ISD1700 SERIES voice recording module, including chips, ISD1760 module
A. ISD1700 voice module
ISD1700 voice module is quickly familiar with and master the ISD1700 series chip design a simple and practical circuit board. It is suitable for the ISD1700 series chip, with simple operation, fully functional. The ISD1700 series recorders chip is a highly integrated, high-performance chips. It can be multi-segment recording, sampling rate can be adjusted in the 4K to 12K, the power supply can range from 2.4V to 5.5V. The ISD1700 there a new recording prompts, when there is a new recording, LED back flash once every few seconds to prompt the user to have a new recording. In addition there are four kinds of sound to prompt the user's operating results, such as start recording, stop recording, erase, one and all erased. Recording data is stored in the FLASH chip, without any compression, so there is a better sound quality and power-down storage. The chip has two independent voice signal input channel, microphone input analog signal input. Independent key mode, when a functional operation is completed, the chip will automatically enter power-down mode to reduce power consumption. In SPI mode, the user can more functional operation of the chip. Arbitrary memory address recorders, analog channel configuration register (Analog PathConfiguration Register APC) to read and write.
B , the module description
(1) Size: 5.2CM * 5.5CM;
2 Power supply: 5V;
3 Recording time: 6K 75 seconds, 60 seconds 8K;
4 chip operating frequency of 6kHz and 8kHz can choose;
5 with power indicator light, chip indicator lights;
6 simple operation, no microcontroller or other modules will be able to work directly;
7 chip control pin leads to facilitate the control connection
C ISD1700 modules work independently use (Key Description)
1. Recording REC:
Press and hold the REC button, the LED will light up at the same time, then speak into the MIC, the content of speech will be recorded into the ISD1700 voice chip.
After recording after a period raised the key LED will go off at the same time, press it again to start recording the second paragraph, the paragraphs were operating.
2. Put tone PLAY:
There are two ways, edge-triggered and level-triggered. (Note: After recording the sound playback pointer will remain in the the section address at last finished recording, playback put the last paragraph)
(1) Edge: Click the PLAY button to put the current segment LED flashes during playback off until the end of the playback. Playback after playback pointer just put the starting address of the segment at this point will put just done and press the PLAY button again.
(2) level trigger: Play All chip will often press the PLAY button all the voice messages, and the cycle until you release the button.
3. Fast forward FWD:
Perform playback operations press this button, the playback pointer will point to the next section, double-click the point to this paragraph after the second paragraph of the starting point. During playback Press this key to stop playback of the current segment and then play the next paragraph, currently playing the last paragraph, stop playing the player in the last paragraph of the first paragraph.
4. Erase erase:
Single segment erase operation only on the first and last paragraph, when the playback pointer in the first or the last paragraph, pressing this key will erase the first or last paragraph. Playback pointer will jump before the second or erase the penultimate paragraph. Often chip press this button more than 3 seconds to enter erase all modes of operation, the LED lights flash twice, continue pressing this button, LED 7 flashes turns off, release the button, the voice chip All erased.
5. Reset RESET:
Click this button chip perform a reset operation. Reset, play and record pointer points to the last paragraph of the playback pointer to the last paragraph of the Start the recording pointer to the last paragraph of the last. Perform playback to play the last paragraph, perform recording and then start recording a new last paragraph in the last paragraph.
6. Tuning VOL:
Click this button can adjust the size of the chip output sound. Chip the default output for maximum sound, every click sound 4dB attenuation. Until the minimum of sound, continue press this button, click, the sound increases 4db (Note: you perform a reset, the sound output).
7. FT passthrough operations:
FT pin with GND, continued to maintain a low level will start passthrough mode. Straight-through the operation will voice from Analn end direct access to speakers or AUD output. During recording, press the FT, will also record an incoming voice Analn signal
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