19-4346; Rev 0; 10/08
KIT
ATION
EVALU
BLE
AVAILA
Low-Cost, 3-Channel, HD/PS/SD/BP
Video Filters with Buffer
General Description
Features
♦
Three Selectable 6th-Order 9MHz/16MHz/33MHz
(SD/PS/HD) Filters
♦
Bypass Mode for High Bandwidth Signals
♦
Transparent Input Clamp
♦
Output Buffers Drive a Standard 150Ω Video Load
♦
±12kV HBM ESD Protection on Outputs
♦
AC- or DC-Coupled Inputs
♦
AC- or DC-Coupled Outputs
♦
+0.8dB Peaking Passband Response (MAX11509)
in SD, PS, and HD Modes
♦
Single +5V Power Supply
♦
Lead-Free, 14-Pin TSSOP Package
MAX11508/MAX11509
The MAX11508/MAX11509 integrated 3-channel video
filters for high-definition (HD), progressive-scan (PS),
standard-definition (SD), and bypass (BP) video
include an output buffer with +6dB gain and are ideal
for digital video disc (DVD) players, set-top box (STB)
receivers, high-definition television (HDTV), digital
video recorders (DVRs), and similar devices.
The MAX11508/MAX11509 video inputs feature a trans-
parent clamp compatible with AC- and DC-coupled
input signals and allow DAC outputs to be directly cou-
pled, eliminating the need for bulky coupling capaci-
tors. The filter bandwidths are selectable to HD, PS,
and SD. A BP mode is provided for 1080p and high-
bandwidth RGB signals. Selectable input bias circuitry
on 2 filter channels offers simple connection to bipolar
video signals such as C, Pb, and Pr.
The MAX11508 filters provide -3dB bandwidths of 9MHz
(SD), 16MHz (PS), 33MHz (HD), and 60MHz (BP). The
MAX11509 filters provide -3dB bandwidths of 10MHz
(SD), 17MHz (PS), 34MHz (HD), and 60MHz (BP).
Each channel includes an output buffer with +6dB gain
that provides a full 2V
P-P
video signal into a 150Ω video
load. The buffers drive either AC- or DC-coupled loads
and assure a blanking level of below 1V after the back-
match resistor. The shutdown mode provided reduces
device current to 1µA (typ).
The MAX11508 offers a flat passband and the
MAX11509 features +0.8dB peaking to compensate for
DAC rolloff. The MAX11508/MAX11509 operate from a
5V power supply and operate over the upper commer-
cial (0°C to +85°C) temperature range. The parts are
offered in the 14-pin TSSOP package.
Ordering Information
PART
MAX11508UUD+
MAX11509UUD+
TEMP RANGE
0°C to +85°C
0°C to +85°C
PIN-PACKAGE
14 TSSOP
14 TSSOP
+Denotes
a lead-free/RoHS-compliant package.
Pin Configuration
TOP VIEW
V
CC
1
FSEL0 2
Y/G_IN 3
Pb/B_IN 4
Pr/R_IN 5
BIAS 6
N.C. 7
Applications
Cable and Satellite STB Receivers
HDTV
DVD Players
Personal Video Recorders
DVRs
Video-On-Demand
HD Recorders
+
14 N.C.
13 FSEL1
MAX11508
MAX11509
12 Y/G_OUT
11 Pb/B_OUT
10 Pr/R_OUT
9 SHDN
8 GND
TSSOP
Typical Operating Circuit appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
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.
