參數(shù)資料
型號: CXD2719Q
廠商: Sony Corporation
英文描述: Single-Chip Dolby Pro Logic Surround Decoder(單片杜比環(huán)繞邏輯譯碼器)
中文描述: 單片杜比定向邏輯環(huán)繞聲解碼器(單片杜比環(huán)繞邏輯譯碼器)
文件頁數(shù): 13/58頁
文件大?。?/td> 450K
代理商: CXD2719Q
– 13 –
CXD2719Q
Description of Functions
1. Master/Slave Modes
[Relevant pins] XMST, LRCK, BCK
When using the CXD2719Q alone without digital input, set the CXD2719Q to master mode.
When using digital input, the CXD2719Q may be set to either master mode or slave mode.
The clock applied to LRCK and BCK in slave mode must be synchronized to either the crystal oscillator clock
of the XTLI and XTLO pins or the external clock input from the XTLI pin.
Table 1-1. LRCK, BCK Mode Setting
XMST
H
L
Mode
Slave mode
Master mode
LRCK, BCK I/O
Input
Output
SQC05
0
0
1
1
SQC04
0
1
0
1
BFOT
384fs
256fs
512fs
768fs
2. Master Clock System
[Relevant pins] XTLI, XTLO, BFOT
768fs (fs = 32 to 44.1kHz) is assumed for the master clock system, and the connection is as shown below.
BFOT outputs the clock obtained by frequency dividing the master clock. The frequency division ratio can be
changed by the setup register (SQC04, SQC05). (See "6. Setup Register".)
(1) Master
(2) Slave
O
I
O
Frequency
divider
Setup
Register
512fs
XTLI
XTLO
768fs
BFOT
256fs/384fs/512fs/768fs
O
512fs
XTLI
XTLO
768fs
I
OPEN
Frequency
divider
Fig. 2-1.
Note) Oscillation circuits may differ according to peripheral circuit and
substrate. Consult with crystal oscillator manufacturers about the
selecting oscillation circuits.
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