参数资料
型号: AD9735-DPG2-EBZ
厂商: Analog Devices Inc
文件页数: 46/72页
文件大小: 0K
描述: BOARD EVAL FOR AD9735
标准包装: 1
系列: *
AD9734/AD9735/AD9736
Rev. A | Page 50 of 72
APPLICATIONS INFORMATION
DRIVING THE DACCLK INPUT
The DACCLK input requires a low jitter differential drive
signal. It is a PMOS input differential pair powered from the
1.8 V supply, so it is important to maintain the specified 400 mV
input common-mode voltage. Each input pin can safely swing
from 200 mV p-p to 800 mV p-p about the 400 mV common-
mode voltage. While these input levels are not directly LVDS
compatible, DACCLK can be driven by an offset ac-coupled
LVDS signal, as shown in Figure 90.
04862-088
LVDS_P_IN
CLK+
50
Ω
50
Ω
0.1
μF
0.1
μF
LVDS_N_IN
CLK–
VCM = 400mV
Figure 90. LVDS DACCLK Drive Circuit
If a clean sine clock is available, it can be transformer-coupled
to DACCLK, as shown in Figure 107. Use of a CMOS or TTL
clock can also be acceptable for lower sample rates. It is routed
through a CMOS to LVDS translator, then ac-coupled, as
described previously. Alternatively, it can be transformer-
coupled and clamped, as shown in Figure 91.
04862-089
50
Ω
50
Ω
TTL OR CMOS
CLK INPUT
CLK+
CLK–
VCM = 400mV
BAV99ZXCT
HIGH SPEED
DUAL DIODE
0.1
μF
Figure 91. TTL or CMOS DACCLK Drive Circuit
A simple bias network for generating VCM is shown in
Figure 92. It is important to use CVDD18 and CVSS 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 may
degrade the DAC performance.
0
48
62-
0
90
0.1F
1nF
VCM = 400mV
CVDD
1.8V
CVSS
1k
287
Figure 92. DACCLK VCM Generator Circuit
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AD9735-EB 制造商:Analog Devices 功能描述:
AD9735-EBZ 制造商:Analog Devices 功能描述:Evaluation Board For AD9735 DAC, 10-/12-/14-Bit, 1200 MSPS DACs 制造商:Analog Devices 功能描述:EVAL BD FOR AD9735 DAC, 10-/12-/14BIT, 1200 MSPS DACS - Bulk
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AD9736BBC 功能描述:IC DAC 14BIT 1.2GSPS 160CSPBGA RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散(最大):941mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC(0.295",7.50mm 宽) 供应商设备封装:24-SOIC W 包装:带卷 (TR) 输出数目和类型:8 电压,单极 采样率(每秒):*
AD9736BBCRL 功能描述:IC DAC 14BIT 1.2GSPS 160CSPBGA RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散(最大):941mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC(0.295",7.50mm 宽) 供应商设备封装:24-SOIC W 包装:带卷 (TR) 输出数目和类型:8 电压,单极 采样率(每秒):*