參數(shù)資料
型號(hào): TDA7400D
廠商: STMICROELECTRONICS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝: SOP-28
文件頁數(shù): 3/28頁
文件大?。?/td> 277K
代理商: TDA7400D
2.4V(00)
0.9V
VPEAK
E'
D97AU650
1.9V(01)
1.4V(10)
MONO
STEREO
noisy signal
good signal
ATC_SB OFF (11)
NOISE
3V
Figure 3. Fieldstrength Controlled Trigger Adjustment
Multipath Detector
Internal 19kHz band pass filter
Programmable band pass and rectifier gain
two pin solution fully independent usable for
external programming
selectable internal influence on Stereoblend
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
fCMP
Center Frequency of Multipath-
Bandpass
stereodecoder locked on Pilottono
19
KHz
GBPMP
Bandpass Gain
bits D2, D1 configuration byte = 00
6
dB
bits D2, D1 configuration byte = 10
12
dB
bits D2, D1 configuration byte = 01
16
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
bits D7, D6 configuration byte = 11
off
dB
ICHMP
Rectifier Charge Current
bit D5 configuration byte = 0
0.5
A
bit D5 configuration byte = 1
1.0
A
IDISMP
Rectifier Discharge Current
0.5
1
1.5
mA
Quality Detector
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
A
Multipath Influence Factor
bit D7 High-Cut byte +
bit D7 Fieldstrength byte +
00
01
10
11
0.7
0.85
1.00
1.15
TDA7400D
11/28
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