[Communication interface]：UART serial port
[Working frequency]：2405~2478MHz
[Transmit power]：12dBm～20dBm
[Communication distance]：300m
[Product size]：16*26mm
[Product weight]： 2.2±0.1g
[Introduction]：E200-2G4A20S wireless audio module is a brand new wireless audio transmission module launched by Chengdu Ebyte, which integrates transceiver and transceiver. It has the characteristics of small size and convenient use. It works in the 2.4G frequency band. It uses hardware I/O to select the channel by default. It can also be set to software channel selection through instructions. It supports MIC input and speaker output, and is compatible with 3.3V power supply voltage.
| RF Parameter | Parameter Value | Remarks |
| Working frequency | 2405~2478MHz | Support ISM band |
| Transmit power | 12dBm～20dBm | Software adjustable |
| Receive sensitivity | -88dBm | Air speed 2Mbps |
| Modulation | GFSK | modulation technology |
| blocking power | 15dBm | Less likely to be burned if used at close range |
| Audio sample rate | 8KHz | On-chip 12-bit ADC |
| reference distance | 300m | Sunny and open space, antenna gain 5dBi, antenna height 2.5 meters, air rate 500kbps |
| Main Parameters | Performance | Remarks | |||
| Minimum value | Typical value | Maximum value | |||
| Working voltage (V) | 2.2 | 3.3 | 3.6 | ≥3.3V can guarantee the output power. If it exceeds 3.6V, the module will be burned permanently. | |
| I/O voltage | -0.3 | - | 3.6 | Exceeding 3.6V may permanently damage module I/O | |
| Communication level (V) | -0.3 | 3.3 | 3.6 | There is a risk of burning when using 5V level | |
| Working temperature (℃) | -40 | - | 85 | Industrial grade design | |
| Power consumption | Emission current (mA) | 180 | 190 | 200 | Instantaneous power consumption, average emission current: 80mA |
| Receive current (mA) | - | 1 | - | Receive mode, average power consumption in a single cycle | |
| Sleep current (uA) | - | 12 | - | Receive mode, sleep average power consumption | |
| Hardware parameters | Parameter value | Remarks |
| Packaging method | SMD type | - |
| Interface mode | stamp hole | Pitch 1.27mm |
| Communication Interface | UART serial port | TTL level |
| Dimensions | 16*26mm | - |
| Product Weight | 2.2g | ±0.1g |
| RF interface | IPEX/stamp hole | Equivalent impedance is about 50Ω |
