19-4103; Rev 1; 12/08

EVALUATION KIT AVAILABLE Component Analog TV Sync Separator

General Description Features MAX9568 The MAX9568 video sync separator extracts sync timing ♦ Stand-Alone Operation—No Timing Element information from standard-definition (SDTV), extended- Required definition (EDTV), and high-definition (HDTV) component ♦ Covers All Major Standards: SDTV, EDTV, and HDTV video signals. This device is designed for reliable opera- ♦ Identification of Input Standard tion in the presence of copy protection schemes such as ♦ Loss of Video Signal Detection MACROVISION®. ♦ Coast and Clamp Pulse Outputs The MAX9568 is a stand-alone device and requires no ♦ High-Impedance Bridging Video Input external components for timing or biasing. High-imped- ♦ ance video inputs prevent loading of the input signal No Distortion to Video Signal and eliminate the need for buffering. ♦ Low Quiescent Current (< 10mA) ♦ The MAX9568 is available in a 16-pin QSOP package. 2.7V to 5.5V Single Supply The device is specified over the -40°C to +85°C tem- perature range. Ordering Information Applications PART PIN-PACKAGE TOP MARK Video Digitizers LCD Panels MAX9568EEE+T 16 QSOP — Instrumentation Frame Grabbers Note: All devices are specified over the -40°C to +85°C operat- PDP Television Video Recorders ing 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

0.1μF

INPUT SYNC SLICER CSYNCOUT CVIDIN BUFFER HSYNCOUT OUTPUT CLAMP 300kΩ PULSE VSYNCOUT GENERATOR ODD/EVEN 0.35 VCC LOS VTHRESH COAST

FR VIDEO STANDARD HL MAX9568 DECODE SDTV HDTV

GND

______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

ABSOLUTE MAXIMUM RATINGS Supply Voltage (VCC to GND) ...... -0.3V to +6V Operating Temperature Range ...... -40°C to +85°C All Other Pins to GND ...... -0.3V to (VCC + 0.3V) Junction Temperature ...... +150°C Continuous Power Dissipation (TA = +70°C) Storage Temperature Range ...... -65°C to +150°C 16-Pin QSOP (derate 8.3mW/°C above +70°C) ...... 667mW Lead Temperature (soldering, 10s) ...... +300°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.

MAX9568

ELECTRICAL CHARACTERISTICS (VCC = +5V, VGND = 0V, TA = TMIN to TMAX. Typical values are at TA = +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ELECTRICAL CHARACTERISTICS

Supply Voltage Range VCC Inferred from horizontal pulse delay 2.7 5.5 V Supply Current ICC With 720p video standard input 8.5 13.5 mA Peak-to-peak video amplitude 0.5 2.0 Input-Voltage Range (Note 2) VIN V V Absolute range 0.2 CC - 0.2

VSLICE_BI Bilevel syncs 60 95 130 Slice Level mV VSLICE_TRI Trilevel syncs 110 145 180 Input Resistance RIN 300 kΩ 0.31 x 0.39 x Input DC Bias Voltage VB V VCC VCC DIGITAL LOGIC OUTPUTS

VCC = 5V 4.6 Output-Voltage High VOH IOUT = 1.6mA V VCC = 2.7V 2.1 VCC = 5V 0.4 Output-Voltage Low VOL IOUT = 1.6mA V VCC = 2.7V 0.5 AC ELECTRICAL CHARACTERISTICS

Input Capacitance CIP 8pF HSYNCOUT output jitter with respect to Jitter tJITTER 500 ps sync input for 720p video signal

Output Logic Rise and Fall Times tR, tF CL = 15pF 5 ns

2 ______Component Analog TV Sync Separator

TIMING CHARACTERISTICS MAX9568 (VCC = +5V, VGND = 0V, TA = TMIN to TMAX. Typical values are at TA = +25°C) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 525i (Figures 1a and 2a)

Horizontal Pulse Delay tHP 20 ns Horizontal Pulse Width tHPW 4.8 µs Clamp Pulse Delay tCP 570 ns Clamp Pulse Width tCPW 3.7 µs Composite Sync Output Leading tLE 15 ns Edge Delay Composite Sync Output Trailing tTE 15 ns Edge Delay

Vertical Pulse Delay tVP 20 ns Vertical Pulse Width tVPW Odd/even field 190/122 ns 625i (Figures 1b and 2a)

