ISD1740SYI01 Product Details

 Product Parameters of ISD1740SYI01

•  Product Name: ISD1740SYI01

•  Product Type: Voice Record/Playback IC

•  Manufacturer: Nuvoton Technology Corporation

•  Package: 28-SOIC

•  Operating Temperature: -40°C ~ 85°C (TA)

•  Recording Time: 26 ~ 80 Sec

•  Playback Mode: Pushbutton, SPI

•  Input Type: Analog - Single Ended, Microphone

•  Output Type: Analog - Single Ended, PWM Speaker Output

•  Features: Sampling Frequency, Automatic Gain Control, Volume Control

 Product Introduction of ISD1740SYI01

ISD1740SYI01 is a multi-message single-chip voice record and playback device that can store and reproduce voice signals in high quality. It uses Nuvoton's patented multilevel storage technology to achieve high compression rates and low power consumption. It supports up to 8 messages with variable durations, and can be controlled by either pushbuttons or SPI interface. It also provides features such as sampling frequency selection, automatic gain control, volume control, and power-down mode.

 Product Application Scope of ISD1740SYI01

ISD1740SYI01 can be used for various applications that require voice recording and playback functions, such as:

•  Toys and games

•  Educational products

•  Consumer electronics

•  Industrial devices

•  Security systems

•  Medical equipment

•  Communication devices

 Frequently Asked Questions of ISD1740SYI01

•  Q: How can I record voice messages using ISD1740SYI01?

•  A: You can record voice messages using either pushbuttons or SPI interface. For pushbutton mode, you need to connect a microphone to the MIC input pin, and use the REC, FT, and CE pins to select and record messages. For SPI mode, you need to connect a microcontroller to the SPI pins, and use the SPI commands to select and record messages.

•  Q: How can I play back voice messages using ISD1740SYI01?

•  A: You can play back voice messages using either pushbuttons or SPI interface. For pushbutton mode, you need to connect a speaker to the SP+ and SP- output pins, and use the PLAY, FT, and CE pins to select and play messages. For SPI mode, you need to connect a microcontroller to the SPI pins, and use the SPI commands to select and play messages.

•  Q: How can I adjust the sampling frequency and the recording time of ISD1740SYI01?

•  A: You can adjust the sampling frequency and the recording time of ISD1740SYI01 by changing the value of the external resistor connected to the ROSC pin. The sampling frequency is inversely proportional to the resistor value, and the recording time is directly proportional to the resistor value. 

•  Q: How can I adjust the volume of the voice messages using ISD1740SYI01?

•  A: You can adjust the volume of the voice messages using ISD1740SYI01 by changing the value of the external resistor connected to the VOLUME pin. The volume is inversely proportional to the resistor value.