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TDA7340G 数据表(PDF) 14 Page - STMicroelectronics

部件名 TDA7340G
功能描述  AUDIO SIGNAL PROCESSOR
PDF  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7340G 数据表(HTML) 14 Page - STMicroelectronics

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NOISE BLANKER: SPKR LF
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
Noise Contrelled Trigger Adjustment (NAT) *)
at VPEAK = 1.5V
00
VTHNOISE = 140mV
01
VTHNOISE = 260mV
10
VTHNOISE = 220mV
11
VTHNOISE = 280mV
Noise Blanker Trigger Threshold Fine Adjust
0
The NBT Threshold is reduced by 5mV
1
Threshold is as defined above (35, 45, 55, 65mV)
NOISE BLANKER: SPKR LR
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
Over Deviation Detector (OVD) *)
(VSB =VR = -1V, fully mono)
00
VPEAKDEV = 2.8VOP
01
VPEAKDEV = 2.0VOP
10
VPEAKDEV = 1.2VOP
1
1
off
Noise Blanker Input Mode *)
0
Internal MPX trigger path is disabled and the
LEVEL pin is directly connected to the trigger
input (bypassing the high pass filter).
1
Internal MPX trigger path and the LEVEL pin via
the 120KHz high pass are connected (default)
NOISE BLANKER: SPKR RF
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
Field Strength Control (FSC) *)
(VSS =VR = -1V, fully mono)
00
VPEAKFS = 2.4V
01
VPEAKFS = 1.9V
10
VPEAKFS = 1.4V
1
1
off
0
Blend Mode on
1
Blend Mode off
NOISE BLANKER: SPKR RR
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
Roll Off Compensation
0
0
1
13.8%
0
1
0
15.6%
0
1
1
17.4%
1
0
0
19.2%
101
21%
1
1
0
22.8%
1
1
1
24.6%
*) See Noise blanker description
TDA7340G
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