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TLC32044MJB Datasheet, PDF (36/39 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
A/D GAIN TRACKING
(GAIN RELATIVE TO GAIN
AT 0-dB INPUT-SIGNAL LEVEL)
0.5
1-kHz Input Signal
0.4 8-kHz Conversion Rate
0.3
0.2
0.1
0
â 0.1
â 0.2
â 0.3
â 0.4
â 0.5
â50 â40 â30 â20 â10
0
10
Input Signal Relative to Vref â dB
Figure 20
D/A CONVERTER SIGNAL-TO-DISTORTION RATIO
vs
INPUT-SIGNAL LEVEL
100
1-kHz Input Signal into 600 â¦
90 8-kHz Conversion Rate
80
70
60
50
40
30
20
10
0
â50 â40 â30 â20 â10
0
10
Input Signal Relative to Vref â dB
Figure 21
D/A GAIN TRACKING
(GAIN RELATIVE TO GAIN
AT 0-dB INPUT-SIGNAL LEVEL)
0.5
1-kHz Input Signal into 600 â¦
0.4 8-kHz Conversion Rate
0.3
0.2
0.1
0
â 0.1
â 0.2
â 0.3
â 0.4
â 0.5
â50 â40 â30 â20 â10
0
10
Input Signal Relative to Vref â dB
Figure 22
A/D SECOND HARMONIC DISTORTION
vs
INPUT-SIGNAL LEVEL
â 100
1-kHz Input Signal
â90 8-kHz Conversion Rate
â 80
â 70
â 60
â 50
â 40
â 30
â 20
â 10
0
â50 â40 â30 â20 â10
0
10
Input Signal Relative to Vref â dB
Figure 23
36
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