MegaQ™: An Automatic Composite Video Equalizer, Fully-Adaptive to 1 Mile (1600m) ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 The ISL59601, ISL59602, ISL59603, ISL59604, and Features ISL59605 (the “MegaQ™” product family) are single-channel adaptive equalizers designed to automatically compensate for long runs of Cat 5/6 or RG-59 cable, producing high quality video output with no user interaction. The ISL59601 equalizes Cat 5/6 up to a distance of 1000 feet (300 meters), while the ISL59605 equalizes up to 5300 feet (1600 meters). • ISL59605 Equalizes Up to 1 Mile (1600m) of Cat 5/6 and Up to 6000 Feet (1800m) of RG-59 MegaQ™ compensates for high frequency cable losses of up to 60dB (ISL59605) at 5MHz as well as source amplitude variations up to ±3dB. • Automatic Cable Type Compensation • Fully Automatic, Stand-Alone Operation - No User Adjustment Required • ±8kV ESD Protection on All Inputs • Compatible with Color or Monochrome, NTSC or PAL Signals • Automatic Polarity Detection and Inversion The ISL59601, ISL59602, ISL59603, ISL59604, and ISL59605 operate from a single +5V supply. Inputs are AC-coupled and internally DC-restored. The output can drive 2VP-P into two source-terminated 75Ω loads (AC-coupled or DC-coupled). • Compensates for ±3dB Source Variation (in Addition to Cable Losses) • Optional Serial Interface Adds Additional Functionality • 5MHz -3dB Bandwidth Related Literature • Works with Single-Ended or Differential Inputs • AN1780 “ISL59605-Catx-EVZ Evaluation Board Operation” (Stand-Alone Evaluation Board) • Output Drives Up to Two 150Ω Video Loads Applications • AN1776 “ISL59603-Coax-EVZ Evaluation Board Operation” (Stand-Alone Evaluation Board) • Surveillance Video • Video Distribution • AN1775 “ISL59605-SPI-EVALZ Evaluation Board (with Serial Interface) Operation” (Evaluation Board with USB Serial Interface) Typical Application NTSC, PAL, OR MONOCHROME CAMERA/ VIDEO SOURCE PASSIVE BALUN Application Circuit for Cat x Cable 1.0µF IN+ 50 1k 50 UP TO 1 MILE OF CAT-5/6 CABLE 1.0µF GND ISL59601 ISL59602 ISL59603 ISL59604 ISL59605 75.0 OUT CFB 300 0.047µF 1500pF IN- TV/DVR V CC Application Circuit for Coaxial Cable 0.1µF N TSC, PAL, O R M ON O CHRO M E CAM ERA / VIDEO SOU RCE 10k 1.0µF IN+ 37.5 0 TO 6000 FEET OVER RG-59 CO PPER -CORE CO AXIAL CABLE 37.5 0.1µF September 5, 2012 FN6739.2 1 1k 1.0µF G ND IN - ISL59601 ISL59602 ISL59603 ISL59604 ISL59605 75.0 OU T CFB 300 0.047µF 1500pF TV/DVR CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011, 2012. All Rights Reserved Intersil (and design) and MegaQ are trademarks owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Pin Configuration SD SCK SEN GND FREEZE ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 (20 LD QFN) TOP VIEW 20 19 18 17 16 GND 1 15 VREF VDD1 2 IN+ 3 GND 4 12 CFB IN- 5 11 VDD2 14 GND THERMAL PAD (SOLDER TO GND) 8 9 10 COLOR INVERT LOCKED 7 EQ_DISABLE GND 6 13 VIDEO OUT Block Diagram CLAMP AND IN+ DIFFERENTIAL TO IN- SINGLE-ENDED EQUALIZER AMP LPF VIDEO OUT CONVERTER CFB VREF SD SCK SEN FREEZE INVERT COLOR EQ_DISABLE VREF 2 LOCKED DIGITAL INTERFACE GEN FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Pin Descriptions PIN NUMBER PIN NAME DESCRIPTION 3 IN+ High impedance analog input. This is the positive differential video input. Input signals are externally AC-coupled with an external 1.0µF capacitor. See Applications Information section for information regarding input network for Cat x and coax cables. 5 IN- High impedance analog input. This is the negative differential video input. Input signals are externally AC-coupled with an external 1.0µF capacitor. See Applications Information section for information regarding input network for Cat x and coax cables. 12 CFB Analog input. Bypass to ground with a 1500pF capacitor and connect to VIDEO OUT via a 0.047µF capacitor in series with a 300Ω resistor. INPUTS OUTPUTS 13 VIDEO OUT Single-ended video output. The internal AGC sets this level to 2VP-P for a nominal 1VP-P (pre-cable) video source. DIGITAL I/O 7 EQ_DISABLE Digital Input. Equalizer Disable. 0: Normal Operation 1: Disables the equalizer to allow for insertion of upstream data onto the signal path, e.g. RS-485. This pin must be asserted high or low. Do not float this pin. 8 COLOR Digital I/O. Color Indicator/Override. 0: Monochrome 1: Color When used as an output, this pin indicates whether the incoming signal does or does not have a colorburst. When used as an input, this pin forces the state machine to into monochrome or color mode. See Figure 49 and associated text for more information on functionality. When COLOR is not externally driven, it is an output pin with a 13k (typical) output impedance. It is capable of driving 5V, high-impedance CMOS logic. Note: The COLOR indicator may be invalid for monochrome signals over greater than ~4800 feet. The device will still equalize properly if this occurs. 9 INVERT Digital I/O. Polarity Indicator/Override. 