Cadeka CLC3800 Triple, standard definition video amplifier Datasheet

Data Sheet
Comlinear CLC3800, CLC3801
®
Triple, Standard Definition Video Amplifiers
The CLC3800 (6dB) and CLC3801 (9dB) are triple low cost video amplifiers
capable of driving 2Vpp into 1 (150Ω), 2 (75Ω), or 3 (50Ω) video loads. The
CLC3800 and CLC3801 feature integrated 8MHz, 4th-order low pass filters
designed to cleanly pass standard definition video signals while filtering out
noise and other unwanted signals , resulting in a crisper, cleaner video signal.
The 4th-order filters provide improved image quality when compared to 2ndorder passive filtering solutions.
The CLC3800 video amplifier offers a fixed gain of 6dB. This integrated
gain compensates for the voltage drop inherent in properly terminated video
loads; ensuring a 1Vpp video signal is present at the load. If additional gain is
required, the CLC3801 video amplifier offers a fixed gain of 9dB.
All three video amplifiers can be driven by DC-coupled signals. Their outputs
can drive either AC- or DC-coupled loads.
These video amplifiers operate from 3V to 7V supplies and consume 8.8mA of
supply current, making them well suited for battery powered devices.
APPLICATIONS
n Cable or satellite set-top-box (STB)
n Portable DVD players
n DVD players
n Portable media players with video out
n Video on demand
n Personal video recorders
Competitive Comparison Plots (continued on page 11)
0.2
Competitor A
Normalized Gain (dB)
0.1
Functional Block Diagram
Competitor B
0
-0.1
CLC3800
-0.2
Competitor C
-0.3
-0.4
Gain
IN1
VOUT = 2Vpp
-0.5
OUT1
0.1
1
10
Frequency (MHz)
10
Gain
8MHz, 4th Order
Low Pass Filter
-10
OUT3
CLC3800 - 6dB
CLC3801 - 9dB
CLC3802 - 12dB
-20
Competitor B
Competitor C
-30
-40
Rev 1C
IN3
0
OUT2
Normalized Gain (dB)
Gain
IN2
-50
-60
Competitor A
VOUT = 2Vpp
-70
CLC3800
-80
0.1
1
Ordering Information
10
100
Frequency (MHz)
Part Number
Gain
Package
Pb-Free
RoHS Compliant
Operating Temperature Range
Packaging Method
CLC3800ISO8X
6dB
SOIC-8
Yes
Yes
-40°C to +125°C
Reel
CLC3801ISO8X†
9dB
SOIC-8
Yes
Yes
-40°C to +125°C
Reel
CLC3800ILP8X*
6dB
DFN-8
Yes
Yes
-40°C to +125°C
Reel
*Future product offering. †Not recommended for new design. Moisture sensitivity level for all parts is MSL-1.
©2008-2010 CADEKA Microcircuits LLC Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
General Description
FEATURES
n Integrated 4th-order, 8MHz filters
n Integrated 6 or 9dB video drivers
n 8.8mA total supply current
n 0.08%/0.04˚ differential gain/phase
error
n DC coupled inputs
n AC or DC coupled outputs
n DC-coupled outputs remove the need
for AC-coupling capacitors
n Each channel can drive 2Vpp into 1, 2,
or 3 video loads (150Ω, 75Ω or 50Ω)
n 0.1% THD
n Operates from 3V to 7V supplies
n Pb-free SOIC-8 package
www.cadeka.com
Data Sheet
SOIC Pin Assignments
SOIC Pin Configuration
1
8
OUT1
IN2
2
7
OUT2
IN3
3
6
OUT3
+VS
4
5
GND
Pin Name
1
IN1
Description
Input, channel 1
2
IN2
Input, channel 2
3
IN3
Input, channel 3
4
+VS
Positive supply
5
GND
Ground
6
OUT3
Output, channel3
7
OUT2
Output, channel 2
8
OUT1
Output, channel 1
DFN Pin Configuration
DFN Pin Configuration
Pin No.
Pin Name
Description
1
IN1
Input, channel 1
2
IN2
Input, channel 2
OUT1
8
1
IN1
OUT2
7
2
IN2
3
IN3
Input, channel 3
4
Positive supply
3
IN3
+VS
5
GND
Ground
6
OUT3
Output, channel3
7
OUT2
Output, channel 2
8
OUT1
Output, channel 1
OUT3
GND
6
4
5
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
IN1
Pin No.
