The AD9704/AD9705/AD9706/AD9707 are the fourth-generation family in the TxDAC series of high performance, CMOS digital-to-analog converters (DACs). This pin-compatible, 8-/10-/12-/14-bit resolution family is optimized for low power operation, while maintaining excellent dynamic performance. The AD9704/AD9705/AD9706/AD9707 family is pin-compatible with the AD9748/AD9740/AD9742/AD9744 family of TxDAC converters and is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface, LFCSP package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9704/AD9705/AD9706/AD9707 offers exceptional ac and dc performance, while supporting update rates up to 175 MSPS.The flexible power supply operating range of 1.7 V to 3.6 V and low power dissipation of the AD9704/AD9705/AD9706/AD9707 parts make them well suited for portable and low power applications.Power dissipation of the AD9704/AD9705/AD9706/AD9707 can be reduced to 15 mW, with a small trade-off in performance, by lowering the full-scale current output. In addition, a power-down mode reduces the standby power dissipation to approximately 2.2 mW.The AD9704/AD9705/AD9706/AD9707 has an optional serial peripheral interface (SPI?) that provides a higher level of programmability to enhance performance of the DAC. An adjustable output, common-mode feature allows for easy interfacing to other components that require common modes from 0 V to 1.2 V.Edge-triggered input latches and a 1.0 V temperature-compensated band gap reference have been integrated to provide a complete, monolithic DAC solution. The digital inputs support 1.8 V and 3.3 V CMOS logic families.PRODUCT HIGHLIGHTS Pin Compatible. The AD9704/AD9705/AD9706/AD9707 line of TxDAC?converters is pin-compatible with theAD9748/AD9740/AD9742/AD9744 TxDAC line (LFCSP package). Low Power. Complete CMOS DAC operates on a single supply of 3.6 V down to 1.7 V, consuming 50 mW (3.3 V) and 12 mW (1.8 V). The DAC full-scale current can be reduced for lower power operation. Sleep and power-down modes are provided for low power idle periods. Self-Calibration. Self-calibration enables true 14-bit INL and DNL performance in the AD9707. Twos Complement/Binary Data Coding Support. Data input supports twos complement or straight binary data coding. Flexible Clock Input. A selectable high speed, single-ended,and differential CMOS clock input supports 175 MSPS conversion rate. Device Configuration. Device can be configured through pin strapping, and SPI control offers a higher level of programmability. Easy Interfacing to Other Components. Adjustable common-mode output allows for easy interfacing to other signal chain components that accept common-mode levels from 0 V to 1.2 V. On-Chip Voltage Reference. The AD9704/AD9705/AD9706/AD9707 include a 1.0 V temperature-compensated band gap voltage reference. Industry-Standard 32-Lead LFCSP Package.

The AD9740 is a 10-bit resolution, wideband, third generation member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9740 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS. The AD9740?s low power dissipation makes it well suited for portable and low power applications. Its power dissipation can be further reduced to 60 mW with a slight degradation in performance by lowering the full-scale current output. In addition, a power-down mode reduces the standby power dissipation to approximately 15 mW. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a 1.2 V temperature-compensated band gap reference have been integrated to provide a complete monolithic DAC solution. The digital inputs support 3 V CMOS logic families. PRODUCT HIGHLIGHTS The AD9740 is the 10-bit member of the pin-compatible TxDAC family, which offers excellent INL and DNL performance. Data input supports twos complement or straight binary data coding. High speed, single-ended CMOS clock input supports 210 MSPS conversion rate. Low power: Complete CMOS DAC function operates on 135 mW from a 2.7 V to 3.6 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods. On-chip voltage reference: The AD9740 includes a 1.2 V temperature-compensated band gap voltage reference. Industry-standard 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.?APPLICATIONSWideband communication transmit channel Direct IF Base stations Wireless local loops Digital radio links Direct digital synthesis (DDS) Instrumentation

The AD97441 is a 14-bit resolution, wideband, third generation member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9744 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS. The AD9744?s low power dissipation makes it well suited for portable and low power applications. Its power dissipation can be further reduced to a mere 60 mW with a slight degradation in performance by lowering the full-scale current output. Also, a power-down mode reduces the standby power dissipation to approximately 15 mW. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a 1.2 V temperature compensated band gap reference have been integrated to provide a complete monolithic DAC solution. The digital inputs support 3 V CMOS logic families. Product Highlights The AD9744 is the 14-bit member of the pin compatible TxDAC family, which offers excellent INL and DNL performance. Data input supports twos complement or straight binary data coding. High speed, single-ended CMOS clock input supports 210 MSPS conversion rate. Low power: Complete CMOS DAC function operates on 135 mW from a 2.7 V to 3.6 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods. On-chip voltage reference: The AD9744 includes a 1.2 V temperature compensated band gap voltage reference. Industry-standard 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.Applications Wideband communication transmit channel Direct IFs Base stations Wireless local loops Digital radio links Direct digital synthesis (DDS) Instrumentation

