參數(shù)資料
型號(hào): TDA7335
廠商: 意法半導(dǎo)體
元件分類(lèi): 音頻放大器
英文描述: STEREO PREAMP AMS DOLBY B* NOISE REDUCTION PROCESSOR
中文描述: 立體聲前置放大器醫(yī)療輔助隊(duì)杜比B *降噪處理器
文件頁(yè)數(shù): 10/20頁(yè)
文件大小: 427K
代理商: TDA7335
PINS DESCRIPTION
: InternalConfiguration
ELECTRICALCOMPONENT DESCRIPTION
(seefigure 1)
COMPONENT
RECOMMENDED
VALUE
1K
1
μ
F
10nF
1.2K
6.8K
300K
0.33
μ
F
±
10%
PURPOSE
P
R
E
A
M
P
TR
1
,TR
2
C
1
, C
2
C
3
, C
4
R
1
, R
2
R
3
, R
5
R
4
, R
6
C
5
, C
6
R
8
C
8
Left/Right Channel IN/OUT equalizer filter
TR fixes thegain
150msec NORMAL
70
μ
sec METAL
Preamplifier out to Dolby B inputcoupling capacitor
Define the AMS input threshold level
V
in
101K
+
R
8
1K
+
R
8
where V
in
= (V
right
+ V
left
)/2
Set the interprogram detection time:
INTP = 70
x
10
-3x
C
7
[
μ
F] = [sec]
Set the interspace detection time:
INTS = 0.69
x
C
9 x
R
9 sec
It fixes music search reset time;
Tres = 0.122
x
C
15
[
μ
F] = [sec] if C
15
expressed in
μ
F
Dolby output coupling capacitors
Dolby time constants
Reference voltage external capacitor
It fixes the I
ref
current
If fixes the mute time (typ10msec).
A
M
S
10k
0.22
μ
F
1.5
>
1V
R
7
C
7
R
9
C
9
C
15
470K
0.1
μ
F
100K
1
μ
F
0.1
μ
F
D
O
L
B
Y
C
10
, C
11
C
12
, C
13
C
14
R
11
C
16
R
16
0.68
μ
F
±
10%
4.7
μ
F
±
10%
4.7
μ
F
43K
0.1
μ
F
30K
Figure 5:
PINS: 2 - 3 - 28 - 29
Figure6:
PINS: 7 - 24
TDA7335
10/20
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