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參數(shù)資料
| 型號： | AD9952 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | XO, clock |
| 英文描述： | 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer |
| 中文描述： | 400 MSPS的14位，1.8伏的CMOS直接數(shù)字頻率合成 |
| 文件頁數(shù)： | 14/28頁 |
| 文件大?。?/td> | 731K |
| 代理商： | AD9952 |
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AD9952
DAC Output
The AD9952 incorporates an integrated 14-bit current output
DAC.
Unlike most DACs, this output is referenced to AVDD,
not AGND.
Rev. 0 | Page 14 of 28
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 will cause excessive DAC
distortion and could potentially damage the DAC output circuitry.
Proper attention should be paid to the load termination to keep the
output voltage within this compliance range.
Comparator
Many applications require a square wave signal rather than a
sine wave. For example, in most clocking applications a high
slew rate helps to reduce phase noise and jitter. To support these
applications, the AD9952 includes an on-chip comparator. The
comparator has a bandwidth greater than 200 MHz and a
common-mode input range of 1.3 V to 1.8 V. By setting the
comparator power-down bit, CFR1<6>, the comparator can be
turned off to save on power consumption.
Serial IO Port
The AD9952 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 AD9952. MSB first or LSB first transfer formats are supported.
The AD9952’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 AD9952.
Register Map and Descriptions
The register map is listed in Table 5.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9952YSV | 400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer |
| AD9953 | 400 MSPS 14-Bit, 1.8V CMOS Direct Digital Synthesizer |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9952/PCB | 制造商:Analog Devices 功能描述:Evaluation Board For Digital Synthesizer 制造商:Analog Devices 功能描述:400 MSPS 14BIT CMOS DIRECT DGTL SYNTHESIZER - Bulk 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD9952YSV | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:IC DDS 400MSPS SMD 9952 TQFP48 |
| AD9952YSV-REEL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer |
| AD9952YSVZ | 功能描述:IC DDS 14BIT DAC 1.8V 48-TQFP 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 標準包裝: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) |
| AD9952YSVZ | 制造商:Analog Devices 功能描述:IC DDS 400MSPS SMD 9952 TQFP48 |
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