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 controller.PRODUCT HIGHLIGHTS Low noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals. Proprietary switching output for enhanced dynamic performance. Programmable current outputs and dual auxiliary DACs provide flexibility and system enhancements.APPLICATIONS Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX Wideband communications LMDS/MMDS, point-to-point RF signal generators, arbitrary waveform generators

The AD9785/AD9787/AD9788 are 12-bit, 14-bit, and 16-bit,high dynamic range TxDAC? devices, respectively, that providea sample rate of 800 MSPS, permitting multicarrier generationup to the Nyquist frequency. Features are included for optimizingdirect conversion transmit applications, including complexdigital modulation, as well as gain, phase, and offset compensation.The DAC outputs are optimized to interface seamlesslywith analog quadrature modulators, such as the ADL5375family from Analog Devices, Inc. A serial peripheral interface(SPI) provides for programming and readback of many internalparameters. Full-scale output current can be programmed overa range of 10 mA to 30 mA. The AD9785/AD9787/AD9788family is manufactured on a 0.18 ?m CMOS process and operatesfrom 1.8 V and 3.3 V supplies. It is enclosed in a 100-lead TQFPpackage.Product Highlights Low noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies. Proprietary DAC output switching technique enhances dynamic performance. CMOS data input interface with adjustable setup and hold. Low power complex 32-bit numerically controlled oscillators (NCOs).Applications Wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM Digital high or low IF synthesis Transmit diversity Wideband communications LMDS/MMDS, point-to-point

The AD9864 is a general-purpose IF subsystem that digitizes alow level, 10 MHz to 300 MHz IF input with a signal bandwidthranging from 6.8 kHz to 270 kHz. The signal chain of the AD9864consists of a low noise amplifier (LNA), a mixer, a band-pass ?-?analog-to-digital converter (ADC), and a decimation filter withprogrammable decimation factor. An automatic gain control(AGC) circuit gives the AD9864 12 dB of continuous gainadjustment. Auxiliary blocks include both clock and localoscillator (LO) synthesizers.The high dynamic range of the AD9864 and inherent antialiasingprovided by the band-pass ?-? converter allow the device to copewith blocking signals up to 95 dB stronger than the desired signal.This attribute often reduces the cost of a radio by reducing IFfiltering requirements. Also, it enables multimode radios of varyingchannel bandwidths, allowing the IF filter to be specified for thelargest channel bandwidth.The SPI port programs numerous parameters of the AD9864,allowing the device to be optimized for any given application.Programmable parameters include synthesizer divide ratios, AGCattenuation and attack/decay time, received signal strength level,decimation factor, output data format, 16 dB attenuator, and theselected bias currents.The AD9864 is available in a 48-lead LFCSP package and operatesfrom a single 2.7 V to 3.6 V supply. The total power consumptionis typically 56 mW and a power-down mode is provided viaserial interfacing.APPLICATIONS Multimode narrow-band radio products Analog/digital UHF/VHF FDMA receivers TETRA, APCO25, GSM/EDGE Portable and mobile radio products SATCOM terminals

The AD9911 is a complete direct digital synthesizer (DDS).This device includes a high speed DAC with excellent widebandand narrowband spurious-free dynamic range (SFDR) as well asthree auxiliary DDS cores without assigned digital-to-analogconverters (DACs). These auxiliary channels are used for spurreduction, multitone generation, or test-tone modulation.The AD9911 is the first DDS to incorporate SpurKillertechnology and multitone generation capability. Multitonemode enables the generation up to four concurrent carriers;frequency, phase and amplitude can be independentlyprogrammed. Multitone generation can be used for systemtests, such as inter-modulation distortion and receiver blockersensitivity. SpurKilling enables customers to improve SFDRperformance by reducing the magnitude of harmoniccomponents and/or the aliases of those harmonic components.Test-tone modulation efficiently enables sine wave modulationof amplitude on the output signal using one of the auxiliaryDDS cores.The AD9911 can perform modulation of frequency, phase, oramplitude (FSK, PSK, ASK). Modulation is implemented bystoring profiles in the register bank and applying data to theprofile pins. In addition, the AD9911 supports linear sweep offrequency, phase, or amplitude for applications such as radarand instrumentation.The DDS acts as a high resolution frequency divider with theREF_CLK as the input and the DAC providing the output. TheREF_CLK input can be driven directly or used in combinationwith an integrated REF_CLK multiplier (PLL). The REF_CLKinput also features an oscillator circuit to support an externalcrystal as the REF_CLK source. The crystal can be used incombination with the REF_CLK multiplier.The AD9911 I/O port offers multiple configurations to providesignificant flexibility. The I/O port offers an SPI-compatiblemode of operation that is virtually identical to the SPI operationfound in earlier Analog Devices DDS products.Flexibility is provided by four data pins (Pin SDIO_0,Pin SDIO_1, Pin SDIO_2, and Pin SDIO_3) that allow fourprogrammable modes of I/O operation.The DAC output is supply referenced and must be terminatedinto AVDD by a resistor and an AVDD center-tapped transformer.The DAC has its own programmable reference to enabledifferent full-scale currents.The DDS core (the AVDD pins and the DVDD pins) is poweredby a 1.8 V supply. The digital I/O interface (SPI) operates at3.3 V and requires that the Pin DVDD_I/O (Pin 49) beconnected to 3.3 V. Applications Agile local oscillator Test and measurement equipment Commercial and amateur radio exciter Radar and sonar Test-tone generation Fast frequency hopping Clock generation