+VS
Bottom View
DFN package: Use Pb-free solder ONLY
Rev 1C
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
2
Data Sheet
Electrical Characteristics at 3V
TA = 25°C, Vs = +3V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling capacitor,
VIN = 1Vpp; unless otherwise noted.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Frequency Domain Response
RL=150Ω, AC-coupled
-1dB Bandwidth
F-3dB
-3dB Bandwidth
FSB
Stopband Attenuation
DG
DP
Differential Gain
Differential Phase
7.6
MHz
RL=75Ω, DC-coupled
7.6
MHz
RL=150Ω, AC-coupled
8.5
MHz
RL=75Ω, DC-coupled
8.5
MHz
at 27MHz, RL=150Ω, AC-coupled
48
dB
at 27MHz, RL=75Ω, DC-coupled
48
dB
NTSC (3.58MHz), AC-coupled
0.7
%
NTSC (3.58MHz), DC-coupled
0.62
%
NTSC (3.58MHz), DC-coupled, RL=75Ω
0.24
%
NTSC (3.58MHz), AC-coupled
0.3
°
NTSC (3.58MHz), DC-coupled
0.13
°
NTSC (3.58MHz), DC-coupled, RL=75Ω
0.25
°
Time Domain Response
GD
Group Delay
Delta delay between 400kHz and 3.58MHz
5.6
ns
PD
Propogation Delay
Delay from input to output, 4.5MHz
65
ns
VOUT = 2Vpp, 1MHz, active video range + sync
0.1
%
VOUT = 1.4Vpp, 3.58MHz, active video range
0.9
%
VOUT = 2Vpp, 1MHz, active video range +
sync, RL=75Ω, DC-coupled
0.1
%
VOUT= 1.4Vpp, 3.58MHz, active video range,
RL=75Ω, DC-coupled
0.9
%
NTC-7 Weighting 100kHz to 4.2MHz
77
dB
400kHz to 3.58MHz (NTSC)
±1
%
400kHz to 4.43MHz (PAL)
±1
%
Channel-to-channel at 1MHz
60
dB
Channel-to-channel at 1MHz, RL=75Ω, DC-coupled
58
dB
Distortion/Noise Response
THD
SNR
Total Harmonic Distortion
Signal to Noise Ratio
CLG
Chroma / Luma Gain
XTALK
Crosstalk
DC Performance
G
Gain(1)
Matching(1)
DC, CLC3800, RL=75Ω, DC-coupled
5.7
6.0
6.3
dB
DC, CLC3801, RL=75Ω, DC-coupled
8.6
9.0
9.4
dB
DC, CLC3802, RL=75Ω, DC-coupled
TBD
12
TBD
dB
Inter-Channel Gain
Output Offset Voltage(1)
VIN=0V, no load
Ib
Input Bias Current(1)
VIN=0V, no load
VIN
Input Voltage Range(1)
Output Voltage, CLC3800(2)
VO
Output Voltage, CLC3801(2)
Output Voltage, CLC3802(2)
400kHz, RL=75Ω, DC-coupled
230
0.08
0.2
dB
330
390
mV
1.4
5
µA
CLC3800
0 to 1.25
V
CLC3801
0 to 0.9
V
2.5
V
VIN=1.1Vpp, RL=150Ω, AC-coupled
VIN=1.1Vpp, RL=75Ω,
DC-coupled(1)
2.35
VIN=1.1Vpp, RL=150Ω, AC-coupled
VIN=1.1Vpp, RL=75Ω,
DC-coupled(1)
PSRR
Power Supply Rejection Ratio
DC , no load, VS = 3V to 5.5V
IS
Supply Current(1)
No load, all 3 channels
2.66
V
2.5
2.32
VIN=1.1Vpp, RL=150Ω, AC-coupled
VIN=1.1Vpp, RL=75Ω, DC-coupled(1)
2.5
2.5
V
2.69
V
TBD
TBD
TBD
V
TBD
V
15
mA
52
8.8
Rev 1C
GMATCH
VOS
dB
Notes:
1. 100% tested at 25°C
2. Designed to handle SD video from -40°C to +125°
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
F-1dB
3
Data Sheet
Electrical Characteristics
TA = 25°C, Vs = +5V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling capacitor,
