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參數(shù)資料
| 型號： | CXD2720Q |
| 廠商： | Sony Corporation |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Single-Chip Digital Signal Processor for Karaoke(卡拉OK單片數(shù)字信號處理器) |
| 中文描述： | 單芯片數(shù)字信號處理器的卡拉OK（卡拉OK單片數(shù)字信號處理器） |
| 文件頁數(shù)： | 18/40頁 |
| 文件大?。?/td> | 431K |
| 代理商： | CXD2720Q |
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CXD2720Q
6. Microcomputer Interface
[Relevant pins] RVDT, TRDT, SCK, XLAT, REDY
The CXD2720Q performs serial audio interface format setting, volume, coefficient settings of microphone echo
delay amount and others by serial data from the microcomputer.
Further, bidirectional communication such as internal data read from the CXD2720Q to the microcomputer can
be done at the rate of once in 1 LRCK.
(1) Pin Structure
The five external pins indicated in the table below are allocated for microcomputer interface.
Microcomputer interface begins operation when XLAT is received, so RVDT, TRDT, SCK and REDY are
connected in common, and by controlling (wiring) only XLAT separately, multiple CXD2720Qs can be used.
Pin
name
RVDT
TRDT
SCK
XLAT
REDY
I
O
I
I
O
Serial data input from microcomputer.
Serial data output to microcomputer. High impedance state unless this pin is set to internal
data read state by the microcomputer. Therefore, it is preferable to perform pull-up or pull-
down so that potential is not unstable when this pin is not active.
Shift clock for serial data. Input data from RVDT is taken according to SCK rise, and output
data from TRDT is sent out according to SCK fall.
Interprets the 8 bits of RVDT before this signal rises as transmission mode data, and the
bits before that as address data.
Transmission prohibited while at Low level. Transmission enabled at High. This pin is an
open drain, and must be pulled up externally.
I/O
Function
Table 6-1. Microcomputer Interface External Pins
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PDF描述 |
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| CXD2721Q-1 | Single-Chip Digital Signal Processor for Karaoke |
| CXD2724AQ-3 | Single-Chip Dolby Pro Logic Surround Decoder(單片杜比環(huán)繞邏輯譯碼器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CXD2720Q-2 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
| CXD2721Q-1 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Digital Signal Processor for Karaoke |
| CXD2724AQ-1 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
| CXD2724AQ-3 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
| CXD2728Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Single-Chip Dolby Pro Logic Surround Decoder |
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