AD9915 AD [Analog Devices], AD9915 Datasheet - Page 9

• Manufacturer Part Number: AD9915
• Description: 2.5 GSPS Direct Digital Synthesizer with 12-Bit DAC
• Manufacturer: AD [Analog Devices]

Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 5. Pin Function Descriptions
Pin No.
1, 2, 13 to 15, 68
to 72, 75 to 81,
87, 88
3
4
5
8
9
10
11
Mnemonic
D5 to D7, D16 to
D31, D27 to D31
D15/A7
D14/A6
D13/A5
D12/A4
D11/A3
D10/A2
D9/A1
DVDD_I/O (3.3V)
NOTES
1. THE EPAD MUST BE SOLDERED TO GROUND.
D1/SCLK/RD
D2/SDIO/WR
DVDD (1.8V)
D0/CS/PWD
D4/SYNCIO
D3/SDO
D15/A7
D14/A6
D13/A5
D12/A4
D11/A3
D10/A2
DGND
DGND
D9/A1
D8/A0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
D17
D16
D7
D6
D5
1
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
Description
Parallel Port Pins. The 32-bit parallel port offers the option for serial or parallel programming
of the internal registers. In addition, the parallel port can be configured to provide direct FSK,
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).
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.
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.
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.
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.
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.
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.
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.
Figure 3. Pin Configuration
Rev. A | Page 9 of 48
(Not to Scale)
AD9915
TOP VIEW
66 OSK
65 DROVER
64 DRHOLD
63 DRCTL
62 SYNC_IN
61 SYNC_OUT
60 AVDD (3.3V)
59 REF
58
57
56
55
54
53
52
51
50
49
48
47
46
45
LOOP_FILTER
AVDD (1.8V)
AVDD (1.8V)
REF CLK
REF CLK
AVDD (3.3V)
AVDD (3.3V)
AGND
AVDD (3.3V)
AGND
DAC_RSET
AVDD (3.3V)
AGND
DAC_BP
AD9915