Kirisun DP485 User Manual

DP485 Service Manual
11
GPIO7
25
Gpio7/vox (When Gpio7=VH, vox is active; else VL)
GPIO6
26
Gpio6 / sq
(When Gpio6=VH, sq is active; else VL)
GPIO5
27
Gpio5 / txon
(When Gpio5=VH, txon is active; else VL)
GPIO4
28
Gpio4 / rxon
(When Gpio4=VH, rxon is active; else VL)
GPIO3
29
Gpio3 / sdo
(Gpio3=VH or VL, it is the output register data in 4 wire control
Interface mode)
GPIO2
30
Gpio2 / int
(When Gpio2=VH, int is active; else VL)
GPIO1
31
Gpio1 / code_in / code_out
(Gpio1=VH or VL, it is the input/output code data)
GPIO0
32
Gpio0 / css_in / css_out
(Gpio0=VH or VL, it is the input/output CTCSS/CDCSS signal)
4.7.3.Port Description of Master Chip HS8851
PIN NO.
Port NO.
Port Name
Function
E11
GPIO_D44
NC
NC
J19
BSENS
MAND_IN
IC level input under Man Down state
L22
ADC_IN
BAT_DET
Battery capacity detection
W13
GPIO_D7
PF
Input from side key
R14
GPIO_D6
BEEP_C
Switch of voice receiving / alert tone
W14
GPIO_D101
EERROM_WP
EEPROM
AA17
GPIO_D24
ECN_3
Channel switch
AB17
GPIO_D23
ECN_2
Channel switch
V15
GPIO_D11
KEYPAD5
4*4 keys

Kirisun DP485 Specifications

General

Frequency	136~174 MHz, 400~470 MHz
Channel Capacity	256 channels
Channel Spacing	25 kHz/12.5kHz
Antenna Impedance	50Ω
Operating Voltage	7.4V
Rated Power	1W 16Ω
Transmitting Power	4W/1W@7.4V DC
Current Consumption	≤1.5A@ 7.4V DC
Working Temperature	-25℃~ +55℃
Microphone Impedance	2.2kΩ
Battery	Lithium-ion battery DC 7.4V , 2000mAh
Receiving Sensitivity (12dB SINAD )	-120dBm
Squelch Sensitivity (3-level)	≤-120dBm
Selectivity of Adjacent Channels	70dB@25KHz /60dB@12.5KHz
Intermodulation Immunity	65dB@25KHz/12.5 KHz
Blocking	84dB
Frequency Stability	≤±2.5ppm
Maximum Modulation Offset	±5kHz@25KHz /±2.5kHz@12.5KHz
Modulation Distortion	≤3%
Spurious Emission	≤-36dBm