General Description
The MAX11504/MAX11505 integrated filters offer four
channels of 5
th
order filters for standard-definition 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, security sys-
tems, digital video recorders (DVRs), DVD players, and
personal video recorders.
The MAX11504/MAX11505 video inputs feature a trans-
parent clamp compatible with AC- and DC-coupled
input signals and allow DAC outputs to be directly cou-
pled. The 5
th
order filters provide a bandwidth of
8.6MHz (typical). The MAX11504 offers a flat passband
response on all channels. The MAX11505 offers a 0.8dB
peaking passband response on Channel 1, resulting in
a bandwidth of 8.9MHz (typical) and a flat passband
response on all other channels.
Each channel includes an output buffer with a gain of
+6dB capable of driving a full 2V
P-P
video signal into two
standard 150
(75
back terminated) video loads. The
buffers drive either AC- or DC-coupled loads and assure
a blanking level below 1V after the back-match resistor.
The MAX11504/MAX11505 operate from a single +5V
supply and are available in the 0°C to +70°C commer-
cial temperature range. These devices are available in
small 10-pin μMAX
packages.
Applications
Set-Top Box Receivers
Digital Video Recorders (DVRs)
Security Video Systems
SDTV
DVD Players
Personal Video Recorders
Video On-Demand
Features
Four-Channel 5
th
Order Filter for Standard-
Definition Video
+6dB Output Buffers
Transparent Input Clamp
AC- or DC-Coupled Inputs
AC- or DC-Coupled Outputs
Output Buffers Can Drive Two Standard 150
Video Loads
12kV HBM ESD Protection on Outputs
Flat Passband Response (MAX11504)
0.8dB Peaking Passband Response on Channel 1
(MAX11505)
Single +5V Power Supply
Small 10-Pin
μ
MAX Package
Ordering Information
M
Four-Channel, Standard-Definition
Video Filter
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
19-1057; Rev 0; 11/07
Note:
All devices are specified over the 0°C to +70°C commer-
cial temperature range.
Simplified Block Diagram
+6dB
+6dB
+6dB
IN1
IN2
IN3
OUT1
OUT2
OUT3
GND
8.6MHz
8.6MHz
8.9MHz*
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
TRANSPARENT
CLAMP
8.6MHz
+6dB
IN4
OUT4
8.6MHz
*MAX11505 WITH 0.8dB PEAKING ON CHANNEL 1
V
CC
MAX11504
MAX11505
PART
PIN-
PACKAGE
PACKAGE
CODE
FREQUENCY
RESPONSE
M A X1 1 5 0 4
C U B+ 10 μMAX
U10+2
Flat
M A X1 1 5 0 5
C U B+ 10 μMAX
U10+2
HF Boost On
Channel 1
Pin Configuration
1
2
3
4
5
10
9
8
7
6
OUT1
OUT2
OUT3
OUT4
IN4
IN3
IN2
IN1
MAX11504
MAX11505
μ
MAX
TOP VIEW
GND
V
CC
μMAX is a registered trademark of Maxim Integrated Products,
Inc.