LM1972M/NOPB vs NJM2521D
| Part Number |
|
|
| Category | Audio Special Purpose ICs | Audio Special Purpose ICs |
| Manufacturer | National Semiconductor | NJR Corporation/NJRC |
| Description | LM1972 MICRO-POT 2-CHANNEL 78 DB | IC AUDIO SWITCH 8DIP |
| Package | Tape & Reel (TR) | Tray |
| Series | - | - |
| Interface | SPI | Analog |
| Voltage - Supply | 4.5V ~ 12V | 4.75V ~ 13V |
| Operating Temperature | 0°C ~ 70°C (TA) | -20°C ~ 75°C (TA) |
| Mounting Type | Surface Mount | Through Hole |
| Package / Case | 20-SOIC (0.295\", 7.50mm Width) | 8-DIP (0.300\", 7.62mm) |
| Supplier Device Package | 20-SOIC | 8-DIP |
| Function | Volume Control | Audio Switch |
| Applications | Consumer Audio, Professional Audio | Audio Systems |
| Number of Channels | 2 | 1 |
| Specifications | 78dB | 2 x SPDT |
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1. What is an audio IC?
An audio IC is a miniature electronic device that integrates multiple electronic components on a silicon chip. It is responsible for processing and converting audio signals and amplifying them for speakers to play. Audio ICs can include multiple functions, such as sound decoders, amplifiers, mixers, and digital signal processors. Audio ICs are core components in modern electronic devices, responsible for processing and transmitting various electronic signals. Audio ICs play a vital role in sound systems, especially in audio processing and signal amplification.
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2. What is the audio IC of the iPhone?
The audio IC of the iPhone mainly includes audio IC U21 and ringtone amplifier IC U22. These components together constitute the audio part of the iPhone, which is responsible for processing and amplifying audio signals to ensure that users can clearly hear media content such as calls and music.
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3. What role does the audio amplifier IC play?
The main functions of audio amplifier IC include signal amplification, current amplification, maintaining signal quality, providing control and protection functions, and high integration. Audio amplifier IC plays a vital role in the audio system. Through its unique functions and characteristics, it ensures the clear transmission of audio signals and high-fidelity sound reproduction.
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4. Which IC is used for audio?
Audio ICs mainly include audio power amplifier ICs and digital power amplifier chips, which play a key role in audio systems. The following are usually used for audio IC applications on the market: XMOS chips are known for their high precision, low noise and high performance, and use the latest digital signal processing technology to provide excellent sound quality and dynamic range. NXP chips, known for their stability and reliability, use advanced semiconductor processes and digital signal processing technology. TI chips, known for their high performance and low power consumption, use advanced DSP technology. ST chips, known for their high fidelity and stability, use advanced digital signal processing technology.
