Texas Instruments CLC520 User Manual

CLC520

CLC520 Amplifier with Voltage Controlled Gain, AGC +Amp

Literature Number: SNOS861C

CLC520
Amplifier with Voltage Controlled Gain, AGC +Amp

CLC520 Amplifier with Voltage Controlled Gain, AGC +Amp

May 2001

General Description

The CLC520 is a wideband DC-coupled amplifier with volt­age controlled gain (AGC). The amplifier has a high imped­ance, differential signal input; a high bandwidth, gain control
input; and a single-ended voltage output. Signal channel
performance is outstanding with 160MHz small signal band­width, 0.5 degree linear phase deviation (to 60MHz) and

0.04% signal nonlinearity at 4V
Gain control is very flexible and easy to use. Maximum gain

may be set over a nominal range of 2 to 100 with one
external resistor. In addition, the gain control input provides
more than 40dB of voltage controlled gain adjustment from
the maximum gain setting. For example, a CLC520 may be
set for a maximum gain of 2 (or 6dB) for a voltage controlled
gain range from 40dB to less than 34dB. Alternatively, the
CLC520 could be set for a maximum gain of 100 or (40dB)
for a voltage controlled gain range from 40dB to less than
0dB.

The gain control bandwidth of 100MHz is superb for AGC/
ALC loop stabilization. And since the gain is minimum with a
zero volt input and maximum with a +2 volt input, driving the
control input is easy.

Finally, the CLC520 differential inputs, and ground refer­enced voltage output take the trouble out of designing
DC-coupled AGC circuits for display normalizers; signal lev­eling automatic circuits; etc.

Enhanced Solutions (Military/Aerospace)

SMD Number: 5962-91694
Space level versions also available.
For more information, visit http://www.national.com/mil

PP

output.

Features

n 160MHz, −3dB bandwidth
n 2000V/µsec slew rate
n 0.04% signal nonlinearity at 4V
n −43dB feedthrough at 30MHz
n User adjustable gain range
n Differential voltage input and single-ended voltage

output

PP

output

Applications

n Wide bandwidth AGC systems
n Automatic signal leveling
n Video signal processing
n Voltage controlled filters
n Differential amplifier
n Amplitude modulation

Gain vs. V

g

01275640

Gain vs. V

© 2001 National Semiconductor Corporation DS012756 www.national.com

g

Connection Diagram

01275639

01275629

Pinout

DIP & SOIC

Ordering Information

CLC520

Package Temperature Range

Industrial

14-pin plastic DIP −40˚C to +85˚C CLC520AJP CLC520AJP N14A

14-pin plastic SOIC −40˚C to +85˚C CLC520AJE CLC520AJE M14A

Part Number Package

Marking

NSC

Drawing

www.national.com 2

CLC520

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact theNationalSemiconductor Sales Office/
Distributors for availability and specifications.

Supply Voltage (V
I

OUT

Output is short circuit protected to
ground, but maximum reliability will
be maintained if I
exceed... 60mA

Common Mode Input Voltage
VINDifferential Input Voltage 10V
V

Differential Input Voltage

g

V

Differential Input Voltage

ref

CC

OUT

)

does not

±

7V

±

V

CC

±

V

CC

±

V

CC

Junction Temperature +150˚C
Operating Temperature Range −40˚C to +85˚C
Storage Temperature Range −65˚C to +150˚C
Lead Solder Duration (+300˚C) 10 sec
ESD (human body model) 500V

Operating Ratings

Thermal Resistance

Package (θ
MDIP 55˚C/W 105˚C/W
SOIC 45˚C/W 120˚C/W

)(θ

JC

)

JA

Electrical Characteristics

AV= +10, VCC=±5V, RL= 100Ω,Rf=1kΩ,Rg= 182Ω,Vg= +2V; unless specified

Symbol Parameter Conditions Typ Max/Min (Note 2) Units

Ambient Temperature CLC520AJ +25˚C −40˚C +25˚C +85˚C

Frequency Domain Response

SSBW -3dB Bandwidth V
SSBW V
LSBW V

-3dB Bandwidth V

SBWC Gain Control Channel VIN= +0.2V, Vg= +1VDC 100

Gain Flatness V
GFPL Peaking 0.1MHz to 30MHz 0
GFPH Peaking 0.1MHz to 20MHz 0
GFRL Rolloff 0.1MHz to 30MHz 0.1
GFRH Rolloff 0.1MHz to 60MHz 0.5
LPD Linear Phase Deviation 0.1MHz to 60MHz 0.5
FDTH Feedthrough V
TRS Rise and Fall Time 0.5V Step 2.5
TRL 4.0V Step 3.7
TS Settling Time to
OS Overshoot 0.5V Step 0
SR Slew Rate 4V Step 2000
HD2 2nd Harmonic Distortion 2V
HD3 3rd Harmonic Distortion 2V