VIN = 1Vpp; unless otherwise noted.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Frequency Domain Response
RL=150Ω, AC-coupled
-1dB Bandwidth
F-3dB
-3dB Bandwidth
FSB
Stopband Attenuation
DG
DP
Differential Gain
Differential Phase
7.7
MHz
RL=75Ω, DC-coupled
7.7
MHz
RL=150Ω, AC-coupled
8.6
MHz
RL=75Ω, DC-coupled
8.6
MHz
at 27MHz, RL=150Ω, AC-coupled
48
dB
at 27MHz, RL=75Ω, DC-coupled
48
dB
NTSC (3.58MHz), AC-coupled
0.17
%
NTSC (3.58MHz), DC-coupled
0.08
%
NTSC (3.58MHz), DC-coupled, RL=75Ω
0.03
%
NTSC (3.58MHz), AC-coupled
0.18
°
NTSC (3.58MHz), DC-coupled
0.04
°
NTSC (3.58MHz), DC-coupled, RL=75Ω
0.04
°
Time Domain Response
GD
Group Delay
Delta delay between 400kHz and 3.58MHz
5.6
ns
PD
Propogation Delay
Delay from input to output, 4.5MHz
65
ns
VOUT= 2Vpp, 1MHz, active video range + sync
0.1
%
VOUT= 1.4Vpp, 3.58MHz, active video range
0.5
%
VOUT= 2Vpp, 1MHz, active video range + sync,
RL=75Ω, DC-coupled
0.15
%
VOUT= 1.4Vpp, 3.58MHz, active video range,
RL=75Ω, DC-coupled
0.6
%
NTC-7 Weighting 100kHz to 4.2MHz
77
dB
400kHz to 3.58MHz (NTSC)
±1
%
400kHz to 4.43MHz (PAL)
±1
%
Channel-to-channel at 1MHz
-61
dB
Channel-to-channel at 1MHz, RL=75Ω, DC-coupled
-58
dB
Distortion/Noise Response
THD
SNR
Total Harmonic Distortion
Signal to Noise Ratio
CLG
Chroma / Luma Gain
XTALK
Crosstalk
DC Performance
G
Gain(1)
Matching(1)
DC, CLC3800, RL=75Ω, DC-coupled
5.7
6.0
6.3
dB
DC, CLC3801, RL=75Ω, DC-coupled
8.6
9.0
9.4
dB
DC, CLC3802, RL=75Ω, DC-coupled
TBD
12
TBD
dB
Inter-Channel Gain
Output Offset Voltage(1)
VIN=0V, no load
Ib
Input Bias Current(1)
VIN=0V, no load
VRIN
Video Range - Input(1)
Output Voltage, CLC3800(2)
VO
Output Voltage, CLC3801(2)
Output Voltage, CLC3802(2)
400kHz, RL=75Ω, DC-coupled
230
0.08
0.2
dB
330
390
mV
1.4
5
µA
CLC3800
0 to 1.1
0 to 1.4
V
CLC3801
0 to 0.78
0 to 1
V
2.5
V
VIN=1.1Vpp, RL=150Ω, AC-coupled
VIN=1.1Vpp, RL=75Ω,
DC-coupled(1)
2.35
VIN=1.1Vpp, RL=150Ω, AC-coupled
VIN=1.1Vpp, RL=75Ω, DC-coupled(1)
PSRR
Power Supply Rejection Ratio
DC, no load
IS
Supply Current(1)
Total
2.66
V
2.5
2.32
VIN=1.1Vpp, RL=150Ω, AC-coupled
VIN=1.1Vpp, RL=75Ω, DC-coupled(1)
2.5
2.5
V
2.69
V
TBD
TBD
TBD
V
TBD
V
53
9.5
Rev 1C
GMATCH
VOS
dB
15
mA
Notes:
1. 100% tested at 25°C
2. Designed to handle SD video from -40° to +125°
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
F-1dB
4
Data Sheet
Absolute Maximum Ratings
The safety of the device is not guaranteed when it is operated above the “Absolute Maximum Ratings”. The device should
not be operated at these “absolute” limits. Adhere to the “Recommended Operating Conditions” for proper device function. The information contained in the Electrical Characteristics tables and Typical Performance plots reflect the operating
conditions noted on the tables and plots.
