MAX11506 Datasheet, PDF (1/10 Pages) Maxim Integrated Products – Low-Cost, 6-Channel SD Plus HD/SD Selectable Video Filters and Buffers

19-4122; Rev 0; 4/08
EVAALVUAAILTAIOBNLEKIT
Low-Cost, 6-Channel SD Plus HD/SD
Selectable Video Filters and Buffers
General Description
The MAX11506/MAX11507 integrated filters offer six
channels, three for standard-definition (SD) video and
three for either SD or high-definition (HD) video, and
include +6dB output buffers on each channel. These
video filters are ideal for anti-aliasing and DAC smooth-
ing in applications such as set-top boxes, digital video
recorders, DVD players, and personal video recorders.
The MAX11506/MAX11507 video inputs feature a trans-
parent clamp compatible with AC- and DC-coupled input
signals and allow DAC outputs to be directly coupled. The
filters provide -3dB bandwidth of 9.0MHz for the SD filters
and 33MHz for the HD filters. Each channel includes an
output buffer with a gain of +6dB capable of driving a full
2V_P-P video signal into a 150Ω video load. The buffers
drive either AC- or DC-coupled loads and assure a blank-
ing level of below 1V after the backmatch resistor. DC-
coupling eliminates bulky coupling capacitors.
The MAX11506 offers a flat passband while the
MAX11507 features 0.8dB peaking on the three SD-only
channels to compensate for system roll-off. The
MAX11506/MAX11507 operate from a single +5V supply
and are available in the 0°C to +70°C commercial tem-
perature grade. The MAX11506/MAX11507 are offered in
the 16-pin QSOP package.
Applications
Cable and Satellite Set-Top Box Receivers
HDTVs
DVD Players
Personal Video Recorders
Digital Video Recorders (DVRs)
SDTVs
Video On-Demand
HD Recorders
Pin Configuration
TOP VIEW
+
SDIN1 ₁
SDIN2 2
SDIN3 3
V_CC 4
FSEL 5
MAX11506
MAX11507
SD/HDIN1 6
SD/HDIN2 7
SD/HDIN3 8
QSOP
16 SDOUT1
15 SDOUT2
14 SDOUT3
13 GND
12 GND
11 SD/HDOUT1
10 SD/HDOUT2
9 SD/HDOUT3
Features
♦ Three Selectable 6th-Order 9MHz/33MHz
(SD/HD) Filters
♦ Three Fixed 5th-Order 9MHz (SD) Filters
♦ +6dB Output Buffers
♦ Transparent Input Clamp
♦ AC- or DC-Coupled Inputs
♦ AC- or DC-Coupled Outputs
♦ 0.8dB Peaking Passband Response
(MAX11507) on Three SD-Only Channels
♦ Output Buffers Drive a Standard 150Ω Video
Load
♦ Single +5V Power Supply
♦ Lead-Free 16-Pin QSOP Package
Ordering Information
PART
TEMP RANGE
PIN-
FREQUENCY
PACKAGE RESPONSE
MAX11506CEE+ 0°C to +70°C 16 QSOP
Flat
MAX11507CEE+ 0°C to +70°C 16 QSOP
+Denotes a lead-free package.
High
Frequency
Boost
Typical Operating Circuit appears at end of data sheet.
Block Diagram
SDIN1
SDIN2
SDIN3
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
SD/HDIN1
SD/HDIN2
SD/HDIN3
FSEL
MAX11506
MAX11507
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
9MHz, 5TH ORDER
SDOUT1
6dB
6dB
SDOUT2
6dB
SDOUT3
SD/HDOUT1
6dB
6dB
SD/HDOUT2
6dB
9MHz/33MHz, 6TH ORDER
SD/HDOUT3
________________________________________________________________ Maxim Integrated Products 1
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or visit Maxim’s website at www.maxim-ic.com.