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19-4103; Rev 1; 12/08
KIT ATION EVALU ILABLE AVA
Component Analog TV Sync Separator
General Description Features
Stand-Alone Operation--No Timing Element Required Covers All Major Standards: SDTV, EDTV, and HDTV Identification of Input Standard Loss of Video Signal Detection Coast and Clamp Pulse Outputs High-Impedance Bridging Video Input No Distortion to Video Signal Low Quiescent Current (< 10mA) 2.7V to 5.5V Single Supply
MAX9568
The MAX9568 video sync separator extracts sync timing information from standard-definition (SDTV), extendeddefinition (EDTV), and high-definition (HDTV) component video signals. This device is designed for reliable operation in the presence of copy protection schemes such as MACROVISION(R). The MAX9568 is a stand-alone device and requires no external components for timing or biasing. High-impedance video inputs prevent loading of the input signal and eliminate the need for buffering. The MAX9568 is available in a 16-pin QSOP package. The device is specified over the -40C to +85C temperature range.
Applications
Video Digitizers Instrumentation PDP Television LCD Panels Frame Grabbers Video Recorders
Ordering Information
PART MAX9568EEE+T PIN-PACKAGE 16 QSOP TOP MARK --
Note: All devices are specified over the -40C to +85C operating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel.
MACROVISION is a registered trademark of Macrovision Corp.
Functional Diagram
VCC 0.1F
CVIDIN 300k 0.35 VCC
INPUT BUFFER
SYNC SLICER OUTPUT PULSE GENERATOR VTHRESH
CSYNCOUT HSYNCOUT CLAMP VSYNCOUT ODD/EVEN LOS COAST
MAX9568
GND
VIDEO STANDARD DECODE
FR HL SDTV HDTV
________________________________________________________________ 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.
Component Analog TV Sync Separator MAX9568
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to GND) .................................-0.3V to +6V All Other Pins to GND ................................-0.3V to (VCC + 0.3V) Continuous Power Dissipation (TA = +70C) 16-Pin QSOP (derate 8.3mW/C above +70C) ...........667mW Operating Temperature Range ..........................-40C to +85C Junction Temperature .....................................................+150C Storage Temperature Range ............................-65C to +150C Lead Temperature (soldering, 10s) ................................+300C
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
(VCC = +5V, VGND = 0V, TA = TMIN to TMAX. Typical values are at TA = +25C.) (Note 1)
PARAMETER Supply Voltage Range Supply Current Input-Voltage Range (Note 2) SYMBOL VCC ICC VIN VSLICE_BI VSLICE_TRI RIN VB 0.31 x VCC VCC = 5V VCC = 2.7V VCC = 5V VCC = 2.7V 8 HSYNCOUT output jitter with respect to sync input for 720p video signal CL = 15pF 500 5 4.6 2.1 0.4 0.5 CONDITIONS Inferred from horizontal pulse delay With 720p video standard input Peak-to-peak video amplitude Absolute range Bilevel syncs Trilevel syncs 0.5 0.2 60 110 95 145 300 0.39 x VCC MIN 2.7 8.5 TYP MAX 5.5 13.5 2.0 VCC - 0.2 130 180 V UNITS V mA
DC ELECTRICAL CHARACTERISTICS
Slice Level Input Resistance Input DC Bias Voltage DIGITAL LOGIC OUTPUTS Output-Voltage High Output-Voltage Low
mV k V
VOH VOL
IOUT = 1.6mA IOUT = 1.6mA
V V
AC ELECTRICAL CHARACTERISTICS Input Capacitance Jitter Output Logic Rise and Fall Times CIP tJITTER tR, tF pF ps ns
2
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Component Analog TV Sync Separator
