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AD9780

Features: ·High dynamic range, dual DAC parts·Low noise and intermodulation distortion·Single carrier W-CDMA ACLR = 80 dBc @ 61.44 MHz IF·Innovative switching output stage permits usable outputs beyond Nyquist frequency·LVDS inputs with dual-port or optional interleaved single-port operation·Diffe...

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SeekIC No. : 004273439 Detail

AD9780: Features: ·High dynamic range, dual DAC parts·Low noise and intermodulation distortion·Single carrier W-CDMA ACLR = 80 dBc @ 61.44 MHz IF·Innovative switching output stage permits usable outputs bey...

AD9780 Data Sheet

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Part Number:
AD9780
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

·High dynamic range, dual DAC parts
·Low noise and intermodulation distortion
·Single carrier W-CDMA ACLR = 80 dBc @ 61.44 MHz IF
·Innovative switching output stage permits usable outputs beyond Nyquist frequency
·LVDS inputs with dual-port or optional interleaved single-port operation
·Differential analog current outputs are programmable from 8.6 mA to 31.7 mA full scale
·Auxiliary 10-bit current DACs with source/sink capability for external offset nulling
·Internal 1.2 V precision reference voltage source
·Operates from 1.8 V and 3.3 V supplies
·315 mW power dissipation
·Small footprint, RoHS compliant, 72-lead




Application

·Wireless infrastructure
·W-CDMA, CDMA2000, TD-SCDMA, WiMAX
·Wideband communications
·LMDS/MMDS, point-to-point
·RF signal generators, arbitrary waveform generators




Pinout

Connection Diagram






Specifications

Parameter With Respect to Rating
AVDD33, DVDD33
DVDD18, CVDD18
AGND
DGND
CGND
REFIO

IOUT1P, IOUT1N,
IOUT2P, IOUT2N,
AUX1P, AUX1N,
AUX2P, AUX2N
D15 to D0

CLKP, CLKN

CSB, SCLK, SDIO, SDO

Junction Temperature
Storage Temperature		 AGND, DGND, CGND
AGND, DGND, CGND
DGND, CGND
AGND, CGND
AGND, DGND
AGND

AGND


DGND


CGND

DGND




 −0.3 V to +3.6 V
−0.3 V to +1.98 V
−0.3 V to +0.3 V
−0.3 V to +0.3 V
−0.3 V to +0.3 V
−0.3 V to
AVDD33 + 0.3 V
−1.0 V to
AVDD33 + 0.3 V


−0.3 V to
DVDD33 + 0.3 V
−0.3 V to
CVDD18 + 0.3 V
0.3 V to
DVDD33 + 0.3 V
+125
−65 to +150

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.




Description

The AD9780/AD9781/AD9783 include pin-compatible, high dynamic range, dual digital-to-analog converters (DACs) with 12-/14-/16-bit resolutions, and sample rates of up to 500 MSPS. The devices include specific features for direct conversion transmit applications, including gain and offset compensation, and they interface seamlessly with analog quadrature modulators such as the ADL5370.

A proprietary, dynamic output architecture permits synthesis of analog outputs even above Nyquist by shifting energy away from the fundamental and into the image frequency.

Full programmability is provided through a serial peripheral interface (SPI) port. Some pin-programmable features are also offered for those applications without a






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