SMARTDM is a trademark of Texas Instruments.
NOTE: This product temporarily requires a waiver signed by the customer before orders can be shipped. A product notification sheet is provided in the data sheets. Please send email to shipping-waivers@list.ti.com for details.
The TLV320AIC14 implements the smart time division multiplexed serial port (SMARTDM™). This is TI’s design innovation to optimize DSP performance with its most advanced synchronous serial port in TDM format for glue-free interface to popular DSPs (i.e., C5x, C6x) and microcontrollers. The SMARTDM supports both continuous data transfer mode and on-the-fly reconfiguration programming mode. SMARTDM maximizes the bandwidth of data transfer between the TLV320AIC14 DSP codec and the DSP. In normal operation, it automatically detects the number of codecs in the serial interface and adjusts the number of time slots to match the number of codecs so that no time slot in the TDM frame is wasted. In the turbo mode, it maintains the same number of time slots but maximizes the bit transferred rate to 25 MHz to give the DSP more bandwidth to process other tasks in the same sampling period. The SMARTDM technology allows up to 16 codecs to share a single 4-wire serial bus.
The TLV320AIC14 also provides a flexible host port. The host port interface is a two-wire serial interface that can be programmed to be either an industrial standard I2C or a simple S2C (start-stop communication protocol).
The TLV320AIC14 also integrates all of the critical functions needed 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.
The TLV320AIC14 implements an extensive power management; including device power-down, independent software control for turning off ADC, DAC, op-amps, and IIR/FIR filter (bypassable) to maximize system power conservation. The TLV320AIC14 consumes only 10 mW at 3 V.
The TLV320AIC14’s low power operation from 2.7 V to 3.6 V for analog and I/O and 1.65 V to 1.95 V for digital core power supplies, along with extensive power management, make it ideal for portable applications including wireless accessories, hands free car kits, VOIP, cable modem, and speech processing. Its low group delay characteristic makes it suitable for single or multichannel active control applications.
The TLV320AIC14 is characterized for commercial operation from 0°C to 70°C and industrial operation from –40°C to 85°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Low Power CMOS 16-Bit 26-KSPS Codec w/Smart Time Division Multiplexed SMARTDM? datasheet (Rev. A) | 05 May 2002 | |
| * | Errata | TLV320AIC12/13/14/15 Errata | 09 Jan 2004 | |
| Application note | Common Sample Rate Selection For TLV320AIC12/13/14/15/20/21/24/25 Codecs | 30 Apr 2003 | ||
| Application note | Interfacing the TLV320AIC12/13/14/15 Codec to the TMS320C5402? DSP | 24 Oct 2002 | ||
| User guide | DSP - CODEC Development Platform | 26 Sep 2002 | ||
| Application note | TLV320AIC12/13/14/15 CODEC Operating Under Stand-Alone Slave Mode | 16 May 2002 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (DBT) | 30 | Ultra Librarian |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.