CMX469A データシートの表示（PDF） - CML Microsystems Plc
部品番号
コンポーネント説明
メーカー
CMX469A Datasheet PDF : 16 Pages
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1200/2400/4800 Baud FFSK/MSK Modem
1.4 External Components
CMX469A
Notes:
Component
R1
C1
C2
C3
C4
C5
C6
C7
X1
Value
1.0MΩ
33.0pF
1.0µF
0.1µF
0.1µF
1.0µF
1.0µF
33.0pF
1.008MHz
or
4.032MHz
1. VBIAS may be decoupled to VSS and VDD using C2 and C6 when input signals are referenced to the VBIAS
pin. For input signals referenced to VSS, decouple VBIAS to VSS using C2 only.
2. The performance of the Carrier Detect function will be affected by the nature of the noise spectrum in the
received channel. The value of C4 determines the Carrier Detect Time Constant. A long time constant
results in improved noise immunity but increased response time. C4 may be varied to trade-off response
time for noise immunity.
3. A 4.032MHz Xtal/clock is required for 4800 Baud operation.
Figure 2 Recommended External Components
© 2001 Consumer Microcircuits Limited
7
D/469A/2
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