Low-Cost, 3-Channel, HD/PS/SD/BP
Video Filters with Buffer
MAX11508/MAX11509
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ..............................................................-0.3V to +6V
All Other Pins to GND...................................-0.3V to the lower of
(V
CC
+ 0.3V) and +6V
Continuous Power Dissipation (T
A
= +70°C)
14-Pin TSSOP (derate 10mW/°C above +70°C) .......796.8mW
Maximum Current into Any Pin Except V
CC
and GND .....±50mA
Operating Temperature Range…. ..........................0°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Junction Temperature ......................................................+150°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
(V
CC
= +5V, R
LOAD
= 150Ω to GND, C
IN
= 0.1µF, T
A
= 0°C to +85°C, all frequency responses are relative to 100kHz, unless other-
wise noted.) (Note 1)
PARAMETER
DC CHARACTERISTICS
Supply Current
Supply Voltage Range
Input Voltage Range
Power-Down Current
Digital Input High Voltage
Digital Input Low Voltage
STANDARD-DEFINITION VIDEO
-1dB Bandwidth
-3dB Bandwidth
Stopband Attenuation
Low-Frequency Gain
Differential Gain
Differential Phase
Total Harmonic Distortion
Signal-to-Noise Ratio
Group Delay
Power-Supply Rejection Ratio
f
1dB
f
3dB
A
SB
A
V
dG
dφ
THD
SNR
t
G
PSRR
MAX11508, T
A
= +25°C
MAX11509, T
A
= +25°C
MAX11508
MAX11509
f = 27MHz
No load
All channels
All channels
V
OUT
= 1.4V
P-P
, f = 1MHz, all channels
2V
P-P
signal to RMS noise,
f = 100kHz to 4.2MHz
f = 4.5MHz
DC, all channels
35
5.6
4.5
5
7.9
8.6
9.0
10
48
6.0
0.7
0.7
-60
71
59
50
6.6
MHz
MHz
dB
dB
%
Degrees
dB
dB
ns
dB
I
CC
V
DD
V
IN
I
PD
V
IH
V
IL
Referenced to GND if DC-coupled
BIAS = high
BIAS = low
2.0
0.8
No load
4.75
24
5.00
1.4
1
15
35
5.25
mA
V
V
µA
V
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Low-Cost, 3-Channel, HD/PS/SD/BP
Video Filters with Buffer
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, R
LOAD
= 150Ω to GND, C
IN
= 0.1µF, T
A
= 0°C to +85°C, all frequency responses are relative to 100kHz, unless other-
wise noted.) (Note 1)
PARAMETER
PROGRESSIVE-SCAN VIDEO
-1dB Bandwidth
-3dB Bandwidth
Stopband Attenuation
Low-Frequency Gain
Total Harmonic Distortion
Signal-to-Noise Ratio
Group Delay
HIGH-DEFINITION VIDEO
-1dB Bandwidth
-3dB Bandwidth
f
1dB
f
3dB
MAX11508, T
A
= +25°C
MAX11509, T
A
= +25°C
MAX11508
MAX11509
f = 37.125MHz
Stopband Attenuation
Low-Frequency Gain
Total Harmonic Distortion
A
SB
A
V
V
OUT
= 1.4V
P-P
, f = 10MHz
THD
V
OUT
= 1.4V
P-P
, f = 15MHz
V
OUT
= 1.4V
P-P
, f = 22MHz
Signal-to-Noise Ratio
Group Delay
BYPASS VIDEO (Note 2)
-3dB Bandwidth
Low-Frequency Gain
Total Harmonic Distortion
Signal-to-Noise Ratio
f
3dB
A
V
THD
SNR
V
OUT
= 1.4V
P-P
, f = 22MHz
2V
P-P
signal to RMS noise,
f = 100kHz to 30MHz
5.4
60
6.0
-40
65
6.6
MHz
dB
dB
dB
SNR
t
G
2V
P-P
signal to RMS noise,
f = 100kHz to 30MHz
f = 20MHz
f = 44.25MHz
f = 74.25MHz
5.4
21
22
30
31
33
34
6.5
14.5
45
6.0
-55
-50
-40
65
25
dB
ns
dB
6.6
dB
dB
MHz
MHz
f
1dB
f
3dB
A
SB
A
V
THD
SNR
t
G
V
OUT
= 1.4V
P-P
, f = 7MHz
2V
P-P
signal to RMS noise,
f = 100kHz to 15MHz
f = 10MHz
MAX11508, T
A
= +25°C
MAX11509, T
A
= +25°C
MAX11508
MAX11509
f = 54MHz
5.6
9
10
13.5
14
16
17
44
6.0
-55
66
47
6.6
MHz
MHz
dB
dB
dB
dB
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX11508/MAX11509
Note 1:
All devices are 100% production tested at T
A
= +25°C.
Note 2:
Output AC-coupled with 220µF into 150Ω to GND.
_______________________________________________________________________________________
3
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