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參數(shù)資料
| 型號： | MC145073DW |
| 廠商： | MOTOROLA INC |
| 元件分類： | ADC |
| 英文描述： | Dual 16-Bit Stereo Audio Sigma-Delta ADC |
| 中文描述： | 2-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24 |
| 封裝： | SOG-24 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大小： | 224K |
| 代理商： | MC145073DW |
MC145073
6
MOTOROLA
0
– 86
0
24
48
72
96
INPUT FREQUENCY (kHz)
OUTPUT DATA RATE = 48 kHz, FSEL = LOW
120 144 168
192
216 240
264
288
MAXIMUM ALIAS = – 86.713 db AT 24.0 kHz
C
0
– 86
0
24
48
72
96
120 144 168 192 216 240 264 288
INPUT FREQUENCY (kHz)
OUTPUT DATA RATE = 44.1 kHz, FSEL = HIGH
MAXIMUM ALIAS = – 87.5884 db AT 169.125 kHz
C
Figure 3. Digital Filter Response (Wideband)
CLKI = 6.144 MHz
20
0
– 20
– 40
– 60
– 80
– 100
0
12
24
36
48
60
72
84
96
R
DIGITAL FILTER RESPONSE (20 – 25.8 kHz TRANSITION BAND)
INPUT FREQUENCY (kHz)
OUTPUT DATA RATE = 48 kHz, FSEL = HIGH
20
0
– 20
– 40
– 60
– 80
– 100
0
12
24
36
48
60
72
84
96
R
DIGITAL FILTER RESPONSE (20 – 24 kHz TRANSITION BAND)
INPUT FREQUENCY (kHz)
OUTPUT DATA RATE = 44.1 kHz, FSEL = HIGH
Figure 4. Digital Filter Response (Narrowband)
CLKI = 6.144 MHz
SIMULATED DELAYS
0
25
50
75
100
125
150
175
200
225
250
TIME (OUTPUT CLOCKS)
COMB
FILTER
INPUT
COMB
FILTER
OUTPUT
FIR
FILTER
OUTPUT
SIMULATED DELAYS
TIME (OUTPUT CLOCKS)
0
5
10
15
20
25
30
35
40
COMB FILTER INPUT
COMB FILTER OUTPUT
FIR FILTER OUTPUT
Figure 5. Group Delay and Setting Time
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