0: Nominal Polarity. 1: Inverted Polarity. When used as an output, this pin indicates the polarity of the incoming signal. When used as an input, this pin controls whether or not the input signal is inverted in the signal chain. See Figure 48 and associated text for more information on functionality. When INVERT is not externally driven, it is an output pin with a 13k (typical) output impedance. It is capable of driving 5V, high-impedance CMOS logic. In stand-alone mode, toggling this pin high-low-high or low-high-low will make the equalizer reacquire the signal. 10 LOCKED Digital Output. 0: Signal is not equalized (or not present). 1: Signal is equalized and settled. Note: The LOCKED indicator may be invalid for monochrome signals over greater than ~4800 feet. The device will still equalize properly if this occurs. 16 FREEZE Digital Input. Freezes equalizer in its current EQ state. 0: Continuous Update 1: Freeze EQ in current state. For stand-alone operations, connect FREEZE to the LOCKED pin to enter the recommended Lock Until Reset mode. Tie this pin low if unused. SERIAL INTERFACE 18 SEN Digital Input. Serial Interface Enable. This pin should be tied to ground when not in use. 19 SCK Digital Input. Serial Interface Clock Signal. This pin should be tied to ground when not in use. 20 SD Digital I/O. Serial Interface Data Signal. This pin should be tied to ground when not in use. POWER 2 VDD1 +5V power supply for analog equalizer. Isolate from +5V source with a ferrite bead and bypass to ground with a 0.1µF capacitor in parallel with a 4.7µF capacitor. 3 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Pin Descriptions (Continued) PIN NUMBER PIN NAME DESCRIPTION 11 VDD2 +5V power supply for output amplifier. Bypass to ground with a 0.1µF capacitor. 15 VREF Internally generated 2.5V reference. Bypass to ground with a low-ESR 0.47µF capacitor. Do not attach anything else to this pin. 1, 4, 6, 14, 17 GND Ground PAD Solder the exposed thermal PAD to ground for best thermal and electrical performance. THERMAL PAD EP Ordering Information PART NUMBER (Notes 1, 2, 3) PART MARKING MAX EQ LENGTH TEMP RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL59601IRZ 596 01IRZ 1000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59601IRZ-T7 596 01IRZ 1000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59601IRZ-T7A 596 01IRZ 1000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59602IRZ 596 02IRZ 2000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59602IRZ-T7 596 02IRZ 2000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59602IRZ-T7A 596 02IRZ 2000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59603IRZ 596 03IRZ 3000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59603IRZ-T7 596 03IRZ 3000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59603IRZ-T7A 596 03IRZ 3000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59604IRZ 596 04IRZ 4000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59604IRZ-T7 596 04IRZ 4000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59604IRZ-T7A 596 04IRZ 4000 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59605IRZ 596 05IRZ 5300 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59605IRZ-T7 596 05IRZ 5300 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59605IRZ-T7A 596 05IRZ 5300 feet -40 to +85 20 Ld QFN (4x4mm) L20.4x4C ISL59605-Catx-EVZ Stand-alone (no USB I/O) evaluation board ISL59603-Coax-EVZ Stand-alone (no USB I/O) evaluation board ISL59605-SPI-EVALZ Evaluation board with serial interface NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pbfree products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL59601, ISL59602, ISL59603, ISL59604, ISL59605. For more information on MSL please see techbrief TB363. 4 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Table of Contents Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Serial Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Serial Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Typical Performance Over 1000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Typical Performance Over 2000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Typical Performance Over 3000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Typical Performance Over 4000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Typical Performance Over 5200 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Typical Performance Over 1000 Feet of Copper-Core RG-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Typical Performance Over 2000 Feet of Copper-Core RG-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Typical Performance Over 3000 Feet of Copper-Core RG-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Typical Performance Over 4000 Feet of Copper-Core RG-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Typical Performance Over 5000 Feet of Copper-Core