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PDF U4276B Data sheet ( Hoja de datos )
| Número de pieza | U4276B | |
| Descripción | FM Multipath Noise Cancellation | |
| Fabricantes | TEMIC Semiconductors | |
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U4276B
FM Multipath Noise Cancellation
Description
The U4276B is a bipolar integrated multipath noise cancellation circuit. It is designed for high performance car radio
applications.
Features
D Preparation of the fieldstrength signal
D Multipath noise cancellation
D Mute function controllable by microcomputer
D Suitable for analogue as well as digital processing
D Only a few external components necessary
Block Diagram
2
FSIN
BFSOUT
7
Buffer
VS
6
Bandgap
3
GND
AVFS
MPXIN
1
4
95 10619
Multipath
detection
Multipath
noise
cancellation
8
MUTE
5
MPXOUT
Pin Description
Pin Symbol
Function
1 AVFS Average of fieldstrength signal
2 FSIN Fieldstrength input
3 GND Ground
4 MPXIN Multiplex input signal
5 MPXOUT Multiplex output signal
6 VS Supply voltage
7 BFSOUT Buffered fieldstrength output
8 MUTE External mute input
AVFS 1
FSIN 2
GND 3
MPXIN 4
8 MUTE
7 BFSOUT
6 VS
5 MPXOUT
95 10632
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
Preliminary Information
1 (8)
1 page  
95 10695
VS
R2
Mute
R3
Figure 4.
U4276B
Absolute Maximum Ratings
Reference point Pin 1b, unless otherwise specified
Parameters
Supply voltage
Pin 6
Supply current
Pin 6
Ambient temperature range
Storage temperature range
Junction temperature
Electrostatic handling (MIL standard 883 C)
Symbol
VS
IS
Tamb
Tstg
Tj
" VESD
Value
10
t.b.d.
– 30 to + 85
–55 to +150
125
2000
Unit
V
mA
°C
°C
°C
V
Thermal Resistance
Parameters
Junction ambient
Symbol
RthJA
Maximum
t.b.d.
Unit
K/W
Electrical Characteristics
Tamb = 25_ C, VS = 8.5 V, unless otherwise specified
Parameters
Supply voltage
Supply current
Fieldstrength
Input voltage
Output voltage
Bandwidth
Input voltage
Test conditions / Pins Symbol Min.
Typ.
Max.
Unit
Pin 6
VS
8
8.5 10
V
Pin 6
IS
2
3
5 mA
Rload
Cload
Pin 2
Pin 7
Pin 7
Pin 1
Vi
Vout
BW
V
0
50
100
0
5.0
5000
5
V
mV
KHz
V
TELEFUNKEN Semiconductors
Rev. A1, 05-Sep-96
Preliminary Information
5 (8)
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet U4276B.PDF ] | |
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