Horizontal Pulse Delay tHP 20 ns Horizontal Pulse Width tHPW 4.8 µs Clamp Pulse Delay tCP 570 ns Clamp Pulse Width tCPW 3.7 µs Composite Sync Output Leading tLE 15 ns Edge Delay Composite Sync Output Trailing tTE 15 ns Edge Delay

Vertical Pulse Delay tVP 20 ns Vertical Pulse Width tVPW 160/192 ns 525p/480p (Figures 1c and 2a)

Horizontal Pulse Delay tHP 20 ns Horizontal Pulse Width tHPW 2.4 µs Clamp Pulse Delay tCP 290 ns Clamp Pulse Width tCPW 1.6 µs Composite Sync Output Leading t 15 ns Edge Delay LE Composite Sync Output Trailing tTE 15 ns Edge Delay

Vertical Pulse Delay tVP 20 ns Vertical Pulse Width tVPW 190 ns 625p/576p (Figures 1d and 2a)

Horizontal Pulse Delay tHP 20 ns Horizontal Pulse Width tHPW 2.4 µs Clamp Pulse Delay tCP 290 ns

______3 Component Analog TV Sync Separator

TIMING CHARACTERISTICS (continued) (VCC = +5V, VGND = 0V, TA = TMIN to TMAX. Typical values are at TA = +25°C) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Clamp Pulse Width tCPW 1.6 µs Composite Sync Output Leading tLE 15 ns Edge Delay Composite Sync Output Trailing MAX9568 tTE 15 ns Edge Delay

Vertical Pulse Delay tVP 20 ns Vertical Pulse Width tVPW 192 ns 720p (Figures 1e and 2b)

Horizontal Pulse Delay tHP 20 ns Horizontal Pulse Width tHPW 540 µs Clamp Pulse Delay tCP 1.0 ns Clamp Pulse Width tCPW 1.25 µs Composite Sync Output Leading t 15 ns Edge Delay LE Composite Sync Output Trailing tTE 15 ns Edge Delay

Vertical Pulse Delay tVP 25 ns Vertical Pulse Width tVPW 110 ns 1080i (Figures 1f and 2b)

Horizontal Pulse Delay tHP 20 ns Horizontal Pulse Width tHPW 585 µs Clamp Pulse Delay tCP 1.1 ns Clamp Pulse Width tCPW 1.2 µs Composite Sync Output Leading t 15 ns Edge Delay LE Composite Sync Output Trailing tTE 15 ns Edge Delay

Vertical Pulse Delay tVP 25 ns Vertical Pulse Width tVPW 160/192 ns

Note 1: All devices are production tested at TA = +25°C. Specifications over temperature are guaranteed by design. Note 2: Input voltage range is guaranteed by the horizontal pulse delay.

4 ______

Component Analog TV Sync Separator MAX9568 Timing Diagrams ... 22 ... 21 282 283 284 ... 12 274... 285... 272 273 268 269 270 271 525i 267 266 265 264 525 258 259 260 261 262 263 257 256 519 520 521 522 523 524 1 2 3 4 5 6 7 8 9 10 11 19 20 EVEN FIELD ODD FIELD COAST COAST ODD/EVEN ODD/EVEN COMPOSITE COMPOSITE SYNC INPUT SYNC INPUT CLAMP PULSE CLAMP PULSE SYNC OUTPUT SYNC OUTPUT VERTICAL PULSE VERTICAL PULSE VIDEO/COMPOSITE VIDEO/COMPOSITE HORIZONTAL PULSE HORIZONTAL PULSE

Figure1a. Standard Interlaced 525i (NTSC) Component Video

______5 Component Analog TV Sync Separator

Timing Diagrams (continued) 336

MAX9568 18 24... 330 625i 314 311 312 313 315 316 317 318 319 320... 331 332... 337... 622 303 304 305 306 307 308 309 310 616 617 618 619 620 261 623 624 625 1 2 3 4 5 6 7 8 19 20... 23 FIELD 2 FIELD 1 COAST COAST ODD/EVEN ODD/EVEN COMPOSITE COMPOSITE SYNC INPUT SYNC INPUT CLAMP PULSE CLAMP PULSE SYNC OUTPUT SYNC OUTPUT VERTICAL PULSE VERTICAL PULSE VIDEO/COMPOSITE VIDEO/COMPOSITE HORIZONTAL PULSE HORIZONTAL PULSE

