AD9915 AD [Analog Devices], AD9915 Datasheet - Page 11

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

Data Sheet
Pin No.
67
82
85
86
1
I = input, O = output.
Mnemonic
EXT_PWR_DWN
SYNC_CLK
MASTER_RESET
I/O_UPDATE
EPAD
I/O
I
O
I
I
1
Description
External Power-Down. Digital input (active high). A high level on this pin initiates the
currently programmed power-down mode.
Clock Output. Digital output. Many of the digital inputs on the chip, such as I/O_UPDATE,
PS[2:0], and the parallel data port (D0 to D31), must be set up on the rising edge of
this signal.
Master Reset. Digital input (active high). Clears all memory elements and sets registers to
default values.
Input/Output Update. Digital input (active high). A high on this pin transfers the contents of
the I/O buffers to the corresponding internal registers.
Exposed Pad. The EPAD must be soldered to ground.
Rev. A | Page 11 of 48
AD9915