RG-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Typical Performance Over 6000 Feet of Copper-Core RG-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 MegaQ™ Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Equalization for Various Cable Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Unshielded Twisted Pair (UTP) App Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Coax Input Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Dual UTP/Coax Input Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Input Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Stand-Alone Operation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Lock Until RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Continuous Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Polarity Detection and Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 The COLOR Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Monochrome Video Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Security Cameras. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Additional Equalization Modes Available With the Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Continuous Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Lock Until RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Lock Until Signal Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Manual Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Serial Interface Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Write Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Read Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Register Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Bypassing and Layout Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 General PowerPAD Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 5 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Absolute Maximum Ratings Thermal Information (TA = +25°C) Supply Voltage between VDD and GND . . . . . . . . . . . . . . . . . . . . . . . . 5.75V Maximum Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Maximum Voltage on any Pin . . . . . . . . . . . . . . . . GND - 0.3V to VDD + 0.3V ESD Rating Human Body Model (tested per JESD22-A114) . . . . . . . . . . . . . . 8,000V Machine Model (Tested per JESD22-A115). . . . . . . . . . . . . . . . . . . . 600V CDM Model (Tested per JESD22-C101) . . . . . . . . . . . . . . . . . . . . . 2,000V Latch Up (Tested per JESD78; Class II, Level A). . . . . . . . . . . . . . . . . . . . . . . . . 100mA Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W) 20 Ld QFN Package (Notes 4, 5) . . . . . . . . 40 3.7 Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Ambient Operating Temperature . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Die Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 4. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside. Electrical Specifications VDD = VDD1 = VDD2 = +5V, source video amplitude before any cable loss = 1VP-P, cable type = Cat 5, cable length = 0 feet, RL = 150Ω (75Ω series + 75Ω load to ground), TA = +25°C, exposed die plate = 0V, unless otherwise specified. Max cable length = 1000 feet for ISL59601, 2000 feet for ISL59602, 3000 feet for ISL59603, 4000 feet for ISL59604, and 5300 feet for ISL59605. PARAMETER DESCRIPTION CONDITIONS MIN (Note 6) TYP MAX (Note 6) UNIT 4.5 5.0 5.5 V SUPPLY VDD VDD Operating Range IS1 VDD1 Supply Current 40 60 mA IS2 VDD2 Supply Current 30 45 mA PSRRDC Power Supply Rejection Ratio 60 dB AC PERFORMANCE BW -3dB Bandwidth Full power 5 MHz DG Differential Gain Cable length = max, 20IRE Sub Carrier on 100% ramp 1 % DP Differential Phase Cable length = max, 20IRE Sub Carrier on 100% ramp 1 ° Output Blanking/Backporch Level Measured at VIDEO OUT pin DC PERFORMANCE VBL 0.82 0.95 1.05 V INPUT CHARACTERISTICS VINDIFF_MIN Minimum Correctable Peak-to-Peak Signal Swing Measured at the source-end of cable, before cable losses 0.7 VP-P VINDIFF_MAX Maximum Correctable Peak-to-Peak Signal Swing Measured at the source-end of cable, before cable losses 1.4 VP-P VCM-MIN Min Common Mode Input Voltage 1 V VCM-MAX Max Common Mode Input Voltage 4 V SNR Signal-to-Noise Ratio, NTC-7 weighted filter EQ = 0 feet -67 dB rms EQ = 1,000 feet -67 dB rms EQ = 2,000 feet -65 dB rms EQ = 3,000 feet -64 dB rms EQ = 4,000 feet -61 dB rms EQ = 5,300 feet -54 dB rms 6 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Electrical Specifications VDD = VDD1 = VDD2 = +5V, source video amplitude before any cable loss = 1VP-P, cable type = Cat 5, cable length = 0 feet, RL = 150Ω (75Ω series + 75Ω load to ground), TA = +25°C, exposed die plate = 0V, unless otherwise specified. Max cable length = 1000 feet for ISL59601, 2000 feet for ISL59602, 3000 feet for ISL59603, 4000 feet for ISL59604, and 5300 feet for ISL59605. (Continued) PARAMETER DESCRIPTION CMRR Common-mode Rejection Ratio at fIN = 100kHz IClamp CONDITIONS MIN (Note 6) TYP MAX (Note 6) UNIT 