Overview
The TLV320AIC14IDBTRG4, produced by Texas Instruments, is a highly integrated, low-power, 16-bit mono voice codec. This device is designed to optimize performance in various voice-band applications, utilizing advanced oversampling sigma-delta technology for both analog-to-digital (A/D) and digital-to-analog (D/A) conversions. It features a programmable sampling rate and integrates critical functions such as MIC preamp, handset/headset preamps, antialiasing filter, and programmable gain amplifiers. The TLV320AIC14 is characterized by its low power consumption and extensive power management capabilities, making it ideal for portable and battery-powered devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sampling Rate | Up to 26 KSPS with IIR/FIR filter, up to 104 KSPS with IIR/FIR bypassed | KSPS |
| Resolution | 16-bit | - |
| SNR (ADC) | 84 dB with on-chip FIR, 87 dB with external DSP IIR/FIR | dB |
| SNR (DAC) | 91 dB with on-chip FIR, 92 dB with external DSP IIR/FIR | dB |
| Analog Supply Voltage | 2.7 V to 3.6 V | V |
| Digital Core Supply Voltage | 1.65 V to 1.95 V | V |
| Digital I/O Supply Voltage | 1.1 V to 3.6 V | V |
| Master Clock Frequency | Up to 100 MHz | MHz |
| Power Consumption | 11.2 mW at 3.3 V (standard operation), 17.8 mW with headphone drivers | mW |
| Operating Temperature | 0°C to 70°C (commercial), -40°C to 85°C (industrial) | °C |
Key Features
- Programmable sampling rate up to 26 KSPS with on-chip IIR/FIR filter and up to 104 KSPS with IIR/FIR bypassed
- 16-bit oversampling sigma-delta A/D and D/A converters
- Smart Time Division Multiplexed Serial Port (SMARTDM) for glueless interface to DSPs and microcontrollers
- Support for continuous data transfer mode and on-the-fly reconfiguration programming mode
- Turbo mode to maximize bit clock for faster data transfer
- Automatic Cascade Detection (ACD) for self-generated master/slave device addresses
- Extensive power management including device power-down and independent software control for ADC, DAC, op-amps, and IIR/FIR filter
- Host port with 2-wire interface (I2C or S2C)
- Built-in analog functions: MIC preamp, handset/headset preamps, antialiasing filter, and programmable gain amplifiers
- Support for up to 16 codecs connected to a single serial port
Applications
- Wireless accessories
- Hands-free car kits
- VOIP (Voice over Internet Protocol)
- Cable modems
- Speech processing
- Portable applications requiring low power consumption
- Single or multichannel active control applications due to low group delay characteristic
Q & A
- What is the maximum sampling rate of the TLV320AIC14?
The maximum sampling rate is up to 26 KSPS with the on-chip IIR/FIR filter and up to 104 KSPS with the IIR/FIR filter bypassed.
- What is the resolution of the A/D and D/A converters?
The resolution is 16-bit for both A/D and D/A converters.
- What is the SNR of the ADC and DAC?
The SNR for the ADC is 84 dB with on-chip FIR and 87 dB with external DSP IIR/FIR. For the DAC, it is 91 dB with on-chip FIR and 92 dB with external DSP IIR/FIR.
- What are the supply voltage ranges for the TLV320AIC14?
The analog supply voltage range is 2.7 V to 3.6 V, the digital core supply voltage range is 1.65 V to 1.95 V, and the digital I/O supply voltage range is 1.1 V to 3.6 V.
- What is the maximum master clock frequency supported by the TLV320AIC14?
The maximum master clock frequency is up to 100 MHz.
- How much power does the TLV320AIC14 consume?
The device consumes 11.2 mW at 3.3 V in standard operation and 17.8 mW with headphone drivers.
- What is the operating temperature range for the TLV320AIC14?
The operating temperature range is 0°C to 70°C for commercial operation and -40°C to 85°C for industrial operation.
- What is the SMARTDM technology in the TLV320AIC14?
The SMARTDM (Smart Time Division Multiplexed Serial Port) technology is a synchronous 4-wire serial port in TDM format that allows for glueless interface to DSPs and microcontrollers, supporting continuous data transfer and on-the-fly reconfiguration.
- Can multiple TLV320AIC14 devices share the same serial bus?
- What are some common applications of the TLV320AIC14?
