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參數(shù)資料
| 型號： | AD9445BSVZ-125 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 3/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 125MSPS 100-TQFP |
| 設計資源： | Using AD8376 to Drive Wide Bandwidth ADCs for High IF AC-Coupled Appls (CN0002) Using AD8352 as an Ultralow Distortion Differential RF/IF Front End for High Speed ADCs (CN0046) Using ADL5562 Differential Amplifier to Drive Wide Bandwidth ADCs for High IF AC-Coupled Appls (CN0110) |
| 標準包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 125M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 2.6W |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-TQFP 裸露焊盤 |
| 供應商設備封裝： | 100-TQFP-EP（14x14） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
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AD9445
Rev. 0 | Page 11 of 40
Table 7. Pin Function Descriptions—100-Lead TQFP/EP in LVDS Mode
Pin No.
Mnemonic
Description
1
DCS MODE
Clock Duty Cycle Stabilizer (DCS) Control Pin. CMOS compatible. DCS = low (AGND) to
enable DCS (recommended); DCS = high (AVDD1) to disable DCS.
2, 49 to 52
DNC
Do Not Connect. These pins should float.
3
OUTPUT MODE
CMOS-Compatible Output Logic Mode Control Pin. OUTPUT MODE = 0 for CMOS mode;
OUTPUT MODE = 1 (AVDD1) for LVDS outputs.
4
DFS
Data Format Select Pin. CMOS control pin that determines the format of the output data.
DFS = high (AVDD1) for twos complement; DFS = low (ground) for offset binary format.
5
LVDS_BIAS
Set Pin for LVDS Output Current. Place 3.7 kΩ resistor terminated to DRGND.
6, 18 to 20, 32 to 34, 36, 38,
43 to 45, 92 to 97
AVDD1
3.3 V (±5%) Analog Supply.
7
SENSE
Reference Mode Selection. Connect to AGND for internal 1 V reference; connect to
AVDD1 for external reference.
8
VREF
1.0 V Reference I/O. Function dependent on SENSE and external programming resistors.
Decouple to ground with 0.1 μF and 10 μF capacitors.
9, 21, 24, 39, 42, 46, 91, 98, 99,
Exposed Heat Sink
AGND
Analog Ground. The exposed heat sink on the bottom of the package must be
connected to AGND.
10
REFT
Differential Reference Output. Decoupled to ground with 0.1 μF capacitor and to REFB
(Pin 14) with 0.1 μF and 10 μF capacitors.
11
REFB
Differential Reference Output. Decoupled to ground with a 0.1 μF capacitor and to REFT
(Pin 13) with 0.1 μF and 10 μF capacitors.
12 to 17, 25 to 31, 35, 37
AVDD2
5.0 V Analog Supply (±5%).
22
VIN+
Analog Input—True.
23
VIN
Analog Input—Complement.
40
CLK+
Clock Input—True.
41
CLK
Clock Input—Complement.
47, 63, 75, 87
DRGND
Digital Output Ground.
48, 64, 76, 88
DRVDD
3.3 V Digital Output Supply (3.0 V to 3.6 V).
53
D0 (LSB)
D0 Complement Output Bit (LVDS Levels).
54
D0+
D0 True Output Bit.
55
D1
D1 Complement Output Bit.
56
D1+
D1 True Output Bit.
57
D2
D2 Complement Output Bit.
58
D2+
D2 True Output Bit.
59
D3
D3 Complement Output Bit.
60
D3+
D3 True Output Bit.
61
D4
D4 Complement Output Bit.
62
D4+
D4 True Output Bit.
65
D5
D5 Complement Output Bit.
66
D5+
D5 True Output Bit.
67
DCO
Data Clock Output—Complement.
68
DCO+
Data Clock Output—True.
69
D6
D6 Complement Output Bit.
70
D6+
D6 True Output Bit.
71
D7
D7 Complement Output Bit.
72
D7+
D7 True Output Bit.
73
D8
D8 Complement Output Bit.
74
D8+
D8 True Output Bit.
77
D9
D9 Complement Output Bit.
78
D9+
D9 True Output Bit.
79
D10
D10 Complement Output Bit.
80
D10+
D10 True Output Bit.
81
D11
D11 Complement Output Bit.
82
D11+
D11 True Output Bit.
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