AD9981/PCBZ Analog Devices Inc, AD9981/PCBZ Datasheet - Page 3

• Manufacturer Part Number: AD9981/PCBZ
• Manufacturer: Analog Devices Inc

Specifications of AD9981/PCBZ

• Lead Free Status / Rohs Status: Supplier Unconfirmed

EVALUATION BOARD HARDWARE
TYPICAL CONFIGURATION
In most cases, this evaluation board is used to digitize analog
RGB graphics signals and pass the data to another board. To do
this, connect the graphics signals to the 15-pin VGA connector,
supply 5 V to the board, and program the internal serial
register. The digitized data, generated clock signals, and control
signals are passed off the board through the right-side
connector.
POWER
The AD9981 evaluation board contains two 3.3 V voltage
regulators and an adjustable regulator set for 1.8 V. These
regulators supply power to the AD9981. The three regulators
provide power to the three power supplies on the AD9981 (refer
to the AD9981 data sheet). The best performance can be
obtained from the AD9981 when the analog supply (V
D
) and
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the PLL (PV
the primary 3.3 V supply (V
nominally when supplied with 5 V, but work with a range of
voltages. Power is applied to the board through the right-side
connector (Pins 1–4 of J3). Typically, power is supplied from
another board. In the AD9981 evaluation kit, 5 V is supplied by
the 10-bit display interface board.
PROGRAMMING THE INTERNAL CHIP REGISTERS
Hardware and software for programming the AD9981 internal
registers are provided. The hardware consists of a standard
printer cable and a receiver chip located on the panel driver
board. The programming signals come onto the AD9981
evaluation board through Pins 7 and 9 on Connector J3. The
software is included on the installation CD and is described in
the Evaluation Board Software section.
D
) supply have their own regulators separate from
DD
). The three regulators work
AD9981/PCB