Overview
The TLV320AIC14KIDBTR is a low-power, highly-integrated, mono voiceband audio codec produced by Texas Instruments. This device is designed to optimize DSP performance with its advanced synchronous serial port in Time Division Multiplexed (TDM) format. It features a single 16-bit analog-to-digital (A/D) channel and a single 16-bit digital-to-analog (D/A) channel, utilizing oversampling sigma-delta technology for high-resolution signal conversion.
The codec integrates critical functions necessary for most voice-band applications, including MIC preamp, handset/headset preamps, antialiasing filter (AAF), input/output programmable gain amplifier (PGA), and selectable low-pass IIR/FIR filters. It also includes extensive power management features to maximize system power conservation.
Key Specifications
| Parameter | Value |
|---|---|
| Number of ADC Channels | 1 |
| Number of DAC Channels | 1 |
| Resolution (Bits) | 16 |
| Sampling Rate (Max) | 26 KSPS (with IIR/FIR filter), 104 KSPS (with IIR/FIR bypassed) |
| S/N Ratio, ADCs / DACs (dB) | 84 / 92 |
| Dynamic Range, ADCs / DACs (dB) | 85 / 92 |
| Voltage - Supply, Analog | 2.7 V ~ 3.6 V |
| Voltage - Supply, Digital | 1.65 V ~ 1.95 V |
| Operating Temperature | -40°C ~ 85°C |
| Package | 30-TSSOP (0.173", 4.40mm Width) |
Key Features
- Programmable sampling rate up to 26 KSPS with on-chip IIR/FIR filter and up to 104 KSPS with IIR/FIR bypassed.
- Smart Time Division Multiplexed Serial Port (SMARTDM) for glueless interface to DSPs and microcontrollers.
- Supports continuous data transfer mode and on-the-fly reconfiguration programming mode.
- Turbo mode to maximize bit clock for faster data transfer and higher data bandwidth.
- Automatic Cascade Detection (ACD) for self-generating master/slave device addresses.
- Host port with 2-wire interface, configurable as I2C or simple S2C protocol.
- Extensive power management including device power-down and independent software control for turning off ADC, DAC, op-amps, and IIR/FIR filter.
- Low power operation with a consumption of only 10 mW at 3 V.
Applications
The TLV320AIC14KIDBTR is ideal for various portable and voice-band applications, including:
- Wireless accessories
- Hands-free car kits
- VOIP (Voice over Internet Protocol)
- Cable modems
- Speech processing
- Single or multichannel active control applications due to its low group delay characteristic.
Q & A
- What is the maximum sampling rate of the TLV320AIC14KIDBTR?
The maximum sampling rate is 26 KSPS with the on-chip IIR/FIR filter and up to 104 KSPS with the IIR/FIR filter bypassed.
- What type of serial port does the TLV320AIC14KIDBTR use?
The TLV320AIC14KIDBTR uses a Smart Time Division Multiplexed Serial Port (SMARTDM), which is a synchronous 4-wire serial port in TDM format.
- How many codecs can be cascaded to a single serial port?
Up to 16 TLV320AIC14KIDBTR codecs can be cascaded to a single serial port.
- What is the power consumption of the TLV320AIC14KIDBTR at 3 V?
The power consumption is only 10 mW at 3 V.
- What are the operating temperature ranges for the TLV320AIC14KIDBTR?
The device is characterized for commercial operation from 0°C to 70°C and industrial operation from -40°C to 85°C.
- What types of interfaces does the host port support?
The host port supports a 2-wire interface that can be programmed to be either an industrial standard I2C or a simple S2C protocol.
- What is the resolution of the ADC and DAC channels?
The resolution is 16 bits for both the ADC and DAC channels.
- What is the typical S/N ratio for the ADC and DAC?
The typical S/N ratio is 84 dB for the ADC and 92 dB for the DAC.
- What are some of the power management features of the TLV320AIC14KIDBTR?
The device includes extensive power management features such as device power-down and independent software control for turning off ADC, DAC, op-amps, and IIR/FIR filter).
- What package type does the TLV320AIC14KIDBTR come in?
The device comes in a 30-TSSOP package (0.173", 4.40mm Width)).
