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| U4276B Datasheet, PDF (6/8 Pages) TEMIC Semiconductors – FM Multipath Noise Cancellation | |||
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U4276B
Parameters
Test conditions / Pins Symbol Min.
Typ.
Max.
Unit
Multipath Noise Cancellation
MPX input voltage
MPX output voltage
THD
Bandwidth
Mute-depth
Gain
Mute
Pin 4 VMPXIN
350
VRMS
W RL = 10 k
Pin 5 VMPXOUT
525
VRMS
W RL = 10 k
Pin 5
0.06
0.2
%
VMPXIN = 350 mV
W RL = 10 k
Pin 5
300
kHz
W RL = 10 k
Pin 5
75
82
dB
W RL = 10 k
Pin 5
G
3.5
dB
Input voltage
low
high
Pin 8
VMUTE
0
3
1
V
VS
Application Circuit
FSIN 2
R4 47 k
AVFS 1
C2
4
MPXIN
680 nF
95 10620
100 nF
C1
BFSOUT
7
Buffer
VS
R1 100
6
Bandgap
4.7 mF
C3
R2 56 k
3 GND
Multipath
detection
5
Multipath
noise
cancellation
8
MUTE
R3 56 k
MPXOUT
mC
6 (8)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 05-Sep-96
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