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參數資料
| 型號： | TLV320AIC11IPFBG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | GREEN, PLASTIC, TQFP-48 |
| 文件頁數： | 33/55頁 |
| 文件大?。?/td> | 270K |
| 代理商： | TLV320AIC11IPFBG4 |
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4–3
4.3.4
ADC Channel Characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI(PP)
Peak to peak input voltage (differential)
AVDD = 5 V
Preamp gain = 0 dB
6
V
VI(PP)
Peak-to-peak input voltage (differential)
AVDD = 3 V
Preamp gain = 0 dB
4
V
Dynamic range
VI = –3 dB
84
dB
Interchannel isolation
100
dB
EG
Gain error
VI = –1 dB at 1020 Hz
0.1
dB
EO(ADC) ADC converter offset error
±11
mV
CMRR
Common-mode rejection ratio at INM, INP or AUXM, AUXP
VI = –1 dB at 1020 Hz
70
dB
Idle channel noise (on-chip reference)
VINP,INM = 0 V
20
Vrms
Rj
Input resistance
TA = 25°C
35
k
Channel delay
17/fs
s
4.3.5
DAC Path Filter, Fs = 8 kHz (see Note 4)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
0 Hz to 300 Hz
–0.5
0.2
300 Hz to 3 kHz
–0.25
0.25
Filter gain relative to gain at 1020 Hz
3.3 kHz
–1
0.3
dB
Filter gain relative to gain at 1020 Hz
3.6 kHz
–3
dB
4 kHz
–35
≥ 4.4 kHz
–74
NOTE 4: The filter gain outside of the passband is measured with respect to the gain at 1020 Hz. The input signal is the digital equivalent of a
sine wave (digital full scale = 0 dB). The nominal differential DAC channel output with this input condition is 4 VI(PP). The pass band
is 0 to 3600 Hz for an 8-kHz sample rate. This pass band scales linearly with the conversion rate.
4.3.6
DAC Dynamic Performance
4.3.6.1 DAC Signal-to-Noise When Load is 600
(see Note 5)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI = 0 dB
75
85
SNR
Signal to noise ratio
VI = –3 dB
75
83
dB
SNR
Signal-to-noise ratio
VI = –9 dB
70
77
dB
VI = –40 dB
40
47
NOTE 5: The test condition is the digital equivalent of a 1020 Hz input signal with an 8-kHz conversion rate. The test is measured at output of
application schematic low-pass filter. The test is conducted in 16-bit mode.
4.3.6.2 DAC Signal-to-Distortion When Load is 600
(see Note 5)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI = 0 dB
70
80
THD
Signal to total harmonic distortion
VI = –3 dB
70
80
dB
THD
Signal-to-total harmonic distortion
VI = –9 dB
75
83
dB
VI = –40 dB
60
74
NOTE 5: The test condition is the digital equivalent of a 1020 Hz input signal with an 8-kHz conversion rate. The test is measured at output of
application schematic low-pass filter. The test is conducted in 16-bit mode.
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