MAX4079CUG+-MAX4079CUG+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX4079CUG+T ,Complete Audio/Video Backend SolutionApplications FILTERSatellite ReceiversLPBIASCOUTCIN +6dBFILTERCable Receivers NETWORKHome Theater S ..
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MAX407CPA ,1.2microA max, dual, single-supply op amp.ELECTRICAL CHARACTERISTICS (continued) (V+ = 2.5V, V- = -2.5V, TA = +25°C, unless otherwise note ..
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MAX771ESA ,5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC ControllersGeneral Description ________
MAX771ESA ,5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC ControllersApplicationsMAX770C/D 0°C to +70°C Dice* Palmtops/Handy-TerminalsMAX770EPA -40°C to +85°C 8 Plastic ..

MAX4079CUG+-MAX4079CUG+T
Complete Audio/Video Backend Solution
General Description
The MAX4079 filters and buffers video (NTSC/PAL/DVB)
and stereo audio signals from the MPEG decoder of a
cable/satellite receiver, VCR/DVD player, or a TV to an
external load. The MAX4079 has luma-chroma (Y-C)
and composite (CVBS) video inputs with one Y-C and
two CVBS outputs. All video inputs are AC-coupled with
internal DC biasing on the chroma input and active
clamps for the luma and composite.
The MAX4079 video reconstruction filters have a 6MHz
cutoff frequency and 50dB attenuation at 27MHz. The
filters are matched with flat group delay for standard-
definition video. The video gain is fixed at +6dB to drive
a 75Ωback-terminated load (150Ω) to unity gain. The
video outputs can be either DC- or AC-coupled and are
powered by a single +5V supply.
The MAX4079 audio amplifiers have differential inputs
for optimum performance, but can be used with single-
ended sources with external biasing. The audio chan-
nels have a fixed gain of +6dB and deliver 2.6VRMS
output with a differential input of ±1.85V. The audio
amplifiers operate from a +9V to +12V single supply
and feature an internal bias generator. An on-chip
mixer also provides a mono output, with +3dB gain,
derived from the left and right audio channels.
The MAX4079 is available in 24-pin TSSOP package,
and is fully specified over the 0°C to +70°C commercial
temperature range. The MAX4079 Evaluation Kit is
available to help speed designs.
Applications
Satellite Receivers
Cable Receivers
Home Theater Systems
DVD Players
AV Receivers
Televisions
FeaturesIntegrated Video Reconstruction Filters—6MHz
Lowpass Filter Supports NTSC, PAL, or DVB per
ITU-601Integrated Video and Audio AmplifiersIntegrated Video Input Clamps and BiasingMono Audio and CVBS Output to Drive External
Modulator+5V (Video) and +9V to +12V (Audio) Single-
Supply OperationDifferential/Single-Ended Audio Inputs24-Pin TSSOP Package
MAX4079
Complete Audio/Video
Backend Solution
Ordering Information
19-3780; Rev 1; 3/09
EVALUATION KIT
AVAILABLE
PARTTEMP RANGEPIN-PACKAGE
MAX4079CUG+0°C to +70°C24 TSSOP
+Denotes lead(Pb)-free package.
Functional Diagram
FILTER
CLAMP
BIAS
NETWORK
CLAMP
RINP
RINN
LINP
LINN
CIN
CVBSIN
YIN
COUT
CVBSOUT1
CVBSOUT2
ROUT1
ROUT2
MONO
LOUT1
LOUT2
GAUD
VVID
AUDVREXT
CBYPASS
+3dB
+6dB
+6dB
+6dB
+6dB
+6dB
+6dB
+6dB
+6dBYOUT
FILTER
FILTER
MAX4079
Pin Configuration appears at end of data sheet.
MAX4079
Complete Audio/Video
Backend Solution
ABSOLUTE MAXIMUM RATINGS
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.
