SI3015 Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

производитель

SI3015

3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT

Unspecified 

Si3035

Analog Output

Figure 17 illustrates an optional application circuit to support the analog output capability of the Si3035 for call

progress monitoring purposes. The ARM bits in Register 6 allow the receive path to be attenuated by 0 dB, –6 dB,

or –12 dB. The ATM bits, which are also in Register 6, allow the transmit path to be attenuated by –20 dB, –26 dB,

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 17. Optional Connection to AOUT for a Call Progress Speaker

‘

Table 14. 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

3 kΩ, 1/10 W, ±5%

R2

10 Ω, 1/10 W, ±5%

R3

47 kΩ, 1/10 W, ±5%

U1

LM386

Rev. 1.2

17

Share Link: