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参数资料
| 型号： | TLV320AIC10CPFB |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封装： | GREEN, PLASTIC, TQFP-48 |
| 文件页数： | 31/57页 |
| 文件大小： | 454K |
| 代理商： | TLV320AIC10CPFB |
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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)
Preamp gain = 0 dB
4
V
Dynamic range
VI = –3 dB
82
dB
Intrachannel isolation
87
dB
EG
Gain error
VI = –1 dB at 1020 Hz
0.6
dB
EO(ADC) ADC converter offset error
±15
mV
CMRR
Common-mode rejection ratio at INM, INP or AUXM, AUXP
VI = –1 dB at 1020 Hz
80
dB
Idle channel noise (on-chip reference)
VINP,INM = 0 V
25
70
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
–0.65
0.25
Filter gain relative to gain at 1020 Hz
3.3 kHz
–0.75
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 6 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
80
85
SNR
Signal to noise ratio
VI = –3 dB
78
84
dB
SNR
Signal-to-noise ratio
VI = –9 dB
72
78
dB
VI = –40 dB
35
42
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
77
THD
Signal to total harmonic distortion
VI = –3 dB
78
85
dB
THD
Signal-to-total harmonic distortion
VI = –9 dB
78
85
dB
VI = –40 dB
62
66
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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