 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
STA015T bảng dữ liệu(PDF) 11 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
STA015T bảng dữ liệu(HTML) 11 Page - STMicroelectronics |
|
|
11 / 56 page  Obsolete Product(s) - Obsolete Product(s) 11/56 STA015 proper operation BIT_EN line should be toggled only when SCKR is stable low (for both SCLK_POL con- figuration). The possible configurations are described in Fig. 8. 3.2 GPSO Output Interface In order to retrieve ADPCM encoded data a General Purpose Serial Output interface is available (in TQFP44 and LFBGA64 packages only). The maximum frequency for GPSO_SCKR clock is the DSP sys- tem clock frequency divided by 3 (i.e. 8.192 MHz @ 24.58MHz). The interface is based on a simple and configurable 3-lines protocol, as described by figure 10. 3.3 PCM Output Interface The decoded audio data are output in serial PCM format. The interface consists of the following signals: SDO PCM Serial Data Output SCKT PCM Serial Clock Output LRCLK Left/Right Channel Selection Clock The output samples precision is selectable from 16 to 24 bits/word, by setting the output precision with PCMCONF (16, 18, 20 and 24 bits mode) register. Data can be output either with the most significant bit first (MS) or least significant bit first LS), selected by writing into a flag of the PCMCONF register. Figure 9 gives a description of the several STA015 PCM Output Formats. The sample rates set decoded by STA015 is described in Table 1. To enable the GPSO interface bit GEN of GPSO_ENABLE register must be set. Using the GPSO_CONF register the protocol can be configured in order to provide outcoming data on rising/ falling edge of GPSO_SCKR input clock; the GPSO_REQ request signal polarity (usually connected to an MCU interrupt line) can be configured as well. Figure 9. PCM Output Formats Table 1. MPEG Sampling Rates (KHz) MPEG 1 MPEG 2 MPEG 2.5 48 24 12 44.1 22.05 11.025 32 16 8 |
Số phần tương tự - STA015T |
|
Mô tả tương tự - STA015T |
|
|
Link URL |
| Chính sách bảo mật |
| ALLDATASHEET.VN |
| Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
