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参数资料
| 型号： | TLC320AC02IPM |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 封装： | GREEN, PLASTIC, QFP-64 |
| 文件页数： | 36/86页 |
| 文件大小： | 471K |
| 代理商： | TLC320AC02IPM |
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3–3
3.5.2
ADC Channel Input, VDD = 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
3
V
VI(PP)
Peak-to-peak input voltage (see Note 4)
Differential
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
k
Squelch
DS03, DS02 = 0 in
register 4
60
dB
All typical values are at VDD = 5 V and TA = 25°C.
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.
3.5.3
ADC Channel Signal-to-Distortion Ratio, VDD = 5 V, fs = 8 kHz (Unless
Otherwise Noted)
PARAMETER
TEST CONDITIONS
AV = 0 dB
AV = 6 dB
AV = 12 dB
UNIT
PARAMETER
TEST CONDITIONS
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
VI = – 6 dB to – 1 dB
64
—
VI = – 12 dB to – 6 dB
59
64
—
C
VI = – 18 dB to – 12 dB
56
59
64
ADC channel signal-to-
distortion ratio
VI = – 24 dB to – 18 dB
50
56
59
dB
distortion ratio
(see Note 6)
VI = – 30 dB to – 24 dB
44
50
56
dB
(see Note 6)
VI = – 36 dB to – 30 dB
38
44
50
VI = – 42 dB to – 36 dB
32
38
44
VI = – 48 dB to – 42 dB
26
32
38
NOTE 6: The analog-input test signal is a 1020-Hz sine wave with 0 dB = 6 V peak to peak as the reference level for
the analog-input signal.
3.5.4
DAC Channel Filter Transfer Function, FCLK = 144 kHz, fs = 9.6 kHz, VDD = 5 V
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
fi < 200 Hz
0.15
fi = 200 Hz
– 0.5
0.2
fi = 300 Hz to 3 kHz
– 0.15
0.2
Gain relative to gain at fi = 1020 Hz (see Note 7)
fi = 3.3 kHz
– 0.35
0.03
dB
fi = 3.4 kHz
–1
– 0.1
fi = 4 kHz
–14
fi ≥ 4.6 kHz
–32
NOTE 7: The input signal is the digital equivalent of a 1020-Hz sine wave (digital full scale = 0 dB). The nominal
differential DAC channel output with this input condition is 6 V peak to peak.
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