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MAX9586AZK+T ,Single, Dual, Triple, and Quad Standard-Definition Video Filter Amplifiers with AC-Coupled Input BuffersBlock Diagrams continued at end of data sheet.____ Maxim Integrated Products 1For pricing, delivery ..
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MAX9586-MAX9586AZK+T
Single, Dual, Triple, and Quad Standard-Definition Video Filter Amplifiers with AC-Coupled Input Buffers
General Description
The MAX9586–MAX9589 are small, low-power, multi-
channel video amplifiers with integrated reconstruction
filters and input clamps. Specially suited for standard-
definition 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-cou-
pled 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 8.5MHz and 55dB attenuation at 27MHz. The
amplifiers have 2V/V gain and the outputs can be DC-
coupled 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 sin-
gle 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
FeaturesSingle- (MAX9586), Dual- (MAX9587),
Triple- (MAX9588), and Quad- (MAX9589)
Channel Devices8.5MHz, ±1dB Passband55dB Attenuation at 27MHzFixed Gain of 2V/VLow Power: 4.25mA per Channel2.7V to 3.6V Single-Supply OperationSmall SOT23 and µMAX Packages
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
INAOUTA
LPFAV = 2V/V
MAX9588UNKNOWN
BIAS300mV
CLAMP
INBOUTB
LPFAV = 2V/VCLAMP
INCOUTC
LPFAV = 2V/VBIAS
Block Diagrams
19-0744; Rev 6; 2/11
EVALUATION KIT
AVAILABLE
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Ordering Information
Note:All devices are specified over the -40°C to +125°C operat-
ing temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
PARTPIN-PACKAGECHANNELS
MAX9586AZK+T5 Thin SOT231
MAX9587AZT+T6 Thin SOT232
MAX9588AUA+T8 µMAX3
MAX9589AUB+T10 µMAX4
Block Diagrams continued at end of data sheet.
Pin Configurations and Selector Guide located at end of
data sheet.
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definitionideo Filter Amplifiers with AC-Coupled Input Buffers
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = 3.3V, VGND= 0V, VRL= no load, TA= TMINto TMAX, 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
SHDNto GND...........................................................-0.3V to +4V
OUT_ Short Circuit Duration to VDD, GND.................Continuous
Continuous Input Current
IN_, SHDN....................................................................±20mA
Continuous Power Dissipation (TA= +70°C)
5-Pin Thin SOT23 (derate 9.1mW/°C above +70°C)....727mW
6-Pin Thin SOT23 (derate 9.1mW/°C above +70°C)....727mW
8-Pin µMAX (derate 4.5mW/°C above +70°C).............362mW
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
Operating Temperature Range.........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow).......................................+260°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply Voltage RangeVDDGuaranteed by PSRR2.73.6V
Supply CurrentIDDPer channel4.258mA
Sync-Tip Clamp LevelVCLPSync-tip clamp0.240.41V
VDD = 2.7V, sync-tip clamp
input1.05
VDD = 2.7V, bias input1.05
VDD = 3V, sync-tip clamp input1.2
Input Voltage RangeVINGuaranteed by DC
voltage gain
VDD = 3V, bias input1.2
VP-P
Sync Crush
Sync-tip clamp, percentage reduction in sync pulse
(0.3VP-P), guaranteed by input clamping current
measurement, measured at input
Input Clamping CurrentSync-tip clamp12µA
Maximum Input Source
Resistance300Ω
Bias VoltageVBIASBias circuit0.400.500.62V
Input ResistanceBias circuit11kΩ
VDD = 2.7V, VIN = VCLP to
(VCLP + 1.05V)1.952.002.04
VDD = 3V, VIN = VCLP to
(VCLP + 1.2V)1.952.002.04
VDD = 2.7V, VIN = VBIAS
±0.525V1.952.002.04
DC Voltage Gain (Note 2)AVRL = 150Ω to GND
VDD = 3V, VIN = VBIAS
±0.600V1.952.002.04
V/V
DC Gain MatchingGuaranteed by DC voltage gain-20+2%
Sync-tip clamp0.20.30.4
Output Level
Measured at VOUT,
IN_ = 0.1µF to GND,
RL = 150Ω to GNDBias circuit1.3