Equivalent Output Noise (÷10 for input noise) (Note

SNF Noise floor 1MHz to 200MHz −132

INV Integrated noise 1MHz to 200MHz 800
DG Differential Gain (Note 4) at 3.58MHz 0.15 %
DP Differential PIase (Note 4) at 3.58MHz 0.15 deg

Static, DC Performance

SGNL Integral Signal Nonlinearity V

Gain Accuracy R
GACCU For Nominal Max Gain = 20dB
VOS Output Offset Voltage (Note 5) 40
DVOS Average Temperature Coefficient 100

±

0.1% 2.0V Step 12

<

0.5V

OUT
OUT
OUT
OUT

OUT

= 0V, VIN= -22dBm -38

g

PP
PP

3)

OUT

=1kΩ,Rg= 182Ω

f

PP

<

0.5VPP(AJE only) 140

<

4.0V

PP

<

0.5V

PP

<

0.5V

PP

, 20MHz −47
, 20MHz −60

=4V

PP

160

140

0.04

±

0

>

110

>

90

>

85

>

80

<

0.4

<

0.7

<

0.4

<

1.3

<

1.2

<

-31

<

3.7

<

5

<

18

<

15

>

1450

<

−40

<

−50

<

−130

<

1000

<

0.1

<

±

1.0

<

150

<

400 –

>
>
>

<
<
<

<

>

<
<

<

<

<

<

<

120
100
100

>

80

0.3

0.5

0.3

<

1

<

1

-31

<

3

<

5

<

18

<

15

1450

−40

−50

−130

1000

0.1

±

0.5

120

>

120 MHz

>

100 MHz

>

100 MHz

>

80 MHz

<

0.4 dB

<

0.7 dB

<

0.4 dB

<

1.3 dB

<

1.2 deg

<

-31 dB

<

3ns

<

5ns

<

18 ns

<

15 %

>

1450 V/µsec

<

−35 dBc

<

−45 dBc

<

−129 dBm
(1Hz)

<

1100 µV

<

0.2 %

<

±

0.5 dB

<

150 mV

<

300 µV/˚C

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Electrical Characteristics (Continued)

AV= +10, VCC=±5V, RL= 100Ω,Rf=1kΩ,Rg= 182Ω,Vg= +2V; unless specified

CLC520

Symbol Parameter Conditions Typ Max/Min (Note 2) Units

IB Input Bias Current (Note 5) 12
DIB Average Temperature Doefficient 100
IOS Input Offset Current 0.5
DIOS Average Temperature Coefficient 5
PSS Power Supply Sensitivity Output Referred DC 10
CMRR Common Mode Rejection Ratio Input Referred 70
ICC Supply Current (Note 5) No Load 28
RIN V
CIN Capacitance 1
DMIR V
CMIR Common Mode Voltage Range
RINC V
CINC Capacitance 1
VGHI V
VGLO For Min Gain 0.4
RO Output Impedance At DC 0.1
VO Output Voltage Range No Load
IO Output Current

Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.

Note 2: Max/min ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are determined
from tested parameters.

Note 3: Measured at A
Note 4: Differential gain and phase are measured at: A

at 3.58 MHz.
Note 5: AJ-level: spec. is 100% tested at +25˚C.

Signal Input Resistance 200

IN

Differential Voltage Range Rg= 182Ω only

IN

Control Input Resistance 750

g

Input Voltage For Max Gain 1.6

g

= 10, Vg= +2V

VMAX

= +20, Vg= +2V, RL= 150Ω,Rf=2kΩ,Rg= 182Ω, equivalent video signal of 0-100 IRE with 40 IRE

V

±

280

±

2.2

±

3.5

±

60

<

61

<

415 -

<

4

<

40 -

<

28

>

59

<

38

>

50

<

2

±

250

>

±

1.4

>

535

<

2

<

2

>

0

<

0.3

>

±

3

>

±

35

<

28

<

2

<

28

>

59

<

38

>

100

<

2

±

250

>

±

2

>

600

<

2

<

2

>

0

<

0.2

>

±

3.2

>

±

50

<

28 µA

<

165 nA/˚C

<

2µA

<

20 nA/˚C

<

28 mV/V

>

59 dB

<

38 mA

>

100 kΩ

<

2pF

±

210 mV

>

±

2V

>

600 Ω

<

2pF

<

2kΩ

>

0V

<

0.2 Ω

>

±

3.2 V

>

±

50 mA

PP

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