Kirisun FP460, Руководство по обслуживанию

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FP460 Service Manual
Page 16 of 53
NC* 14 No connection
RFIN 15 RF signal input
AVDD 16 Power supply
NC* 17 No connection
RFOUT 18 RF signal output
NC* 19 No connection
NC* 20 No connection
AVDD 21 Power supply
PABIAS 22 PA bias supply for PA
AVDD 23 Power supply
PDN 24 Chip enable, high active; Chip sleep, low active
GPIO7 25
Gpio7/vox(When Gpio7=V
H
, vox is active; else V
L
)
GPIO6
26 Gpio6 / sq
(When Gpio6=V
H
, sq is active; else V
L
)
GPIO5
27 Gpio5 / txon
(When Gpio5=V
H
, txon is active; else V
L
)
GPIO4
28 Gpio4 / rxon
(When Gpio4=V
H
, rxon is active; else V
L
)
GPIO3
29 Gpio3 / sdo
(Gpio3=V
H
or V
L
, it is the output register data in 4 wire
control
Interface mode)
GPIO2
30 Gpio2 / int
(When Gpio2=V
H
, int is active; else V
L
)
GPIO1
31
Gpio1 / code_in / code_out
(Gpio1=V
H
or V
L
, it is the input/output code data)
GPIO0
32 Gpio0 / css_in / css_out
(Gpio0=V
H
or V
L
, it is the input/output CTCSS/CDCSS
signal)
3.8 semiconductor devices functional description
Item Model No. Functions
U500 NJM2904 APC
，
U400 LT1801A MCU
IC200 24LC512 E
2
PROM ， Storage channel frequency data, set
parameters, debugging status parameters
U201 TDA2822 Receiver audio power amplifier
Q500 RD07S2B end of TX power amplifier
Q504 DTA144EE APC output switch
Q507 3SK318 Receiver high power
Q200 DTC144EE Red LED drive
Q201 DTC144EE Green LED drive