參數(shù)資料
型號(hào)： AD9953
廠商： Analog Devices, Inc.
元件分類： XO, clock
英文描述： 400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer
中文描述： 400 MSPS的14位，1.8V CMOS的直接數(shù)字頻率合成器
文件頁數(shù)： 20/42頁
文件大?。?/td> 473K
代理商： AD9953
PRELIMINARY TECHNICAL DATA
When CFR1<9> = 1, the serial data I/O pin (SDIO) is configured as an input only pin
(3-wire serial programming mode).
CFR1<8>:
LSB First.
When CFR1<8> = 0 (
default
), MSB first format is active.
When CFR1<8> = 1, the serial interface accepts serial data in LSB first format.
CFR1<7>:
Digital Power Down bit.
When CFR1<7> = 0 (
default
), all digital functions and clocks are active.
When CFR1<7> = 1, all non-IO digital functionality is suspended and all heavily
loaded clocks are stopped. This bit is intended to lower the digital power to nearly
zero, without shutting down the PLL clock multiplier function or the DAC.
CFR1<5>:
DAC Power Down bit.
When CFR1<5> = 0 (
default
), the DAC is enabled for operation.
When CFR1<5> = 1, the DAC is disabled and is in its lowest power dissipation state.
CFR1<4>:
Clock Input Power Down bit.
When CFR1<4> = 0 (
default
), the clock input circuitry is enabled for operation.
When CFR1<4> = 1, the clock input circuitry is disabled and the device is in its
lowest power dissipation state.
CFR1<3>:
External Power Down Mode.
When CFR1<3> = 0
(default)
the external power down mode selected is the “fast
recovery power down” mode. In this mode, when the PwrDwnCtl input pin is high,
the digital logic and the DAC digital logic are powered down. The DAC bias
circuitry, comparator, PLL, oscillator, and clock input circuitry is NOT powered
down.
When CFR1<3> = 1, the external power down mode selected is the “full power
down” mode. In this mode, when the PwrDwnCtl input pin is high, all functions are
powered down. This includes the DAC and PLL, which take a significant amount of
time to power up.
AD9953
REV. PrB 1/30/03
Page 20
Analog Devices, Inc.
相關(guān)PDF資料
PDF描述
AD9953ASV 400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer
AD9953PCB 400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer
AD9954 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9954YSV 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
AD9954YSV-REEL7 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9953/PCB 制造商:Analog Devices 功能描述:400 MSPS, 14BIT DGTL SYNTHESIZER - Bulk
AD9953ASV 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer
AD9953PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer
AD9953YSV 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 400MHz 1-DAC 14-Bit Serial 48-Pin TQFP EP 制造商:Rochester Electronics LLC 功能描述:AD9953 400 MSPS DDS W/ 14 BIT DAC - Bulk 制造商:Analog Devices 功能描述:IC DDS 400MSPS SMD 9953 TQFP48
AD9953YSV-REEL7 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 400MHz 1-DAC 14-Bit Serial 48-Pin TQFP EP T/R
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