Differential Load
The TLC320AC01 is functionally equivalent to the TLC320AC02 and differs in the electrical specifications as shown in Appendix C. Designing with the TLC320AC01 Analog Interface for DSPs (SLAA006)
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The TLC320AC01 analog interface circuit (AIC) is an audio-band processor that provides an analog-to-digital and digital-to-analog input/output interface system on a single monolithic CMOS chip. This
device integrates a band-pass switched-capacitor antialiasing input filter, a 14-bit-resolution analog-to-digital converter (ADC), a 14-bit-resolution digital-to-analog converter (DAC), a low-pass switched-capacitor output-reconstruction filter, (sin x)/x compensation, and a serial port for data and control
transfers.
The internal circuit configuration and performance parameters are determined by reading control information into the eight available data registers. The register data sets up the device for a given mode of operation and application.
The major functions of the TLC320AC01 are: 1. To convert audio-signal data to digital format by the ADC channel 2. To provide the interface and control logic to transfer data between its serial input and output terminals and a digital signal processor (DSP) or microprocessor 3. To convert received digital data back to an audio signal through the DAC channel
The antialiasing input low-pass filter is a switched-capacitor filter with a sixth-order elliptic characteristic. The high-pass filter is a single-pole filter to preserve low-frequency response as the low-pass filter cutoff is adjusted. There is a three-pole continuous-time filter that precedes this filter to eliminate any aliasing caused by the filter clock signal.
The output-reconstruction switched-capacitor filter is a sixth-order elliptic transitional low-pass filter followed by a second-order (sin x)/x correction filter. This filter is followed by a three-pole continuous-time filter to eliminate images of the filter clock signal.
The TLC320AC01 consists of two signal-processing channels, an ADC channel and a DAC channel, and the associated digital control. The two channels operate synchronously; data reception at the DAC channel and data transmission from the ADC channel occur during the same time interval. The data transfer is in2s-complement format.
There are three basic modes of operation available: the stand-alone analog-interface mode, the master-slave mode, and the linear-codec mode. In the stand-alone mode, the TLC320AC01 generates the shift clock and frame synchronization for the data transfers and is the only AIC used. The master-slave mode has one TLC320AC01 as the master that generates the master-shift clock and frame synchronization; the remaining AICs are slaves to these signals. In the linear-codec mode, the shift clock and the frame-synchronization signals are externally generated and the timing can be any of the standard codec-timing patterns.
Typical applications for this device include modems, speech processing, analog interface for DSPs, industrial-process control, acoustical-signal processing, spectral analysis, data acquisition, and instrumentation recorders.
The TLC320AC01C is characterized for operation from 0°C to 70°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TLC320AC01C Single-Supply Analog Interface Circuit datasheet (Rev. D) | 01 Oct 1996 | |
| Application note | Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) | 31 Dec 2019 | ||
| Application note | Audio Serial Interface Configurations for Audio Codecs (Rev. A) | 27 Jun 2019 | ||
| Application note | Using the MSP430 Launchpad as a Standalone I2C Host for Audio Products (Rev. A) | 28 Oct 2013 | ||
| Application note | Audio Serial Interface Configurations for Audio Codecs | 22 Sep 2010 | ||
| Application note | Solving Enumeration Errors in USB Audio DAC and CODEC Designs | 30 Oct 2009 | ||
| Application note | Configuring I2S to Generate BCLK from Codec Devices & WCLK from McBSP Port | 08 Jul 2009 | ||
| Application note | Low Voltage Modem Platform Based on TMS320LC56 | 01 Jan 1997 | ||
| Application note | Multiple TLC320AC01/02 Analog I/F Circuits on One TMS320C5x DSP Serial Port | 19 Aug 1996 | ||
| Application note | Designing with the TLC320AC01 Analog Interface for DSPs | 01 May 1995 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| PLCC (FN) | 28 | View options |
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