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.3V, VGND= 0V, VRL= no load, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Measured at output, VDD = 2.7V,
VIN = VCLP to (VCLP + 1.05V),
RL = 150Ω to -0.2V
Measured at output, VDD = 2.7V,
VIN = VCLP to (VCLP + 1.05V),
RL = 150Ω to VDD/2
Measured at output, VDD = 3V,
VIN = VCLP to (VCLP + 1.2V),
RL = 150Ω to -0.2V
Measured at output, VDD = 3V,
VIN = VCLP to (VCLP + 1.2V),
RL = 150Ω to VDD/2
Sync-tip clamp
Measured at output, VDD =
3.135V, VIN = VCLP to (VCLP +
1.05V), RL = 75Ω to -0.2V
Measured at output, VDD = 2.7V,
VIN = VBIAS ±0.525V,
RL = 150Ω to -0.2V
Measured at output, VDD = 2.7V,
VIN = VBIAS ±0.500V,
RL = 150Ω to VDD/2
Measured at output, VDD = 3V,
VIN = VBIAS ±0.600V,
RL = 150Ω to -0.2V
Measured at output, VDD = 3V,
VIN = VBIAS ±0.500V,
RL = 150Ω to VDD/2
Output-Voltage Swing
Bias Circuit
Measured at output, VDD =
3.135V, VIN = VBIAS ±0.525V,
RL = 75Ω to -0.2V
VP-P
Short to GND (sourcing)140Output Short-Circuit
CurrentShort to VDD (sinking)70mA
Output ResistanceROUTVOUT = 1.5V, -10mA ≤ ILOAD ≤ +10mA0.2Ω
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definitionideo Filter Amplifiers with AC-Coupled Input Buffers
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.3V, VGND= 0V, VRL= no load, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
2.7V ≤ VDD ≤ 3.6V48Power-Supply Rejection
Ratiof = 1MHz, 100mVP-P29dB
±1dB passband flatness8.5MHz
f = 5.5MHz-0.15
f = 9.5MHz-3
Standard-Definition
Reconstruction Filter
VOUT_ = 2VP-P,
reference frequency is
100kHzf = 27MHz-55
Differential GainDG
5-step modulated staircase of 129mV step size and
286mV peak-to-peak subcarrier amplitude,
f = 4.43MHz
0.1%
Differential PhaseDP
5-step modulated staircase of 129mV step size and
286mV peak-to-peak subcarrier amplitude,
f = 4.43MHz
0.4D eg r ees
2T Pulse-to-Bar K Rating2T = 200ns, bar time is 18µs; the beginning 2.5%
and the ending 2.5% of the bar time are ignored0.6K%
2T Pulse Response2T = 200ns0.2K%
2T Bar Response2T = 200ns, bar time is 18µs; the beginning 2.5%
and the ending 2.5% of the bar time are ignored0.2K%
Nonlinearity5-step staircase0%
Group Delay Distortion100kHz ≤ f ≤ 5.5MHz, outputs are 2VP-P9nseak S i g nal to RM S N oi se100kHz ≤ f ≤ 5.5MHz71dB
Output Impedancef = 5.5MHz4.8Ω
All-Hostile Crosstalkf = 4.43MHz-64dB
Note 1:All devices are 100% production tested at TA= +25°C. Specifications over temperature limits are guaranteed by design.
Note 2:Voltage gain (AV) is a two-point measurement in which the output-voltage swing is divided by the input-voltage swing.
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
Typical Operating Characteristics
(VDD= VSHDN= +3.3V, video outputs have RL = 150Ωconnected to GND, TA= +25°C, unless otherwise noted.)
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
MAX9586 toc07
QUIESCENT SUPPLY CURRENT (mA)
VOLTAGE GAIN
vs. TEMPERATURE
MAX9586 toc08
VOLTAGE GAIN (V/V)
SMALL-SIGNAL GAIN
vs. FREQUENCY
MAX9586 toc01
FREQUENCY (Hz)
GAIN (dB)
10M1M
100k100M
VOUT = 100mVP-P
SMALL-SIGNAL GAIN FLATNESS
vs. FREQUENCY
MAX9856 toc02
FREQUENCY (Hz)
GAIN (dB)
10M100M
VOUT = 100mVP-P
LARGE-SIGNAL GAIN
vs. FREQUENCY
MAX9586 toc03
FREQUENCY (Hz)
GAIN (dB)
10M1M
100k100M
VOUT = 2VP-P
LARGE-SIGNAL GAIN FLATNESS
vs. FREQUENCY
MAX9856 toc04
FREQUENCY (Hz)
GAIN (dB)
10M100M
VOUT = 2VP-P
GROUP DELAY
vs. FREQUENCY
MAX9586 toc05
FREQUENCY (Hz)
DELAY (ns)
10M1M
100k100M
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9586 toc06
FREQUENCY (Hz)
PSRR (dB)
10M1M
10k100k100M
DIFFERENTIAL GAIN AND PHASE
MAX9586 toc09
DIFFERENTIAL GAIN (%)5432
DIFFERENTIAL PHASE (deg)
f = 4.43MHz
f = 4.43MHz
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definitionideo Filter Amplifiers with AC-Coupled Input Buffers
Typical Operating Characteristics (continued)
(VDD= VSHDN= +3.3V, video outputs have RL = 150Ωconnected to GND, TA= +25°C, unless otherwise noted.)
