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TLV320AIC21CPFB from TI,Texas Instruments

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TLV320AIC21CPFB

Manufacturer: TI, TEXAS

LOW-POWER, HIGHLY-INTEGRATED, PROGRAMMABLE 16-Bit, 26-KSPS MONO CODEC

Partnumber Manufacturer Quantity Availability
TLV320AIC21CPFB TI, TEXAS 334 In Stock

Description and Introduction

LOW-POWER, HIGHLY-INTEGRATED, PROGRAMMABLE 16-Bit, 26-KSPS MONO CODEC The TLV320AIC21CPFB is a stereo audio codec manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** Stereo Audio Codec  
- **Interface:** I²C, SPI  
- **Resolution:** 16-bit or 20-bit  
- **Sampling Rate:** Up to 48 kHz  
- **Dynamic Range (ADC):** 90 dB  
- **Dynamic Range (DAC):** 90 dB  
- **Supply Voltage:** 2.7V to 3.6V (Analog), 1.65V to 1.95V (Digital)  
- **Power Consumption:** Low-power modes available  
- **Package:** 48-TQFP (7x7 mm)  

### **Descriptions:**
- The TLV320AIC21CPFB is a high-performance stereo audio codec designed for portable and consumer audio applications.  
- It integrates analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) with a flexible digital interface.  
- Supports multiple input/output configurations for microphones, line inputs, and headphone outputs.  

### **Features:**
- **Stereo ADC & DAC:** High-quality audio conversion.  
- **Programmable Gain Amplifiers (PGA):** Adjustable input/output levels.  
- **Low Power Modes:** Optimized for battery-powered devices.  
- **Digital Signal Processing (DSP):** Includes filtering and mixing capabilities.  
- **Flexible Clocking:** Supports multiple clock sources.  
- **Integrated Headphone Amplifier:** Direct drive capability.  
- **I²C/SPI Control Interface:** Configurable via serial communication.  

For detailed datasheets and application notes, refer to Texas Instruments' official documentation.

Application Scenarios & Design Considerations

LOW-POWER, HIGHLY-INTEGRATED, PROGRAMMABLE 16-Bit, 26-KSPS MONO CODEC

Alternative Part Number

  • TLV320AIC23BPW --: Same TLV320AIC audio codec family with stereo DAC/ADC and headphone amp; different package (TSSOP) and pinout, so verify board layout and register compatibility.
  • TLV320AIC3104IRHBR --: TI audio codec with similar stereo ADC/DAC and headphone output functions; newer series with different register map and QFN package, requiring firmware and layout changes.
  • WM8731CLSEFL --: Widely used stereo audio codec with headphone driver, comparable function to the TLV320AIC21; different vendor, register set and package, so software and pinout redesign are needed.
  • TLV320AIC23BPFBR --: Same TLV320AIC audio codec family with similar stereo ADC/DAC functionality and compatible TQFP package, widely available and often used as a drop-in upgrade.
  • AK4556VT --: Low-power 24-bit stereo audio codec offering similar ADC/DAC performance and serial audio interface, suitable as a cross-manufacturer alternative when TI parts are unavailable.

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