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TDA7461ND Datasheet(PDF) 16 Page - STMicroelectronics

Part # TDA7461ND
Description  CAR RADIO SIGNAL PROCESSOR
PDF  31 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7461ND Datasheet(HTML) 16 Page - STMicroelectronics

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MULTIPATH DETECTOR
Internal 19kHz bandpass filter
Programmable bandpass 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 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
INGAIN
3.5 ... 11dB
STEP 2.5dB
INFILTER
LP 80KHz
4.th ORDER
DEMODULATOR
- PLOT CANC
- ROLL-OFF COMP.
- LP 25KHz
PLL +
PILOT-DET.
F19
NOISE BLANKER
F38
STEREO
HOLDN
SB CONTROL
DEEMPHASIS
+ HIGHCUT
t=50 or 75
µs
REF 5V
VSBL
MPINFL
LEVEL INTERN
HC
CONTROL
VHCCH
VHCCL
-
MULTIPATH
DETECTOR
D
A
MPOUT
LEVEL INPUT
LP 2.2KHZ
1.th ORDER
MPIN
LEVEL
FM_L
FM_R
MPX
100K
D97AU762
GAIN 0..10dB
Figure 17. Block diagram of the stereodecoder
TDA7461N
16/31



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