SI2400-KSR Silicon Laboratories Inc, SI2400-KSR Datasheet - Page 13

• Manufacturer Part Number: SI2400-KSR
• Description: Telecom Line Management ICs 2400b/s System Side
• Manufacturer: Silicon Laboratories Inc
• Type: Integrated Global DAAr

Specifications of SI2400-KSR

• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 21 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4. Analog Input/Output
Figure 4 illustrates an optional application circuit to support the analog output capability of the Si2400 for voice
monitoring purposes.
‘
A OUT
Figure 4. Optional Connection to AOUT for a Monitoring Speaker
C2
Table 9. Component Values—Optional Connection to AOUT
Analog Input
R3
C2, C3, C5
Symbol
Figure 5. Analog Input Circuit
C6
C4
C6
R1
R2
R3
U1
R1
0.1
μ
100 µF, 16 V, Elec. ±20%
F
3
2
Rev. 1.3
+ 5 V
+
–
10 kΩ, 1/10 W, ±5%
47 kΩ, 1/10 W, ±5%
820 pF, 16 V, ±20%
6
4
0.1 µF, 16 V, ±20%
10 Ω, 1/10 W, ±5%
U1
AIN/GPIO
5
LM386
Value
Si2400
C3
C5
1 V
RMS
C4
Si2400
13