NVD Series Voice Chip
● A set of built-in PWM output can directly push 0.5W speakers;
● Support 8-level volume adjustment, support loop playback and other functions;
● 220 segments of speech can be loaded
● Beautiful sound quality, stable performance, high quality and low price, quiescent current is less than 2uA;
● Built-in LVR self-reset circuit to ensure the normal operation of the IC;
● SOP8 and COB packages are available, easy to use and flexible in application;
● Support 4-chord MIDI playback, the sound quality is very beautiful;
● The peripheral circuit is simple, only one coupling capacitor is needed;
● Rich IO ports, built-in MCU, can customize various special functions;

Choose More Voice Chips For Your Projects

Part Number   Voltage range            Quiescent currentVoice LengthSampling RangeAudio OutputPackage model
NV040D       2V-5V                              2uA   40s(6K)       6K-44K      PWM         SOP8
NV080D       2V-5V                              2uA   80s(6K)       6K-44K      PWM         SOP8
NV170D       2V-5V                              2uA   170s(6K)       6K-44K      PWM         SOP8
NV340D       2V-5V                              2uA   340s(6K)       6K-44K      PWM         SOP8



● Working voltage: DC 2 ~ 5V

● Stand-by power consumption: <2uA

● Audio Output: DAC

● Interface: pulse counting, one-line/two-line serial port

● Volume: support 8 level volume adjustment function

● 220 segments of speech can be loaded

● support multiply segments playing simultaneously

● support customizing functions


● Interface: pulse counting, one-line/two-line serial port

● Size: 4.9 x 6.0 x 1.75 mm

● Capacity: 40S/80S/170S/340S

● Voltage: DC 2 – 5.V

● Working Temperature: -20 to + 75 °C

Chips Package

● SOP8


● Recordable greetingi cards, telephone exchanges,  recording machine cores, security equipment, toys, etc.

NVD Series voice IC is the latest launched OTA Voice IC which is suitable for factory production. It has many significant advantages such as low cost, stable performance, high sound quality, convenient control, and simple circuit.

NVD series voice IC have a variety of key triggering methods, and can output various forms of level signals, which can be set to change according to the ups and downs of the voice. In addition, the NVD supports the one-line serial port control of the main control MCU, and can control multiple voice triggers at will. It is the only voice IC on the market that supports 223 voices with an 8-pin IC.

NVD series voice IC have a variety of practical packaging forms: SOP8, COB, etc. The peripheral circuit only needs one power coupling capacitor, stable operation, wide operating voltage, ultra-low standby power consumption and wide temperature resistance performance make NVD The series of voice IC have first-class cost performance advantages in a wide range of application fields.

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