0 feet cable -50 dB 2,500 feet cable -35 dB 25 µA ±0.5 dB Input Clamp Current OUTPUT CHARACTERISTICS AGC-ACC AGC Accuracy Accuracy of sync tip amplitude relative to 600mV IOUT Output Drive Current 40 mA tEN-EQ Enable-to-Equalization On Time 500 ns tDIS-EQ Disable-to-Equalization Off Time 500 ns LOGIC CONTROL PINS VIH Logic High Level VIL Logic Low Level ILOGIC Logic Input Current 2.0 V 0.8 V EQ_DISABLE, FREEZE, SD, SCK, SEN ±10 µA INVERT, COLOR ±500 µA Serial Timing PARAMETER DESCRIPTION CONDITIONS MIN (Note 6) TYP MAX (Note 6) UNIT tCS Serial Enable Deselect Time 10 ns tLEAD Lead Time 10 ns tSU SD, SCK Setup Time 10 ns tH SD, SEN, SCK Hold Time 10 ns tWH SCK High Time 100 ns tWL SCK Low Time 100 ns tRI SD, SEN, SCK Rise Time 10 ns tFI SD, SEN, SCK Fall Time 10 ns tLAG Lag Time 10 ns tV SCK Rising Edge to SD Data Valid fSCK SCK Frequency Read Operation 10 ns 5 MHz NOTE: 6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design. 7 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Serial Timing Diagram t CS SEN t LEAD SCK SD 1 t SU 1 tH f SCK t WH 2 3 4 A6 A5 A4 5 tWL A3 tRI 6 7 A2 A1 8 tV 9 10 D7 A0 11 D6 t LAG t FI 12 D5 13 D4 14 D3 15 D2 16 D1 D0 READ OPERATION t CS SEN t LEAD 1 SCK tH 2 fSCK t WH 3 4 0 tRI 6 7 A2 A1 8 9 A0 D7 10 11 t LAG t FI 12 13 14 15 16 t WL t SU SD 5 A6 A5 A4 A3 D6 D5 D4 D3 D2 D1 D0 WRITE OPERATION A6:A0 = REGISTER ADDRESS, D7:D0 = DATA TO BE READ/WRITTEN 8 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 1000 Feet of Cat 5 FIGURE 1. TEST PATTERN IMAGE AFTER 1000 FEET OF UNCOMPENSATED CAT 5 200mV/DIV FIGURE 2. TEST PATTERN IMAGE AFTER 1000 FEET OF CAT 5 WITH ISL59601 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 3. MULTIBURST WAVEFORM AFTER 1000 FEET OF UNCOMPENSATED CAT 5 9 10µs/DIV FIGURE 4. MULTIBURST WAVEFORM AFTER 1000 FEET OF CAT 5 WITH ISL59601 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 2000 Feet of Cat 5 FIGURE 5. TEST PATTERN IMAGE AFTER 2000 FEET OF UNCOMPENSATED CAT 5 200mV/DIV FIGURE 6. TEST PATTERN IMAGE AFTER 2000 FEET OF CAT 5 WITH ISL59602 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 7. MULTIBURST WAVEFORM AFTER 2000 FEET OF UNCOMPENSATED CAT 5 10 10µs/DIV FIGURE 8. MULTIBURST WAVEFORM AFTER 2000 FEET OF CAT 5 WITH ISL59602 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 3000 Feet of Cat 5 FIGURE 9. TEST PATTERN IMAGE AFTER 3000 FEET OF UNCOMPENSATED CAT 5 200mV/DIV FIGURE 10. TEST PATTERN IMAGE AFTER 3000 FEET OF CAT 5 WITH ISL59603 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 11. MULTIBURST WAVEFORM AFTER 3000 FEET OF UNCOMPENSATED CAT 5 11 10µs/DIV FIGURE 12. MULTIBURST WAVEFORM AFTER 3000 FEET OF CAT 5 WITH ISL59603 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 4000 Feet of Cat 5 FIGURE 13. TEST PATTERN IMAGE AFTER 4000 FEET OF UNCOMPENSATED CAT 5 200mV/DIV FIGURE 14. TEST PATTERN IMAGE AFTER 4000 FEET OF CAT 5 WITH ISL59604 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 15. MULTIBURST WAVEFORM AFTER 4000 FEET OF UNCOMPENSATED CAT 5 12 10µs/DIV FIGURE 16. MULTIBURST WAVEFORM AFTER 4000 FEET OF CAT 5 WITH ISL59604 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 5200 Feet of Cat 5 FIGURE 17. TEST PATTERN IMAGE AFTER 5200 FEET OF UNCOMPENSATED CAT 5 FIGURE 18. TEST PATTERN IMAGE AFTER 5200 FEET OF CAT 5 WITH ISL59605 200mV/DIV 200mV/DIV 10µs/DIV FIGURE 19. MULTIBURST WAVEFORM AFTER 5200 FEET OF UNCOMPENSATED CAT 5 13 10µs/DIV FIGURE 20. MULTIBURST WAVEFORM AFTER 5200 FEET OF CAT 5 WITH ISL59605 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 1000 Feet of Copper-Core RG-59 FIGURE 21. TEST PATTERN IMAGE AFTER 1000 FEET OF UNCOMPENSATED RG-59 COAX 200mV/DIV FIGURE 22. TEST PATTERN IMAGE AFTER 1000 FEET OF RG-59 COAX WITH ISL59601 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 23. MULTIBURST WAVEFORM AFTER 1000 FEET OF UNCOMPENSATED RG-59 COAX 14 10µs/DIV FIGURE 24. MULTIBURST WAVEFORM AFTER 1000 FEET OF RG-59 COAX WITH ISL59601 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 2000 Feet of Copper-Core RG-59 FIGURE 25. TEST PATTERN IMAGE AFTER 2000 FEET OF UNCOMPENSATED RG-59 COAX 200mV/DIV FIGURE 26. TEST PATTERN IMAGE AFTER 2000 FEET OF RG-59 COAX WITH ISL59602 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 27. MULTIBURST WAVEFORM AFTER 2000 FEET OF UNCOMPENSATED RG-59 COAX 15 10µs/DIV FIGURE 28. MULTIBURST WAVEFORM AFTER 2000 FEET OF RG-59 COAX WITH ISL59602 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 3000 Feet of Copper-Core RG-59 FIGURE 29. TEST PATTERN IMAGE AFTER 3000 FEET OF UNCOMPENSATED RG-59 COAX 200mV/DIV FIGURE 30. TEST PATTERN IMAGE AFTER 3000 FEET OF RG-59 COAX WITH ISL59602 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 31. MULTIBURST WAVEFORM AFTER 3000 FEET OF UNCOMPENSATED RG-59 COAX 16 10µs/DIV FIGURE 32. MULTIBURST WAVEFORM AFTER 3000 FEET OF RG-59 COAX WITH ISL59602 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 4000 Feet of Copper-Core RG-59 FIGURE 33. TEST