The AD9956 is Analog Devices?s first AgileRF synthesizer.The device is comprised of a DDS and PLL circuitry. The DDSfeatures a 14-bit DAC operating up to 400 MSPS and a 48-bitfrequency tuning word. The PLL Circuitry includes a phasedetector with scaleable 200 MHz inputs (pre-scalar inputsoperate up to 650 MHz) and digital control over the chargepump current. The device also includes a 650 MHz PECL driverwith programmable slew rates.The AD9956 uses advanced DDStechnology, an internal high-speed, high performance D/Aconverter and an advance phase-detector/charge pumpcombination to enable the synthesis of digitally-programmable,frequency-agile analog output sinusoidal waveforms up to2.7 GHz. The AD9956 is designed to provide fast frequencyhopping and fine tuning resolution (48-bit frequency tuningword). Information is loaded into the AD9956 via a serial I/Oport which has a device write speed of 25 MBit/sec. The AD9956DDS block also supports a user defined linear sweep mode ofoperation.The AD9956 is specified to operate over the extendedautomotive range of ?40?C to +125?C.Applications Agile LO frequency synthesis FM chirp source for radar and scanning systems Automotive radars Test and measurement equipment Acousto-optic device drivers

The AD9957 functions as a universal I/Q modulator and agileupconverter for communications systems where cost, size, powerconsumption, and dynamic performance are critical. TheAD9957 integrates a high speed, direct digital synthesizer(DDS), a high performance, high speed, 14-bit digital-to-analogconverter (DAC), clock multiplier circuitry, digital filters, andother DSP functions onto a single chip. It provides basebandupconversion for data transmission in a wired or wirelesscommunications system.The AD9957 is the third offering in a family of quadraturedigital upconverters (QDUCs) that includes the AD9857 andAD9856. It offers performance gains in operating speed, powerconsumption, and spectral performance. Unlike its predecessors,it supports a 16-bit serial input mode for I/Q baseband data.The device can alternatively be programmed to operate either asa single tone, sinusoidal source or as an interpolating DAC.The reference clock input circuitry includes a crystal oscillator,a high speed, divide-by-two input, and a low noise PLL formultiplication of the reference clock frequency.The user interface to the control functions includes a serial porteasily configured to interface to the SPORT of the Blackfin?DSP and profile pins to enable fast and easy shift keying of anysignal parameter (phase, frequency, or amplitude).Applications HFC data, telephony, and video modems Wireless base station transmissions Broadband communications transmissions Internet telephony

The AD9961/AD9963 are pin-compatible, 10-/12-bit, lowpower MxFE? converters that provide two ADC channels withsample rates of 100 MSPS and two DAC channels with samplerates to 170 MSPS. These converters are optimized for transmit and receive signal paths of communication systems requiring lowpower and low cost. The digital interfaces provide flexibleclocking options. The transmit is configurable for 1?, 2?, 4?, and 8? interpolation. The receive path has a bypassable 2? decimating low-pass filter.The AD9961 and AD9963 have five auxiliary analog channels.Three are inputs to a 12-bit ADC. Two of these inputs can beconfigured as outputs by enabling 10-bit DACs. The other two channels are dedicated outputs from two independent 12-bit DACs.The high level of integrated functionality, small size, and lowpower dissipation of the AD9961/AD9963 make them well-suited for portable and low power applications.APPLICATIONS Wireless infrastructure Picocell, femtocell basestations Medical instrumentation Ultrasound AFE Portable instrumentation Signal generators, signal analyzers