Figure1b. Standard Interlaced 625i (PAL) Component Video

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Component Analog TV Sync Separator MAX9568 Timing Diagrams (continued)

VIDEO/COMPOSITE SYNC INPUT

522 523 524 525 1 2...5 6 7 8 9 10 11 12 13 14 15... 2021 22... 42 43 44... 522

COMPOSITE SYNC OUTPUT

HORIZONTAL PULSE

CLAMP PULSE

VERTICAL PULSE

COAST

525p (480p)

Figure1c. Extended Standard Progressive 525p (480p) Component Video

VIDEO/COMPOSITE SYNC INPUT

616 617 618... 619 620... 623624 625 1 2 3 4 5 6 7 8 9... 1819 20... 44 45 46... 616

COMPOSITE SYNC OUTPUT

HORIZONTAL PULSE

CLAMP PULSE

VERTICAL PULSE

COAST

625p (576p)

Figure1d. Extended Standard Progressive 625p (576p) Component Video

VIDEO/COMPOSITE SYNC INPUT

742 743 744 745 746 747748 749 750 1 2 3 4 5 6 7 8... 2021 22... 25 26 27... 742

COMPOSITE SYNC OUTPUT

HORIZONTAL PULSE

CLAMP PULSE

VERTICAL PULSE

COAST

720p

Figure1e. High-Definition Progressive 720p Composite Video

______7 Component Analog TV Sync Separator

Timing Diagrams (continued)

MAX9568 18 22... 554 581 585... 1117 1080i 60Hz 560 1123 554 555 556 557 558 559 561 562 563 264 565 566 567 568 569 570 571... 582 583 584 1117 1118 1119 1120 1121 1122 1124 1125 1 2 3 4 5 6 7 8 9... 19 20 21 ODD FIELD EVEN FIELD COAST COAST ODD/EVEN ODD/EVEN COMPOSITE COMPOSITE SYNC INPUT SYNC INPUT CLAMP PULSE CLAMP PULSE SYNC OUTPUT SYNC OUTPUT VERTICAL PULSE VERTICAL PULSE VIDEO/COMPOSITE VIDEO/COMPOSITE HORIZONTAL PULSE HORIZONTAL PULSE

Figure1f. High-Definition Progressive 1080i Composite Video

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Component Analog TV Sync Separator MAX9568 Timing Diagrams (continued)

VIDEO/COMPOSITE SYNC INPUT VSLICE_BI VIDEO/COMPOSITE SYNC INPUT

COMPOSITE tLE VSLICE_TRI SYNC OUTPUT tTE t COMPOSITE LE SYNC OUTPUT tTE t HORIZONTAL HP t PULSE HPW HORIZONTAL tHP tHPW PULSE

CLAMP PULSE tCP tCPW CLAMP PULSE tCP tCPW

Figure2a. 525/625i 525/625p (480p/576p) Horizontal Timing Figure2b. 720p/1080i Horizontal Timing

Typical Operating Characteristics (VCC = +5V, VGND = 0V, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT SUPPLY CURRENT HORIZONTAL PULSE DELAY vs. SUPPLY VOLTAGE vs. TEMPERATURE vs. TEMPERATURE 10 10 50 VIDEO INPUT: 720p 45 9 9 MAX9568 toc03 VIDEO INPUT: 720p MAX9568 toc01 MAX9568 toc02 40 V = +5.0V 525i CC 35 8 8 30 7 7 25 720p NO INPUT 20 6 6 VCC = +2.7V

SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 15

HORIZONTAL PULSE DELAY (ns) 10 5 5 5 4 4 0 2.53.0 3.5 4.0 4.5 5.0 -40-15 10 35 60 85 -40-15 10 35 60 85 SUPPLY VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C)

______9 Component Analog TV Sync Separator

Typical Operating Characteristics (continued) (VCC = +5V, VGND = 0V, TA = +25°C, unless otherwise noted.)

