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參數(shù)資料
| 型號： | E693-EDGE693 |
| 英文描述： | 500 MHz Monolithic Dual Pin Electronics Driver |
| 中文描述： | 500 MHz的單片雙引腳電子驅動器 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 77K |
| 代理商： | E693-EDGE693 |
5
2000 Semtech Corp.
www.semtech.com
EDGE HIGH-PERFORMANCE PRODUCTS
Edge693
Circuit Description (continued)
For system level flexibility, the SLEWADJ input is designed
to allow a voltage DAC, a current DAC, or a resistor to a
fixed voltage as possible slew rate control mechanisms
(see Figure 3).
Figure 3. SLEWADJ Inputs
Driver Bias
The BIAS pin is an analog current input that requires a
1.2 mA fixed reference current for the driver. Several
circuit configurations are usable to satisfy this
requirement, the most simple being a fixed resistor to a
fixed power supply, typically VCC (see Figure 4). Looking
into the BIAS node shows a .7 V voltage source with a
1.5 KW impedance, so the equation to select the fixed
resistor is:
(VCC – .7) / (R + 1.5) = 1.2 mA
Alternatively, a current DAC could be used to either
program the BIAS current or to perform subtle
adjustments in the fixed value.
Figure 4. Bias Current Generation
DVLCAP / DVHCAP
These two analog nodes are brought out to better
stabilize the high and low driver levels. Much like placing
decoupling capacitors on the DVL and DVH input pins,
the DVLCAP and DVHCAP pins require a fixed .01
F
chip capacitor (with good high frequency characteristics)
to ground (see Figure 5). A tight layout with minimum
etch is recommended.
Figure 5. DVLCAP and DVHCAP
Thermal Monitor
The Edge693 includes an on-chip thermal monitor
accessible through the THERMAL DIODE pin. This node
connects to 5 diodes in series to VEE (see Figure 6) and
may be used to accurately measure the junction
temperature at any time.
Figure 6. Thermal Diode String
A bias current of 100
A is injected into this node, and
the measured voltage corresponds to a specific junction
temperature with the following equation:
T
J(C) = {(VTHERMAL DIODE – VEE) / 5 – .7} / (–.00208).
1.5K
Rise/Fall
Adjust Current
SLEWADJ
.01
F
.01
F
DVLCAP
DVHCAP
Edge693
Bias Current
Temperature coefficient = –10 mV/C
Thermal Diode
VEE
R
1.2 mA
Bias
Edge693
VCC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| E694079 | 制造商:ELO Touch Solutions 功能描述:ELO-KIT-ECM3-NO 制造商:Elo Touch Solutions Inc 功能描述:IDS COMPUTER MODULE ECM3 WITH NO OS - Bulk |
| E69-40A | 功能描述:按鈕開關 SPDT 10A PANEL MOUNT RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
| E69-40A0 | 制造商:The Cherry Corporation 功能描述:SWITCHES |
| E69-40AA | 功能描述:按鈕開關 MOM SPDT 10A QC RoHS:否 制造商:C&K Components 觸點形式:2 NC - 2 NO 開關功能:ON ? OFF 電流額定值:4 A 電壓額定值 AC:12 V to 250 V 電壓額定值 DC:12 V to 50 V 功率額定值: 安裝風格:Through Hole 照明:Illuminated 照明顏色:None IP 等級:IP 40 端接類型:Solder 觸點電鍍:Silver 執(zhí)行器:Square 蓋顏色: 封裝: 可燃性等級:UL 94 V-0 |
| E694108 | 制造商:Elo Touch Solutions Inc 功能描述:N/C N/R 210PC MIN/10PC MULT - Bulk |
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