AD9953ASV 查看數據表（PDF） - Analog Devices

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AD9953ASV

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

Analog Devices 

PRELIMINARY TECHNICAL DATA

AD9953

NOTES

1Absolute maximum ratings are limiting values to be applied individually, and beyond which the serviceability of the circuit may

be impaired. Functional operability under any of these conditions is not necessarily implied. Exposure of absolute maximum

rating conditions for extended periods of time affect device reliability.

2Wake-Up Time refers to recovery from analog power down modes (see Power Down Modes of Operation). The longest time

required is for the Reference Clock Multiplier PLL to lock up (if it is being used). The Wake-Up Time assumes that there is no

capacitor on DAC_BP, and that the recommended PLL loop filter values are used.

3SYSCLK refers to the actual clock frequency used on-chip by the AD9954. If the Reference Clock Multiplier is used to

multiply the external reference frequency, then the SYSCLK frequency is the external frequency multiplied by the Reference

Clock Multiplier multiplication factor. If the Reference Clock Multiplier is not used, then the SYSCLK frequency is the same as

the external REFCLK frequency.

EXPLANATION OF TEST LEVELS

I–

II –

III –

IV –

V–

VI –

100% Production Tested.

100% Production Tested at +25°C and sample tested at specified temperatures.

Sample Tested Only.

Parameter is guaranteed by design and characterization testing.

Parameter is a typical value only.

Devices are 100% production tested at +25°C and guaranteed by design and characterization testing for industrial

operating temperature range.

ORDERING GUIDE

Model

AD9953ASV

AD9953PCB

Temperature Range

-40°C to +85°C

+25°C

Package Description

48-lead QFP EPAD

Evaluation Board

Package Option

SV-48

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic

charges as high as 4000 V readily accumulate on the human

body and test equipment and can discharge without

detection. Although the AD9953 features proprietary ESD

protection circuitry, permanent damage may occur on

devices subjected to high-energy electrostatic discharges.

Therefore, proper ESD precautions are recommended to

avoid performance degradation or loss of functionality.

REV. PrB 1/30/03

Page 6

Analog Devices, Inc.

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