PATTERN IMAGE AFTER 4000 FEET OF UNCOMPENSATED RG-59 COAX 200mV/DIV FIGURE 34. TEST PATTERN IMAGE AFTER 4000 FEET OF RG-59 COAX WITH ISL59602 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 35. MULTIBURST WAVEFORM AFTER 4000 FEET OF UNCOMPENSATED RG-59 COAX 17 10µs/DIV FIGURE 36. MULTIBURST WAVEFORM AFTER 4000 FEET OF RG-59 COAX WITH ISL59602 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 5000 Feet of Copper-Core RG-59 FIGURE 37. TEST PATTERN IMAGE AFTER 5000 FEET OF UNCOMPENSATED RG-59 COAX 200mV/DIV FIGURE 38. TEST PATTERN IMAGE AFTER 5000 FEET OF RG-59 COAX WITH ISL59603 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 39. MULTIBURST WAVEFORM AFTER 5000 FEET OF UNCOMPENSATED RG-59 COAX 18 10µs/DIV FIGURE 40. MULTIBURST WAVEFORM AFTER 5000 FEET OF RG-59 COAX WITH ISL59603 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Typical Performance Over 6000 Feet of Copper-Core RG-59 FIGURE 41. TEST PATTERN IMAGE AFTER 6000 FEET OF UNCOMPENSATED RG-59 COAX 200mV/DIV FIGURE 42. TEST PATTERN IMAGE AFTER 6000 FEET OF RG-59 COAX WITH ISL59603 (OR BETTER) 200mV/DIV 10µs/DIV FIGURE 43. MULTIBURST WAVEFORM AFTER 6000 FEET OF UNCOMPENSATED RG-59 COAX 19 10µs/DIV FIGURE 44. MULTIBURST WAVEFORM AFTER 6000 FEET OF RG-59 COAX WITH ISL59603 (OR BETTER) FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Functional Description Equalization for Various Cable Types MegaQ™ Overview TABLE 1. CABLE TYPES AND LENGTHS MegaQ™ is a fully automated, stand-alone equalizer for composite video transmitted over UTP (Unshielded Twisted Pair, i.e. Cat 5, Cat 6, etc.) or coaxial (RG-59) cables. Differential video signals sent over long distances of twisted pair wire exhibit large high frequency attenuation, resulting in loss of high frequency detail/blurring. The exact loss characteristic is a complex function of wire gauge, length, composition, and coupling to adjacent conductors. The video signal can be restored by applying a filter with the exact inverse transfer function to the far end signal. MegaQ™ is designed to compensate for the losses due to long cables, and incorporates the functionality and flexibility to match a wide variety of cable types and loss characteristics. While MegaQ™ was designed and optimized for stand-alone operation, with no need for any external control of any kind, it has an optional SPI serial interface with some additional features. See “Additional Equalization Modes Available With the Serial Interface” on page 22 for more information on the features and operation of the serial interface. Copper-Core CAT5/CAT5e 5300 feet CAT6 5600 feet Coaxial - RG-59 6000 feet CAT2/CAT3 (telephone wire) 3000 feet Belden IMSA Spec 39-2 581718 (3-pair traffic light cable) 5300 feet Non-Copper-Core* CAT5/CAT5e CCA (Copper-Coated Aluminum Core) 2000 feet Coaxial - RG-59 CCS (Copper-Coated Steel Core) 1500 feet *Image quality will be significantly improved over unequalized cable, but there will still be some image smearing due to the high resistance of the core material. Ferrite Bead – DC resistance = 1Ω, 600Ω at 100MHz, 100mA DC current rating 5V TVS Z1 R3 5V TVS 49.9 R2 49.9 V DD1 VDD2 IN+ OUT GND 1k DIFFERENTIAL VIDEO INPUT- R1 1.0µF C2 IN- Z2 TVS = Transient Voltage Suppressor a.k.a. Transorb SERIAL INTERFACE (OPTIONAL) C9 0.1µF 4.7µF 0.1µF C1 1.0µF +5V C8 C7 DIFFERENTIAL VIDEO INPUT+ MAXIMUM LENGTH SUPPORTED CABLE TYPE SEN SCK SD CFB ISL59601 ISL59602 ISL59603 ISL59604 ISL59605 300 C4 R5 1500pF Internally Generated VREF EQ_DISABLE COLOR INVERT LOCKED R6 75.0 VIDEO OUT C5 0.047µF C6 0.47µF Freezes EQ once lock is achieved. Tie FREEZE low if not used. FREEZE GND FIGURE 45. APPLICATION CIRCUIT FOR UTP CABLE 20 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Application Information Unshielded Twisted Pair (UTP) App Circuit Figure 45 shows the complete schematic for a MegaQ™ equalizer configured for unshielded twisted pair (UTP) cable. The input signal is terminated into the network formed by R1, R2, and R3. C1 and C2 AC-couple the signal into MegaQ™. To protect the front-end circuitry, 5V transorbs (Z1 and Z2) should be used instead of diodes because the signals on either differential input may swing far enough below ground to turn on a diode and distort the video. On the output side, C5, R5, and C4 form a compensation network, while R6 provides 75Ω source-termination for the video output. MegaQ™ has an native gain of 6dB, so when VIDEO OUT is terminated into 75Ω (the input to a DVR, TV, etc.), R6 and the 75Ω terminator form a 2:1 divider, producing standard video amplitude across the 75Ω terminator. Coax Input Circuit VCC C4 D1 0.1µF 10k COAX 10k UTP IN+ COAX 5.6pF Cx* Z2 5V TVS *optional R4 1.0µF Z1 5V TVS UTP IN- D1 300 R5 49.9 SW1A 49.9 SW1B C3 0.1µF C1 R1 R3 R2 1k C2 IN+ GND MegaQTM IN- 1.0µF Close all switches for Coax TVS = Transient Voltage Suppressor a.k.a. Transorb C1 37.5 R1 1k 37.5 R3 R2 C2 IN+ GND MegaQTM IN- 1.0µF C3 0.1µF