The MAX9586–MAX9589 are small, low-power, multichannel video amplifiers with integrated reconstruction
filters and input clamps. Specially suited for standarddefinition video signals, these devices are ideal for a
wide range of television and set-top box applications.
The video signals from the outputs of a digital-to-analog
converter (DAC) are AC-coupled to the inputs of the
MAX9586–MAX9589. External video signals, in which
the DC bias is usually not known, can also be AC-coupled to the inputs of the MAX9586–MAX9589. The input
sync-tip clamps set the DC level of composite video or
luma signals, and the input bias circuits set the DC
level of chroma signals.
The reconstruction filter typically has ±1dB passband
flatness at 7MHz and 62dB attenuation at 27MHz. The
amplifiers have 2V/V gain and the outputs can be DCcoupled to a 75Ω load, which is the equivalent of two
video loads, or AC-coupled to a 150Ω load.
The MAX9586–MAX9589 operate from a 2.7V to 3.6V single supply and are specified over the -40°C to +125°C
automotive temperature range. The MAX9586–MAX9589
are offered in small SOT23 and µMAX
®
packages.
Applications
Set-Top Boxes
Televisions
Features
Single- (MAX9586), Dual- (MAX9587),
Triple- (MAX9588), and Quad- (MAX9589)
Channel Devices
7MHz, ±1dB Passband
62dB Attenuation at 27MHz
Fixed Gain of 2V/V
Low Power: 4.25mA per Channel
2.7V to 3.6V Single-Supply Operation
Small SOT23 and µMAX Packages
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
VDDto GND..............................................................-0.3V to +4V
IN_ to GND ...............................................................-0.3V to +4V
SHDN to GND...........................................................-0.3V to +4V
The MAX9586–MAX9589 filter and amplify the video
DAC output in applications such as set-top boxes and
televisions. These devices consist of input clamps,
input bias circuits, lowpass filters, and gain of 2V/V output amplifiers capable of driving a standard 150Ω
video load to ground.
Inputs
The input stages of the MAX9586–MAX9589 are either
sync-tip clamps or bias circuits. Sync-tip clamps accept
AC-coupled CVBS or luma video signals with sync pulses. The sync-tip voltage is internally set to 300mV. Bias
circuit inputs accept AC-coupled chroma, a subcarrier
modulated with the color information. The bias voltage
of the bias circuits is approximately 500mV.
Video Filter
The filter passband (±1dB) is typically 7MHz, which
makes the device suitable for standard-definition video
signals from all sources (e.g., broadcast and DVD).
Broadcast video signals are channel limited: NTSC signals have 4.2MHz bandwidth and PAL signals have
5MHz bandwidth. Video signals from a DVD player,
however, are not channel limited, so the bandwidth of
DVD video signals can approach the Nyquist limit of
6.75MHz. (Recommendation ITU-R BT.601-5 specifies
13.5MHz as the sampling rate for standard-definition
video). Therefore, the maximum bandwidth of the signal
is 6.75MHz. To ease the filtering requirements, most
modern video systems oversample by two times, clocking the video current DAC at 27MHz.
Outputs
The video output amplifiers can both source and sink
load current, allowing output loads to be DC- or ACcoupled. The amplifier output stage needs approximately 300mV of headroom from either supply rail. The
devices have an internal level-shift circuit that positions
the sync tip at approximately 300mV at the output.
If the supply voltage is greater than 3.135V (5% below
a 3.3V supply), each amplifier can drive two DC-coupled video loads to ground. If the supply is less than
3.135V, each amplifier can drive only one DC-coupled
or AC-coupled video load.
Shutdown (MAX9586)
The MAX9586 draws less than 1µA supply current
when SHDN is low. In shutdown mode, the amplifier
output becomes high impedance.
Applications Information
AC-Coupling the Outputs
The outputs can be AC-coupled since the output stage
can source and sink current as shown in Figure 1.
Coupling capacitors should be 220µF or greater to
keep the highpass filter, formed by the 150Ω equivalent
resistance of the video transmission line, to a corner
frequency of 4.8Hz or below. The frame rate of PAL
systems is 25Hz, and the frame rate of NTSC systems
is 30Hz. The corner frequency should be well below the
frame rate.
