DP405 Service Manual
TX Path of Direct Frequency Synthesis
Modulation Method of Direct Frequency Synthesis
TX Filter based on Digital Signal Processing Technique
TX Modulation Gain Number is Adjustable
Digital voice activates TX control
High-performance Fractional PLL Frequency Synthesizer
Fully-integrated In-chip RF VCO
Fully-integrated Internal Loop Filter
Low Phase Noise
Fast Lock of Phase
High-frequency Resolution with Random Frequency Adjustable
Built-in Transistor Frequency Error Calibration Circuit
Sleep Mode of Ultra Low Loss
Three Wire Serial Digital Interface Control
3.6. Semiconductor Device Description
3.6.1. MCU Description
Pin No.
Port No.
Port Name
Definition
E11
GPIO_D44
JM_RST
Encrypted IC Reset
J19
BSENS
MAND_IN
Upside down IC level input
L22
ADC_IN
BAT_DET
Battery power check
W13
GPIO_D7
PF
Side key input
R14
GPIO_D6
BEEP_C
Received voice\alert tone switch control
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 key
V16
GPIO_D99
KEYPAD3
4*4 key
V17
GPIO_D100
MAND_C
Upside down IC power supply control
7
Summary of Contents for DP405
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