The AD is a numerically controlled oscillator The AD offers the user a variety of output .. may not meet the specifications listed in the data sheet. AD evaluation board (EVAL-CNSDZ) is designed to help customers in the AD data sheet available from Analog Devices and should be. Part Number: AD, Maunfacturer: Analog Devices, Part Family: AD, File type: PDF, Document: Datasheet – semiconductor.

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The available outputs are a sinusoidal output or a triangle output. BoxNorwood, MAU. The AD is written to using a 3-wire serial interface. This resets appropriate internal registers to 0 to provide an analog output of midscale. The comparator can accept signals in the range of approximately mV p-p to 1 V p-p. RESET does not reset the phase, frequency, or control registers. A simple DDS chip can implement this equation with three major subcircuits: Consideration must be given to the relationship of the selected output frequency and the reference clock frequency to avoid unwanted output anomalies.

The relationship between RSET and the full-scale current is as follows: Data is transmitted MSB first.

This is datxsheet 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. This determines the magnitude of the full-scale DAC current. The error is expressed in LSBs. An example of a complete bit write is shown in Table Data is loaded into the device as a bit word under the control of a serial clock input SCLK. Datasheeh orders ship within 48 hours of this date.


The DAC can be powered down through hardware or software. The various ranges specified are as follows: Sections of the device that are not being used can be powered down to minimize the current consumption.

AD Datasheet and Product Info | Analog Devices

No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. The DAC can be configured for either single-ended or differential operation. Software is available with the evaluation board, which allows the user to easily program the AD Phase Offset Register 0. To load the remaining eight bits to the AD, P3. This is useful as a coarse clock source. D Page 10 of 29 The endpoints of the transfer function are zero scale, a point 0.

This results in intermediate updates during the writes.

The model has been scheduled for obsolescence, but may still be purchased for a limited time. Sinusoidal Output The SIN ROM converts the phase information from the dataaheet and phase registers into amplitude information, resulting in a sinusoidal signal at the output. Sample availability may be better than production availability.

The power supply lines to the AD should use as large a track as possible to provide low impedance paths and reduce the effects of glitches on the power supply line. For detailed drawings and chemical composition please consult our Package Site. For example, the DAC can be powered down when a clock output is being generated.


Specifically, its output spectrum contains the fundamental plus aliased signals images that occur at multiples of the reference clock frequency and the selected output frequency.

Consuming only datashheet mW of power at 3 V makes the AD an ideal candidate for power-sensitive applications. International prices may differ due to local duties, taxes, fees and exchange rates. The frequency registers are 28 bits; with a 75 MHz clock rate, resolution of 0.

The setup conditions for correct operation of the interface are as follows: Proper operation of the comparator requires good layout strategy. Sections of the device that are not being dtasheet can be powered down to minimize the current consumption. Note however, that consecutive bit writes to the same frequency register are not allowed, switch between frequency registers to do this type of function.

20 mW Power, 2.3 V to 5.5 V, AD9834 Data Sheet

Documents Flashcards Grammar checker. Therefore, they also have a latency associated with them. RESET resets appropriate internal registers to zero; this corresponds to an analog output of midscale. The value for SNR is expressed in decibels. DVDD can have a value from 2. Selecting Data Sources Rev. If a frequency sweep, or something similar, is required, it is recommended that users alternate between the two frequency ad934.