參數(shù)資料
型號: TDA7405
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44
封裝: 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44
文件頁數(shù): 24/57頁
文件大?。?/td> 750K
代理商: TDA7405
Obsolete
Product(s)
- Obsolete
Product(s)
TDA7405
30/57
9
MULTIPATH DETECTOR
9.1 Features:
internal 19kHz band-pass filter
programmable band-pass- and rectifier-gain
selectable internal influence on Stereoblend and/or Highcut
10
FUNCTIONAL DESCRIPTION OF STEREODECODER
Figure 29. Blockdiagram of the Stereodecoder
Table 9. ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
fCMP
Center frequency of Multipath-
Bandpass
stereodecoder locked on Pilottone
19
kHz
GBPMP
Bandpass Gain
G1
6
dB
G2
12
dB
G3
16
dB
G4
18
dB
GRECTMP Rectifier Gain
G1
7.6
dB
G2
4.6
dB
G3
0
dB
ICHMP
Rectifier Charge Current
0.25
0.5
A
IDISMP
Rectifier Discharge Current
4
mA
Quality Detector
A
Multipath Influence Factor
00
01
10
11
0.70
0.85
1.00
1.15
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