HORIZONTAL PULSE WIDTH CLAMP PULSE DELAY CLAMP PULSE WIDTH vs. TEMPERATURE vs. TEMPERATURE vs. TEMPERATURE 6 1.6 4.0

1.4 3.5 525i s) 5 MAX9568 toc06 MAX9568 toc04 MAX9568 toc05 MAX9568 μ s)

525i 1.2 μ 3.0 525i 4 1.0 2.5

3 0.8 2.0

0.6 1.5 2 720p CLAMP PULSE DELAY (ns) 0.4 CLAMP PULSE WIDTH ( 1.0 720p HORIZONTAL PULSE WIDTH ( 1 720p 0.2 0.5

0 0 0 -40-15 10 35 60 85 -40-15 10 35 60 85 -40 -15 10 35 60 85 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)

HORIZONTAL PULSE JITTER HORIZONTAL PULSE JITTER (576p) (720p) 20ns/div 20ns/div MAX9568 toc07 MAX9568 toc08

1ns/div 1ns/div

10 ______Component Analog TV Sync Separator

Pin Description MAX9568

PIN NAME FUNCTION 1 CSYNCOUT Composite Sync Output. Active low. 2 CVIDIN Component Video Input 3 VSYNCOUT Vertical Timing Pulse Output. Active low. 4 COAST Coast Output. Active low. 5, 8 GND Ground 6 FR 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 7HL 525i, 525p (480p), and 720p standards. See Table 1. 9 N.C. No Connection. Not internally connected. Standard Output 1. SDTV high indicates standard-definition television. SDTV low indicates 10 SDTV extended definition or high-definition television. See Table 1. Standard Output 2. HDTV high indicates high-definition television. HDTV low indicates standard- 11 HDTV definition or extended definition television. See Table 1. 12 CLAMP Clamp Pulse Output. Active low during the back porch portion of component video. 13 LOS 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. 14 ODD/EVEN ODD/EVEN is logic-high for even fields and logic-low for odd fields. 15 HSYNCOUT Horizontal Timing Pulse Output. Active low. 16 VCC Positive Supply. Bypass VCC to GND with a 0.1µF capacitor.

Table 1. Video Standard Output Decoding OUTPUT PINS TV STANDARD CLASSIFICATION FR SDTV* HDTV* HL 525i SDTV High High Low Low 625i SDTV Low High Low High 525p/480p EDTV High Low Low Low 625p/576p EDTV Low Low Low High 720p HDTV High Low High Low 1080i/60 HDTV High Low High High 1080i/50 HDTV Low Low High High

______11 Component Analog TV Sync Separator

Detailed Description Component Video Input (CVIDIN) CVIDIN provides a high input impedance to the analog The MAX9568 sync separator extracts sync timing video source. This eliminates the requirement for a low- information from SDTV, EDTV, and HDTV component impedance video source. Following the input buffer is video signals. The MAX9568 is a stand-alone device, the sync slicer block. This block establishes a DC level and requires no external components to set timing or for the incoming video signal. The sync information is bias voltage. The MAX9568 has high input impedance, stripped by using a comparator with threshold or slice eliminating the need for a low-impedance video source level that automatically adjusts to the incoming signal. at the input. When the incoming signal has bilevel syncs, the slice is MAX9568 The MAX9568 provides composite sync, vertical sync, made 95mV above the sync tip. When the incoming and horizontal sync outputs. The MAX9568 provides signal has trilevel syncs, the slice is made 145mV automatic SDTV, EDTV, and HDTV detection logic out- above the sync tip. The device’s wide dynamic range, puts to indicate the type of TV standard being 0.2V to VCC - 0.2V, allows the video signal from 0.5VP-P processed. The MAX9568 provides a back-porch clamp to 2VP-P to be processed and operate in the linear output signal. range. The mentioned threshold levels are independent The MAX9568 provides a loss-of-sync output to indi- of the signal amplitude. cate a loss-of-video input signal. The MAX9568 pro- CVIDIN is biased to 0.35 x VCC through a 300kΩ resis- vides an output to indicate odd and even fields. The tor. Use a 0.1µF capacitor to AC-couple at the input if MAX9568 provides a vertical interval coast output the input signal is not within the input-voltage range, as which allows control of a PLL oscillator when coasting shown Figure 3. through the vertical interval.

