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參數資料
| 型號： | AD9262BCPZRL7-5 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 15/32頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 5MHZ 64LFCSP |
| 設計資源： | Interfacing ADL5382 to AD9262 as an RF-to-Bits Solution (CN0062) |
| 標準包裝： | 750 |
| 位數： | 16 |
| 采樣率（每秒）： | 160M |
| 數據接口： | 串行，SPI? |
| 轉換器數目： | 2 |
| 功率耗散（最大）： | 703mW |
| 電壓電源： | 模擬和數字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 2 個單端，雙極；1 個差分，單極 |
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AD9262
Rev. A | Page 22 of 32
Sample Rate Converter
The sample rate converter (SRC) allows the flexibility of a
user-defined output sample rate, enabling a more efficient
and direct interface to the digital receiver blocks.
The sample rate converter performs an interpolation and
resampling procedure to provide an output data rate of
20 MSPS to 168 MSPS. Table 16 and Table 17 detail the
coefficients for the INT1 and INT2 filters. The sinc filters
are a standard implementation.
The relationship between the output sample rate and the Σ-Δ
modulator clock rate is expressed as follows:
fOUT = fMOD ÷ KOUT
Table 16. INT1 Filter Coefficients
Coefficient
Number
Coefficient
Number
Coefficient
C0, C26
15
C7, C19
0
C1, C25
0
C8, C18
2450
C2, C24
97
C9, C17
0
C3, C23
0
C10, C16
5761
C4, C22
361
C11, C15
0
C5, C21
0
C12, C14
20,433
C6, C20
1017
C13
32,768
Table 17. INT2 Filter Coefficients
Coefficient
Number
Coefficient
Number
Coefficient
C0, C14
27
C4, C10
1032
C1, C13
0
C5, C9
0
C2, C12
227
C6, C8
4928
C3, C11
0
C7
8192
If the main clocking source of the AD9262 is provided by the
PLL, it is important, once the PLL has been programmed and
locked, to initiate an SRC reset before programming the desired
KOUT factor. This is done by first writing 0x101[5:0] = 0 and
then rewriting to the same register with the appropriate KOUT
value. In addition, if the AD9262 loses its clock source and then
later regains it, an SRC reset should be initiated.
Table 18. SRC Conversion Factors
0x101[5:0]
KOUT
0x101[5:0]
KOUT
0x101[5:0]
KOUT
0
SRC reset
22
11
44
22
1
4
23
11.5
45
22.5
2
4
24
12
46
23
3
4
25
12.5
47
23.5
4
26
13
48
5
4
27
13.5
49
24.5
6
4
28
14
50
25
7
4
29
14.5
51
25.5
8
4
30
15
52
26
9
4.5
31
15.5
53
26.5
10
5
32
16
54
27
11
5.5
33
16.5
55
27.5
12
6
34
17
56
28
13
6.5
35
17.5
57
28.5
14
7
36
18
58
29
15
7.5
37
18.5
59
29.5
16
8
38
19
60
30
17
8.5
39
19.5
61
30.5
18
9
40
20
62
31
19
9.5
41
20.5
63
31.5
20
10
42
21
10.5
43
21.5
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