WT2605XB04-R Recording Module

Brief Introduction

WT2605XB04-R audio recording module is an intelligent audio data transmission, recording and MP3 audio playback product independently developed by Waytronic. It is a low-cost and high-efficiency recording scheme with the characteristics of high integration, small size, low power consumption and stable transmission. Only a few components can be added to the periphery of the module to realize high-quality audio playback. Self-drive-free mode, no complicated bottom operation, convenient use, stability and reliability are the biggest features of this product. In addition, the chip is also a deeply customized product, a low-cost solution specially developed for the field of recording and playing.

WT2605XB04-R mainly has four functions: line recording, MIC recording, MP3 function and UART serial port control. Built-in Flash module, which can plug-in U disk and TF card.

Features

1. Multiple recording modes, which can be supported by the same module: line recording, MIC recording and total recall.
2. High-quality recording, the sampling rate of MIC recording and line recording can reach 16Khz.
3. Audio codec supports 16-bit stereo DAC and two-channel 16-bit ADC.
4. High-performance stereo, ADC has a signal-to-noise ratio of 90dB, and with a recording sampling rate of 16KHz, the original sound can be recorded to the maximum.
5. Using WT2605 as the core, and supporting SPI-FLASH, TF card and U disk; SPI-FLASH is stored as a fixed sound source area, and the contents can be changed with U disk.
6. The USB interface can automatically switch between the host (USB HID) and the slave (USB card reader) and realize the functions of USB sound card.
7. U disk and TF card support FAT, FAT16, FAT32 file system, MP3 and WAV(PCM, IMA-DPCM) playback, Flash only supports MP3 format, the maximum Flash support is 128M, and U disk and TF card support 32G.
8. Support UART serial port control mode and AD key control mode.
9. Support the broadcast language insertion function, pause the background music being played, support the song playing in the specified path, and support the early ending of the insertion.
10. Support USB flash drive offline upgrade program.
11. Support customized special functions: key control mode, touch control mode, etc.

Functional Schematic Diagram

The internal structure of the module: audio chip, Flash, 26M crystal oscillator, antenna and 1W power amplifier (when not in use, it can be directly connected to the external output through resistors).

 

The pins are arranged in the order shown above.

PIN	Name	Type	Description
1	NC		Empty foot
2	SDCMD/SPICS	I/O	TF internal chip selection or chip selection terminal of SPI-FLASH internal memory
3	SPK+	0	Horn terminal 1W 8R
4	SPK-	0	Horn terminal 1W 8R
5	DAC R	0	DAC right channel output
6	DAC L	0	DAC left channel output
7	NC		Empty foot
8	NC		Empty foot
9	MIC	I	Microphone terminal
10	GND	POW	Power ground
11	MP3_EN		Empty foot
12	TXD	I/O	UART serial port data output terminal
13	RXD	I/O	UART asynchronous serial port data input terminal
14	SDCLK/SPISCLK	I/O	TF card clock pin or FLASH clock pin
15	PWRKEY	I	Key foot
16	VDDIO	POW	Internal 3.3V digital power output
17	SDDAT/SPIDA	I	TF card data pin or FLASH data pin
18	VBAT	POW	Module power supply terminal (3.6V~5.0V)
19	DM	I/O	USB data terminal DM
20	DP	I/O	USB data terminal DP