TIMING CHARACTERISTICS
(VCC = +5V, VGND = 0V, TA = TMIN to TMAX. Typical values are at TA = +25C) (Note 1)
PARAMETER 525i (Figures 1a and 2a) Horizontal Pulse Delay Horizontal Pulse Width Clamp Pulse Delay Clamp Pulse Width Composite Sync Output Leading Edge Delay Composite Sync Output Trailing Edge Delay Vertical Pulse Delay Vertical Pulse Width 625i (Figures 1b and 2a) Horizontal Pulse Delay Horizontal Pulse Width Clamp Pulse Delay Clamp Pulse Width Composite Sync Output Leading Edge Delay Composite Sync Output Trailing Edge Delay Vertical Pulse Delay Vertical Pulse Width 525p/480p (Figures 1c and 2a) Horizontal Pulse Delay Horizontal Pulse Width Clamp Pulse Delay Clamp Pulse Width Composite Sync Output Leading Edge Delay Composite Sync Output Trailing Edge Delay Vertical Pulse Delay Vertical Pulse Width 625p/576p (Figures 1d and 2a) Horizontal Pulse Delay Horizontal Pulse Width Clamp Pulse Delay tHP tHPW tCP 20 2.4 290 ns s ns tHP tHPW tCP tCPW tLE tTE tVP tVPW 20 2.4 290 1.6 15 15 20 190 ns s ns s ns ns ns ns tHP tHPW tCP tCPW tLE tTE tVP tVPW 20 4.8 570 3.7 15 15 20 160/192 ns s ns s ns ns ns ns tHP tHPW tCP tCPW tLE tTE tVP tVPW Odd/even field 20 4.8 570 3.7 15 15 20 190/122 ns s ns s ns ns ns ns SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX9568
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Component Analog TV Sync Separator MAX9568
TIMING CHARACTERISTICS (continued)
(VCC = +5V, VGND = 0V, TA = TMIN to TMAX. Typical values are at TA = +25C) (Note 1)
PARAMETER Clamp Pulse Width Composite Sync Output Leading Edge Delay Composite Sync Output Trailing Edge Delay Vertical Pulse Delay Vertical Pulse Width 720p (Figures 1e and 2b) Horizontal Pulse Delay Horizontal Pulse Width Clamp Pulse Delay Clamp Pulse Width Composite Sync Output Leading Edge Delay Composite Sync Output Trailing Edge Delay Vertical Pulse Delay Vertical Pulse Width 1080i (Figures 1f and 2b) Horizontal Pulse Delay Horizontal Pulse Width Clamp Pulse Delay Clamp Pulse Width Composite Sync Output Leading Edge Delay Composite Sync Output Trailing Edge Delay Vertical Pulse Delay Vertical Pulse Width tHP tHPW tCP tCPW tLE tTE tVP tVPW 20 585 1.1 1.2 15 15 25 160/192 ns s ns s ns ns ns ns tHP tHPW tCP tCPW tLE tTE tVP tVPW 20 540 1.0 1.25 15 15 25 110 ns s ns s ns ns ns ns SYMBOL tCPW tLE tTE tVP tVPW CONDITIONS MIN TYP 1.6 15 15 20 192 MAX UNITS s ns ns ns ns
Note 1: All devices are production tested at TA = +25C. Specifications over temperature are guaranteed by design. Note 2: Input voltage range is guaranteed by the horizontal pulse delay.
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ODD FIELD
VIDEO/COMPOSITE SYNC INPUT 520 12... 21... 22... 521 522 523 524 525 1 2 3 4 5 6 7 8 9 10 11 19 20
519
COMPOSITE SYNC OUTPUT
HORIZONTAL PULSE
CLAMP PULSE
VERTICAL PULSE
ODD/EVEN
Figure1a. Standard Interlaced 525i (NTSC) Component Video
257 265 258 264 268 269 266 267 259 260 261 262 263 270 271 272 273 274... 282 283 284 285...
COAST
EVEN FIELD
VIDEO/COMPOSITE SYNC INPUT
256
COMPOSITE SYNC OUTPUT
HORIZONTAL PULSE
CLAMP PULSE
VERTICAL PULSE
ODD/EVEN
COAST
MAX9568
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Timing Diagrams
525i
Component Analog TV Sync Separator
5
MAX9568
Component Analog TV Sync Separator
6
617 618 619 620 261 622 623 624 625 1 2 3 4 5 6 7 8 18 19 20... 23 24... 304 305 306 307 308 309 310 311 314 312 313 315 316 317 318 319 320... 330 331 332... 336 337...