GVID to GAUD.......................................................-0.1V to +0.1V
VVID to GVID............................................................-0.3V to +6V
AUDV to GAUD......................................................-0.3V to +14V
LINP, LINN, RINP, RINN, CBYPASS to GAUD.........-0.3V to +6V
LOUT1, LOUT2, ROUT1, ROUT2,
MONO to GAUD......-0.3V to lower of (+9V and AUDV + 0.3V)
YIN, CIN, CVBSIN, REXT to GVID.............-0.3V to (VVID + 0.3V)
YOUT, COUT, CVBSOUT1, CVBSOUT2 to
GVID.......................................................-0.3V to (VVID + 0.3V)
Video Output Short-Circuit Duration to GVID or
VVID........................................................................Continuous
Audio Output Short-Circuit Duration to GAUD or
AUDV.......................................................................Continuous
Continuous Power Dissipation (TA= +70°C)
24-Pin TSSOP (derate 12.2mW/°C above +70°C).....975.6mW
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s).................................+300°C
DC ELECTRICAL CHARACTERISTICS
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RLOAD_VID= 150Ωto GVID, RREXT= 10kΩ±1%, CCBYPASS= 1µF, TA= 0°C to
+70°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
SUPPLIES
Audio Supply Voltage RangeAUDV8.512.6V
Video Supply Voltage RangeVVID4.755.05.25V
Video Quiescent Supply CurrentICCVVVVID = 5.25V, no load, all video inputs
AC-coupled to ground60100mA
Audio Quiescent Supply CurrentICCAVAUDV = 12.6V, no load, audio inputs
biased at 2.5V815mA
Thermal ShutdownTSDRising die temperature+150°C
Thermal-Shutdown HysteresisTSD,HYS25°C
VIDEO
Voltage GainAV,VIDVIN = 1VP-P, all video inputs, no load5.866.2dB
Gain MatchingΔAV,VIDVIN = 1VP-P, all video inputs, no load-0.4+0.4dB
YIN, CVBSIN01.2Input Voltage SwingVIN,VIDCIN00.9VP-P
Clamp VoltageVCLMPCVBSOUT_ and YOUT, no signal, no load1.0V
Chroma BiasVBIASCOUT, no signal, no load2.1V
DroopD(Note 2)2%
REXT Reference VoltageVREXT0.851.001.15V
CVBSIN or YIN2.3MΩInput ResistanceRIN,VIDCIN10kΩ
Input Clamping CurrentICLMPCVBSIN or YIN input, VIN = 3.5V12.54µA
CVBSOUT_, YOUT2.4Output Voltage SwingVOUT,VIDCOUT1.8VP-P
Short-Circuit CurrentISC,VIDVideo output shorted to VVID or GVID50mA
YOUT/COUT48Power-Supply Rejection RatioPSRRVID4.75V ≤ VVVID ≤
5.25VCVBSOUT_48dB
MAX4079
Complete Audio/Video
Backend Solution
DC ELECTRICAL CHARACTERISTICS (continued)
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RLOAD_VID= 150Ωto GVID, RREXT= 10kΩ±1%, CCBYPASS= 1µF, TA= 0°C to
+70°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
AUDIO
Voltage GainAV,AUD1.414VP-P differential input5.866.2dB
Mono Voltage GainAV,MONO1.414VP-P differential input, LIN = RIN2.833.2dB
Gain Matching Between
ChannelsΔAV,AUD1.414VP-P differential input-0.4+0.4dB
Input Voltage RangeVIN,AUDInferred from CMRR test0.35.2V
Differential Input Voltage RangeVIN,AUD DIFInferred from output voltage swing-1.85+1.85V
Input CurrentIIN,AUD2µA
Output Voltage SwingVOUT,AUDInput overdriven, 10kΩ load to 4.15V7.4VP-P
Short-Circuit CurrentISC,AUD15mA
