參數(shù)資料
型號: HA2556
廠商: Intersil Corporation
英文描述: Wideband Four Quadrant Analog Multiplier (Voltage Output)
中文描述: 寬帶四象限模擬乘法器(電壓輸出)
文件頁數(shù): 15/20頁
文件大?。?/td> 205K
代理商: HA2556
DESIGN INFORMATION
(Continued)
The information contained in this section has been developed through characterization by Intersil Semiconductor and is for use as
application and design information only. No guarantee is implied.
8-21
HA2556
Current Output
Another useful circuit for low voltage applications allows the
user to convert the voltage output of the HA2556 to an out-
put current. The HA-2557 is a current output version offering
100MHz of bandwidth, but its scale factor is fixed and does
not have an output amplifier for additional scaling. Fortu-
nately the circuit in Figure 10 provides an output current that
can be scaled with the value of R
CONVERT
and provides an
output impedance of typically 1M
. The equation for I
OUT
becomes:
B
FIGURE 10. CURRENT OUTPUT
Video Fader
The Video Fader circuit provides a unique function. Here Ch
B is applied to the minus Z input in addition to the minus Y
input. In this way, the function in Figure 11 is generated. V
MIX
will control the percentage of Ch A and Ch B that are mixed
together to produce a resulting video image or other signal.
The Balance equation looks like:
Which simplifies to:
When V
MIX
is 0V the equation becomes V
OUT
= Ch B and
Ch A is removed, conversely when VMIX is 5V the equation
becomes V
OUT
= Ch A eliminating Ch B. For VMIX values 0V
VMIX
5V the output is a blend of Ch A and Ch B.
IOUT
-----------
RCONVERT
--------------------------
×
=
HA-2556
1/5V
X
Y
V
OUT
Z
V
X
+
V
X
-
V
Y
+
V
Y
-
V
Z
+
V
Z
-
I
OUT
A
B
R
CONVERT
+
-
+
-
A
+
-
+
-
VMIX
(
)
ChA
ChB
(
)
×
5 VOUT
ChB
)
=
VOUT
ChB
VMIX
-----------
ChA
ChB
(
)
+
=
FIGURE 11. VIDEO FADER
FIGURE 12. DIFFERENCE OF SQUARES
FIGURE 13. PERCENTAGE DEVIATION
FIGURE 14. DIFFERENCE DIVIDED BY SUM (FOR A + B
0V)
NC
NC
V
Y
+
V
Y
-
-15V
V
OUT
+15V
V
Z
-
V
X
+
NC
NC
50
NC
NC
V
Z
+
CH A
CH B
V
MIX
(0V to 5V)
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
Σ
+
-
REF
+
-
+
-
+
-
HA-2556
1/5V
X
Y
Z
V
X
+
V
X
-
V
Y
+
V
Y
-
V
Z
+
V
Z
-
W = 5(A
2
-B
2
)
A
B
5K
5K
5K
5K
+
-
+
-
A
+
-
+
-
HA-2556
1/5V
X
Y
V
OUT
Z
V
X
+
V
X
-
V
Y
+
V
Y
-
V
Z
+
V
Z
-
W = 100
B
A
A - B
A
95K
5K
R2
R1
R1 and R2 set scale to 1V/%, other scale factors possible
for A
0V.
+
-
+
-
A
+
-
+
-
HA-2556
1/5V
X
Y
V
OUT
Z
V
X
+
V
X
-
V
Y
+
V
Y
-
V
Z
+
V
Z
-
W = 10
B
A
A - B
B + A
5K
5K
+
-
+
-
A
+
-
+
-
Spec Number
511063-883
相關(guān)PDF資料
PDF描述
HA1-2557883 Wideband Four Quadrant Analog Multiplier (Current Output)
HA2557 Wideband Four Quadrant Analog Multiplier (Current Output)
HA2557883 Wideband Four Quadrant Analog Multiplier (Current Output)
HA1-2839-5 600MHz, Very High Slew Rate Operational Amplifier
HA-2839 Very High Slew Rate, Wideband Operational Amplifier(高轉(zhuǎn)換率、寬帶運(yùn)算放大器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA-2556 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:57MHz, Wideband, Four Quadrant, Voltage Output Analog Multiplier
HA2556/883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Wideband Four Quadrant Analog Multiplier (Voltage Output)
HA-2556/883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Wideband Four Quadrant Analog Multiplier (Voltage Output)
HA-2556_08 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:57MHz, Wideband, Four Quadrant, Voltage Output Analog Multiplier
HA2556883 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Wideband Four Quadrant Analog Multiplier (Voltage Output)