2T RESPONSE
MAX9586 toc10
100ns/div
OUT_
400mV/div
IN_
200mV/div
12.5T RESPONSE
MAX9586 toc11
400ns/div
OUT_
400mV/div
IN_
200mV/div
NTC-7 VIDEO TEST SIGNAL
MAX9586 toc12
10μs/div
OUT_
1V/div
IN_
500mV/div
PAL MULTIBURST RESPONSE
MAX9586 toc13
10μs/div
OUT_
1V/div
IN_
500mV/div
PAL COLOR BARS
MAX9586 toc14
10μs/div
OUT_
1V/div
IN_
500mV/div
FIELD SQUARE-WAVE RESPONSE
MAX9586 toc15
2ms/div
OUT_
1V/div
IN_
500mV/div
INPUT-TO-INPUT CROSSTALK
vs. FREQUENCY
MAX9586 toc16
FREQUENCY (Hz)
GAIN (dB)
10M1M
100k100M
OUTPUT-TO-OUTPUT CROSSTALK
vs. FREQUENCY
MAX9586 toc17
FREQUENCY (Hz)
GAIN (dB)
10M1M
100k100M
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX9586 toc18
FREQUENCY (Hz)
OUTPUT IMPEDANCE (
100k10M
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definition
Video Filter Amplifiers with AC-Coupled Input Buffers
Pin Description
PIN
MAX9586MAX9587MAX9588MAX9589
5 SOT236 SOT238 µMAX10 µMAX
NAMEFUNCTION——SHDNActive-Low Shutdown Input. Connect to GND to shut down.245GNDGround———INVideo Input311INAVideo Input A122INBVideo Input B—33INCVideo Input C——4INDVideo Input D———OUTVideo Output479OUTAVideo Output A668OUTBVideo Output B—57OUTCVideo Output C——6OUTDVideo Output D810VDDPositive Power Supply. Bypass to GND with a 0.1µF capacitor.
SHDN+3.3V
0.1μF
0.1μF
0.1μF
75Ω
OUTCVBS
GND
VDD
LPFAV = 2V/V
MAX9586
CLAMP
VIDEO
SWITCH
LPFAV = 2V/V
MAX9587
CLAMP
LPFAV = 2V/VBIAS
VIDEO
DECODER
3.3V
75Ω
INA0.1μF
0.1μF
0.1μF
75Ω
OUTALUMA
GND
VDD
VIDEO
DECODERVIDEO
SWITCH
3.3V
75Ω
INB0.1μF0.1μF
75Ω
OUTBCHROMA
75Ω
Figure 1. Typical Application Circuits for the MAX9586/MAX9587 (Anti-Alias Filter)
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definitionideo Filter Amplifiers with AC-Coupled Input Buffers
LPFAV = 2V/V
MAX9588
CLAMP
LPFAV = 2V/VCLAMP
INA
0.1μF
VDD0.1μF
75ΩOUTACVBS
GND
VDD
MPEG
DECODER
3.3V
CVBS
INB
0.1μF
LUMA
DAC
VDD
DAC
75ΩOUTBY
LPFAV = 2V/VBIASINC
0.1μF
CHROMA
VDD
DAC
75ΩOUTCC
LPFAV = 2V/V
MAX9589
CLAMP
LPFAV = 2V/VCLAMP
INA0.1μF
VDD0.1μF
75ΩOUTACVBS
GND
VDD
MPEG
DECODER
3.3V
CVBS1
INB0.1μF
DAC
75ΩOUTBCVBS2
LPFAV = 2V/VCLAMPINC
0.1μF
LUMA
VDD
DAC
75ΩOUTCY
LPFAV = 2V/VBIASIND
0.1μF
CHROMA
VDD
DAC
75ΩOUTDC
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definitionideo Filter Amplifiers with AC-Coupled Input Buffers
Detailed Description
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 out-
put 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 puls-
es. 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 8.5MHz, 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 sig-
nals 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, clock-
ing 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 AC-
coupled. The amplifier output stage needs approxi-
mately 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-cou-
pled 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 SHDNis 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 4.
Coupling capacitors should be 220µF or greater to
keep the highpass filter, formed by the 150Ωequivalent
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
CVBS IN
LOOPBACK
OUT
37.5Ω
75Ω
0.1µF
VINDOUT
37.5Ω
MAX9526
0.1µF
OUT
MAX9586
Figure 3. Loopback Circuit Diagram
MAX9586–MAX9589
Single, Dual, Triple, and Quad Standard-Definitionideo Filter Amplifiers with AC-Coupled Input Buffers
LPFAV = 2V/V
MAX9589
CLAMP
LPFAV = 2V/VCLAMP
INA
0.1µF
VDD0.1µF
75ΩOUTA220µFCVBS
GND
VDD
MPEG
DECODER
3.3V
CVBS1
INB
0.1µF
DAC
75ΩOUTBCVBS2
LPFAV = 2V/VCLAMPINC
0.1µF
LUMA
VDD
DAC
75ΩOUTCY
LPFAV = 2V/VBIASIND0.1µFCHROMA
VDD
DAC
75ΩOUTDC
220µF
220µF
220µF
Figure 4. AC-Coupled Outputs

Partno	Mfg	Dc	Qty	Available	Descript
MAX9586	MAXIM	N/a	2500	avai	Single, Dual, Triple, and Quad Standard-Definition Video Filter Amplifiers with AC-Coupled Input Buffers
MAX9586AZK+T \|MAX9586AZKT	MAXIM	N/a	15000	avai	Single, Dual, Triple, and Quad Standard-Definition Video Filter Amplifiers with AC-Coupled Input Buffers