and Buffers. MAX7463 Datasheet


MAX7463 Buffers. Datasheet pdf. Equivalent


MAX7463


(MAX7462 / MAX7463) Single-Channel Video Reconstruction Filters and Buffers
19-3790; Rev 1; 9/05

Single-Channel Video Reconstruction Filters and Buffers
General Description
The MAX7462/MAX7463 single-channel, standard-definition, integrated video reconstruction filters and buffers are ideal for anti-aliasing and digital-to-analog smoothing video applications or wherever analog video is reconstructed from digital data (such as cable/satellite/terrestrial set-top boxes and DVRs). The MAX7462 includes a disable function, which places the output in a high-impedance state allowing multiplexing of multiple output signals. It also has an external gain control that sets the output buffer gain to either +6dB or +9.5dB. The higher gain setting allows a lower DAC output signal than the standard 1VP-P signal. The MAX7463 output buffer has a fixed gain of +6dB. The MAX7462/MAX7463 operate from a single +5V supply and have a flat passband out to 5MHz with a stopband attenuation of -43dB (typ) at 27MHz. These devices can drive two standard 150Ω AC-coupled or DC-coupled video loads. The output black level of the MAX7462/MAX7463 is less than 1V for DC-coupled outputs.
www.DataSheet4U.com

Features
♦ Standard-Definition CVBS Video Reconstruction Filters and Buffers ♦ Passband: -0.05dB at 5MHz ♦ Stopband: -43dB at 27MHz ♦ Selectable Gain: +6dB and +9.5dB (MAX7462) ♦ Output Disable (MAX7462) ♦ Drives 2VP-P into Two 150Ω Video Loads ♦ Output Black Level < 1V for DC-Couple...



MAX7463
19-3790; Rev 1; 9/05
Single-Channel Video Reconstruction Filters
and Buffers
General Description
The MAX7462/MAX7463 single-channel, standard-defini-
tion, integrated video reconstruction filters and buffers
are ideal for anti-aliasing and digital-to-analog smoothing
video applications or wherever analog video is recon-
structed from digital data (such as cable/satellite/terres-
trial set-top boxes and DVRs).
The MAX7462 includes a disable function, which
places the output in a high-impedance state allowing
multiplexing of multiple output signals. It also has an
external gain control that sets the output buffer gain to
either +6dB or +9.5dB. The higher gain setting allows a
lower DAC output signal than the standard 1VP-P sig-
nal. The MAX7463 output buffer has a fixed gain of
+6dB.
The MAX7462/MAX7463 operate from a single +5V
supply and have a flat passband out to 5MHz with a
stopband attenuation of -43dB (typ) at 27MHz.
These devices can drive two standard 150AC-cou-
pled or DC-coupled video loads. The output black level
of the MAX7462/MAX7463 is less than 1V for DC-cou-
pled outputs.
www.DataSheet4U.com The MAX7462 is available in an 8-pin µMAX® package
and an 8-pin SO package. The MAX7463 is available in
an 8-pin SO package. All devices are specified over
the 0°C to +85°C temperature range.
Applications
Cable/Satellite/Terrestrial Set-Top Boxes
DVRs
Hard-Disk Recorders
+5V
Features
Standard-Definition CVBS Video Reconstruction
Filters and Buffers
Passband: -0.05dB at 5MHz
Stopband: -43dB at 27MHz
Selectable Gain: +6dB and +9.5dB (MAX7462)
Output Disable (MAX7462)
Drives 2VP-P into Two 150Video Loads
Output Black Level < 1V for DC-Coupled Output
Very Small µMAX and SO Packages
Ordering Information
PART
PIN-
BUFFER GAIN OUTPUT
PACKAGE
(dB)
DISABLE
MAX7462UUA* 8 µMAX
+6/+9.5
selectable
Yes
MAX7462USA 8 SO
+6/+9.5
selectable
Yes
MAX7463USA 8 SO
+6 fixed
No
Note: All parts are specified over the 0°C to +85°C temperature
range.
*Future product—contact factory for availability.
Pin Configurations appear at end of data sheet.
Functional Diagram
VCC
0.1µF
DAC IN
LOWPASS
FILTER
MAX7462
OUT
+6dB/+9.5dB
75*
220µF
ZO = 75
75
*OPTIONAL
75*
ZO = 75
220µF
GND 75
GAIN DISABLE
µMAX is a registered trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products 1
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.

MAX7463
Single-Channel Video Reconstruction Filters
and Buffers
ABSOLUTE MAXIMUM RATINGS
VCC to GND ........................................................................+6.0V
All Other Pins to GND ...-0.3V to the lower of (VCC + 0.3V) and +6V
Maximum Current into Any Pin Except VCC and GND .....±50mA
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C) …...... 362mW
8-Pin SO (derate 5.9mW/°C above +70°C) .......... 470.6mW
Operating Temperature Range...............................0°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = +5V ±5%, CL = 0 to 20pF, RL = 75, CIN = 0.1µF, gain = +6dB, DISABLE = VCC (MAX7462), TA =TMIN to TMAX, unless other-
wise noted. Typical values are at VCC = +5V, and TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Passband Response
f = 100kHz to 5MHz, relative to 100kHz
-0.65 -0.05 +0.65 dB
Stopband Attenuation
f 27MHz
39 43
dB
Output Dynamic Swing
Output Sync Tip Clamp Level
Gain = GND (MAX7462)
After termination (Note 1)
0.30
2.0
0.45
2.4
0.55
VP-P
V
Group Delay Deviation
f = 100kHz to 4.2MHz
11 ns
Differential Gain
Five-step modulated staircase
0.15 %
Differential Phase
Five-step modulated staircase
0.15 Degrees
Signal-to-Noise Ratio
Low-Frequency Gain Accuracy
Output signal (2VP-P) to RMS noise (100Hz to 5MHz)
f =100kHz, relative to a gain of +6dB
75 dB
-3 +3 %
Line Time Distortion
18µs, 100 IRE bar
0.1 %
Field Time Distortion
130 lines, 18µs, 100 IRE bar
0.1 %
Power-Supply Rejection Ratio
Supply Current
VIN = 100mVP-P, f = 100kHz
No load
35 dB
25 35 mA
Note 1: Measured after 75back-match resistor. Assume a 75termination resistor.
2 _______________________________________________________________________________________




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