Supply Voltage
Input Voltage Range
Output Short Circuit Current
Min
Max
Unit
0
-Vs -0.5V
14
+Vs +0.5V
+110, -85
V
V
mA
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
Parameter
Reliability Information
Parameter
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10s)
Package Thermal Resistance
8-Lead SOIC
8-Lead DFN
Min
Typ
-65
Max
Unit
150
150
260
°C
°C
°C
100
60
°C/W
°C/W
Notes:
Package thermal resistance (qJA), JDEC standard, multi-layer test boards, still air.
ESD Protection
Product
Human Body Model (HBM), output ESD protection
Charged Device Model (CDM)
SOIC-8
DFN-8
5kV
2kV
TBD
TBD
Recommended Operating Conditions
Parameter
Min
Operating Temperature Range
Supply Voltage Range
-40
3
Typ
Max
Unit
+125
7
°C
V
Rev 1C
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
5
Data Sheet
Typical Performance Characteristics at V S = 5V
TA = 25°C, Vs = +5V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling
capacitor, VIN = 1Vpp; unless otherwise noted.
Frequency Response (VOUT = 1Vpp)
10
0
0
-10
-10
-20
-20
Gain (dB)
10
-30
-40
-50
-30
-40
-50
-60
-60
VOUT = 0.2Vpp
-70
VOUT = 1Vpp
-70
0.1
1
10
100
1000
0.1
1
10
Frequency (MHz)
100
1000
Frequency (MHz)
Frequency Response (VOUT = 2Vpp)
Frequency Response (VOUT = 2Vpp)
10
6.1
0
6
5.9
-10
Gain (dB)
Gain (dB)
5.8
-20
-30
-40
5.7
5.6
5.5
5.4
-50
5.3
-60
VOUT = 2Vpp
5.2
-70
0.1
1
10
100
5.1
1000
0.1
Frequency (MHz)
1
10
Frequency (MHz)
Phase vs. Frequency
Group Delay vs. Frequency
20
90
0
80
-20
70
-60
-80
-100
60
Rev 1C
Delay (ns)
-40
Phase (°)
VOUT = 2Vpp
50
40
30
-120
-140
20
VOUT = 2Vpp
-160
VOUT = 2Vpp
10
0.1
1
Frequency (MHz)
©2008-2010 CADEKA Microcircuits LLC 10
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
Gain (dB)
Frequency Response (VOUT = 0.2Vpp)
0.1
1
10
100
Frequency (MHz)
www.cadeka.com
6
Data Sheet
Typical Performance Characteristics at V S = 5V
TA = 25°C, Vs = +5V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling
capacitor, VIN = 1Vpp; unless otherwise noted.
Noise vs. Frequency (SNR)
Crosstalk vs. Frequency
-30
Ch.1 <-> Ch.2
Crosstalk (dB)
-50
Ch.1 <-> Ch.3
-60
-70
Ch.2 <-> Ch.3
-80
-90
VOUT = 2Vpp
-100
0.1
1
10
Frequency (MHz)
Differential Gain and Phase
Harmonic Distortion vs. Output Voltage -30
-40
HD2
HD3
Distortion (dBc)
-50
-60
-70
-80
-90
-100
f = 3.58MHz
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
Output Amplitude (Vpp)
Large Signal Pulse Response
3
Large Signal Pulse Response
3
Input Rise/Fall Time = 140ns
Input/Output Voltage (V)
2
2.5
Output
1.5
1
0.5
Input
0
2
1.5
1
0.5
Input
0
-0.5
-100
Input Rise/Fall Time = 1ns
Output
Rev 1C
Input/Output Voltage (V)
2.5
-0.5
0
100
200
300
400
500
Time (ns)
©2008-2010 CADEKA Microcircuits LLC 600
700
800
900
-100
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
-40
0
100
200
300
400
500
600
700
800
900
Time (ns)
www.cadeka.com
7
Data Sheet
Typical Performance Characteristics at V S = 3V
TA = 25°C, Vs = +3V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling
capacitor, VIN = 1Vpp; unless otherwise noted.
