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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： | 37/86页 |
| 文件大小： | 471K |
| 代理商： | TLC320AC02IPM |
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3–4
3.5.5
DAC 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
VO = – 6 dB to 0 dB
64
—
VO = – 12 dB to – 6 dB
59
64
—
C
VO = – 18 dB to – 12 dB
56
59
64
DAC channel signal-to-
distortion ratio
VO = – 24 dB to – 18 dB
50
56
59
dB
distortion ratio
(see Note 8)
VO = – 30 dB to – 24 dB
44
50
56
dB
(see Note 8)
VO = – 36 dB to – 30 dB
38
44
50
VO = – 42 dB to – 36 dB
32
38
44
VO = – 48 dB to – 42 dB
26
32
38
NOTE 8: The input signal, VI, is the digital equivalent of a 1020-Hz sine wave (full-scale analog output at full-scale digital
input = 0 dB). The nominal differential DAC channel output with this input condition is 6 V peak to peak. The
load impedance for the DAC output buffer is 600
from OUT+ to OUT–.
3.5.6
System Distortion, VDD = 5 V, fs = 8 kHz, FCLK = 144 kHz (Unless Otherwise
Noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Single ended input (see Note 9)
82
Second harmonic
Single-ended input (see Note 9)
82
ADC channel
Second harmonic
Differential input (see Note 9)
64
82
attenuation
Third harmonic and
Single-ended input (see Note 9)
77
higher harmonics
Differential input (see Note 9)
64
77
Single-ended output
(buffered DAC VMID)
82
dB
Second harmonic
(buffered DAC VMID)
(see Note 10)
82
dB
DAC channel
attenuation
Differential output (see Note 10)
64
82
attenuation
Third harmonic and
higher harmonics
Single-ended output
(see Note 10)
77
higher harmonics
Differential output (see Note 10)
64
77
All typical values are at VDD = 5 V and TA = 25°C.
NOTES:
9. The input signal is a 1020-Hz sine wave for the ADC channel. Harmonic distortion is defined for an input
level of – 1 dB.
10. 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. The load impedance for the
DAC output buffer is 600
from OUT+ to OUT–. Harmonic distortion is specified for a signal input level
of 0 dB.
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