MAX4028-MAX4029 Maxim, MAX4028-MAX4029 Datasheet
MAX4028-MAX4029
Manufacturer Part Number
MAX4028-MAX4029
Description
Triple/Quad / 2:1 Video Multiplexer-Amplifiers with Input Clamps
Manufacturer
Maxim
Datasheet
1.MAX4028-MAX4029.pdf
(13 pages)
The MAX4028/MAX4029 are 5V, triple/quad, 2:1 voltage-
feedback multiplexer-amplifiers with input clamps and a
fixed gain of +2V/V (6dB). Channel 1 (IN1A and IN1B)
inputs are clamped to the video sync tip of the input sig-
nal, while the remaining inputs can be clamped to either
the video sync tip or the video sync of channel 1 (IN1_).
The latter is referred to as a key clamp and is pin selec-
table. Selectable clamp/key-clamp inputs and fixed-gain
video output buffers make the MAX4028/MAX4029 ideal
for video-source switching applications such as automo-
tive entertainment systems, video projectors, and dis-
plays/TVs. Both devices have 20ns channel switching
times and low ±10mV
them ideal for high-speed video switching applications
such as on-screen display (OSD) insertion.
The MAX4028/MAX4029 have a -3dB large-signal (2V
bandwidth of 130MHz, a -3dB small-signal bandwidth of
210MHz, and a 300V/µs slew rate. Low differential gain
and phase errors of 0.2% and 0.4°, respectively, make
these devices ideal for broadcast video applications.
The MAX4028/MAX4029 are specified over the -40°C to
+85°C extended temperature range and are offered in
16-pin and 20-pin TSSOP/SO packages.
19-3240; Rev 0; 3/04
Pin Configurations appear at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX4028
MAX4029
In-Car Navigation/Entertainment
Blade Servers
Security Systems
Video Projectors
Displays and Digital Televisions
Broadcast and Graphics Video
Set-Top Boxes
Notebook Computers
Video Crosspoint Switching
PART
Multiplexer-Amplifiers with Input Clamps
________________________________________________________________ Maxim Integrated Products
P-P
MUX-AMPS
NO. OF 2:1
General Description
switching transients, making
3
4
Selector Guide
Applications
GAIN
2V/V
2V/V
P-P
)
o Single +5V Operation
o Independently Selectable Sync-Tip or
o Adjustable Key-Clamp Voltage
o 130MHz Large-Signal -3dB Bandwidth
o 210MHz Small-Signal -3dB Bandwidth
o 300V/µs Slew Rate
o 20ns Switching Time
o Ultra-Low ±10mV
o 0.2% Differential Gain/0.4° Phase Error
o Low-Power, High-Impedance Disable Mode
MAX4028EUE
MAX4028EWE
MAX4029EUP
MAX4029EWP
75Ω CABLE
75Ω CABLE
75Ω CABLE
75Ω CABLE
Triple/Quad, 2:1 Video
Key-Clamp Inputs
R
KEYREF
PART
75Ω
75Ω
75Ω
75Ω
6kΩ
0.1µF
0.1µF
0.1µF
0.1µF
C
C
C
C
IN
IN
IN
IN
IN1A
IN1B
IN2A
KEYREF
Typical Operating Circuit
IN2B
CLAMP
CLAMP
CLAMP
CLAMP
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
P-P
Ordering Information
A/B
KEY/CLAMP
Switching Transient
CONTROL
1kΩ
1kΩ
MAX4028
MAX4029
1kΩ
1kΩ
V
CC
16 TSSOP
16 Wide SO
20 TSSOP
20 Wide SO
PIN-PACKAGE
0.1µF
OUT1
OUT2
Features
DISABLE
CLAMP/KEY_2
75Ω
75Ω
+5V
75Ω CABLE
75Ω CABLE
0.01µF
1
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