Overview
The TLV320AIC14IDBTR, produced by Texas Instruments, is a low-power, high-performance, mono voice band codec. This device is designed with advanced technological innovations to optimize DSP performance and is particularly suited for voice-band applications. It features high-resolution signal conversion using oversampling sigma-delta technology and supports programmable sampling rates. The TLV320AIC14 integrates critical functions such as microphone preamplifiers, handset/headset preamps, antialiasing filters, and programmable gain amplifiers, making it ideal for various portable and voice-related applications.
Key Specifications
| Specification | Details |
|---|---|
| Resolution | 16-bit oversampling sigma-delta A/D and D/A converters |
| Sampling Rate | Up to 26 KSPS with on-chip IIR/FIR filter, up to 104 KSPS with IIR/FIR bypassed |
| Signal-to-Noise Ratio (SNR) | 84 dB for ADC, 91 dB for DAC over 13-kHz BW with on-chip FIR; 87 dB for ADC, 92 dB for DAC with external DSPs IIR/FIR |
| Master Clock | Supports maximum master clock of 100 MHz |
| Power Supply | 2.7 V to 3.6 V for analog and I/O, 1.65 V to 1.95 V for digital core |
| Power Consumption | 10 mW at 3 V in standard operation |
| Operating Temperature | Commercial: 0°C to 70°C, Industrial: -40°C to 85°C |
| Interface | SMARTDM 4-wire serial port, 2-wire host port (I2C or S2C) |
Key Features
- Smart Time Division Multiplexed Serial Port (SMARTDM) for glueless interface to DSPs and microcontrollers
- Automatic Cascade Detection (ACD) and dynamic time slot allocation
- Programmable sampling rate and selectable FIR/IIR filters with bypass option
- Continuous data transfer mode and on-the-fly reconfiguration programming mode
- Turbo mode for maximizing bit clock rate up to 25 MHz
- Support for up to 16 codecs on a single 4-wire serial bus
- Flexible host port with 2-wire interface (I2C or S2C)
- Integrated microphone preamps, handset/headset preamps, antialiasing filters, and programmable gain amplifiers
- Extensive power management with device power-down and independent software control for ADC, DAC, op-amps, and IIR/FIR filter
Applications
The TLV320AIC14IDBTR is ideal for various applications, including:
- Portable devices such as wireless accessories and hands-free car kits
- VOIP and cable modem systems
- Speech processing and voice-band applications
- Single or multichannel active control applications due to its low group delay characteristic
Q & A
- What is the resolution of the TLV320AIC14IDBTR's A/D and D/A converters?
The TLV320AIC14IDBTR features 16-bit oversampling sigma-delta A/D and D/A converters.
- What are the programmable sampling rates of the TLV320AIC14IDBTR?
The device supports sampling rates up to 26 KSPS with on-chip IIR/FIR filter and up to 104 KSPS with IIR/FIR bypassed.
- What is the signal-to-noise ratio (SNR) of the TLV320AIC14IDBTR?
The SNR is 84 dB for ADC and 91 dB for DAC over 13-kHz BW with on-chip FIR, and 87 dB for ADC and 92 dB for DAC with external DSPs IIR/FIR.
- What is the maximum master clock supported by the TLV320AIC14IDBTR?
The device supports a maximum master clock of 100 MHz.
- What are the power supply requirements for the TLV320AIC14IDBTR?
The device operates with power supplies ranging from 2.7 V to 3.6 V for analog and I/O, and 1.65 V to 1.95 V for the digital core.
- How much power does the TLV320AIC14IDBTR consume in standard operation?
The device consumes 10 mW at 3 V in standard operation.
- What is the operating temperature range for the TLV320AIC14IDBTR?
The device operates within a temperature range of 0°C to 70°C for commercial use and -40°C to 85°C for industrial use.
- What type of interface does the TLV320AIC14IDBTR use for communication with DSPs?
The device uses a SMARTDM 4-wire serial port for communication with DSPs and a 2-wire host port (I2C or S2C).
- Can multiple TLV320AIC14IDBTR devices be cascaded on a single serial bus?
Yes, up to 16 TLV320AIC14IDBTR devices can be cascaded on a single 4-wire serial bus.
- What power management features does the TLV320AIC14IDBTR offer?
The device offers extensive power management, including device power-down and independent software control for turning off ADC, DAC, op-amps, and IIR/FIR filter.
