Absolute Maximum Ratings, ESD Caution | Analog Devices AD9912

AD9912

ABSOLUTE MAXIMUM RATINGS

Table 3.

Parameter	Rating

Analog Supply Voltage (AVDD)	2 V
Digital Supply Voltage (DVDD)	2 V
Digital I/O Supply Voltage	3.6 V
(DVDD_I/O)
DAC Supply Voltage (AVDD3 Pins)	3.6 V
Maximum Digital Input Voltage	−0.5 V to DVDD_I/O + 0.5 V
Storage Temperature	−65°C to +150°C
Operating Temperature Range	−40°C to +85°C
Lead Temperature	300°C
(Soldering, 10 sec)
Junction Temperature	150°C

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.

THERMAL RESISTANCE

θJA is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages.

Table 4. Thermal Resistance

Package Type	θJA	θJB	θJC	Unit
64-Lead LFCSP	25.2	13.9	1.7	°C/W typical

Note that the exposed pad on the bottom of package must be soldered to ground to achieve the specified thermal performance. See the Typical Performance Characteristics section for more information.

ESD CAUTION

Rev. D Page 7 of 40

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Analog Devices AD9912 Absolute Maximum Ratings, Thermal Resistance, ESD Caution, Parameter Rating, Package Type

Contents

General Description FeaturesBasic Block Diagram Applications Table of Contents DC Specifications SpecificationsParameter Min Typ Max Unit Test Conditions/Comments System Clock Input Total Power DissipationClock Output Drivers Parameter Min Typ Max Unit Test Conditions/Comments AC Specifications Avss − Parameter Rating Absolute Maximum RatingsThermal Resistance ESD Caution Input Pin No Output Pin Type Mnemonic Description PIN Configuration and Function Descriptions Outb ResetIoupdate GND Avss Video BW Typical Performance Characteristics Absolute Phase Noise Using Hstl Driver DDS Run at 200 Msps for 10 MHz Plot Absolute Phase Noise of Unfiltered DAC Output, fOUT = 63 MHz Cmos Output Driver Waveform @ 3.3 INPUT/OUTPUT Termination Recommendations Overview Theory of OperationDirect Digital Synthesizer DDS 1024  DIGITAL-TO-ANALOG DAC OutputReconstruction Filter Solving this equation for FTW yields DAC Spectrum vs. Reconstruction Filter Response Fdbkin Inputs Functional Description Sysclk InputsSysclk PLL Doubler External Loop Filter Sysclk PLL Sysclk PLL MultiplierSysclk PLL multiplier has a 1 GHz VCO at its core Detail of Sysclk Differential Inputs Harmonic Spur Reduction Output Clock Drivers and 2× Frequency Multiplier Spur Reduction Circuit Diagram Thermal Parameters Thermal Performance POWER-ON Reset POWER-UPDefault Output Frequency on POWER-UP Supplies Power Supply Partitioning Serial Control Port PIN Descriptions Serial Control PortOperation of Serial Control Port Operations are changed to LSB first order MSB/LSB First TransfersInstruction Word 16 Bits Read I15 I14 I13 I12 I11 I10 A12 A11 A10 Serial Control Port, 16-Bit Instruction Word, MSB First Parameter Description PLL Register MAP HSR-A Register Descriptions Register 0x0000-Serial Port ConfigurationRegister 0x0010-Power-Down and Enable Power-up default is defined by the start-up pins Register 0x0021-Reserved Register 0x0022-PLL Parameters Register 0x0011-Reserved Register 0x0012-Reset AutoclearingRegister 0x0013-Reset Not Autoclearing Register 0x0020-N-Divider Register 0x0106-S-Divider Register 0x01A7-FTW0 Frequency Tuning WordRegister 0x01A8-FTW0 Frequency Tuning Word Register 0x0105-S-Divider Register 0x01AC-Phase Register 0x01A9-FTW0 Frequency Tuning WordRegister 0x01AA-FTW0 Frequency Tuning Word Register 0x01AB-FTW0 Frequency Tuning Word Register 0x040D to Register 0x0410-Reserved Register 0x0200-HSTL DriverRegister 0x0201-CMOS Driver Register 0x040C-DAC Full-Scale Current Register 0x0506-Spur B Register 0x0503-Spur aRegister 0x0504-Spur a Register 0x0505-Spur B Outline Dimensions AD9912BCPZ-REEL71 Model Temperature Range Package Description Package OptionOrdering Guide AD9912BCPZ1 Rev. D Page 40