參數(shù)資料
型號: TDA7348
廠商: 意法半導(dǎo)體
英文描述: Digitally Controlled Audio Processor(數(shù)控音頻處理器)
中文描述: 數(shù)控音頻處理器(數(shù)控音頻處理器)
文件頁數(shù): 9/14頁
文件大?。?/td> 192K
代理商: TDA7348
MSB
D7
LSB
D0
1
1
1
FUNCTION
D6
D5
D4
D3
D2
D1
Soft Mute On
Soft Mute with fast slope (I= I
MAX
)
Soft Mute with slow slope (I = I
MIN
)
Direct Mute
Zero Crossing Mute On
Zero Crossing Mute Off (delayed until next
zerocrossing)
Zero Crossing Mute and Pause Detector Reset
160mV ZC Window Threshold (WIN = 00)
80mV ZC Window Threshold (WIN = 01)
40mV ZC Window Threshold (WIN = 10)
20mV ZC Window Threshold (WIN = 11)
Nonsymmetrical Bass Cut (note 4)
Symmetrical Bass Cut
0
1
1
0
1
0
0
1
0
0
1
1
0
1
0
1
0
1
An additionaldirect mute function is includedin the SpeakerAttenuators.
Note 4: Bass cut for very low frequencies; should not be used at +16 and +18dB bass boost (DC gain)
Mute
MSB
D7
LSB
D0
SPEAKER ATTENUATOR LF, LR, RF, RR
D6
D5
D4
D3
D2
D1
1.25dB step
0dB
-1.25dB
-2.5dB
-3.75dB
-5dB
-6.25dB
-7.5dB
-8.75dB
10dB step
0dB
-10dB
-20dB
-30dB
Speaker Mute
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
1
0
1
0
1
1
1
1
1
For examplean attenuationof 25dBon a selected outputis given by: X X X1 0 1 0 0
SpeakerAttenuators
TDA7348
9/14
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