FIELD 2
VIDEO/COMPOSITE SYNC INPUT
616
COMPOSITE SYNC OUTPUT
HORIZONTAL PULSE
CLAMP PULSE
VERTICAL PULSE
ODD/EVEN
Figure1b. Standard Interlaced 625i (PAL) Component Video
COAST
FIELD 1
VIDEO/COMPOSITE SYNC INPUT
303
COMPOSITE SYNC OUTPUT
HORIZONTAL PULSE
CLAMP PULSE
VERTICAL PULSE
ODD/EVEN
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COAST
Timing Diagrams (continued)
625i
Component Analog TV Sync Separator MAX9568
Timing Diagrams (continued)
VIDEO/COMPOSITE SYNC INPUT 522 COMPOSITE SYNC OUTPUT HORIZONTAL PULSE 523 524 525 1 2... 5 6 7 8 9 10 11 12 13 14 15... 20 21 22... 42 43 44... 522
CLAMP PULSE
VERTICAL PULSE
COAST
525p (480p)
Figure1c. Extended Standard Progressive 525p (480p) Component Video
VIDEO/COMPOSITE SYNC INPUT 616 COMPOSITE SYNC OUTPUT HORIZONTAL PULSE 617 618... 619 620... 623 624 625 1 2 3 4 5 6 7 8 9... 18 19 20... 44 45 46... 616
CLAMP PULSE
VERTICAL PULSE
COAST
625p (576p)
Figure1d. Extended Standard Progressive 625p (576p) Component Video
VIDEO/COMPOSITE SYNC INPUT 742 COMPOSITE SYNC OUTPUT HORIZONTAL PULSE 743 744 745 746 747 748 749 750 1 2 3 4 5 6 7 8... 20 21 22... 25 26 27... 742
CLAMP PULSE
VERTICAL PULSE
COAST
720p
Figure1e. High-Definition Progressive 720p Composite Video
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MAX9568
Component Analog TV Sync Separator
8
1119 1120 1121 1122 1123 1124 1125 1 2 3 4 5 6 7 8 9... 18 19 20 21 22... 554 556 557 558 559 560 561 562 563 264 565 566 567 568 569 570 571... 581 582 583 584 585... 1117
ODD FIELD
VIDEO/COMPOSITE SYNC INPUT
1117
1118
COMPOSITE SYNC OUTPUT
HORIZONTAL PULSE
CLAMP PULSE
VERTICAL PULSE
ODD/EVEN
Figure1f. High-Definition Progressive 1080i Composite Video
COAST
EVEN FIELD
VIDEO/COMPOSITE SYNC INPUT
554
555
COMPOSITE SYNC OUTPUT
HORIZONTAL PULSE
CLAMP PULSE
VERTICAL PULSE
ODD/EVEN
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COAST
Timing Diagrams (continued)
1080i 60Hz
Component Analog TV Sync Separator MAX9568
Timing Diagrams (continued)
VIDEO/COMPOSITE SYNC INPUT
VSLICE_BI
VIDEO/COMPOSITE SYNC INPUT VSLICE_TRI
COMPOSITE SYNC OUTPUT
tLE tTE COMPOSITE SYNC OUTPUT tLE
tTE
HORIZONTAL PULSE
tHP tHPW HORIZONTAL PULSE tCP tCPW CLAMP PULSE tCP tCPW tHP tHPW
CLAMP PULSE
Figure2a. 525/625i 525/625p (480p/576p) Horizontal Timing
Figure2b. 720p/1080i Horizontal Timing
Typical Operating Characteristics
(VCC = +5V, VGND = 0V, TA = +25C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX9568 toc01
SUPPLY CURRENT vs. TEMPERATURE
VIDEO INPUT: 720p 9 SUPPLY CURRENT (mA) VCC = +5.0V 8 7 6 5 4 VCC = +2.7V
MAX9568 toc02
HORIZONTAL PULSE DELAY vs. TEMPERATURE
45 HORIZONTAL PULSE DELAY (ns) 40 35 30 25 20 15 10 5 720p 525i
MAX9568 toc03
10 9 SUPPLY CURRENT (mA) 8 7 NO INPUT 6 5 4 2.5 3.0 3.5 4.0 4.5
10
50
VIDEO INPUT: 720p
0 -40 -15 10 35 60 85 -40 -15 10 35 60 85 TEMPERATURE (C) TEMPERATURE (C)
5.0
SUPPLY VOLTAGE (V)
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Component Analog TV Sync Separator MAX9568
Typical Operating Characteristics (continued)
(VCC = +5V, VGND = 0V, TA = +25C, unless otherwise noted.)