Power-Supply Bypassing and Ground
The MAX9586–MAX9589 operate from a single-supply
voltage down to 2.7V, allowing for low-power operation.
Bypass VDDto GND with a 0.1µF capacitor. Place all
external components as close as possible to the device.
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
6, 8, &10L, DFN THIN.EPS
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
21-0137
1
H
2
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
D
XXXX
XXXX
XXXX
PIN 1
INDEX AREA
SAMPLE
MARKING
7
A1
A
E
L
b
A
A2
L
e
C
L
e
EVEN TERMINAL
A A
(N/2 -1) x e)
b
N
1
C
L
e
ODD TERMINAL
SOLDER
MASK
COVERAGE
PIN 1
0.10x45∞
L1
L
6, 8, 10L UDFN.EPS
-DRAWING NOT TO SCALE-
PACKAGE OUTLINE,
6, 8, 10L uDFN, 2x2x0.80 mm
21-0164
1
A
2
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
COMMON DIMENSIONS
SYMBOLMIN.NOM.
A
A1
A2
D1.952.00
E
L
L1
0.700.75
0.150.200.25
0.0200.0250.035
1.952.00
0.300.40
0.10 REF.
MAX.
0.80
2.05
-
2.05
0.50
-DRAWING NOT TO SCALE-
PACKAGE VARIATIONS
PKG. CODENeb
6L622-10.65 BSC0.30±0.05
0.25±0.050.50 BSC8L822-1
0.20±0.030.40 BSC10L1022-1
(N/2 -1) x e
1.30 REF.
1.50 REF.
1.60 REF.
PACKAGE OUTLINE,
6, 8, 10L uDFN, 2x2x0.80 mm
21-0164
2
A
2
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
8
Ø0.50±0.1
0.6±0.1
0.6±0.1
1
D
TOP VIEW
A2
EH
A1
4X S
BOTTOM VIEW
A
8
1
DIM
A
A1
A2
b
c
D
e
E
H
L
α
S
INCHES
MIN
-
0.002
0.030
0.010
0.005
0.116
0.0256 BSC
0.116
0.188
0.016
0°
0.0207 BSC
MAX
0.043
0.006
0.037
0.014
0.007
0.120
0.120
0.198
0.026
6°
MILLIMETERS
MIN
0.050.15
0.250.36
0.130.18
2.953.05
2.953.05
4.78
0.41
MAX
-1.10
0.950.75
0.65 BSC
5.03
0.66
0.5250 BSC
6°0°
8LUMAXD.EPS
e
FRONT VIEW
c
b
L
SIDE VIEW
α
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
REV.DOCUMENT CONTROL NO.APPROVAL
21-0036
1
J
1
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
e
10
Ø0.50±0.1
0.6±0.1
1
0.6±0.1
4X S
H
TOP VIEW
D2
A2
b
D1
A
A1
α
FRONT VIEW
GAGE PLANE
BOTTOM VIEW
SIDE VIEW
10
DIM
1
E2
E1
L
L1
INCHES
MIN
-A
0.002
A1
A20.0300.0370.750.95
0.116
D1
D2
0.114
E1
0.116
0.114
E2
0.187
H
0.0157
L
L1
0.037 REF
0.007
b
e
0.0197 BSC
0.0035
c
0.0196 REF
S
α
0°0°6°
c
MAX
0.043
0.006
0.120
0.118
0.120
0.118
0.199
0.0275
0.0106
0.0078
6°
MILLIMETERS
MAX
MIN
-
1.10
0.05
0.15
2.95
3.05
2.89
3.00
2.95
3.05
2.89
3.00
4.75
5.05
0.40
0.70
0.940 REF
0.177
0.270
0.500 BSC
0.090
0.200
0.498 REF
10LUMAX.EPS
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 10L uMAX/uSOP
21-0061
REV.DOCUMENT CONTROL NO.APPROVAL
1
1
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
24
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages