CLC5622IN National Semiconductor, CLC5622IN Datasheet - Page 17

• Manufacturer Part Number: CLC5622IN
• Description: IC AMP VIDEO DUAL 8-DIP
• Manufacturer: National Semiconductor

Specifications of CLC5622IN

• Applications: Current Feedback
• Number Of Circuits: 2
• -3db Bandwidth: 160MHz
• Slew Rate: 370 V/µs
• Current - Supply: 3.2mA
• Current - Output / Channel: 130mA
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *CLC5622IN

Select the transformer so that it loads the line with a value
very near Z
of the CLC5622 also affects the match. With an ideal trans-
former we obtain:
where Z
and |Z
The load voltage and current will fall in the ranges:
The CLC5622’s high output drive current and low distortion
make it a good choice for the application.
Full Duplex Cable Driver
The circuit shown in Figure 16 below, operates as a full
duplex cable driver which allows simultaneous transmission
and reception of singals on one transmission line.The circuit
on either side of the transmission line uses are CLC5622 as
a cable drive, and the second CLC5622 as a receiver. V
an attenulated version of V
version of V
O(5622)
O(5622)
FIGURE 16. Full Duplex Cable Driver
O
inB
(jω)|
over frequency range. The output impedance
(jω) is the output impedance of the CLC5622
.
<<
R
m
.
inA
, while V
oB
is an attenuated
01500260
oA
is
17
R
the DC gain of the CLC5622, which is used in a difference
mode. R
mitting CLC5622’s are shown in a unity gain configuration
because they consume the least power of any gain, for a
given load. for proper operation we need R
The receiver output voltages are:
where A is the attenuation of the cable Z
output impedance of the CLC5622 (see the Closed-Loop
Output Resistance plot), and |Z
We selected the component values as follows:
These values give excellent isolation from the other input:
The CLC5622 provides large output current drive, while
consuming little supply current, at the nominal bias point. It
also produces low distortion with large signal swings and
heavy loads. These features make the CLC5622 an excel-
lent choice for driving transmission lines.
• R
• R
• R
• R
m1
unity gain.
transmission line.
CLC5622 at A
is used to match the transmission line. R
f1
m1
f2
t2
= R
= (R
= 1.2kΩ, the recommended value for CLC5622 at
= Z
t2
g2
provides good CMRR and DC offset. The trans-
f2
o
||R
= 750Ω ≥ R
= 50Ω, the characteristic impedance of the
g2
V
)-R
= 2
m1
/2 = 25Ω
m1
, the recommended value for the
O(5622)
(jω)|
01500263
O(5622)
<<
f2
= R
f2
R
and R
www.national.com
m1
g2
(jω) is the
.
.
g2
set