參數(shù)資料
型號(hào): UPC1857ACT
廠商: NEC Corp.
英文描述: SOUND CONTROL IC WITH SURROUND AND I2C BUS
中文描述: 聲控集成電路環(huán)繞和I2C總線
文件頁(yè)數(shù): 21/44頁(yè)
文件大?。?/td> 343K
代理商: UPC1857ACT
21
μ
PC1857A
4.4
Explanation of Each Command
4.4.1
Mute
The mute function can be turned ON/OFF by using data of bit D7 of subaddress 00H.
Figure 4-1. Mute
D7
D6
D5
D4
D3
D2
D1
D0
Subaddress
00H
Mute
Output selection
0
0
1
Mute: OFF
Mute: ON
Output mute
Surround mode
Surround effect
Caution When changing the surround mode, and when turning ON/OFF power, use the mute function
(approx. 200 ms) for pop noise reduction.
4.4.2
Output selection
Output can be selected by using data of bits D5 and D4 of subaddress 00H.
Figure 4-2. Output Selection
D7
D6
D5
D4
D3
D2
D1
D0
Subaddress
00H
Mute
Output selection
0
Output
Data
Output selection
D5
0
0
1
1
Surround mode
Surround effect
D4
0
1
0
1
Lout
L
L
R
L + R
Rout
R
L
R
L + R
Caution The surround mode is OFF (D3, D2 = 11) in modes other than the stereo mode (D5, D4 = 00).
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