User Manual

Chengdu Ebyte Electronic Technology Co., Ltd. E200-470A17SUser Manual
Copyright ©2012–2020，成都亿佰特电子科技有限公司 3
6
REST
Input
Module reset pin, low level effective;
11
TXD
Output
TTL serial port output, currently only supports reading the module version,
and does not use floating processing;
12
RXD
Input
TTL serial port input, currently only supports reading the module version,
and does not use floating processing;
16
TTCLK
-
Debug clock pin, do not use floating processing;
17
TTDIO
-
Debug data pins, do not use floating processing;
20
VCC
power supply
Module power supply is positive reference, voltage range: 2.3～5.5V DC,
recommended 3.3V or 5V;
23
Mode
Input
The module's transceiver mode control pin, low-level transmission mode,
high-level reception mode, cannot be left floating;
25
Debug_EN
-
Debug control pin, enter the program burning mode for the low-level
module, do not use floating processing;
26
CH3
Input
Channel selection 3, combined with CH0, CH1, CH2 to select 16 channels
that can work, see the channel table for details;
27
CH2
Input
Channel selection 2, combined with CH0, CH1, CH3 to select 16 channels
that can work, see the channel table for details;
28
CH1
Input
Channel selection 1, combined with CH0, CH2, and CH3 to select 16
channels that can work, see the channel table for details;
29
CH0
Input
Channel selection 0, combined with CH1, CH2, CH3 to select 16 channels
that can work, see the channel table for details;
30
VOIN
Input
Audio input is negative, please refer to the recommended circuit for
hardware design;
31
VOIP
Input
The audio input is positive, the hardware design is detailed in the
recommended circuit;
32
VOON
Output
Audio output is negative, please refer to the recommended circuit for
hardware design;
33
VOOP
Output
The audio output is positive, the hardware design is detailed in the
recommended circuit;
1、3、15、
19、34、35、
36
GND
power supply
Module ground
4、5、7、8、
9、10、13、
14、18、21、
22、24
NC
-
Keep it unused and suspend it for disposal;