Frequency Response (VOUT = 1Vpp)
10
0
0
-10
-10
-20
-20
Gain (dB)
10
-30
-40
-50
-30
-40
-50
-60
-60
VOUT = 0.2Vpp
-70
VOUT = 1Vpp
-70
0.1
1
10
100
1000
0.1
1
10
Frequency (MHz)
Frequency Response (VOUT = 2Vpp)
6.1
6
0
5.9
-10
5.8
-20
Gain (dB)
Gain (dB)
1000
Frequency Response (VOUT = 2Vpp)
10
-30
-40
5.7
5.6
5.5
5.4
-50
5.3
-60
5.2
VOUT = 0.2Vpp
-70
VOUT = 0.2Vpp
5.1
0.1
1
10
100
1000
0.1
1
Frequency (MHz)
10
Frequency (MHz)
Phase vs. Frequency
Group Delay vs. Frequency
20
90
0
80
-20
70
-60
-80
-100
60
Rev 1C
Delay (ns)
-40
Phase (°)
100
Frequency (MHz)
50
40
30
-120
-140
20
VOUT = 2Vpp
-160
VOUT = 2Vpp
10
0.1
1
Frequency (MHz)
©2008-2010 CADEKA Microcircuits LLC 10
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
Gain (dB)
Frequency Response (VOUT = 0.2Vpp)
0.1
1
10
100
Frequency (MHz)
www.cadeka.com
8
Data Sheet
Typical Performance Characteristics at V S = 3V
TA = 25°C, Vs = +3V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling
capacitor, VIN = 1Vpp; unless otherwise noted.
Noise vs. Frequency (SNR)
Crosstalk vs. Frequency
-30
Ch.1 <-> Ch.2
Crosstalk (dB)
-50
Ch.1 <-> Ch.3
-60
-70
Ch.2 <-> Ch.3
-80
-90
VOUT = 2Vpp
-100
0.1
1
10
Frequency (MHz)
Differential Gain and Phase
Harmonic Distortion vs. Output Voltage -30
HD2
-40
HD3
Distortion (dBc)
-50
-60
-70
-80
-90
-100
RL = 150Ω
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
Output Amplitude (Vpp)
Large Signal Pulse Response
3
Large Signal Pulse Response
3
Input Rise/Fall Time = 140ns
Input/Output Voltage (V)
2
2.5
Output
1.5
1
0.5
Input
0
2
1.5
1
0.5
Input
0
-0.5
-100
Input Rise/Fall Time = 1ns
Output
Rev 1C
Input/Output Voltage (V)
2.5
-0.5
0
100
200
300
400
500
Time (ns)
©2008-2010 CADEKA Microcircuits LLC 600
700
800
900
-100
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
-40
0
100
200
300
400
500
600
700
800
900
Time (ns)
www.cadeka.com
9
Data Sheet
Typical Performance Characteristics Driving Multiple Video Loads
TA = 25°C, Vs = +5V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling
capacitor, VIN = 1Vpp; unless otherwise noted. 1 Load = 150Ω, 2 Loads = 75Ω, 3 Loads = 50Ω, 4 Loads = 37.5Ω.
Frequency Response
Pulse Response
1.5
3 Loads
2 Loads
4 Loads
1.0
2 Loads
-1
1 Load
0.5
-2
Output (V)
Normalized Gain (dB)
0
-3
-4
0.0
-0.5
4 Loads
-5
-6
-1.0
VOUT = 2V
0.2V
pp pp
3 Loads
-7
1 Load
-1.5
0.1
1
10
0.0
0.5
Frequency (MHz)
1.0
1.5
2.0
Time (us)
Differential Gain and Phase
Total Harmonic Distortion
Output Voltage Swing
5.0
1 Load
4.5
2 Loads
3.5
3.0
3 Loads
2.5
2.0
Rev 1C
Output Voltage (V)
4.0
4 Loads
1.5
1.0
0.5
0.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
Input Voltage (V)
©2008-2010 CADEKA Microcircuits LLC Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
1
www.cadeka.com
10
Data Sheet
Typical Competitive Comparison Plots
TA = 25°C, Vs = +5V, input is DC-coupled, input source resistance = 37.5Ω, RL = 150Ω thru a 220μF AC-coupling
capacitor, VIN = 1Vpp; unless otherwise noted.