TVS = Transient Voltage Suppressor a.k.a. Transorb FIGURE 46. APPLICATION CIRCUIT FOR COAX CABLE Dual UTP/Coax Input Circuit If desired, it is also possible to support both UTP and coax cables with the same PCB layout using two SPST switches that are closed when in coax mode (Figure 47). Since UTP requires a 100Ω termination network while coax requires 75Ω, a switch to introduce a shunt 300Ω resistor when in coax mode will change the termination from 100Ω to 75Ω. A second switch is required to engage C3. The addition of the coax startup circuit (D1, R4, C4) can unbalance the capacitance of the differential pair and degrade the CMRR in UTP applications. This in turn could cause excess noise at long lengths of UTP. In UTP applications, if the output signal is too noisy at long distances, an optional capacitor Cx may be used to balance the capacitance of the differential 21 Input Multiplexing Placing a semiconductor multiplexer in front of this part may increase high frequency attenuation and noise. However a low-capacitance mechanical relay may be acceptable. Note that changing from one channel to another in Lock Until Reset mode will require a reset (INVERT toggle) to trigger equalization of the new channel (see “Lock Until RESET” on page 21). For best performance, do not multiplex the inputs to the equalizer - this can further degrade the signal. Instead, multiplex at the output after equalization has been performed. Stand-Alone Operation and Configuration R4 1.0µF Z2 5V TVS VCC C4 0.1µF FIGURE 47. APPLICATION CIRCUIT FOR UTP/COAX CABLE Figure 46 shows the input termination recommended for coaxial cables. The differential termination resistance is now 75Ω to match the characteristic impedance of the RG-59 coax cable. C3 bypasses high-frequency noise on the coax ground line to system ground. This allows the coax ground to be independent of the system at low frequencies (DC to 50/60Hz) to accommodate differences in the ground potential of the remote video source(s). The coax startup network (D1, R4, C4) prevents a rare start-up condition that can occur when a high average-picture-level (e.g. white screen) video signal is present on the inputs before the power has been applied. Z1 5V TVS inputs. The value of Cx should be determined by calculating how much trace capacitance is added by the coax startup circuit. A typical value for a good layout is ~5pF. Note that only coax or UTP should be connected at any one time - this circuit does not multiplex between them. In its default stand-alone configuration, MegaQ™ features two modes of automatic cable equalization: Lock Until Reset and Continuous Update. Lock Until Reset is the recommended mode for most applications. LOCK UNTIL RESET In the Lock Until Reset mode, once MegaQ™ finds the optimum equalization and the LOCKED signal goes high, the equalization is frozen and will not change until either the power is cycled or the INVERT signal is toggled, which initiates a re-equalization of the input signal. Re-equalization is usually only necessary during device/system evaluation - in normal operation MegaQ™ powers-up, acquires and equalizes the signal, and continues to equalize until/unless it is powered-down. If the signal is lost in Lock Until Reset mode, the LOCKED pin will not go low until/unless the device is reset by toggling the INVERT pin. A reset should only be necessary if the length or type of cable was changed without cycling power. To enable the Lock Until Reset mode, tie the LOCKED output pin to the FREEZE input pin as shown in Figure 45 on page 20. To generate a reset (and trigger a re-equalization), toggle the external INVERT pin to its opposite state for at least 1ms. Depending on the initial state of INVERT, this would be a high-low-high or low-high-low sequence. FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 CONTINUOUS UPDATE In the Continuous Update mode, MegaQ™ will continuously try to find the optimum equalization solution. When the equalization has settled for 100 sequential video lines with no changes, the LOCKED pin will go high. However once lock is achieved, noise and average-picture-level changes may cause the device to unlock, causing some image perturbation while MegaQ™ re-equalizes. The Continuous Update mode is enabled whenever the FREEZE pin is set to a logic low (grounded). Polarity Detection and Correction MegaQ™ features polarity detection and correction, automatically detecting incorrectly-wired input signals and inverting the signal inside the IC as necessary. The detected polarity is indicated by the state of the INVERT pin. The INVERT pin has 2 modes of operation. It is typically used to indicate whether or not the incoming signal is inverted (the “+” signal on the “-” input and vice-versa). The state of the invert signal is then used to tell the signal processing logic whether or not to invert the signal in the signal path. A logic high on INVERT