TLC32044MJB datasheet(36/39 Pages) TI1

36 / 39 page

TLC32044C, TLC32044E, TLC32044I, TLC32044M, TLC32045C, TLC32045I

VOICE-BAND ANALOG INTERFACE CIRCUITS

SLAS017F − MARCH 1988 − REVISED MAY 1995

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 20

−10

−50

− 40

−30

− 20

0.4

0.2

0.1

0.3

0.5

Input Signal Relative to Vref − dB

A/D GAIN TRACKING

(GAIN RELATIVE TO GAIN

AT 0-dB INPUT-SIGNAL LEVEL)

1-kHz Input Signal

8-kHz Conversion Rate

− 0.1

− 0.2

− 0.3

− 0.4

− 0.5

Figure 21

−10

−50

− 40

−30

− 20

100

D/A CONVERTER SIGNAL-TO-DISTORTION RATIO

INPUT-SIGNAL LEVEL

Input Signal Relative to Vref − dB

1-kHz Input Signal into 600

Ω

8-kHz Conversion Rate

Figure 22

−10

−50

− 40

−30

− 20

0.4

0.2

0.1

0.3

0.5

− 0.1

− 0.2

− 0.3

− 0.4

− 0.5

Input Signal Relative to Vref − dB

D/A GAIN TRACKING

(GAIN RELATIVE TO GAIN

AT 0-dB INPUT-SIGNAL LEVEL)

1-kHz Input Signal into 600

Ω

8-kHz Conversion Rate

Figure 23

Input Signal Relative to Vref − dB

A/D SECOND HARMONIC DISTORTION

INPUT-SIGNAL LEVEL

1-kHz Input Signal

8-kHz Conversion Rate

−10

−50

− 40

−30

− 20

− 100

−90

−80

−70

−60

−50

−40

−30

−20

−10

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