Frequency Response
Frequency Response
10
Competitor A
0
Competitor B
-10
0
-0.1
Normalized Gain (dB)
Normalized Gain (dB)
0.1
CLC3800
-0.2
Competitor C
-0.3
-20
-40
-50
-60
-0.4
VOUT = 2Vpp
Competitor A
VOUT = 2Vpp
-70
-0.5
CLC3800
-80
0.1
1
10
0.1
1
Frequency (MHz)
10
100
Frequency (MHz)
Total Harmonic Distortion (RL = 150Ω)
Total Harmonic Distortion (RL = 75Ω)
-30
-30
-35
-35
Competitor A
-40
-40
-45
Competitor B
-45
Competitor B
-50
THD (dB)
THD (dB)
Competitor B
Competitor C
-30
-55
-60
Competitor C
-65
Competitor A
-55
Competitor C
-60
-65
-70
-70
CLC3800
VOUT = 2Vpp
-75
-50
CLC3800
-75
-80
VOUT = 2Vpp
-80
0.1
1
10
Frequency (MHz)
0.1
1
10
Frequency (MHz)
Total Harmonic Distortion DC-Coupled Out (RL = 75Ω)
Signal to Noise Ratio and Differential Gain/Phase
-30
-35
-40
Competitor A
-50
Rev 1C
THD (dB)
-45
-55
-60
CLC3800
Competitor C
-65
-70
-75
VOUT = 2Vpp
Competitor B
-80
0.1
1
10
Frequency (MHz)
©2008-2010 CADEKA Microcircuits LLC Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
0.2
www.cadeka.com
11
Data Sheet
Application Information
Basic Operation
2.39V
Output Signal
1.02V
Input Signal
Inputs: DC-Coupled
The inputs must be DC-coupled. Many DACs provide a
current output that is resistively terminated to ground.
These DACs are conveniently DC-coupled to the inputs of
the CLC3800, CLC3801, or CLC3802 as shown in Figure 1.
DC-coupled inputs use fewer components and lowers the
overall system cost.
DAC Load Resistors
per Video DAC/Encoder specs
1
R or Y
Video
DAC/
Encoder
0.97V
2
G or PB
IN1
OUT1
IN2
OUT2
8
7
CLC3800
3
B or PR
IN3
OUT3
+Vs
GND
6
+3V or +5V
4
1.0µF
5
0.1µF
Figure 1. Typical Input Configuration
0.02V
0.00V
Figure 2. Typical DC-coupled Signal for CLC3800
The input voltage range is typically 0V to 1.4V for the
CLC3800 at 5V supply. Due to the internal fixed gain of 6dB
(for the CLC3800) and the internal level shift of nominally
330mV, the VIN range is generally limited by the output. VIN
and VOUT are fully detailed in the Electrical Characteristics
section.
Outputs: AC- or DC-Coupled
Each channel of the CLC3800, CLC3801, and CLC3802 can
drive either AC- or DC-coupled loads. Each channel can
drive single or dual video loads, 150Ω (1 video load) or 75Ω
(2 video loads). Figure 3 shows the typical configuration
for driving either AC- or DC-coupled loads.
With DC-coupled loads, AC-coupling capacitors are not
used. Match the series termination resistors to the typical
cable impedance, 75Ω for standard video cable. Keep the
output connection to the series termination resistors as
short as possible. If driving 2 video loads, place both
resistors close to the CLC3800.
With AC-coupled loads, use an AC-coupling capacitor
of at least 220μF in a 75Ω environment. A value of at
least 220μF will ensure that low frequencies are passed,
preventing video droop across the line, referred to as “tilt”.
The CLC380x Family of video amplifiers add a DC offset,
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
12
Rev 1C
The input termination/source resistance is set by the
application. Any value up to several kΩ can be used. Lower
values reduce noise, but if higher values are needed, there
is little effect on filter shape or distortion performance of
the CLC380x. If the CLC380x is located on the same board
as the video source, and within a few inches, the input
termination resistance is determined by the requirements
of the Video DAC or Encoder. If a cable is needed to
connect the CLC380x to the video source, the termination
must match the cable impedance which is 75Ω for standard
video cable.