indicates that the positive differential input signal is on IN- (pin 5) and the negative differential input signal is on IN+ (pin 3). A logic low indicates nominal polarity. However the unique design of the INVERT I/O pin (Figure 48) also allows MegaQ™’s internal inversion detector to be overdriven externally, forcing MegaQ™ to invert or not invert the signal regardless of the state of the inversion detection function. This is not necessary in normal operation, but it may improve performance in particularly noisy environments when the polarity of the signal is guaranteed to be correct. INVERT PIN COLOR DETECTION LOGIC 13k SIGNAL PROCESSING ISL5960x FIGURE 49. COLOR PIN STRUCTURE However the unique design of the COLOR I/O pin (Figure 49) also allows MegaQ™’s internal color detector to be overdriven externally. This is not necessary in normal operation, but it may improve performance in particularly noisy environments when the signal type is predetermined. Monochrome Video Signals MegaQ™ will equalize monochrome signals to the same distance as color signals. However due to the high level of noise past ~4800 feet, the COLOR and LOCKED indicators may become invalid for monochrome signals. The device will still equalize properly if this occurs. Security Cameras MegaQ™ is ideal for security camera installations. The automatic adaptive equalizer doesn't need any active silicon on the transmit side of the cable, enabling upgrading of older installations without having to touch the installed camera base, including older monochrome cameras. MegaQ™ automatically adjusts for wiring polarity errors as well as adjusts for optimum image quality. These features eliminates the need for the installer to make any adjustments. With an extended equalization range of 5300ft, the ISL59605 enables cameras to be placed in even more remote locations, enabling coverage of up to three square miles from a single monitoring station. 13k INVERSION DETECTION LOGIC COLOR PIN SIGNAL PROCESSING ISL5960x FIGURE 48. INVERT PIN STRUCTURE The COLOR Pin The color pin has 2 modes of operation. It is typically used to indicate whether or not the incoming signal has a colorburst or not. The state of the color signal is then used to tell the signal processing logic whether or not it can rely on the presence of a colorburst signal. A logic high indicates a color signal; a logic low indicates monochrome. Additional Equalization Modes Available With the Serial Interface In addition to the Lock Until Reset and Continuous Update modes, software control of MegaQ™ through the SPI interface adds a Lock Until Signal Loss mode and a Manual Equalization mode. Note: When controlling MegaQ™ through the SPI interface, the external FREEZE pin must be tied to ground (logic low). Failure to keep FREEZE at a logic low will prevent the software controls from working properly. All of the equalization modes are selected via the two “Locking Mode/Manual Length Enable” register bits, 0x05[1:0]. CONTINUOUS UPDATE Continuous Update mode is entered by setting address 0x05[1:0] = 00b. Continuous Update behavior is the same as described in the stand-alone mode. 22 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 LOCK UNTIL RESET Serial Interface Protocol Lock Until Reset mode is entered by setting address 0x05[1:0] = 10b. Lock Until Reset behavior is the same as described in the stand-alone mode, with the exception of how to generate a reset. While MegaQ™ is designed to work as a stand-alone equalizer, it does have a serial interface that can be used to control it and monitor its state. To generate a reset via software, select Continuous Update mode and then return to Lock Until Reset mode (register 0x05[1:0] = 00b then 10b). Toggling INVERT (either the hardware pin or the software bit) will not cause a reset/re-equalization event. LOCK UNTIL SIGNAL LOSS Lock Until Signal Loss mode is entered by setting address 0x05[1:0] = 01b. Lock Until Signal Loss can only be enabled via the SPI interface. In the Lock Until Signal Loss mode, MegaQ™ will freeze the equalization once the LOCKED pin goes high (in the same way as Lock Until Reset). Unlike the “Settled” state in the Continuous Update mode, only a signal loss lasting more than 1ms (typical) will cause MegaQ™ to re-equalize the signal when it returns. In this sense, the Lock Until Signal Loss mode can be considered as halfway between the Continuous Update mode and the Lock Until Reset mode. The Lock Until Signal Loss mode is useful, for example, when testing or demonstrating a system by plugging in multiple different length cables - it eliminates the need to also generate a reset. To prevent potentially undesired re-equalization, signal losses lasting less than 1ms (typical) do not trigger a re-equalization. MANUAL LENGTH Manual Length mode is entered by setting address 0x05[1:0] = 11b. Manual Length mode allows the forcing of specific cable lengths, cable type, DC gains, etc. (see the Register Listing on the next page). The “Cable Type” bit (0x05 [4]) allows selection between the two most common cable types for security video: Cat 5/6 or steel core RG-59 coaxial. However since many of MegaQ™’s automatic functions and adjustments are disabled in Manual Length mode, performance is almost always worse than what is achieved in any of the automatic modes. For example, automatic polarity correction is disabled so the polarity must be manually set using the INVERT bit. There is no practical reason to ever use Manual Length mode in normal operation. 