Power-Supply Rejection RatioPSRRAUD8.5V ≤ VAUDV ≤ 12.6V70dB
Common-Mode Rejection RatioCMRRAUD0.3V ≤ VCM ≤ 5.2V5060dB
AC ELECTRICAL CHARACTERISTICS
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RIN_VIDEO= 75Ωto GVID, CIN_VIDEO= 0.1µF, RLOAD_VID= 150Ωto GVID,
COUT_AUDIO= 10µF, RLOAD_AUD= 10kΩ±1% to GAUD, RREXT= 10kΩ, CCBYPASS= 1µF, TA= 0°C to +70°C, unless otherwise
noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
VIDEO
f = 4MHz-0.5+0.5
f = 7MHz3Filter AttenuationAVIDEO
CVBSOUT1 = CVBSOUT2 =
YOUT = COUT = 2VP-P;
RL = 150Ω to ground,
attenuation is referred to
100kHzf = 27MHz4050
Slew RateSRVOUT = 2VP-P30V/µs
Differential GainDGCVBSOUT_, YOUT, COUT, 5-step
modulated staircase0.5%
Differential PhaseDPCVBSOUT_, YOUT, COUT, 5-step
modulated staircase0.9degrees
YOUT/COUT48Power-Supply Rejection RatioPSRRVIDf = 100kHz, 0.5VP-PCVBSOUT_44dB
Peak Signal to RMS NoiseSNRVIDCVBSOUT_, YOUT, COUT, VIN = 1VP-P65dB
Group Delay DeviationGDCVBSOUT_, YOUT, COUT, fIN = 0.1MHz to
4.5MHz25ns
Output ImpedanceZOUT,VIDf = 3.58MHz0.5Ω
Capacitive LoadCL,VIDNo sustained oscillations35pF
Video CrosstalkXTALK,VIDf = 3.58MHz, 1VP-P input, between any two
active inputs-63
Audio/Video CrosstalkXTALK,VD/ADf = 15kHz, 1VP-P input, between any two
active audio or video inputs-76
MAX4079
Complete Audio/Video
Backend Solution
AC ELECTRICAL CHARACTERISTICS (continued)
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RIN_VIDEO= 75Ωto GVID, CIN_VIDEO= 0.1µF, RLOAD_VID= 150Ωto GVID,
COUT_AUDIO= 10µF, RLOAD_AUD= 10kΩ±1% to GAUD, RREXT= 10kΩ, CCBYPASS= 1µF, TA= 0°C to +70°C, unless otherwise
noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
AUDIO
LOUT_, ROUT_, fIN = 20Hz to 20kHz,
0.5VRMS input0.01
Gain FlatnessΔAAUD
MONO, fIN = 20Hz to 20kHz, 0.5VRMS
input0.01
Signal-to-Noise RatioSNRAUD
fIN = 1.0kHz, 0.5VRMS, CCIR weighing
highpass filter at 20Hz, lowpass filter at
20kHzdB
fIN = 1.0kHz, 0.5VRMS0.005Total Harmonic Distortion
Plus NoiseTHD+NfIN = 1.0kHz, 1VRMS0.003%
Output ImpedanceZO,AUDf = 1kHz0.2Ω
Power-Supply Rejection RatioPSRRAUD,ACf = 1kHz, VRIPPLE = 200mVP-P60dB
CrosstalkXTLK,AUDf = 1kHz, 0.5VRMS input70dB
Capacitive LoadCL,AUDNo sustained oscillations200pF
Note 1:All devices are 100% production tested at TA= +25°C. Specifications over temperature limits are guaranteed by design.
Note 2:Droop is defined as the percentage change in the DC level from the start to the end of a video line. Inferred from input
clamping current with a 0.1µF coupling capacitor.
CHROMA LARGE-SIGNAL BANDWIDTH
MAX4079 toc01
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
LUMA LARGE-SIGNAL BANDWIDTH
MAX4079 toc02
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
CVBSOUT_ LARGE-SIGNAL BANDWIDTH
MAX4079 toc03
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
Typical Operating Characteristics
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RIN_VIDEO= 75Ωto GVID, CIN_VIDEO= 0.1µF, RLOAD_VID= 150Ωto GVID,
COUT_AUDIO= 10µF, RLOAD_AUD= 10kΩto GAUD, RREXT= 10kΩ, CBYPASS= 1µF, TA= +25°C, unless otherwise noted.)
