Description
Voice Recording Chips Audio Processing Chip IC Voice Integrated Chip 8 Foot Music OTP Voice Recorder IC Circuit
Product Description
The NVD series voice chip is an industrial-grade OTP voice chip suitable for factory mass production. It has many significant advantages such as low cost, stable performance, high sound quality, convenient control, and simple circuit. The launch of the NVD series of voice chips is similar to the current mask price in the industry, but there is no minimum limit, which makes up for a shortcoming in the current industry. NVD is a stable-performance voice chip that does not require any peripheral circuits and can work normally in extremely harsh noise environments. It has a wide range of temperature and voltage resistance, and the normal operating range is as wide as 2V-5.5V, making up for the current Defects of poor anti-interference ability of voice chips on the market. The NVD series voice chip has a set of PwM output ports, which can directly push 0.5w speakers with clear sound quality. Built-in LVR reset, no additional reset circuit required. Built-in accurate internal resistance frequency vibrator (maximum error of only + -1%), no external resistor required. One of the obvious advantages of NVD is that the OTP programming program can seamlessly interface with the MASK mask. That is to say, users can trial production of oTP in the early stage of trial production. When trial production is successful, they can directly press OTP samples. MASK masks are put into production to reduce costs, and customers do not need to confirm samples again. The NVD series voice chip has a variety of key trigger methods, and can output a variety of forms of level signals, which can be set to change according to the ups and downs of the voice. In addition, NVD supports the main control MCU's first-line serial port control, which can control multiple voice triggers arbitrarily, and supports a voice chip with 223 voices. The NVD series voice chip has a variety of practical packaging forms: SoP8, COB, etc., the peripheral circuit only needs a power supply coupling capacitor, stable operation, wide operating voltage, ultra-low standby power consumption and wide temperature resistance performance make NVD The series of voice chips have first-class cost-effective advantages in a wide range of applications.
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NVO40D / NV080D / NV170D / NV340D pin correspondence table
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Pin No.
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Pin labeling
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Brief description
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Functional description
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1
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VPP
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programming power programming power
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can be left floating during use.
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2
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IOA1
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IO port
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Can be used as BUSY signal output port, key input port.
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3
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IOA2
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IO port
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Can be used as one-line serial data port, one-line serial clock port, and key input port.
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4
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IOA3
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IO port
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IO port Key input port, data port of two-wire serial port.
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5
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PVDD
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power supply
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power pin, 2V-5.5V input.
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6
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AUDP
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Horn
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0.5W
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7
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AUDN
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Speaker IO port
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Speaker push 0.5W
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8
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VSSI
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ground
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ground
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NV340DW SOP8 pin correspondence table
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Pin No.
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Pin labeling
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Brief description
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Functional description
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1
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VSSI
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Ground
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Ground
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2
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IOA1
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IO port
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Can be used as BUSY signal output port, key input port.
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3
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IOA2
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IO port
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Can be used as one-line serial data port, one-line serial clock port, and key input port.
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4
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IOA3
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IO port
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Key input port, data port of two-wire serial port.
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5
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PVDD
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power supply
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power pin, 2V-5.5V input
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6
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AUDP
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Speaker
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0.5W
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7
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AUDN
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Speaker IO port
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Speaker push 0.5W
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8
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VPP
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programming power programming power
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can be left floating during use.
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