Electronic Components Datasheet Search |
|
TLV320AIC27 Datasheet(PDF) 10 Page - Texas Instruments |
|
TLV320AIC27 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 10 page TLV320AIC27 STEREO AUDIO CODEC SLAS253A – MARCH 2000 – REVISED SEPTEMBER 2000 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3D stereo enhancement (continued) There is no provision for pseudo-stereo effects. Mono signals have no enhancement applied if they are in phase and have the same amplitude. Signals from the PCM DAC channels do not have stereo enhancement applied. It is assumed that these signals have already been processed digitally with any required 3D-enhancement effect. Applying the analog 3D-enhancement will corrupt the digital effect. This is equivalent to setting the POP bit in register 20h. As a result, the readback value of this bit is fixed as 1, and attempts to change it will be ignored. The POP bit is set to one and cannot be reset. variable sample rate support The DACs and ADCs on this device support all the recommended sample rates specified in the Intel Revision 2.1 specification for both audio and modem rates. Default rates are 48 ksps. If alternative rates are selected, the AC’97 interface continues to run at 48 kw/s (kilowords per second), but data is transferred across the link in bursts such that the net sample rate selected is achieved. It is up to the AC’97 Revision 2.1-compliant controller to ensure that data is supplied to the ac link, and received from the ac link at the appropriate rate. The device supports on-demand sampling. That is, when the DAC signal-processing circuits need another sample a request is sent to the controller, which must respond with a data sample in the next frame it sends. For example, if a rate of 24 ksps is selected, on average the device requests a sample from the controller every other frame, for each of the stereo DACs. Note that if an unsupported rate is written to one of the rate registers, the rate defaults to the nearest rate supported. The register then responds when interrogated with the supported rate the device has defaulted to. ADCs are controlled similarly but with one difference: normally the left and right-channel ADCs sample at the same rate. Table 1. Variable Sample Rates Supported AUDIO SAMPLE RATE CONTROL VALUE D15–D0 MODEM SAMPLE RATE CONTROL VALUE D15–D0 8000 1F40 7200 1C20 11025 2B11 8228.57 (57600/7) 2024 16000 3E80 8400 20D0 22050 5622 9000 2328 44100 AC44 9600 2580 48000 BB80 10285.71 (72000/7) 282D 12000 2EE0 13714.28 (96000/7) 3592 19200 4B00 24000 5DC0 |
Similar Part No. - TLV320AIC27_05 |
|
Similar Description - TLV320AIC27_05 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |