Block Diagram

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
SWR-
BRIDGE
RF-SENSE
LPF ANTENNA TUNERMOSFET PA
CONTROL UNIT
TUNING
NETWORK
5/6/7th
Order
LPF
TEMP
SENSE
CONTROL PANEL 1
CONTROL INTERFACE
CONTROL
PANEL 2
Power
Supply
5V
GATE
OVERVOLTAGE
PROTECTION
Power
Supply
5V
FAULT
OVERCURRENT
PROTECTION
POWER 16V DC / 8A
RF Input RF Output
Power
Supply
6V
RF-SENSE
CPU
clock
16MHz
CPU
clock
16MHz
Oliver Harms DL4KA - DIY599.com 2.4
BLOCK DIAGRAM DIY599 PA500 3.5MHz-30MHz 40W HAM Linear PA
A3
1 7Friday, July 16, 2021
Title
Size Document Number Rev
Date: Sheet of
BAND-FILTER 05_BAND-FILTER
RF1 RF2
LPF[1..4]
RF-PA 03_RF-PA
RF-IN RF1
RF-FREQ0
GATE_PWR
TEMP
TUNER 04_TUNER
RF-OUTRF2
TUNER_CTRL[1..5]
AUTO-LED
TUNING-LED
TUNING-SW
AUTO-SW
RF-FREQ
RF-PWR
PANEL-2
07_PANEL-2
PANEL-1
06_PANEL-1
CONTROL 02_CONTROL
RXD
TXD
BAND-DATA
BYPASS_SW
BAND_SW
5V-OUT-100mA
PTT
10m
20m
40m
80m
RF-FREQ RF-PWR
LPF[1..4]
TUNER_CTRL[1..6]
RF-FREQ0 GATE_PWR
PA-TX
TEMP
RF-BYPASS
AUTO-LED TUNING-LED
RF-OUT
LPF[1..4]
TUNER_CTRL[1..5]
RF-IN
RF1
10m
20m
40m
80m
80m
10m
40m
20m
BAND_SW
PWR_LED
BYPASS_SW
BAND_SW
BYPASS_SW
5V-OUT-100mA
RXD
ANALOG-BAND-DATA
TXD
PTT
TXD
RXD
PTT
BAND-DATA
5V-OUT-100mA
TUNING-SW AUTO-SW
AUTO-LED TUNING-SW TUNING-LED AUTO-SW
TX_LED
TX_LED
PA-TX
RF2
RF-FREQ RF-PWR
RF-FREQ0
GATE_PWR TEMP
GND
GND GND
VCC5
GND
GND
GND
VDD5
VCC_IN
GND
GND
GND
VCC_MAIN
9
10
8
4
3
5
1
12
J4
CON8
1
2
3
4
5
6
7
8
J9
CON3
1
2
3
J7
CON6
1 2 3 4 5 6
J3
CON6
1
2
3
4
5
6
J12
CON4
1
2
3
4
FUSE 15A
D3
1N4148
J1
CON6
1
2
3
4
5
6
BNC
1
2
R1
15k
9
10
8
4
3
5
1
12
J13
CON4
1
2
3
4
J14
CON4
1
2
3
4
R2
6k8
D2
1N4148
J6
CON6
1 2 3 4 5 6
J5
CON8
1
2
3
4
5
6
7
8
J2
CON6
1
2
3
4
5
6
D1
1N4148
BNC
1
2
C1
22uF/25V
J8
CON3
1
2
3