Analysis of NV080C Voice Chip Oxygen Therapy Device Voice Solution

Chronic obstructive pulmonary disease (COPD) is a lung disease characterized by airflow limitation. This airflow limitation is not completely reversible and is progressive. Its occurrence is related to the abnormal inflammatory response of the lungs to harmful gases or particles. With repeated attacks and acute exacerbations, lung function gradually declines, and shortness of breath occurs during daily activities or even at rest. Clinically, COPD patients can effectively improve the symptoms of hypoxia and carbon dioxide retention by using ventilators for treatment at home!

The nasal high-flow humidified oxygen therapy device is currently the most popular home oxygen therapy device on the market. The humidification during oxygen therapy helps relieve the patient's oropharyngeal dryness, improves comfort, and helps drain sputum in patients with bronchiectasis.

NV080C voice chip oxygen therapy device voice solution:

NV080C is an OTP eight-pin voice IC with beautiful sound quality launched by Jiuxin Electronics. It supports a set of PWM output ports, can directly drive a 0.5W speaker, has built-in LVR reset, internal resistance frequency oscillator (maximum error is only +-1%), no external resistor is required, and can be seamlessly connected with MASK mask in multiple key triggering modes, as well as the main MCU one-line serial port control mode and supports 220-segment sound and 44100 sampling rate.

Adding the NV080C voice chip to the oxygen therapy device can not only remind users by voice how to operate it, thus avoiding certain problems or operational errors that many people encounter due to the difficulty in actual operation, but also further promote the company's brand. It can also use real-person voice to remind users of the reasons for malfunctions in oxygen therapy equipment, saving maintenance costs.

NV080C voice chip entry content on oxygen therapy device (customizable):

1. Turn on the machine and welcome to use XXX brand oxygen therapy device;

2. The oxygen therapy begins;

3. This oxygen therapy ends;

4. This atomization starts;

5. This atomization is finished;

6. 10 minutes, 20 minutes, 30 minutes...;

7. 1 liter, 2 liters, 3 liters, 4 liters...;

8. 1st gear, 2nd gear, 3rd gear, 4th gear...;

9. Exit timing;

Functional features of NV080C voice chip:

★OTP storage format, fast production cycle, the fastest is only one day, no minimum order quantity limit;

★Flexible multiple key operation modes and level output modes to choose from (edge ​​key trigger, level trigger, random key play, sequential key play);

★Simple and convenient one-line MCU serial port and two-line MCU control mode, the user's main MCU can control the triggering, playing and stopping of any segment of voice;

★Built-in PWM output device can directly drive 0.5W speakers, supports 13-bit DAC output, and can be connected to an external analog amplifier;

★Support 8-level volume adjustment, support loop playback and other functions;

★Flexible playback operation, which can save voice space through combination, and can play up to 220 voice combinations;

★Beautiful sound quality, stable performance, good quality and low price, static current is less than 2uA;

★Built-in LVR self-reset circuit to ensure normal operation of the chip;

★DIP8, SOP8, SSOP20 and COB packages are available, easy to use and flexible in application;

★Supports 4-chord MIDI playback, the sound quality is very beautiful;

★The peripheral circuit is simple, only one coupling capacitor is required;

★Working voltage range: 2V~4.5V for SOP8; 2V~5.5V for SSOP20.

★Rich IO ports, built-in MCU, can customize various special functions;

The structure diagram of NV080C voice chip:

NV080C voice chip pin diagram and corresponding table: