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参数资料
| 型号： | E720-EDGE720 |
| 英文描述： | 500 MHz Pin Electronics Driver. Window Comparator. and Load |
| 中文描述： | 500兆赫引脚电子驱动器。窗口比较器。和负载 |
| 文件页数： | 9/31页 |
| 文件大小： | 221K |
| 代理商： | E720-EDGE720 |
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17
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TEST AND MEASUREMENT PRODUCTS
Edge720
Revision 4 / September 24, 2002
Application Information (continued)
Required External Components
DVH (Note 1)
DVH_CAP
DVL_CAP
DVL (Note 1)
100 pF
ANODE
CATHODE
VINP
DOUT
LOAD
VCM_OUT_A(B)
CVA, CVB,
VCM_IN_A, VCM_IN_B (Note 2)
RADJ, FADJ, BIAS (Note 1)
ISK_IN, ISC_IN (Note 1)
A silicon diode with 150 mA of forward current capability is used to
limit the VCC power supply voltage to the load circuit. Its purpose is to ensure
that the VCC – VCM_IN_A(B) breakdown voltage of 16V is not exceeded.
Edge720
VCC
PECL
VEE
+
–
+
–
V
Meter
+
–
0.1
F
0.1
F
0.01
F
0.1
F
0.1
F
VCC
0.1
F
Device
Under
Test(DUT)
47
1K
VCC
(Pin
4)
VCC
(Pin
49)
VCC
(Pin
32)
VCC
(Pin
31)
GND
PECL
VEE
Note 1:
The DVH, DVL, RADJ, FADJ, and BIAS inputs do not normally require bypass capacitors for the Edge720
to operate correctly. However, it is important that the signals supplied to these inputs be routed
carefully to avoid noise pick-up or feedback from the driver output signal. If needed, bypass capacitors
can be placed in front of these inputs to reduce the amount of pick-up.
Note 2:
The ISKIN, ISCIN, VCM_IN_B and VCM_IN_A inputs do not require bypass capacitors if the input traces
are routed to avoid noise pick-up and feedback from the output stage. It is especially important that
the ISK input be routed away from the output stage since this signal is the inverse of the applied
output signal and can feed back to itself, causing oscillations. If needed, bypass capacitors can be
placed before any of these pins without degrading part performance.
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