AD9910 Analog Devices, AD9910 Datasheet - Page 3

• Manufacturer Part Number: AD9910
• Description: 3.3V CMOS Direct Digital Synthesizer
• Manufacturer: Analog Devices

PRELIMINARY TECHNICAL DATA
GENERAL DESCRIPTION
The AD9910 is a direct digital synthesizer (DDS) featuring an
integrated 14-bit DAC and supporting sample rates up to 1
GSPS. The AD9910 employs an advanced, proprietary DDS
technology that provides a significant reduction in power con-
sumption without sacrificing performance. The DDS/DAC
combination forms a digitally programmable, high frequency,
analog output synthesizer capable of generating a frequency-
agile sinusoidal waveform at frequencies up to 400 MHz. The
user has access to the three signal control parameters used to
control the DDS: frequency, phase and amplitude. The DDS
provides fast frequency hopping and frequency tuning resolu-
tion with its 32-bit accumulator. With a 1GSPS sample rate, the
tuning resolution is ~0.23Hz. The DDS also enables fast phase
Figure 2: AD9910 detailed block diagram
Rev. PrD| Page 3 of 13
and amplitude switching capability.
The AD9910 is controlled by programming its internal control
registers via a serial I/O port. The AD9910 includes an inte-
grated static RAM to support various combinations of fre-
quency, phase and/or amplitude modulation. The AD9910 also
supports a user defined, digitally controlled, linear sweep mode
of operation. In this mode frequency, phase or amplitude can
be varied linearly over time. For more advanced modulation
functions, a high speed parallel data input port is included to
enable direct frequency, phase, amplitude, or polar modulation.
The AD9910 is specified to operate over the extended industrial
temperature range (see Absolute Max Ratings table).
AD9910