SI3016 Просмотр технического описания (PDF) - Silicon Laboratories
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SI3016 Datasheet PDF : 50 Pages
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Si3016
3. Analog Output
Figure 7 illustrates an optional application circuit to support the analog output capability of the DAA system-side
module for call progress monitoring purposes. The ARM bits in Register 6 allow the receive path to be attenuated
by 0, –6, or –12 dB. The ATM bits, which are also in Register 6, allow the transmit path to be attenuated by –20,
–26, or –32 dB. Both the transmit and receive paths can also be independently muted.
AOUT
C2
R3
C1
C6
+5 V
36
+5
2–
4
R1
C3
C4
+
C5
R2
Speaker
Figure 7. Optional Connection to AOUT for a Call Progress Speaker
Table 8. Component Values—Optional Connection to AOUT
Symbol
Value
C1
2200 pF, 16 V, ±20%
C2, C3, C5
0.1 µF, 16 V, ±20%
C4
100 µF, 16 V, Elec. ±20%
C6
820 pF, 16 V, ±20%
R1
10 kΩ, 1/10 W, ±5%
R2
10 Ω, 1/10 W, ±5%
R3
47 kΩ, 1/10 W, ±5%
U1
LM386
Rev. 1.0
11
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