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MFG:ADI D/C:09
Part Number: AD9746
MFG: ADI
D/C: 09
Description: The AD9741/AD9743/AD9745/AD9746/AD9747 are pin-compatible, high dynamic range, dual digital-to-analog ...
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AD9746
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DataSheet
General Description
AD9746 General Description
The AD9741/AD9743/AD9745/AD9746/AD9747 are pin-compatible, high dynamic range, dual digital-to-analog converters (DACs) with 8-/10-/12-/ 14-/16-bit resolutions and sample rates of up to 250 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. In addition, some pin-programmable features are offered for those applications without a controller.
AD9746 Maximum Ratings
| Parameter | With Respect to | Rating |
| AVDD33, DVDD33 DVDD18, CVDD18 AVSS DVSS CVSS REFIO IOUT1P, IOUT1N, IOUT2P, IOUT2P, AUX1P, AUX1N, AUX2P, AUX2N P1D15 to P1D0, P2D15 to P2D0 CLKP, CLKN RESET, CSB, SCLK, SDIO, SDO Junction Temperature Storage Temperature |
AVSS DVSS CVSS AVSS DVSS CVSS DVSS CVSS AVSS CVSS AVSS DVSS AVSS AVSS DVSS CVSS DVSS |
−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°C −65°C to +150°C |
AD9746 Features
·High dynamic range, dual DACs
·Low noise and intermodulation distortion
·Single carrier WCDMA ACLR = 80 dBc @ 61.44 MHz IF
·Innovative switching output stage permits useable outputs beyond Nyquist frequency
·LVCMOS 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, Pb-free, 72-Lead LFCSP
·Low noise and intermodulation distortion
·Single carrier WCDMA ACLR = 80 dBc @ 61.44 MHz IF
·Innovative switching output stage permits useable outputs beyond Nyquist frequency
·LVCMOS 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, Pb-free, 72-Lead LFCSP
AD9746 Typical Application
·Wireless infrastructure:
·WCDMA, CDMA2000, TD-SCDMA, WiMAX
·Wideband communications:
·LMDS/MMDS, point-to-point
·Instrumentation:
·RF signal generators, arbitrary waveform generators
·WCDMA, CDMA2000, TD-SCDMA, WiMAX
·Wideband communications:
·LMDS/MMDS, point-to-point
·Instrumentation:
·RF signal generators, arbitrary waveform generators
AD9746 Connection Diagram
AD9746-EBZ
PDF/DataSheet Download
- Datasheet: AD9746-EBZ
- File Size: 653796 KB
- Manufacturer: AD
- Click here to Download
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The AD9741/AD9743/AD9745/AD9746/AD9747 are pin-compatible, high dynamic range, dual digital-to-analog converters (DACs) with 8-/10-/12-/ 14-/16-bit resolutions and sample rates of up to 250 MSPS. The devices include specific features for direct conversion tr...
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