Apex Digital EK66 Manual

APPLICABLE PARTS (SOLD SEPARATELY)
• PA194
INTRODUCTION
This easy to use kit provides a platform with good circuit board layout and grounding to evaluate PA194
Power Amplifier. The evaluation board provides options to install a load capacitor and series resistor to eval‐
uate the PA194 for a piezo load. All necessary components are provided with the kit. External connections to
the evaluation kit can be made through the connectors at the edges of the circuit. The circuit provides a line
termination of 50Ω.
TP5-1
+V
S
P5
RED
+V
S
TP1-1
-IN
P1
-IN
P2
+IN
TP2-1
+IN
TP8-1
+OPTO
+OPTO
TP9-1
GND
GND
P4
YELLOW
-V
S
TP4-1
-V
S
P3
BLACK
TP3-1
GND
XMH1-1 XMH2-1
GND
MTG. HOLES
www.apexanalog.com
Evaluation Kit
Figure 1: Circuit Configuration Diagram
CBP1 CBP2
0.1μF 0.01μF
GND
RIN1
J1-1
-
475
RT1
51
RNG
GND
RIN2
J1-2
+
475
WAKE
RT2
51
CNG
GND
GND
OPTO1
ROPTO
1 6
2 5
3 4
4N33
CBP3
CBP4
0.1μF
GND 0.01μ F
-V
S
GND
XMH3-1 XMH4-1
© Apex Microtechnology Inc.
All rights reserved
RFB1 RFB2
23.7K 23.7K
RFB3 CFB
D3
1 2
MUR1100EG
R
CL
10
+V
S
I
CL
J1-13
DUT
OUT
C
C
-V
S
TP13-1
WAKE
GND
D4
2 1
MUR1100EG
EK66
TP10-1 TP11-1 TP12-1 TP14-1
GND GND GND GND
BLACK
P6
GND
GND
TP6-1
GND
RISO
WHITE P7
OUT
RN
TP7-1
OUT
CN
GND
UNUSED DUT SOCKET PINS
J1-3
N/C
J1-4
N/C
J1-5
N/C
J1-6
N/C
J1-8
N/C
J1-11
N/C
J1-14
N/C
Aug 2018
EK66 Rev A