DIR9001IPWRQ1 vs LM1971MX
| Part Number |
|
|
| Category | Audio Special Purpose ICs | Audio Special Purpose ICs |
| Manufacturer | Texas Instruments | National Semiconductor |
| Description | IC AUDIO RECEIVER 28TSSOP | LM1971 DIGITALLY CONTROLLED 62 D |
| Package | Cut Tape (CT) | Bulk |
| Series | Automotive, AEC-Q100 | Overture™ |
| Interface | I²S | SPI |
| Voltage - Supply | 2.7V ~ 3.6V | 4.5V ~ 12V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-TSSOP (0.173\", 4.40mm Width) | 8-SOIC (0.154\", 3.90mm Width) |
| Supplier Device Package | 28-TSSOP | 8-SOIC |
| Function | Audio Receiver | Volume Control |
| Applications | Automotive Audio, Consumer Audio, Musical Instruments | Communication Systems |
| Number of Channels | 1 | 1 |
| Specifications | 28kHz ~ 108kHz | 115dB |




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1. 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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2. What is the role of audio interface?
The main function of audio interface is to output the sound of electronic equipment to external speakers or headphones so that users can hear the sound clearly. This function is achieved by supporting audio file output in multiple formats, multiple audio device outputs, multiple external audio devices, multiple interface outputs, multiple output methods, and multiple audio formats, thereby providing users with greater flexibility and selectivity and improving playback quality.
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3. What is IC in amplifier?
Amplifier IC (Integrated Circuit) is an integrated circuit with integrated power amplifier function. Its main function is to amplify low-level audio signals or other signals into high-power output signals to drive speakers or other loads. Power amplifier IC is widely used in audio equipment, communication equipment, car audio, home audio and video systems, etc., providing convenient and efficient solutions for amplifying audio signals.
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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.

