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参数资料
| 型号： | TDA7411 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44 |
| 封装： | 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44 |
| 文件页数： | 11/43页 |
| 文件大小： | 617K |
| 代理商： | TDA7411 |
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Obsolete
Product(s)
- Obsolete
Product(s)
19/43
TDA7411
carrier (f = 57kHz, fm = 23Hz AM, m = 60%)
3. SCA ( Subsidiary Communications Authorization ) measured with: 81% mono signal; 9% pilot signal;
fm = 1kHz; 10%SCA - subcarrier ( fs = 67kHz, unmodulated ).
; Fs =(2 x 38kHz) - 67kHz
4. ACI ( Adjacent Channel Interference ):
; Fs = 110kHz - (3 x 38kHz)
; Fs = 186kHz - (5 x 38kHz)
measured with: 90% mono signal; 9% pilot signal; fm =1kHz; 1% spurious signal( fs = 110kHz or 186kHz,
unmodulated).
NOISE BLANKER PART
Features:
– internal 2nd order 140kHz high-pass filter
– programmable trigger threshold
– trigger threshold dependent on high frequency noise with programmable gain
– additional circuits for deviation- and fieldstrength-dependent trigger adjustment
– very low offset current during hold time due to opamps with MOS inputs
– 4 selectable pulse suppression times
– programmable noise rectifier charge/discharge current
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VTR
Trigger Threshold 0) 1)
meas. with VPEAK = 0.9V
NBT = 111
(c)
30
(c)
mVOP
NBT = 110
(c)
35
(c)
mVOP
NBT = 101
(c)
40
(c)
mVOP
NBT = 100
(c)
45
(c)
mVOP
NBT = 011
(c)
50
(c)
mVOP
NBT = 010
(c)
55
(c)
mVOP
NBT = 001
(c)
60
(c)
mVOP
NBT = 000
(c)
65
(c)
mVOP
VTRNOISE Noise Controlled Trigger
Threshold 2)
meas. with VPEAK = 1.5V
NCT = 00
(c)
260
(c)
mVOP
NCT = 01
(c)
220
(c)
mVOP
NCT = 10
(c)
180
(c)
mVOP
NCT = 11
(c)
140
(c)
mVOP
VRECT
Rectifier Voltage
VMPX = 0mV
NRD 6) = 00
0.5
0.9
1.3
V
VMPX = 50mV; f = 150KHz
1.5
1.7
2.1
V
VMPX = 200mV; f = 150KHz
3.5
V
α57 V.W > F.
()
V
O sig nal
() at1kHz
()
V
Osp uriou s
() at1kHz 23kHz
±
()
--------------------------------------------------------------------------
=
α67
V
O si gna l
() at1kHz
()
V
O spu riou s
() at9kHz
()
------------------------------------------------------
=
α114
V
O s igna l
() at1kHz
()
V
Osp uriou s
() at4kHz
()
------------------------------------------------------
=
α114
V
O s igna l
() at1kHz
()
V
Osp uriou s
() at4kHz
()
------------------------------------------------------
=
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| TDA7415CBTR | 功能描述:音频放大器 Car-radio Multimedia Signal (CMSP) 6-chnl RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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