MAX4079
Complete Audio/Video
Backend Solution
VIDEO CROSSTALK (CVBSOUT_ TO YIN)
MAX4079 toc04
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
VIDEO CROSSTALK (CVBSOUT_ TO CIN)
MAX4079 toc05
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
VIDEO CROSSTALK (COUT TO CVBSIN)
MAX4079 toc06
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
VIDEO CROSSTALK (COUT TO YIN)
MAX4079 toc07
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
VIDEO CROSSTALK (YOUT TO CVBSIN)
MAX4079 toc08
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
VIDEO CROSSTALK (YOUT TO CIN)
MAX4079 toc09
FREQUENCY (MHz)
RESPONSE (dB)1
VIN = 1VP-P
CVBSOUT_ GROUP DELAY
MAX4079 toc10
FREQUENCY (MHz)
DELAY (ns)
CHROMA GROUP DELAY
MAX4079 toc11
FREQUENCY (MHz)
DELAY (ns)
YOUT GROUP DELAY
MAX4079 toc12
FREQUENCY (MHz)
DELAY (ns)
Typical Operating Characteristics (continued)
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RIN_VIDEO= 75Ωto GVID, CIN_VIDEO= 0.1µF, RLOAD_VID= 150Ωto GVID,
COUT_AUDIO= 10µF, RLOAD_AUD= 10kΩto GAUD, RREXT= 10kΩ, CBYPASS= 1µF, TA= +25°C, unless otherwise noted.)
MAX4079
Complete Audio/Video
Backend Solution
Typical Operating Characteristics (continued)
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RIN_VIDEO= 75Ωto GVID, CIN_VIDEO= 0.1µF, RLOAD_VID= 150Ωto GVID,
COUT_AUDIO= 10µF, RLOAD_AUD= 10kΩto GAUD, RREXT= 10kΩ, CBYPASS= 1µF, TA= +25°C, unless otherwise noted.)
DIFFERENTIAL GAIN
MAX4079 toc13
DIFFERENTIAL PHASE (deg)2456724567
DIFFERENTIAL GAIN (%)
DIFFERENTIAL PHASE
AUDIO LARGE-SIGNAL BANDWIDTH
MAX4079 toc14
FREQUENCY (kHz)
RESPONSE (dB)10.1
MONO CHANNEL
VIN = 0.5VRMS
AUDIO LARGE-SIGNAL BANDWIDTH
MAX4079 toc15
FREQUENCY (kHz)
RESPONSE (dB)10.1
RIGHT CHANNEL
VIN = 0.5VRMS
AUDIO LARGE-SIGNAL BANDWIDTH
MAX4079 toc16
FREQUENCY (kHz)
RESPONSE (dB)10.1
LEFT CHANNEL
VIN = 0.5VRMS
AUDIO CROSSTALK
MAX4079 toc17
RESPONSE (dB)10.1
LEFT TO RIGHT CHANNEL
RIGHT TO LEFT CHANNEL
VIN = 0.5VRMS
TOTAL HARMONIC DISTORTION
PLUS NOISE RATIO (LEFT CHANNEL)
MAX4079 toc18
THD+N (%)10.1
VIN = 1VRMS
VIN = 0.5VRMS
Typical Operating Characteristics (continued)
(VVVID= +5V, VAUDV= +12V, VGVID= VGAUD= 0V, RIN_VIDEO= 75Ωto GVID, CIN_VIDEO= 0.1µF, RLOAD_VID= 150Ωto GVID,
COUT_AUDIO= 10µF, RLOAD_AUD= 10kΩto GAUD, RREXT= 10kΩ, CBYPASS= 1µF, TA= +25°C, unless otherwise noted.)
