AD9142 查看數據表（PDF） - Analog Devices
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AD9142 Datasheet PDF : 65 Pages
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AD9142
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Data Sheet
CVDD18 1
REFP/SYNCP 2
REFN/SYNCN 3
CVDD18 4
RESET 5
TXEN 6
DVDD18 7
FRAMEP 8
FRAMEN 9
D15P 10
D15N 11
DVDD18 12
D14P 13
D14N 14
D13P 15
D13N 16
D12P 17
D12N 18
AD9142
TOP VIEW
(Not to Scale)
54 CS
53 SCLK
52 SDIO
51 IRQ1
50 IRQ2
49 DVDD18
48 DVDD18
47 D0N
46 D0P
45 D1N
44 D1P
43 DVDD18
42 D2N
41 D2P
40 D3N
39 D3P
38 D4N
37 D4P
NOTES
1. EXPOSED PAD (EPAD) MUST BE SOLDERED TO THE GROUND
PLANE (AVSS). THE EPAD PROVIDES AN ELECTRICAL, THERMAL,
AND MECHANICAL CONNECTION TO THE BOARD.
2. EPAD IS THE GROUND CONNECTION FOR CVSS AND DVSS.
Figure 2. Pin Configuration
Table 9. Pin Function Descriptions
Pin No. Mnemonic Description
1
CVDD18
1.8 V PLL Supply. CVDD18 supplies the clock receivers, clock multiplier, and clock distribution.
2
REFP/SYNCP PLL Reference Clock Input, Positive.
3
REFN/SYNCN PLL Reference Clock Input, Negative.
4
CVDD18
1.8 V PLL Supply. CVDD18 supplies the clock receivers, clock multiplier, and clock distribution.
5
RESET
Reset, Active Low. CMOS levels with respect to DVDD18. Recommended reset pulse length is 1 μs.
6
TXEN
Active High Transmit Path Enable. CMOS levels with respect to DVDD18. A low level on this pin triggers three
selectable actions in the DAC. See Register 0x43 in Table 77 for details.
7
DVDD18
1.8 V Digital Supply. Pin 7 supplies power to the digital core, digital data ports, serial port input/output pins, RESET, IRQ1,
and IRQ2.
8
FRAMEP
Frame Input, Positive.
9
FRAMEN
Frame Input, Negative.
10
D15P
Data Bit 15 (MSB), Positive.
11
D15N
Data Bit 15 (MSB), Negative.
12
DVDD18
1.8 V Digital Supply. Pin 12 supplies the power to the digital core and digital data ports.
13
D14P
Data Bit 14, Positive.
14
D14N
Data Bit 14, Negative.
15
D13P
Data Bit 13, Positive.
16
D13N
Data Bit 13, Negative.
17
D12P
Data Bit 12, Positive.
18
D12N
Data Bit 12, Negative.
19
DVDD18
1.8 V Digital Supply. Pin 19 supplies power to the digital core, digital data ports, serial port input/output pins,
RESET, IRQ1, and IRQ2.
20
D11P
Data Bit 11, Positive.
21
D11N
Data Bit 11, Negative.
22
D10P
Data Bit 10, Positive.
23
D10N
Data Bit 10, Negative.
24
D9P
Data Bit 9, Positive.
Rev. 0 | Page 10 of 64
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