参数资料
型号: TAS3002
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封装: QFP-48
文件页数: 43/54页
文件大小: 266K
代理商: TAS3002
84
8.6
Input Multiplexer
TA = 25°C, AVDD = 3.3 V, DVDD = 3.3 V, fS = 48 kHz, 20-bit I2S mode
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input impedance
20
k
Crosstalk
85
dB
Full-scale input voltage range
1.7
VPP
8.7
DAC Interpolation Filter
TA = 25°C, AVDD = 3.3 V, DVDD = 3.3 V, fS = 48 kHz, 20-bit I2S mode
All terms characterized by frequency are scaled with the normal mode sampling frequency, fS. See Figure 85 and
Figure 86 for performance curves of the DAC digital filter.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Pass band
0.0
20.0
kHz
Pass-band ripple
±0.005
dB
Stop band
24.1
kHz
Stop-band attenuation
28.8 kHz to 3 MHz
75
dB
Group delay
700
s
60
100
Amplitude
dB
40
20
f Frequency Hz
0
80
R
0fs/2
1 fs
2 fs
3 fs
4 fs
5 fs
Figure 85. DAC Filter Overall Frequency Characteristics
0.1
0
Amplitude
dB
0.05
0.1
0.05
0
f Frequency Hz
0.1 fs
0.2 fs
0.3 fs
0.4 fs
0.5 fs
Figure 86. DAC Digital Filter Pass-Band Ripple Characteristics
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