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TLC32044MJB Datasheet, PDF (34/39 Pages) Texas Instruments – VOICE-BAND ANALOG INTERFACE CIRCUITS | |||
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TLC32044C, TLC32044E, TLC32044I, TLC32044M, TLC32045C, TLC32045I
VOICE-BAND ANALOG INTERFACE CIRCUITS
SLAS017F â MARCH 1988 â REVISED MAY 1995
TYPICAL CHARACTERISTICS
AIC TRANSMIT AND RECEIVE
LOW-PASS FILTER
20
10
0
â10
â20
â30
â 40
â 50
â 60
SCF Clock f = 288 kHz
â70 TA = 25°C
Input = ± 3-V Sine wave
â 80
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
SCF Clock Frequency
Normalized Frequency â kHz Ã
288 kHz
Figure 12
AIC TRANSMIT AND RECEIVE
LOW-PASS FILTER
3
SCF Clock f = 288 kHz
TA = 25°C
2.5 Input = ± 3-V Sine wave
2
1.5
1
0.5
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Normalized Frequency â kHz à SCF Clock Frequency
288 kHz
Figure 13
AIC RECEIVE-CHANNEL
BANDPASS FILTER
20
10
0
â10
â20
â30
â 40
â 50
Low-Pass SCF Clock f = 288 kHz
â60 High-Pass SCF Clock f = 8 kHz
â 70
TA = 25°C
Input = ± 3-V Sine wave
â 80
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Frequency â kHz
Figure 14
AIC RECEIVE-CHANNEL
HIGH-PASS FILTER
20
SCF Clock f = 8 kHz
10 TA = 25°C
Input = ± 3-V Sine wave
0
â10
â20
â30
â 40
â 50
â 60
0 50 100 150 200 250 300 350 400 450 500
A/D Conversion Rate
Normalized Frequency â kHz Ã
8 k samples/s
Figure 15
34
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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