Code produit: | ISD1760 |
ISD1700 voice module description
ISD1700
voice module is quickly become familiar with and master the ISD1700
series chips designed for a simple and practical circuit board. It
applies to all ISD1700 series chip, with a simple, fully functional
characteristics. Recording chip ISD1700 series is a highly integrated,
high-performance chips. It can be multi-segment recording, sampling rate
can be adjusted from 4K to 12K, the power supply can range from 2.4V to
5.5V. ISD1700 there was the new recording prompts, when a new recording
after, LED back flash once every few seconds to alert users to new
recordings. In addition there are four kinds of sound to prompt the
user's operating results, such as start recording, stop recording,
erase, erase all the next one and so on. Recording data is stored in the
FLASH chip, without any compression, so there is a better sound quality
and power storage. Chip has two independent audio signal input channel,
microphone input and analog signal inputs. In independent key mode,
when the operation is completed, a functional chip will automatically
enter power-down mode to reduce power consumption. In SPI mode, the user
can do more functions on the chip operation. If for any memory address
for playback on the analog channel configuration register (Analog
PathConfiguration register, APC) for reading and writing.
Second, the module description
1 Size: 5.2CM * 5.5CM;
2 Power supply: 5V;
3 Recording time: 6K at 75 seconds, 8K for 60 seconds;
4 chip operating frequency 6KHZ and 8KHZ optional;
5 with power indicator light, the chip indicator lights;
6 Simple operation, no microcontroller or other modules will be able to work directly;
7 chip control pin is already leads to facilitate the control connection
Three, ISD1700 modules work independently instructions for use
1. Recording REC:
Press
and hold the REC key while LED lights up, this time facing the MIC to
speak, the content of speech will be recorded into the ISD1700 voice
chip in it.
After
recording after a period raised the key, LED will also go out and press
again to start recording the second paragraph, the subsequent
paragraphs were operating.
2. Playback PLAY:
There
are two ways, edge-triggered and level-triggered. (Note: After
recording tone playback pointer will remain in the final finished
recording segment start address, then playback will put the last
paragraph)
(1)
Edge: Click the PLAY button that put the current segment LED flashes
during playback until the end of playback off. Playback after playback
pointer to the beginning of the segment just put the address, click the
PLAY button again will put just finished this release.
(2)
Level Trigger: the chip will often press the PLAY button all Play all
voice messages, and the cycle until you release the button.
3. Fast forward FWD:
Playback
operation performed before, tap this button playback pointer will point
to the next section, double-click the starting point to the second
paragraph after paragraph. Click this button during playback to stop
playback of the current segment and then play the next paragraph, if you
are currently playing the last paragraph, the last paragraph playback
to stop playback first paragraph.
4. ERASE ERASE:
Single-segment
erase operation can only be effective the first and last paragraph,
when the playback pointer is the first or the last paragraph, the point
of this key will erase the first or the last paragraph. Playback will
jump to the corresponding pointer in the second paragraph before erasing
or penultimate paragraph. Press this button more than 3 seconds often
chips into the "All Erase operation mode" while the LED flashes twice,
continue pressing this key, LED 7 flashes off, then release the button,
the chip inside the voice message is All erased.
5. Reset RESET:
Click
this button chip reset operation is performed. After reset, play and
record pointer points to the last paragraph, which the playback pointer
to the last paragraph of the initial recording pointer to the last
paragraph of the last. Run the playback is played the last paragraph,
the last paragraph and then perform recording then start recording new
last paragraph.
6. Tuning VOL:
Click
this button to adjust the size of the chip output sound. Chip default
output for the sound maximum, per click, the sound by 4db attenuation.
Until the smallest sound, continue to click this button, each click, the
sound increases 4db (Note: Perform reset, the sound output is the
maximum).
7. FT passthrough operations:
The
FT pin with GND, continued to maintain a low level will start
passthrough mode. Direct action will voice from Analn terminal directly
to the speaker or AUD output. During recording, if you press the FT,
will also record the incoming voice signal Analn