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CMX7261 Voice Multi-transcoder
CMX7261
Bandwidth (kHz)
12.5
R3-R6 (kOhms)
22
C9-C10 (pF)
270
Figure 9 Recommended External Components – ANAOUT/MONOUT Reconstruction Filter
The CMX7261 SPKR2 output provides a single ended audio output that can be used to drive an earpiece
or headphone, as shown in Figure 10.
11
SPKR2
S2
+
C19
AVSS
S2
C19
32 nominal
100 F
Figure 10 Recommended External Components – Speaker2 Output
The CMX7261 SPKR1 output can be used to drive a speaker as shown in Figure 11.
14
SPKR1P
S1
15
S1
SPKR1N
8 nominal
Figure 11 Recommended External Components – Speaker1 Output
Care should be taken to avoid shorting any of the speaker outputs to one another or to VSS or VDD. An
external RC filter may be added across SPKR1P and SPKR1N pins if clock noise needs further reduction.
 2012 CML Microsystems Plc
Page 18
D/7261_FI-1.x/9

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