AD9952/PCB 데이터 시트보기 (PDF) - Analog Devices

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AD9952/PCB

400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer

Analog Devices 

ABSOLUTE MAXIMUM RATINGS

Table 2.

Parameter

Maximum Junction Temperature

DVDD_I/O (Pin 43)

AVDD, DVDD

Digital Input Voltage (DVDD_I/O = 3.3 V)

Digital Input Voltage (DVDD_I/O = 1.8 V)

Digital Output Current

Storage Temperature

Operating Temperature

Lead Temperature (10 sec Soldering)

θJA

θJC

Rating

150°C

4V

2V

–0.7 V to +5.25 V

–0.7 V to +2.2 V

5 mA

–65°C to +150°C

–40°C to +105°C

300°C

38°C/W

15°C/W

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only and 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.

AD9952

DIGITAL

INPUTS

DVDD_I/O

DAC OUTPUTS

IOUT

IOUT

INPUT

COMPARATOR

INPUTS

AVDD

COMP IN

COMP IN

COMPARATOR

OUTPUT

AVDD

AVOID OVERDRIVING

DIGITAL INPUTS.

FORWARD BIASING

ESD DIODES MAY

COUPLE DIGITAL NOISE

ONTO POWER PINS.

MUST TERMINATE

OUTPUTS TO AVDD FOR

CURRENT FLOW. DO

NOT EXCEED THE

OUTPUT VOLTAGE

COMPLIANCE RATING.

Figure 2. Equivalent Input and Output Circuits

Rev. 0 | Page 7 of 28

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