AD9914 Ver la hoja de datos (PDF) - Analog Devices
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AD9914 Datasheet PDF : 48 Pages
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Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD9914
D17 1
D16 2
D15/A7 3
D14/A6 4
D13/A5 5
DVDD (1.8V) 6
DGND 7
D12/A4 8
D11/A3 9
D10/A2 10
D9/A1 11
D8/A0 12
D7 13
D6 14
D5 15
DVDD_I/O (3.3V) 16
DGND 17
D4/SYNCIO 18
D3/SDO 19
D2/SDIO/WR 20
D1/SCLK/RD 21
D0/CS/PWD 22
AD9914
TOP VIEW
(Not to Scale)
66 OSK
65 DROVER
64 DRHOLD
63 DRCTL
62 SYNC_IN
61 SYNC_OUT
60 AVDD (3.3V)
59 REF
58 LOOP_FILTER
57 AVDD (1.8V)
56 AVDD (1.8V)
55 REF CLK
54 REF CLK
53 AVDD (3.3V)
52 AVDD (3.3V)
51 AGND
50 AVDD (3.3V)
49 AGND
48 DAC_RSET
47 AVDD (3.3V)
46 AGND
45 DAC_BP
NOTES
1. THE EPAD MUST BE SOLDERED TO GROUND.
Figure 3. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
I/O1 Description
1, 2, 13 to 15, 68 D5 to D7, D16 to I/O Parallel Port Pins. The 32-bit parallel port offers the option for serial or parallel programming
to 72, 75 to 81, D31, D27 to D31
of the internal registers. In addition, the parallel port can be configured to provide direct FSK,
87, 88
PSK, or ASK (or combinations thereof ) modulation data. The 32-bit parallel port configuration
is set by the state of the four function pins (F0 to F3).
3
D15/A7
I/O Parallel Port Pin/Address Line. The state of the F0 to F3 function pins determines if this pin
acts as a line for direct FSK, PSK, or ASK data or as an address line for programming the
internal registers.
4
D14/A6
I/O Parallel Port Pin/Address Line. The state of the F0 to F3 function pins determines if this pin
acts as a line for direct FSK, PSK, or ASK data or as an address line for programming the
internal registers.
5
D13/A5
I/O Parallel Port Pin/Address Line. The state of the F0 to F3 function pins determines if this pin
acts as a line for direct FSK, PSK, or ASK data or as an address line for programming the
internal registers.
8
D12/A4
I/O Parallel Port Pin/Address Line. The state of the F0 to F3 function pins determines if this pin
acts as a line for direct FSK, PSK, or ASK data or as an address line for programming the
internal registers.
9
D11/A3
I/O Parallel Port Pin/Address Line. The state of the F0 to F3 function pins determines if this pin
acts as a line for direct FSK, PSK, or ASK data or as an address line for programming the
internal registers.
10
D10/A2
I/O Parallel Port Pin/Address Line. Multipurpose pin depending on the state of the function pins
(F0 to F3). The state of the F0 to F3 function pins determines if this pin acts as a line for direct
FSK, PSK, or ASK data or as an address line for programming the internal registers.
11
D9/A1
I/O Parallel Port Pin/Address Line. Multipurpose pin depending on the state of the function pins
(F0 to F3). The state of the F0 to F3 function pins determines if this pin acts as a line for direct
FSK, PSK, or ASK data or as an address line for programming the internal registers.
Rev. C | Page 9 of 48
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