0.35V
0.32V
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
The CLC3800, CLC3801, and CLC3802 are 3-channel video
amplifiers that operate with single supply voltages from
3V to 7V. They are designed to accept DC-coupled inputs
and will drive AC- or DC-coupled outputs. Each channel
integrates a DC offset, 4th order Butterworth filters, and
fixed gain video drivers. The filtering is appropriate for
standard definition video signals and has a -3dB cutoff
of 8.6MHz. This cutoff provides an excellent compromise
between flat in-band response and high frequency noise
reduction. The input signals are level shifted prior to the
input filters and output amplifiers.
raising the input signal by approximately 330mV. For
example, when 0V is applied to the input, the output
becomes approximately 330mV above ground. This offset
eliminates sync tip clipping. Figure 2 illustrates a typical DCcoupled input signal and resulting output signal after exiting
the CLC3800.
Data Sheet
1
IN1
OUT1
8
75Ω
220µF
75Ω
220µF
75Ω Video Cables
75Ω
2
OUT2
IN2
7
75Ω
CLC3800
3
IN3
OUT3
220µF
75Ω
6
GND
+Vs
5
AC-Coupling Caps
are Optional
Figure 3. Typical Output Configuration
Power Supply Decoupling
For optimum performance, power supply decoupling
is required. Figure 4 shows the recommended usage
of power supply decoupling capacitors. The 0.1µF
decoupling capacitor must be placed as close to pin 4 as
possible, < 0.1” or < 2.5mm, to be effective. The larger,
1µF capacitor can be placed further away.
1
2
IN1
OUT1
IN2
OUT2
8
IN3
OUT3
General layout and supply bypassing play major roles
in high frequency performance. CADEKA has evaluation
boards to use as a guide for high frequency layout and as
aid in device testing and characterization. Follow the steps
below as a basis for high frequency layout:
7
+Vs
GND
6
+3V or +5V
4
1.0µF
5
• Include 1µF and 0.1µF ceramic capacitors for power
supply decoupling
0.1µF
Figure 4. Recommended Power Supply Decoupling
• Place the 6.8µF capacitor <0.75 inches of the power pin
• Place the 0.1µF capacitor <0.1 inches of the power pin
• Remove the ground plane near the input and output
pins to reduce parasitic capacitance
2.5
• Minimize all trace lengths to reduce series inductances
2
Refer to the evaluation board layouts for more information.
1.5
SOIC-8
1
Evaluation Board Information
The following evaluation boards are available to aid in the
testing and layout of these devices:
0.5
0
-40
-20
0
20
40
60
80
Evaluation Board
Ambient Temperature (°C)
Figure 5. Maximum Power Derating
©2008-2010 CADEKA Microcircuits LLC CEB021
Products
CLC3800, CLC3801 in SOIC packages
www.cadeka.com
13
Rev 1C
Maximum Power Dissipation (W)
The CLC3800 is designed primarily for low voltage
operation with supply values between 3.0V and 5.5V, but
larger supplies can be used. In this situation, DC loads
may not be possible due to thermal considerations. With
single DC loads on all three channels and a 12V supply,
the thermal rise is an additional 45° this gives a total
temperature rise of about 57°.
Layout Considerations
CLC3800
3
When driving DC loads, the supply current is much higher
than in AC applications and care must be taken to dissipate
the extra heat generated. The output signal will swing
from about 0.3V to 2.3V for full swing video. In the worst
case condition, an all white screen with dual DC loads,
the additional thermal rise over the quiescent condition is
about 20°C. An easy way to help distribute this extra heat
is to place a ground plane under the part and add ground
plane on the bottom of the board immediately under the
part with vias between the two planes.
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
75Ω
4
Power Dissipation Considerations with DC-Coupled Loads
Data Sheet
Evaluation Board Schematics
Evaluation board schematics and layouts are shown in
Figures 9-11. Application Note AN-6 provides a detailed
description of the evaluation board.
