TLC32040C Datasheet, PDF (21/33 Pages) Texas Instruments – ANALOG INTERFACE CIRCUITS

TLC32040C, TLC32040I, TLC32041C, TLC32041I
ANALOG INTERFACE CIRCUITS
SLAS014E – SEPTEMBER 1987 – REVISED MAY 1995
A/D channel signal-to-distortion ratio
PARAMETER
A/D channel signal-to-distortion ratio
TEST CONDITIONS
(see Note 7)
VI = – 6 dB to – 0.1 dB
VI = – 12 dB to – 6 dB
VI = – 18 dB to – 12 dB
VI = – 24 dB to – 18 dB
VI = – 30 dB to – 24 dB
VI = – 36 dB to – 30 dB
VI = – 42 dB to – 36 dB
VI = – 48 dB to – 42 dB
VI = – 54 dB to – 48 dB
Av = 1†
MIN MAX
58
58
56
50
44
38
32
26
20
Av = 2†
MIN MAX
> 58§
58
58
56
50
44
38
32
26
Av = 4†
MIN MAX
> 58§
> 58§
58
58
56
50
44
38
32
UNIT
dB
D/A channel signal-to-distortion ratio
PARAMETER
D/A channel signal-to-distortion ratio
TEST CONDITIONS
(see Note 7)
VI = – 6 dB to 0 dB
VI = – 12 dB to – 6 dB
VI = – 18 dB to – 12 dB
VI = – 24 dB to – 18 dB
VI = – 30 dB to – 24 dB
VI = – 36 dB to – 30 dB
VI = – 42 dB to – 36 dB
VI = – 48 dB to – 42 dB
VI = – 54 dB to – 48 dB
MIN MAX UNIT
58
58
56
50
44
dB
38
32
26
20
gain and dynamic range
PARAMETER
Absolute transmit gain tracking error
while transmitting into 600 Ω
Absolute receive gain tracking error
Absolute gain of the A/D channel
Absolute gain of the D/A channel
TEST CONDITIONS
– 48-dB to 0-dB signal range, See Note 8
– 48-dB to 0-dB signal range, See Note 8
Signal input is a – 0.5-dB,
1-kHz sinewave
Signal input is a 0-dB,
1-kHz sinewave
MIN TYP‡ MAX UNIT
± 0.05 ± 0.15 dB
± 0.05 ± 0.15 dB
0.2
dB
– 0.3
dB
power supply rejection and crosstalk attenuation
PARAMETER
TEST CONDITIONS
MIN TYP‡ MAX UNIT
VCC ₊ or VCC _– supply voltage
rejection ratio, receive channel
f = 0 to 30 kHz
f = 30 kHz to 50 kHz
Idle channel, supply signal at 200 mV p-p
measured at DR (ADC output)
30
dB
45
VCC ₊ or VCC _– supply voltage
rejection ratio, transmit channel
(single ended)
f = 0 to 30 kHz
f = 30 kHz to 50 kHz
Idle channel, supply signal at 200 mV p-p
measured at OUT +
30
dB
45
Crosswalk attenuation, transmit-to-receive (single ended)
80
dB
† _{Av is the programmable gain of the input amplifier.}
‡ _{All typical values are at TA = 25°C.}
§ _{A value > 58 is overrange and signal clipping occurs.}
NOTES: 7. The test condition Vin 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.
8. Gain tracking is relative to the absolute gain at 1 kHz and 0 dB (0 dB relative to Vref).
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