CLC3800_10 Datasheet, PDF (1/17 Pages) Cadeka Microcircuits LLC. – Triple, Standard Definition Video Amplifiers

Data Sheet
Comlinear^® CLC3800, CLC3801
Triple, Standard Definition Video Amplifiers
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 2V_pp 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
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
General Description
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 2nd-
order 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.
Competitive Comparison Plots (continued on page 11)
0.2
Competitor A
0.1
Competitor B
0
-0.1
CLC3800
Functional Block Diagram
IN1
Gain
OUT1
IN2
Gain
OUT2
IN3
Gain
OUT3
8MHz, 4th Order
Low Pass Filter
CLC3800 - 6dB
CLC3801 - 9dB
CLC3802 - 12dB
Ordering Information
-0.2
-0.3
-0.4 _{VOUT = 2Vpp}
-0.5
0.1
10
0
-10
-20
-30
-40
-50
-60
-70 VOUT = 2Vpp
-80
0.1
Competitor C
1
10
Frequency (MHz)
Competitor C
Competitor B
Competitor A
CLC3800
1
10
100
Frequency (MHz)
Part Number
Gain Package
Pb-Free RoHS Compliant Operating Temperature Range
CLC3800ISO8X 6dB SOIC-8
Yes
Yes
-40°C to +125°C
CLC3801ISO8X† 9dB SOIC-8
Yes
Yes
-40°C to +125°C
CLC3800ILP8X* 6dB DFN-8
Yes
Yes
-40°C to +125°C
*Future product offering. †Not recommended for new design. Moisture sensitivity level for all parts is MSL-1.
Packaging Method
Reel
Reel
Reel
©2008-2010 CADEKA Microcircuits LLC
www.cadeka.com