Circuit Configuration Diagram 3.3 pF 3.3 pF 0.1uF VTMP 0.1uF PDWN 0.1uF DUT1 OCFG ILIM- VTMP PA164PQ PDWN OCFLG ILIM- ILIM+ 0.1uF ILIM+ 0.1uF 0.1uF EK24U Rev A...
  • Page 3: Parts List

    EK24 PARTS LIST Reference Manufacturer Part # Description Resistors RT1, RT2 PR03000205109JAC00 51 Ω, 3W, 5% RIN, RIN2 CMF552K0000FHEB 2k Ω, 1/2W, 1% RFB1 CMF5549K900FHEB 49.9k Ω, 1/2W, 1% RLIM CMF551R0000FKEA 1Ω, 1/2W, 1% Printed Circuit Board EVAL 164 Printed Circuit Board...
  • Page 4: Before You Get Started

    EK24 BEFORE YOU GET STARTED • All Apex amplifiers should be handled using proper ESD precautions. • Always use the heat sink and thermal washers included in this kit. • Always use adequate power supply bypassing. • Do not change the connections while the circuit is powered.
  • Page 5: Equipment Needed

    P12 and P10. Input and output waveforms can be checked on an Oscilloscope by connecting it to the test points mounted on the board. Begin the test with minimum values of input and supply voltages. Figure 4: EK24 Build EK24U Rev A...
  • Page 6 EK24 Figure 5 and 6 show the input, output and over current flag waveforms when a PA164 is evaluated using the EK24 evaluation kit. The yellow waveform (channel 1) represents an input signal of 4V and cyan wave- form (channel 2) represents an output signal of 100V Magenta waveform (channel 3) represents the over P-P.
  • Page 7 EK24 NEED TECHNICAL HELP? CONTACT APEX SUPPORT! For all Apex Microtechnology product questions and inquiries, call toll free 800-546-2739 in North America. For inquiries via email, please contact apex.support@apexanalog.com. International customers can also request support by contacting their local Apex Microtechnology Sales Representative. To find the one nearest to you, go to www.apexanalog.com...