參數(shù)資料
型號(hào): AD5380BSTZ-3
廠商: Analog Devices Inc
文件頁數(shù): 30/40頁
文件大?。?/td> 0K
描述: IC DAC 14BIT 40CHAN 3V 100LQFP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
產(chǎn)品變化通告: Redesign Change 28/Oct/2011
設(shè)計(jì)資源: 40 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5380 (CN0007)
Output Channel Monitoring Using AD5380 (CN0008)
標(biāo)準(zhǔn)包裝: 1
設(shè)置時(shí)間: 6µs
位數(shù): 14
數(shù)據(jù)接口: I²C,并聯(lián),串行
轉(zhuǎn)換器數(shù)目: 40
電壓電源: 單電源
功率耗散(最大): 125mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤
輸出數(shù)目和類型: 40 電壓,單極
采樣率(每秒): 125k
AD5380
Data Sheet
Rev. C | Page 36 of 40
OPTICAL ATTENUATORS
Based on its high channel count, high resolution, monotonic
behavior, and high level of integration, the AD5380 is ideally
targeted at optical attenuation applications used in dynamic
gain equalizers, variable optical attenuators (VOA), and optical
add-drop multiplexers (OADM). In these applications, each
wavelength is individually extracted using an arrayed wave
guide; its power is monitored using a photodiode, transim-
pedance amplifier and ADC in a closed-loop control system.
The AD5380 controls the optical attenuator for each
wavelength, ensuring that the power is equalized in all
wavelengths before being multiplexed onto the fiber. This
prevents information loss and saturation from occurring at
amplification stages further along the fiber.
ATTENUATOR
AWG
FIBRE
DWDM
OUT
OPTICAL
SWITCH
11
12
1n–1
1n
DWDM
IN
AD5380,
40-CHANNEL,
14-BIT DAC
N:1 MULTIPLEXER
16-BIT ADC
CONTROLLER
TIA/LOG AMP
(AD8304/AD8305)
ADG731
(40:1 MUX)
AD7671
(0V TO 5V, 1MSPS)
PHOTODIODES
ADD
PORTS
DROP
PORTS
03731-044
Figure 44. OADM Using the AD5380 as Part of an Optical Attenuator
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