HORIZONTAL PULSE WIDTH vs. TEMPERATURE
MAX9568 toc04
CLAMP PULSE DELAY vs. TEMPERATURE
1.4 CLAMP PULSE DELAY (ns) 1.2 1.0 0.8 0.6 0.4 0.2 0 720p 525i
MAX9568 toc05
CLAMP PULSE WIDTH vs. TEMPERATURE
3.5 CLAMP PULSE WIDTH (s) 3.0 2.5 2.0 1.5 1.0 0.5 0 720p
MAX9568 toc06
6 HORIZONTAL PULSE WIDTH (s) 5 525i 4 3 2 1 0 -40 -15 10 35 60 720p
1.6
4.0 525i
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (C)
TEMPERATURE (C)
TEMPERATURE (C)
HORIZONTAL PULSE JITTER (576p)
20ns/div
MAX9568 toc07
HORIZONTAL PULSE JITTER (720p)
20ns/div
MAX9568 toc08
1ns/div
1ns/div
10
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Component Analog TV Sync Separator
Pin Description
PIN 1 2 3 4 5, 8 6 7 9 10 11 12 13 14 15 16 NAME CSYNCOUT CVIDIN VSYNCOUT COAST GND FR HL N.C. SDTV HDTV CLAMP LOS ODD/EVEN HSYNCOUT VCC Composite Sync Output. Active low. Component Video Input Vertical Timing Pulse Output. Active low. Coast Output. Active low. Ground Frame Rate Output. FRAME high indicates 60Hz and low indicates 50Hz. See Table 1. Standard Output 3. HL high indicates 625i, 625p (576p), and 1080i standards. HL low indicates 525i, 525p (480p), and 720p standards. See Table 1. No Connection. Not internally connected. Standard Output 1. SDTV high indicates standard-definition television. SDTV low indicates extended definition or high-definition television. See Table 1. Standard Output 2. HDTV high indicates high-definition television. HDTV low indicates standarddefinition or extended definition television. See Table 1. Clamp Pulse Output. Active low during the back porch portion of component video. Loss-of-Sync Output. Indicates the presence of a video input signal. Active low. Odd and Even Line Field Output. Indicates odd or even field for interlaced video standards. ODD/EVEN is logic-high for even fields and logic-low for odd fields. Horizontal Timing Pulse Output. Active low. Positive Supply. Bypass VCC to GND with a 0.1F capacitor. FUNCTION
MAX9568
Table 1. Video Standard Output Decoding
TV STANDARD 525i 625i 525p/480p 625p/576p 720p 1080i/60 1080i/50 CLASSIFICATION SDTV SDTV EDTV EDTV HDTV HDTV HDTV OUTPUT PINS FR High Low High Low High High Low SDTV* High High Low Low Low Low Low HDTV* Low Low Low Low High High High HL Low High Low High Low High High
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Component Analog TV Sync Separator MAX9568
Detailed Description
The MAX9568 sync separator extracts sync timing information from SDTV, EDTV, and HDTV component video signals. The MAX9568 is a stand-alone device, and requires no external components to set timing or bias voltage. The MAX9568 has high input impedance, eliminating the need for a low-impedance video source at the input. The MAX9568 provides composite sync, vertical sync, and horizontal sync outputs. The MAX9568 provides automatic SDTV, EDTV, and HDTV detection logic outputs to indicate the type of TV standard being processed. The MAX9568 provides a back-porch clamp output signal. The MAX9568 provides a loss-of-sync output to indicate a loss-of-video input signal. The MAX9568 provides an output to indicate odd and even fields. The MAX9568 provides a vertical interval coast output which allows control of a PLL oscillator when coasting through the vertical interval.
Component Video Input (CVIDIN)
CVIDIN provides a high input impedance to the analog video source. This eliminates the requirement for a lowimpedance video source. Following the input buffer is the sync slicer block. This block establishes a DC level for the incoming video signal. The sync information is stripped by using a comparator with threshold or slice level that automatically adjusts to the incoming signal. When the incoming signal has bilevel syncs, the slice is made 95mV above the sync tip. When the incoming signal has trilevel syncs, the slice is made 145mV above the sync tip. The device's wide dynamic range, 0.2V to VCC - 0.2V, allows the video signal from 0.5VP-P to 2VP-P to be processed and operate in the linear range. The mentioned threshold levels are independent of the signal amplitude. CVIDIN is biased to 0.35 x VCC through a 300k resistor. Use a 0.1F capacitor to AC-couple at the input if the input signal is not within the input-voltage range, as shown Figure 3.
