AD9480 Просмотр технического описания (PDF) - Analog Devices
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AD9480 Datasheet PDF : 28 Pages
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AD9480
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
44 43 42 41 40 39 38 37 36 35 34
CLK+ 1
CLK– 2
AVDD 3
AGND 4
DRVDD 5
DRGND 6
D0_C (LSB) 7
D0_T (LSB) 8
D1_C 9
D1_T 10
D2_C 11
PIN 1
AD9480
TOP VIEW
(Not to Scale)
33 SENSE
32 AGND
31 AVDD
30 AGND
29 PDWN
28 S1
27 DRGND
26 D7_T (MSB)
25 D7_C (MSB)
24 D6_T
23 D6_C
NC = NO CONNECT 12 13 14 15 16 17 18 19 20 21 22
Figure 3. Pin Configuration
Table 7. Pin Function Descriptions
Pin
No. Mnemonic Description
Pin
No. Mnemonic Description
1 CLK+
Input Clock—True
23 D6_C
Data Output Bit 6—Complement
2 CLK−
Input Clock—Complement
24 D6_T
Data Output Bit 6—True
3 AVDD
3.3 V Analog Supply
25 D7_C
Data Output Bit 7—Complement (MSB)
4 AGND
Analog Ground
26 D7_T
Data Output Bit 7—True (MSB)
5 DRVDD
3.3 V Digital Output Supply
27 DRGND
Digital Ground
6 DRGND
Digital Ground
28 S1
Data Format Select and Duty-Cycle Stabilizer Selection
(See Table 8)
7 D0_C
Data Output Bit 0—Complement (LSB) 29 PDWN
Power-Down Selection (AVDD = Power Down)
8 D0_T
Data Output Bit 0—True (LSB)
30 AGND
Analog Ground
9 D1_C
Data Output Bit 1—Complement
31 AVDD
3.3 V Analog Supply
10 D1_T
Data Output Bit 1—True
32 AGND
Analog Ground
11 D2_C
Data Output Bit 2—Complement
33 SENSE
Reference Mode Selection (See Table 9)
12 D2_T
Data Output Bit 2—True
34 VREF
Voltage Reference Input/Output
13 D3_C
Data Output Bit 3—Complement
35 AGND
Analog Ground
14 D3_T
Data Output Bit 3—True
36 AVDD
3.3 V Analog Supply
15 DRGND
Digital Ground
37 AGND
Analog Ground
16 DCO−
Data Clock Output—Complement
38 VIN−
Analog Input—Complement
17 DCO+
Data Clock Output—True
39 VIN+
Analog Input—True
18 DRVDD
3.3 V Digital Output Supply
40 AGND
Analog Ground
19 D4_C
Data Output Bit 4—Complement
41 AVDD
3.3 V Analog Supply
20 D4_T
Data Output Bit 4—True
42 LVDSBIAS LVDS Output Current Adjust
21 D5_C
Data Output Bit 5—Complement
43 NC1
No Connect (Leave Floating)
22 D5_T
Data Output Bit 5—True
44 AGND
Analog Ground
1 Pin 43 will self-bias to 1.5 V. It can be left floating (as recommended) or tied to AVDD or ground with no ill effects.
Rev. A | Page 8 of 28
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