TLC32044C Datasheet, PDF (21/39 Pages) Texas Instruments – VOICE-BAND ANALOG INTERFACE CIRCUITS

TLC32044C, TLC32044E, TLC32044I, TLC32044M, TLC32045C, TLC32045I
VOICE-BAND ANALOG INTERFACE CIRCUITS
SLAS017F – MARCH 1988 – REVISED MAY 1995
A/D channel signal-to-distortion ratio (see Note 7)
PARAMETER
TEST CONDITIONS
Av = 1†
MIN MAX
Av = 2†
MIN MAX
Av = 4†
UNIT
MIN MAX
VI = – 6 dB to – 0.1 dB
58
VI = – 12 dB to – 6 dB
58
> 58‡
58
> 58‡
> 58‡
VI = – 18 dB to – 12 dB
56
58
58
VI = – 24 dB to – 18 dB
50
56
58
A/D channel signal-to-distortion ratio, TLC32044C,
TLC32044I, TLC32044E
VI = – 30 dB to – 24 dB
44
50
56
VI = – 36 dB to – 30 dB
38
44
50
VI = – 42 dB to – 36 dB
32
38
44
VI = – 48 dB to – 42 dB
26
32
38
VI = – 54 dB to – 48 dB
20
VI = – 6 dB to – 0.5 dB
58
VI = – 12 dB to – 6 dB
58
26
> 58‡
58
32
> 58‡
> 58‡
VI = – 18 dB to – 12 dB
56
58
58
VI = – 24 dB to – 18 dB
50
56
58
A/D channel signal-to-distortion ratio, TLC32044M VI = – 30 dB to – 24 dB
44
50
56
dB
VI = – 36 dB to – 30 dB
38
44
50
VI = – 42 dB to – 36 dB
32
38
44
VI = – 48 dB to – 42 dB
26
32
38
VI = – 54 dB to – 48 dB
20
VI = – 6 dB to – 0.1 dB
55
VI = – 12 dB to – 6 dB
55
26
> 55‡
55
32
> 55‡
> 55‡
VI = – 18 dB to – 12 dB
53
55
55
VI = – 24 dB to – 18 dB
47
53
55
A/D channel signal-to-distortion ratio, TLC32045C,
TLC32045I
VI = – 30 dB to – 24 dB
41
47
53
VI = – 36 dB to – 30 dB
35
41
47
VI = – 42 dB to – 36 dB
29
35
41
VI = – 48 dB to – 42 dB
23
29
35
VI = – 54 dB to – 48 dB
17
23
29
† _{Av is the programmable gain of the input amplifier.}
‡ _{A value > 60 is over range and signal clipping occurs.}
NOTE 7: The test condition VI is a 1-kHz input signal with an 8-kHz conversion rate (0 dB relative to Vref). The load impedance for the DAC is
600 Ω (300 Ω for TLC32044M).
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