20 seconds of voice recording chip IC

Overview NVB series voice chips Guangzhou 9 core electronic technology the latest of a suitable factory mass production of industrial-grade voice chip OTP. It has a low cost, stable performance, high quality, easy to control, simple circuit, and many other significant advantages. NVB introduction to mask similar to the current price of the industry, but no minimum amount of restrictions, to make up for a lack of industry at present, and for low-cost production quickly, as fast as you can ship a day. NVB is stable performance of voice chip, without any external circuit, can work under extremely harsh noise environments, it has a wide temperature and pressure range, the normal operating range wide 1.8V ~ 4.5V, make up voice chip currently available anti-interference ability is poor defects. NVB series voice chips have a set of PWM output, can directly push 0.5w speaker, clear sound. Built LVR reset, no external reset circuitry. Built precise resistance frequency vibrator (maximum error of only + 1%), no external resistors. NVB An obvious advantage is OTP and MASK burning program to mask seamless, that is, the pre-trial production stage product users can OTP trial production, after a successful trial production into mass production, you can sample directly by OTP MASK mask to reduce production costs, customers do not have secondary confirmation samples. NVB series voice chips with a variety of key trigger mode, and can output forms the signal level can be set according to the voice of the undulating rhythm changes. Also NVB supports the master MCU wire serial control, can be arbitrarily controlled multi-stage voice trigger, is the only commercially available 8-pin chip supports 256 segment voice sound chip. NVB series voice chips with a variety of practical package: DIP8, SOP8 and other peripheral circuits can be just one power coupling capacitance, job stability, wide operating voltage, ultra-low standby power consumption and wide temperature performance are so NVB series voice chips excellent price-performance advantages in a wide range of application areas. 2 Features OTP memory format, the production cycle fast, the fastest in a day, no minimum quantity restriction orders; flexible multiple key operation modes and output level for the selection (edge ??button trigger, level trigger, random play button the order button to play); simple two-wire serial control MCU mode, the user can control any segment master MCU voice trigger playback and stop; support four key trigger. Voice long 20 seconds, 40 seconds, 65 seconds, 80 seconds, 115 seconds; built a set of PWM output can be directly promote 0.5W speaker; flexible playback operation, through a combination of voice can save space, a single data port that can be played up to 128 voice combination; beautiful sound, stable, inexpensive; built LVR self-resetting circuit to ensure normal operation of the chip; DIP8, SOP8 and COB are three packages to choose from, easy to use, flexible application; external circuit is simple, just a coupling capacitor; operating voltage range: 1.8V ~ 4.5V (5V VDD power supply if required series capacitor step-down); Quiescent Current: 2uA; 3 Selection Guide Model Voltage Range Quiescent Current length sampling range voice playback mode package NV020B 1.8 V ~ 4.5V 2uA 20 秒 (6K) 6K ~ 26K PWM SOP / DIP8 NV040B 1.8V ~ 4.5V 2uA 40 秒 (6K) 6K ~ 26K PWM SOP / DIP8 NV065B 1.8V ~ 4.5V 2uA 65 秒 (6K) 6K ~ 26K PWM SOP / DIP8 NV080B 1.8V ~ 4.5V 2uA 80 秒 (6K) 6K ~ 26K PWM SOP / DIP8 NV115B 1.8V ~ 4.5V 2uA 115 秒 (6K) 6K ~ 26K PWM DIP8 Notes: 1. Voice are all based on length 6K Sampling rate calculation, the general application of the sampling rate is preferably greater than 8K, so voice length is only for reference. 44 Applications NVB series of voice chips can be used in a variety of voice prompts occasions, such as: blood pressure, attendance, glucose meters, physiotherapy equipment, foot bath, doorbell prompts, voice toys, voice alarms, automotive electronics, small appliances , Buddha Machine, gifts and more.