INPUT-VOLTAGE RANGE MATRIX

2.7V < VCC < 5.5V VCC - 0.2V 0.5V (-6dB)

2V (+6dB)

1V (0dB)

2V (+6dB)

0.5V (-6dB) 0.2V

Figure 3. Input-Voltage Range Matrix

12 ______Component Analog TV Sync Separator

Composite Sync Output (CSYNCOUT) Coast MAX9568 CSYNCOUT reproduces the component video input The MAX9568 provides a vertical interval coast output waveform with the active video removed. This output which allows the PLL oscillator to coast through the ver- contains all the information below the component video tical interval. This output pulses low during vertical black level. CSYNCOUT is pulled high whenever sync blanking interval. is not detected at the component video input. See Figures 2a and 2b for composite sync output timing Odd and Even Field Detection (ODD/EVEN) diagrams. ODD/EVEN produces a square wave that identifies the present field of an interlaced video source. ODD/EVEN Vertical Sync Output (VSYNCOUT) output low indicates odd field while ODD/EVEN output VSYNCOUT produces a pulse signal that defines the high indicates even field. This square wave changes beginning of a new field in interlaced systems or frame coincidentally with the beginning of the vertical pulse. in progressive systems. This output pulses low whenev- er the vertical sync pulse interval is detected. See Applications Information Figure 4 for vertical sync output timing diagrams. Chroma Filter Horizontal Sync Output (HSYNCOUT) If the input signal is standard-definition composite HSYNCOUT produces a pulse signal that defines the video, a simple lowpass filter is recommended in front beginning of the horizontal line. This output pulses low of the input to attenuate the chroma signal, or any high- whenever a horizontal sync pulse is detected. For inter- frequency noise below the black level. As shown in lace standards, the horizontal pulse output rate remains Figure 5, when the input is standard-definition video, constant. See Figures 2a and 2b for horizontal sync SDTV is logic-high and Q1 is turned on. When Q1 is on, output timing diagrams. R1 and C2 form a 600kHz lowpass filter to attenuate high-frequency noise and improve the performance of Standard- and High-Definition TV the MAX9568. When the input is high-definition video or Detection (SDTV, HDTV, HL) extended definition video, SDTV is logic-low and Q1 is SDTV, HDTV, and HL produce logic outputs that indi- turned off, disabling the RC input filter. cate 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. BILEVEL SYNC PULSES CVIDIN HDTV output high indicates high-definition television while HDTV output low indicates standard-definition or VSYNCOUT tVP extended definition television. HL output high indicates 625i, 625p (576p), and 1080i TRILEVEL SYNC PULSES standards while HL output low indicates 525i, 525p CVIDIN (480p), and 720p standards. See Table 1. VSYNCOUT Loss-of-Sync Output (LOS) tVP LOS produces logic output that indicates the presence of a video input signal. LOS output high indicates that Figure 4. Vertical Sync Output Timing Diagrams there is a sync or video signal at the input while LOS low indicates the presence of a component video sig- nal at CVIDIN. MAX9568 R1 C1 μ Clamp Pulse Output (CLAMP) 1kΩ 0.1 F CLAMP produces a pulse signal that is generally used VIN CVDIN SDTV to drive a black-level clamp circuit which restores the C2 DC component to a video signal. This output pulses low 270pF during black-level (back porch) of each video line. See Q1 Figures 2a and 2b for clamp pulse output timing dia- MMBT3904 grams. R2 10kΩ

Figure 5. Chroma Filter

______13 Component Analog TV Sync Separator

Pin Configuration Chip Information PROCESS: BiCMOS TOP VIEW

CSYNCOUT 1 16 VCC

CVIDIN 2 15 HSYNCOUT

MAX9568 VSYNCOUT 3 14 ODD/EVEN

COAST 4 MAX9568 13 LOS

GND 5 12 CLAMP

FR 6 11 HDTV

HL 7 10 SDTV

GND 8 9 N.C.

QSOP

14 ______Component Analog TV Sync Separator

Package Information MAX9568 For the latest package outline information, go to www.maxim-ic.com/packages.

PACKAGE TYPE PACKAGE CODE DOCUMENT NO. 16 QSOP E16-1 21-0055 QSOP.EPS

______15 Component Analog TV Sync Separator

Revision History

REVISION REVISION PAGES DESCRIPTION NUMBER DATE CHANGED 0 5/08 Initial release — 1 12/08 Removed MAX9566, MAX9567, and MAX9569 parts 1–15

MAX9568

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