TLC32040M Datasheet, PDF (15/30 Pages) Texas Instruments – ANALOG INTERFACE CIRCUIT

TLC32040M
ANALOG INTERFACE CIRCUIT
electrical characteristics over recommended operating free-air temperature range, V_CC+ = 5 V,
V_CC– = –5 V, V_DD = 5 V (unless otherwise noted) (continued)
power supply rejection and crosstalk attenuation
PARAMETER
TEST CONDITIONS
VCC+ or VCC _– supply voltage
rejection ratio, receive channel
f = 0 to 30 kHz
Idle channel, Supply signal at 200 mV p-p
f = 30 kHz to 50 kHz measured at DR (ADC output)
VCC+ or VCC _– supply voltage rejection f = 0 to 30 kHz
Idle channel, Supply signal at 200 mV p-p
ratio, transmit channel (single ended) f = 30 kHz to 50 kHz measured at OUT+
Crosstalk attenuation (differential)
Transmit-to-receive DX = 00000000000000
Receive-to-transmit Inputs grounded
MIN TYP† MAX
30
45
30
45
70 80
70 80
UNIT
dB
dB
dB
delay distortion, SCF clock frequency = 288 kHz ± 2%, input (IN+ – IN –) is ± 3-V sinewave
Please refer to filter response graphs for delay distortion specifications.
band-pass filter transfer function (see curves), SCF clock frequency = 288 kHz ± 2%, input (IN + – IN –) is
a ± 3-V sinewave (see Note 9)
PARAMETER
TEST CONDITIONS
MIN MAX UNIT
f = 100 Hz
– 42
f = 170 Hz
– 25
Filter gain (see Note 10)
Input signal reference is 0 dB
300 Hz ≤ f ≤ 3.4 kHz
± 0.5 dB
f = 4 kHz
– 16
f ≥ 4.6 kHz
– 58
low-pass filter transfer function, SCF clock frequency = 288 kHz ± 2% (see Note 10)
PARAMETER
TEST CONDITIONS
f ≤ 3.4 kHz
Filter gain (see Note 11)
Output signal reference is 0 dB
f = 3.6 kHz
f = 4 kHz
f ≥ 4.4 kHz
MIN MAX UNIT
± 0.5
–4
– 30 ^dB
– 58
serial port
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
VOH High-level output voltage
IOH = – 300 µA
2.4
V
VOL
Low-level output voltage
IOL = 2 mA
0.4 V
II
Input current
±10 µA
CI
Input capacitance
15
pF
CO
Output capacitance
15
pF
† _{All typical values are at TA = 25°C.}
NOTES: 9. Gain tracking is relative to the absolute gain at 1 kHz and 0 dB (–0 db relative to Vref).
10. The above filter specifications are for a switched-capacitor filter clock range of 288 kHz ± 2%. For switched-capacitor filter clocks
at frequencies other than 288 kHz ± 2 %, the filter response is shifted by the ratio of switched-capacitor filter clock frequency to
288 kHz.
11. The filter gain outside of the pass band is measured with respect to the gain at 1 kHz. The filter gain within the pass band is measured
with respect to the average gain within the pass band. The pass bands are 300 to 3400 Hz and 0 to 3400 Hz for the band pass and
low-pass filters respectively.
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