參數(shù)資料
型號(hào)： AD9859YSV-REEL7
廠商： ANALOG DEVICES INC
元件分類： 數(shù)字信號(hào)處理外設(shè)
英文描述： 400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer
中文描述： DSP-NUM CONTROLLED OSCILLATOR, PQFP48
封裝： EXPOSED PAD, PLASTIC, MS-026ABC, QFP-48
文件頁(yè)數(shù)： 12/24頁(yè)
文件大小： 574K
代理商： AD9859YSV-REEL7
AD9859
DAC Output
The AD9859 incorporates an integrated 10-bit current output
DAC.
Unlike most DACs, this output is referenced to AVDD,
not AGND.
Rev. 0 | Page 12 of 24
Two complementary outputs provide a combined full-scale
output current (I
OUT
). Differential outputs reduce the amount of
common-mode noise that might be present at the DAC output,
offering the advantage of an increased signal-to-noise ratio. The
full-scale current is controlled by an external resistor (R
SET
)
connected between the DAC_R
SET
pin and the DAC ground
(AGND_DAC). The full-scale current is proportional to the
resistor value as follows:
OUT
SET
R
I
/
19
.
39
=
The maximum full-scale output current of the combined DAC
outputs is 15 mA, but limiting the output to 10 mA provides the
best spurious-free dynamic range (SFDR) performance. The DAC
output compliance range is AVDD + 0.5 V to AVDD – 0.5 V.
Voltages developed beyond this range cause excessive DAC
distortion and could potentially damage the DAC output cir-
cuitry. Proper attention should be paid to the load termination
to keep the output voltage within this compliance range.
Serial I/O Port
The AD9859 serial port is a flexible, synchronous serial communi-
cations port that allows easy interface to many industry-standard
microcontrollers and microprocessors. The serial I/O port is com-
patible with most synchronous transfer formats, including both the
Motorola 6905/11 SPI and Intel 8051 SSR protocols.
The interface allows read/write access to all registers that configure
the AD9859. MSB first or LSB first transfer formats are supported.
The AD9859’s serial interface port can be configured as a single pin
I/O (SDIO), which allows a 2-wire interface or two unidirectional
pins for in/out (SDIO/SDO), which in turn enables a 3-wire inter-
face. Two optional pins, IOSYNC and CS, enable greater flexibility
for system design in the AD9859.
Register Map and Descriptions
The register map is listed in Table 5.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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AD9859YSVZ 制造商:Analog Devices 功能描述:IC 400 MSPS DDS 制造商:Analog Devices 功能描述:IC, 400 MSPS DDS
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AD9859YSVZ-REEL7 功能描述:IC DDS DAC 10BIT 400MSPS 48TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標(biāo)準(zhǔn)包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)字寬（位）:32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
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