TLC32044C_11 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
A_v = 1^†
MIN MAX
A_v = 2^†
MIN MAX
A_v = 4^†
UNIT
MIN MAX
V_I = − 6 dB to − 0.1 dB
58
> 58^‡
> 58^‡
V_I = − 12 dB to − 6 dB
58
58
> 58^‡
V_I = − 18 dB to − 12 dB
56
58
58
V_I = − 24 dB to − 18 dB
50
56
58
A/D channel signal-to-distortion ratio, TLC32044C,
TLC32044I, TLC32044E
V_I = − 30 dB to − 24 dB
44
50
56
V_I = − 36 dB to − 30 dB
38
44
50
V_I = − 42 dB to − 36 dB
32
38
44
V_I = − 48 dB to − 42 dB
26
32
38
V_I = − 54 dB to − 48 dB
20
26
32
V_I = − 6 dB to − 0.5 dB
58
V_I = − 12 dB to − 6 dB
58
> 58^‡
58
> 58^‡
> 58^‡
V_I = − 18 dB to − 12 dB
56
58
58
V_I = − 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
V_I = − 36 dB to − 30 dB
38
44
50
V_I = − 42 dB to − 36 dB
32
38
44
V_I = − 48 dB to − 42 dB
26
32
38
V_I = − 54 dB to − 48 dB
20
V_I = − 6 dB to − 0.1 dB
55
26
> 55^‡
32
> 55^‡
V_I = − 12 dB to − 6 dB
55
55
> 55^‡
V_I = − 18 dB to − 12 dB
53
55
55
V_I = − 24 dB to − 18 dB
47
53
55
A/D channel signal-to-distortion ratio, TLC32045C,
TLC32045I
V_I = − 30 dB to − 24 dB
41
47
53
V_I = − 36 dB to − 30 dB
35
41
47
V_I = − 42 dB to − 36 dB
29
35
41
V_I = − 48 dB to − 42 dB
23
29
35
V_I = − 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 V_I is a 1-kHz input signal with an 8-kHz conversion rate (0 dB relative to V_ref). The load impedance for the DAC is
600 Ω (300 Ω for TLC32044M).
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