MAX4079
Complete Audio/Video
Backend Solution
INPUT CLAMP CURRENT
vs. TEMPERATURE
MAX4079 toc22
TEMPERATURE (°C)
INPUT CLAMP CURRENT (
YIN
CVBSIN
VIN = 3.5V
INPUT CLAMP CURRENT
vs. INPUT VOLTAGE
MAX4079 toc23
INPUT VOLTAGE (V)
INPUT CLAMP CURRENT (
10,0005.0
CVBSIN
YIN
SINKING
SOURCING
OUTPUT BIAS VOLTAGE
vs. TEMPERATURE
MAX4079 toc24
OUTPUT BIAS VOLTAGE (V)
CVBSOUT_
YOUT
OUTPUT BIAS VOLTAGE
vs. TEMPERATURE
MAX4079 toc25
OUTPUT BIAS VOLTAGE (V)
COUT10203040506070
VIDEO SUPPLY CURRENT
vs. TEMPERATURE
MAX4079 toc20
TEMPERATURE (°C)
VIDEO SUPPLY CURRENT (mA)
AUDIO SUPPLY CURRENT
vs. TEMPERATURE
MAX4079 toc21
TEMPERATURE (°C)
AUDIO SUPPLY CURRENT (mA)
TOTAL HARMONIC DISTORTION
PLUS NOISE RATIO (RIGHT CHANNEL)
MAX4079 toc19
FREQUENCY (kHz)
THD+N (%)10.1
VIN = 1VRMS
VIN = 0.5VRMS
MAX4079
Detailed Description
The MAX4079 filters and buffers video (NTSC/PAL/DVB)
and stereo audio signals from the MPEG decoder of a
cable/satellite receiver, VCR/DVD player, or a TV to an
external load. The MAX4079 has luma-chroma (Y-C)
and composite (CVBS) video inputs with one Y-C and
two CVBS outputs. All video inputs are AC-coupled with
internal DC biasing on the chroma input and active
clamps for the luma and composite.
The MAX4079 video reconstruction filters have a 6MHz
cutoff frequency and 50dB attenuation at 27MHz. The
filters are matched, with flat group delay for standard-
definition video. The video gain is fixed at +6dB to drive
a 75Ωback-terminated load (150Ω) to unity gain. The
video outputs can be either DC- or AC-coupled and are
powered by a single +5V supply.
The MAX4079 audio amplifiers have differential inputs
for optimum performance, but can be used with single-
ended sources with external biasing. The audio chan-
nels have a fixed gain of +6dB and deliver 2.6VRMS
output with a differential input of ±1.85V. The audio
amplifiers operate from a +9V to +12V single supply
and feature an internal bias generator. An on-chip
mixer also provides a mono output, with +3dB gain,
derived from the left and right audio channels.
Video
The video section of the MAX4079 implements DC
restore/biasing, amplification, and reconstruction filter-
ing for the Y-C and CVBS input signals. All of the video
inputs are AC-coupled. DC restore is performed using
a sync tip clamp for both luma and composite video
channels. The chroma DC level input is biased at the
midlevel of the signal.
All video channels have a fixed gain of +6dB. The DC
level at the video outputs is controlled so that coupling
capacitors are not required.
All composite and luma video outputs are capable of
driving 2.4VP-P, and the chroma output is capable of
driving 1.8VP-Pinto 150Ωresistive load to ground. Up
to 35pF of load capacitance can be tolerated at each
video output without stability or slew-rate issues.
Complete Audio/Video
Backend Solution
Pin Description
PINNAMEFUNCTIONREXTExternal Filter Resistor. Bypass with a 10kΩ ±1% resistor and a 0.1µF capacitor to GVID.
2, 24VVIDVideo Power-Supply InputCVBSINComposite Video Input
4, 21GVIDVideo GroundYINLuma InputCBYPASSAudio LDO Regulator Bypass Capacitor. Bypass with a1µF capacitor to GAUD.CINChroma InputAUDVAudio Power-Supply InputLINPLeft-Channel Audio Positive InputLINNLeft-Channel Audio Negative InputRINNRight-Channel Audio Negative InputRINPRight-Channel Audio Positive InputROUT2Right-Channel Audio Output 2ROUT1Right-Channel Audio Output 1GAUDAudio GroundMONOMono Audio OutputLOUT2Left-Channel Audio Output 2LOUT1Left-Channel Audio Output 1COUTChroma Video OutputYOUTLuma Video OutputCVBSOUT1Composite Video Output 1CVBSOUT2Composite Video Output 2

Partno	Mfg	Dc	Qty	Available	Descript
MAX4079CUG+ \|MAX4079CUG	MAXIM	N/a	30	avai	Complete Audio/Video Backend Solution
MAX4079CUG+T	MAXIM	N/a	1392	avai	Complete Audio/Video Backend Solution