June 1999
N
CLC5623
Triple, High Output, Video Amplifier
General Description
Features
■
The CLC5623 has a new output stage that delivers high output
drive current (130mA), but consumes minimal quiescent supply
current (3.0mA/ch) from a single 5V supply. Its current feedback
architecture, fabricated in an advanced complementary bipolar
process, maintains consistent performance over a wide range of
gains and signal levels, and has a linear-phase response up to
one half of the -3dB frequency.
130mA output current
■
0.06%, 0.06° differential gain, phase
3.0mA/ch supply current
148MHz bandwidth (A = +2)
-86/-96dBc HD2/HD3 (1MHz)
18ns settling to 0.05%
370V/µs slew rate
■
■
■
■
■
■
■
v
Stable for capacitive loads up to 1000pf
Single 5V or ±5V supplies
The CLC5623 offers 0.1dB gain flatness to 15MHz and differen-
tial gain and phase errors of 0.06% and 0.06°. These features are
ideal for professional and consumer video applications.
Applications
■
Video line driver
The CLC5623 offers superior dynamic performance with a
148MHz small-signal bandwidth, 370V/µs slew rate and 4.4ns
■
ADSL/HDSL driver
■
Coaxial cable driver
rise/fall times (2V
). The combination of low quiescent power,
step
■
UTP differential line driver
high output current drive, and high-speed performance make
the CLC5623 well suited for many battery-powered personal
communication/computing systems.
■
Transformer/coil driver
■
High capacitive load driver
■
Portable/battery-powered applications
■
Differential A/D driver
The ability to drive low-impedance, highly capacitive loads,
with minimum distortion, makes the CLC5623 ideal for cable
applications. The CLC5623 will drive a 100Ω load with only
Maximum Output Voltage vs. RL
10
-78/-94dBc second/third harmonic distortion (A = +2, V
=
v
out
2V , f = 1MHz). With a 25Ω load, and the same conditions, it
produces only -82/-96dBc second/third harmonic distortion.
9
8
pp
VCC = ±5V
7
The CLC5623 can also be used for driving differential-input step-
up transformers for applications such as Asynchronous Digital
Subscriber Lines (ADSL) or High-Bit-Rate Digital Subscriber
Lines (HDSL).
6
5
4
3
2
1
Vs = +5V
When driving the input of high-resolution A/D converters, the
CLC5623 provides excellent -86/-96dBc second/third harmonic
10
100
1000
distortion (A = +2, V
= 2V , f = 1MHz, R = 1kΩ) and fast
v
out
pp L
RL (Ω)
settling time.
Typical Application
Single Supply Cable Driver
Pinout
DIP & SOIC
+5V
NC
NC
1
2
3
4
5
6
7
14 OUT2
13 -IN2
12 +IN2
11 -Vs
6.8µF
+
+
-
5kΩ
NC
0.1µF
10m of 75Ω
Coaxial Cable
0.1µF
4
Vin
5
+
75Ω
1/3
CLC5623
7
Vo
75Ω
+Vs
5kΩ
6
-
0.1µF
+IN1
-IN1
OUT1
10 +IN3
11
1kΩ
-
+
+ -
9
8
-IN3
1kΩ
OUT3
0.1µF
© 1999 National Semiconductor Corporation
Printed in the U.S.A.
http://www.national.com