TLC32047C Datasheet, PDF (38/61 Pages) Texas Instruments – Wide-Band Analog Interface Circuit

3.3.6 Receive and Transmit Channel System Distortion, SCF Clock
Frequency = 432 kHz (see Note 7)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
Attenuation of second harmonic of ^single-ended
70
dB
A/D input signal
differential
62
70
Attenuation of third and higher
harmonics of A/D input signal
single-ended ^{VI = – 0.1 dB to – 24 dB}
differential
65
57
65
dB
Attenuation of second harmonic of ^single-ended
70
dB
D/A input signal
differential
62
70
Attenuation of third and higher
single-ended ^{VI = – 0 dB to – 24 dB}
65
harmonics of D/A input signal
differential
dB
57
65
† _{All typical values are at TA = 25°C.}
3.3.7 Receive Channel Signal-to-Distortion Ratio (see Note 7)
PARAMETER
TEST CONDITIONS
Av = 1 V/V‡
Av = 2 V/V‡
Av = 4 V/V‡
UNIT
MIN MAX MIN MAX MIN MAX
VI = – 6 dB to – 0.1 dB
56
§
§
VI = – 12 dB to – 6 dB
56
56
§
VI = – 18 dB to – 12 dB
53
56
56
VI = – 24 dB to – 18 dB
47
53
56
A/D channel signal-to-
distortion ratio
VI = – 30 dB to – 24 dB
41
47
53
dB
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.}
§ _{Measurements under these conditions are unreliable due to overrange and signal clipping.}
NOTE 7: The test condition is a 1-kHz input signal with a 24-kHz conversion rate. The load impedance for the DAC is
600 Ω . Input and output voltages are referred to Vref.
3–4