参数资料
型号: TAS3004PFBRG4
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: 55/84页
文件大小: 671K
代理商: TAS3004PFBRG4
8–4
8.6
Input Multiplexer
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 chosen sampling frequency, fS.
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 8–5 and
Figure 8–6 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 8–5. 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 8–6. DAC Digital Filter Passband Ripple Characteristics
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