AD9915-PCBZ データシートの表示（PDF） - Analog Devices

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AD9915-PCBZ

2.5 GSPS Direct Digital Synthesizer with 12-Bit DAC

Analog Devices 

Data Sheet

FEATURES

2.5 GSPS internal clock speed

Integrated 12-bit DAC

Frequency tuning resolution to 135 pHz

16-bit phase tuning resolution

12-bit amplitude scaling

Programmable modulus

Automatic linear and nonlinear frequency sweeping

capability

32-bit parallel datapath interface

8 frequency/phase offset profiles

Phase noise: −128 dBc/Hz (1 kHz offset at 978 MHz)

Wideband SFDR < −57 dBc

Serial or parallel input/output control

1.8 V/3.3 V power supplies

Software and hardware controlled power-down

88-lead LFCSP package

PLL REF CLK multiplier

Phase modulation capability

Amplitude modulation capability

Multichip synchronization

APPLICATIONS

Agile LO frequency synthesis

Programmable clock generator

FM chirp source for radar and scanning systems

Test and measurement equipment

Acousto-optic device drivers

Polar modulator

Fast frequency hopping

2.5 GSPS Direct Digital Synthesizer

with 12-Bit DAC

AD9915

FUNCTIONAL BLOCK DIAGRAM

AD9915

HIGH SPEED PARALLEL

MODULATION

PORT

LINEAR

SWEEP

BLOCK

2.5GSPS DDS CORE

12-BIT DAC

REF CLK

MULTIPLIER

TIMING AND CONTROL

SERIAL OR PARALLEL

DATA PORT

Figure 1.

Rev. F

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