參數(shù)資料
型號(hào): AD9776ABSVZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 37/56頁(yè)
文件大?。?/td> 0K
描述: IC DAC 12BIT 1.0GSPS 100TQFP
產(chǎn)品培訓(xùn)模塊: DAC Architectures
標(biāo)準(zhǔn)包裝: 1
位數(shù): 12
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 2
電壓電源: 模擬和數(shù)字
功率耗散(最大): 300mW
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 100-TQFP 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 100-TQFP-EP(14x14)
包裝: 托盤(pán)
輸出數(shù)目和類(lèi)型: 4 電流,單極
采樣率(每秒): 1G
產(chǎn)品目錄頁(yè)面: 785 (CN2011-ZH PDF)
AD9776A/AD9778A/AD9779A
Rev. B | Page 42 of 56
DRIVING THE REFCLK INPUT
The REFCLK input requires a low jitter differential drive signal.
The signal level can range from 400 mV p-p differential to
1.6 V p-p differential centered about a 400 mV input common-
mode voltage. Looking at the single-ended inputs, REFCLK+ or
REFCLK, each input pin can safely swing from 200 mV p-p to
800 mV p-p about the 400 mV common-mode voltage. Although
these input levels are not directly LVDS compatible, REFCLK
can be driven by an offset ac-coupled LVDS signal, as shown in
LVDS_P_IN
REFCLK+
50
0.1F
LVDS_N_IN
REFCLK–
VCM = 400mV
0
645
2-
0
68
Figure 73. LVDS REFCLK Drive Circuit
If a clean sine clock is available, it can be transformer-coupled
to REFCLK, as shown in Figure 73. Use of a CMOS or TTL
clock is also acceptable for lower sample rates. It can be routed
through a CMOS to LVDS translator, and then ac-coupled as
described in this section. Alternatively, it can be transformer-
coupled and clamped, as shown in Figure 74.
50
TTL OR CMOS
CLK INPUT
REFCLK+
REFCLK–
VCM = 400mV
BAV99ZXCT
HIGH SPEED
DUAL DIODE
0.1F
06
452
-06
9
Figure 74. TTL or CMOS REFCLK Drive Circuit
A simple bias network for generating VCM is shown in Figure 75.
It is important to use CVDD18 and CGND for the clock bias
circuit. Any noise or other signal that is coupled onto the clock
is multiplied by the DAC digital input signal and can degrade
DAC performance.
0.1F
1nF
VCM = 400mV
CVDD18
CGND
1k
287
06
45
2-
0
70
Figure 75. REFCLK VCM Generator Circuit
相關(guān)PDF資料
PDF描述
MS27656E25B29SB CONN RCPT 29POS WALL MNT W/SCKT
VE-27Y-MY-F3 CONVERTER MOD DC/DC 3.3V 33W
VE-J1L-MZ-F4 CONVERTER MOD DC/DC 28V 25W
M83723/84G1415N CONN RCPT 15POS JAM NUT W/SCKT
MS3450W32-13SZ CONN RCPT 23POS WALL MNT W/SCKT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9776ABSVZRL 功能描述:DAC 12BIT 1.0GSPS 100-TQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散(最大):100mW 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-LCC(J 形引線) 供應(yīng)商設(shè)備封裝:28-PLCC(11.51x11.51) 包裝:帶卷 (TR) 輸出數(shù)目和類(lèi)型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):143k
AD9776A-DPG2-EBZ 功能描述:BOARD EVALUATION FOR AD9776A RoHS:是 類(lèi)別:編程器,開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 數(shù)模轉(zhuǎn)換器 (DAC) 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率(每秒):- 數(shù)據(jù)接口:串行,SPI? 設(shè)置時(shí)間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581
AD9776A-EBZ 制造商:Analog Devices 功能描述:Dual 12 /14 /16 Bit, 1 GSPS, Digital To Analog Converters Development Kit 制造商:Analog Devices 功能描述:DUAL 16B, 1.0 GSPS TXDAC - Bulk
AD9776BSVZ 功能描述:IC DAC 12BIT DUAL 1GSPS 100TQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散(最大):100mW 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-LCC(J 形引線) 供應(yīng)商設(shè)備封裝:28-PLCC(11.51x11.51) 包裝:帶卷 (TR) 輸出數(shù)目和類(lèi)型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):143k
AD9776BSVZRL 功能描述:IC DAC 12BIT DUAL 1GSPS 100TQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散(最大):100mW 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-LCC(J 形引線) 供應(yīng)商設(shè)備封裝:28-PLCC(11.51x11.51) 包裝:帶卷 (TR) 輸出數(shù)目和類(lèi)型:1 電壓,單極;1 電壓,雙極 采樣率(每秒):143k