參數(shù)資料
型號(hào): TDA7461ND
廠商: STMICROELECTRONICS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝: SOP-28
文件頁(yè)數(shù): 18/48頁(yè)
文件大小: 437K
代理商: TDA7461ND
TDA7461
Stereo decoder part
Figure 19.
Fieldstrength controlled trigger adjustment
4.4
Multipath detector
Internal 19 kHz bandpass filter
Programmable bandpass and rectifier gain
Two pin solution fully independent usable for external programming
Selectable internal influence on Stereo blend
2.3V(00)
0.9V
VPEAK
E'
D98AU863
1.8V(01)
1.3V(10)
MONO
STEREO
noisy signal
good signal
ATC_SB OFF (11)
NOISE
3V
Table 10.
Multipath detector electrical characteristics
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
fCMP
Center frequency of
multipath- bandpass
stereo decoder locked on pilot
tone
19
KHz
GBPMP
Bandpass gain
bits D2, D1 configuration byte = 00
6
dB
bits D2, D1 configuration byte = 01
16
dB
bits D2, D1 configuration byte = 10
12
dB
bits D2, D1 configuration byte = 11
18
dB
GRECTMP
Rectifier gain
bits D7, D6 configuration byte = 00
7.6
dB
bits D7, D6 configuration byte = 01
4.6
dB
bits D7, D6 configuration byte = 10
0
dB
ICHMP
Rectifier charge current
1
μA
IDISMP
Rectifier discharge current
1.5
mA
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