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FX829 Datasheet(PDF) 7 Page - CML Microcircuits

Part # FX829
Description  Baseband Signal Processor
PDF  34 Pages
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Manufacturer  CMLMICRO [CML Microcircuits]
Direct Link  http://www.cmlmicro.com
Logo CMLMICRO - CML Microcircuits

FX829 Datasheet(HTML) 7 Page - CML Microcircuits

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Baseband Signal Processor
FX829
© 1997 Consumer Microcircuits Limited
7
D/829/4
1.4
External Components
C1
22pF
±20%
R1
1M
W
±5%
X1
4.032MHz
±100ppm
C2
22pF
±20%
R2
Note 1
±10%
C3
68pF
±20%
R3
Note 1
±10%
C4
0.1µF
±20%
R4
100k
W
±10%
C5
0.1µF
±10%
R5
100k
W
±10%
C6
100pF
±20%
R6
Note 2
±10%
C7
0.1µF
±20%
R7
22k
W
±10%
C8
Note 2
±20%
C9
5.6nF
±20%
Notes:
1.
R2, R3, R4 and C3 form the gain components for the Summing Amplifier (AMP2).
R2 and R3 should be chosen as required from the system specification, using the
following formulae:
Audio Gain =
R4
R3
DTMF Gain =
R4
R2
2.
R5, R6, C6 and C8 form the gain components for the Rx Input Amplifier (AMP1).
R6 should be chosen as required by the signal level, using the following formula:
Gain
=
R5
R6
C8 x R6 should be chosen so as not to compromise the low frequency performance of
this product.
Figure 2 Recommended External Components



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