TLC320V343 Datasheet, PDF (9/30 Pages) Texas Instruments – SINGLE-SUPPLY ANALOG INTERFACE CIRCUIT

TLC320V343
SINGLE-SUPPLY ANALOG INTERFACE CIRCUIT
SLAS159 – MARCH 1997
electrical characteristics over recommended range of operating free-air temperature, V_DD = 5 V,
digital I/O terminals (DIN, DOUT, EOC, FC0, FC1, FS, FSD, MCLK, M/S, SCLK)
VOH
VOL
IIH
IIL
Ci
Co
PARAMETER
High-level output voltage
Low-level output voltage
High-level input current, any digital input
Low-level input current, any digital input
Input capacitance
Output capacitance
TEST CONDITIONS
IOH = – 1.6 mA
IOL = 1.6 mA
VI = 2.2 V to DGTL VDD
VI = 0 V to 0.8 V
MIN TYP MAX UNIT
2.4
V
0.4 V
10 µA
10 µA
5
pF
5
pF
electrical characteristics over recommended range of operating free-air temperature, V_DD = 5 V,
ADC and DAC channels
ADC channel filter transfer function, FCLK = 144 kHz, f_s = 8 kHz
PARAMETER
TEST CONDITIONS MIN
fi = 50 Hz
fi = 200 Hz
fi = 300 Hz to 3 kHz
– 1.8
– 0.2
Gain relative to gain at fi = 1020 Hz (see Note 3)
fi = 3.3 kHz
– 0.35
fi = 3.4 kHz
–1
fi = 4 kHz
fi ≥ 4.6 kHz
NOTE 3: The differential analog input signals are sine waves at 6 V peak-to-peak. The reference gain is at 1020 Hz.
MAX
–2
– 0.2
0.2
0.03
– 0.1
– 14
– 32
UNIT
dB
ADC channel input, V_DD = 5 V, input amplifier gain = 0 dB (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
VI(PP) Peak-to-peak input voltage (see Note 4)
Single ended
Differential
3
V
6
V
ADC converter offset error
Band-pass filter selected
10 30 mV
CMRR
Common-mode rejection ratio at IN +, IN –, AUX IN +, AUX IN –
(see Note 5)
55
dB
ri
Input resistance at IN +, IN –, AUX IN +, AUX IN –
100
kΩ
Squelch
DS03, DS02 = 0 in
register 4
60
dB
NOTES: 4. The differential range corresponds to the full-scale digital output.
5. Common-mode rejection ratio is the ratio of the ADC converter offset error with no signal and the ADC converter offset error with
a common-mode nonzero signal applied to either IN + and IN – together or AUX IN + and AUX IN – together.
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