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
SHORT FOR CLC3800/CLC3801/CLC3802
Figure 11. CEB006 Bottom View
Figure 9. CEB021 Schematic
Figure 10. CEB021 Top View
Rev 1C
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
14
Data Sheet
Typical Application Circuits
DAC Load Resistors
per Video DAC/Encoder specs
DVD Player or STB
IN1
OUT1
8
75Ω
220µF
7
75Ω
220µF
6
75Ω
220µF
75Ω Video Cables
R
75Ω
Video
DAC/
Encoder
2
G or PB
OUT2
IN2
75Ω
CLC3800
3
B or PR
IN3
G
OUT3
B
75Ω
+3V or +5V
4
1.0µF
GND
+Vs
5
0.1µF
AC-Coupling Caps
are Optional
Figure 11. Typical Configuration for Component Video (RGB, YPBPR, or YUV)
DAC Load Resistors
per Video DAC/Encoder specs
DVD Player or STB
1
Y
IN1
OUT1
8
75Ω
220µF
7
75Ω
220µF
6
75Ω
220µF
75Ω
220µF
75Ω Video Cables
Y
75Ω
Video
DAC/
Encoder
2
C
OUT2
IN2
75Ω
CLC3800
3
CV
IN3
OUT3
CV1
75Ω
+3V or +5V
4
1.0µF
C
+Vs
GND
5
0.1µF
CV2
75Ω
AC-Coupling Caps
are Optional
Figure 11. Typical Configuration for Composite Video an extra composite output is available to drive an RF modulator
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
1
R or Y
Rev 1C
©2008-2010 CADEKA Microcircuits LLC www.cadeka.com
15
Data Sheet
DAC Load Resistors
per Video DAC/Encoder specs
DVD Player or STB
1
Y
2
C
OUT1
IN2
OUT2
75Ω
8
S-Video
7
75Ω
220µF
6
75Ω
220µF
75Ω
220µF
CLC3800
3
CVBS
IN3
OUT3
220µF
75Ω
75Ω Video Cables
CVBS1
75Ω
+3V or +5V
4
1.0µF
75Ω
GND
+Vs
5
75Ω Video Cables
0.1µF
CVBS2
75Ω
AC-Coupling Caps
are Optional
Figure 11. Typical Configuration for Composite (CVBS) and S-Video
DAC Load Resistors
per Video DAC/Encoder specs
DVD Player or STB
1
R or Y
IN1
OUT1
8
75Ω
220µF
7
75Ω
220µF
6
75Ω
220µF
75Ω Video Cables
R
75Ω
2
G or PB
OUT2
IN2
75Ω
CLC3800
3
B or PR
IN3
G
OUT3
B
75Ω
+3V or +5V
Video
DAC/
Encoder
4
1.0µF
+Vs
GND
IN1
OUT1
5
0.1µF
1
Y OUT
8
75Ω
220µF
7
75Ω
220µF
6
75Ω
220µF
75Ω Video Cables
Y
75Ω
2
C OUT
OUT2
IN2
75Ω
CLC3800
3
CV OUT
IN3
OUT3
CV
75Ω
+3V or +5V
4
+Vs
GND
5
Rev 1C
1.0µF
C
0.1µF
AC-Coupling Caps
are Optional
Figure 11. Typical Configuration for 6-channel application
©2008-2010 CADEKA Microcircuits LLC Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
Video
DAC/
Encoder
IN1
www.cadeka.com
16
Data Sheet
Mechanical Dimensions
SOIC-8 Package
Comlinear CLC3800, CLC3801 Triple, Standard Definition Video Amplifiers
Rev 1C
For additional information regarding our products, please visit CADEKA at: cadeka.com
CADEKA Headquarters Loveland, Colorado
T: 970.663.5452
T: 877.663.5452 (toll free)
CADEKA, the CADEKA logo design, COMLINEAR, and the COMLINEAR logo design are trademarks or registered trademarks of CADEKA Microcircuits LLC. All other brand and product names may be trademarks of their respective companies.
CADEKA reserves the right to make changes to any products and services herein at any time without notice. CADEKA does not assume any
responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in
writing by CADEKA; nor does the purchase, lease, or use of a product or service from CADEKA convey a license under any patent rights,
copyrights, trademark rights, or any other of the intellectual property rights of CADEKA or of third parties.
Copyright ©2008-2010 by CADEKA Microcircuits LLC. All rights reserved.
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