INPUT-VOLTAGE RANGE MATRIX
VCC - 0.2V
2.7V < VCC < 5.5V 0.5V (-6dB) 2V (+6dB)
1V (0dB)
2V (+6dB) 0.2V 0.5V (-6dB)
Figure 3. Input-Voltage Range Matrix
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Component Analog TV Sync Separator
Composite Sync Output (CSYNCOUT)
CSYNCOUT reproduces the component video input waveform with the active video removed. This output contains all the information below the component video black level. CSYNCOUT is pulled high whenever sync is not detected at the component video input. See Figures 2a and 2b for composite sync output timing diagrams.
Coast
The MAX9568 provides a vertical interval coast output which allows the PLL oscillator to coast through the vertical interval. This output pulses low during vertical blanking interval.
MAX9568
Odd and Even Field Detection (ODD/EVEN)
ODD/EVEN produces a square wave that identifies the present field of an interlaced video source. ODD/EVEN output low indicates odd field while ODD/EVEN output high indicates even field. This square wave changes coincidentally with the beginning of the vertical pulse.
Vertical Sync Output (VSYNCOUT)
VSYNCOUT produces a pulse signal that defines the beginning of a new field in interlaced systems or frame in progressive systems. This output pulses low whenever the vertical sync pulse interval is detected. See Figure 4 for vertical sync output timing diagrams.
Applications Information
Chroma Filter
If the input signal is standard-definition composite video, a simple lowpass filter is recommended in front of the input to attenuate the chroma signal, or any highfrequency noise below the black level. As shown in Figure 5, when the input is standard-definition video, SDTV is logic-high and Q1 is turned on. When Q1 is on, R1 and C2 form a 600kHz lowpass filter to attenuate high-frequency noise and improve the performance of the MAX9568. When the input is high-definition video or extended definition video, SDTV is logic-low and Q1 is turned off, disabling the RC input filter.
Horizontal Sync Output (HSYNCOUT)
HSYNCOUT produces a pulse signal that defines the beginning of the horizontal line. This output pulses low whenever a horizontal sync pulse is detected. For interlace standards, the horizontal pulse output rate remains constant. See Figures 2a and 2b for horizontal sync output timing diagrams.
Standard- and High-Definition TV Detection (SDTV, HDTV, HL)
SDTV, HDTV, and HL produce logic outputs that indicate the standard of the component video signal at the input. SDTV output high indicates standard-definition television while SDTV output low indicates extended definition or high-definition television. HDTV output high indicates high-definition television while HDTV output low indicates standard-definition or extended definition television. HL output high indicates 625i, 625p (576p), and 1080i standards while HL output low indicates 525i, 525p (480p), and 720p standards. See Table 1.
BILEVEL SYNC PULSES CVIDIN VSYNCOUT tVP TRILEVEL SYNC PULSES CVIDIN VSYNCOUT tVP
Loss-of-Sync Output (LOS)
LOS produces logic output that indicates the presence of a video input signal. LOS output high indicates that there is a sync or video signal at the input while LOS low indicates the presence of a component video signal at CVIDIN.
Figure 4. Vertical Sync Output Timing Diagrams
Clamp Pulse Output (CLAMP)
CLAMP produces a pulse signal that is generally used to drive a black-level clamp circuit which restores the DC component to a video signal. This output pulses low during black-level (back porch) of each video line. See Figures 2a and 2b for clamp pulse output timing diagrams.
VIN
R1 1k C2 270pF Q1 MMBT3904
C1 0.1F
MAX9568
CVDIN SDTV
R2 10k
Figure 5. Chroma Filter
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Component Analog TV Sync Separator MAX9568
Pin Configuration
PROCESS: BiCMOS
TOP VIEW
Chip Information
CSYNCOUT CVIDIN VSYNCOUT COAST GND FR HL GND
1 2 3 4 5 6 7 8
16 15 14
VCC HSYNCOUT ODD/EVEN LOS CLAMP HDTV SDTV N.C.
MAX9568
13 12 11 10 9
QSOP
14
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Component Analog TV Sync Separator
Package Information
For the latest package outline information, go to www.maxim-ic.com/packages. PACKAGE TYPE 16 QSOP PACKAGE CODE E16-1 DOCUMENT NO. 21-0055
MAX9568
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QSOP.EPS
15
Component Analog TV Sync Separator MAX9568
Revision History
REVISION NUMBER 0 1 REVISION DATE 5/08 12/08 Initial release Removed MAX9566, MAX9567, and MAX9569 parts DESCRIPTION PAGES CHANGED -- 1-15
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.
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.

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