23 The serial interface is used to read and write the configuration registers. It uses three signals (SCK, SD, and SEN) for programming. The serial clock can operate up to 5MHz (5Mbits/s). The “Serial Timing Diagram” on page 8 shows the timing of serial I/O. A transaction begins when the host microcontroller takes SEN (serial enable) high. The first 8 bits on the SD (serial data) pin are latched by MegaQ™ on the rising edge of SCK (serial clock) to form the address byte. The MSB of the address byte indicates whether the operation is a read (1) or a write (0), and the next seven bits indicate which register is to be read from or written to. Each read and write operation consists of 16 bits: 8 bits for an address byte followed by 8 bits of data. See the “Serial Timing Diagram” on page 8 for more details on using the SPI interface. TABLE 2. ADDRESS BYTE FORMAT 0 = Write 1 = Read A6 A5 A4 A3 A2 A1 (MSB) A0 (LSB) WRITE OPERATION After the address byte is clocked in, the next 8 bits should contain the data to be sent to the register identified in the address byte. READ OPERATION After the rising edge of the 8th clock after the address byte is clocked in, the microcontroller should tristate the SD line so MegaQ™ can begin to output data on the SD pin (from the register identified in the address byte), beginning on the 9th rising edge of SCK. The data should be latched on the falling edge of SCK to allow enough time for the data to settle. See ““Serial Timing Diagram” on page 8 for more details on how to read from the registers. FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Register Listing ADDRESS 0x00 0x01 0x02 REGISTER (DEFAULT VALUE) Device ID (0x31) Signal Status (N/A) Manual Length(0x00) 24 BIT(S) FUNCTION NAME DESCRIPTION 3:0 Device Revision 0 = initial silicon, 1 = first revision, etc. 7:4 Device ID 0x3 0 Signal Present 0: A signal is not present at the input 1: A signal is present at the input 1 DLL Locked 0: DLL is not locked 1: DLL is locked 2 Signal Polarity 0: Inverted Polarity 1: Nominal Polarity This bit is only valid if the INVERT pin is connected as an output. If INVERT is overdriven, this value may not reflect the polarity of the input signal. 3 Color Detected 0: Signal is monochrome 1: Signal has a colorburst 4 Signal Overloaded 0: Signal (if present) is within normal range 1: Signal appears to be overloaded 5 Settled 0: EQ is not settled, though DLL may be locked. 1: EQ has stabilized and equalization achieved. Manual Length Manual Length Control; 0x0 through 0x3F, 84 feet per bit. 0x0: 0 feet. 0x3F: 5300 feet (Cat 5 mode) This register sets the EQ setting when MegaQ™ is in manual length mode (reg 0x05[1:0] = 11). Note that the length in this register is for Cat 5 cable when “Cable Type” (reg 0x05[4]) equals 0. When “Cable Type” is set to 1 (coax mode), then the length is for steel core coax. In coax mode, the maximum length is 0x14 (~1200 feet) and setting the register higher than this value does not provide any increase in equalization. 5:0 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Register Listing (Continued) ADDRESS REGISTER (DEFAULT VALUE) 0x03 Manual DC Gain (0x20) 0x04 Pin Overrides (0x00) 0x05 Equalization Control (0x00) 25 BIT(S) 5:0 FUNCTION NAME DESCRIPTION Manual DC Gain 0x00: Maximum DC Gain (+3dB) 0x20: Mid-Scale 0dB 0x3F: Minimum DC Gain (-3dB) This register sets the DC Gain when the device is in manual length mode (reg 0x05[1:0] = 11). 0 Freeze Select 0: Use value of FREEZE pin. 1: Use value in “Freeze Value” bit 1 Freeze Value If Freeze Select = 1, then: 0: Equalization is not frozen 1: Equalization is frozen at current setting. If Freeze Select = 0, then this bit is ignored. 2 Eq-Disable Select 0: Use value of EQ_DISABLE pin. 1: Use value in “Eq-Disable Value” bit 3 Eq-Disable Value If Eq-Disable Select = 1, then: 0: Equalizer is enabled 1: Equalizer is disabled (allows data to be sent upstream over cable pair connected to inputs) If Eq-Disable Select = 0, then this bit is ignored. 4 Color Select 0: Use value of COLOR pin 1: Use value in “Color Value” bit 5 Color Value If Color Select = 1, then 0: Monochrome Mode 1: Color Mode If Color Select = 0, then this bit is ignored. 6 Invert Select 0: Use value of INVERT pin. 1: Use value in “Invert Value” bit 7 Invert Value If Invert Select = 1, then 0: Incoming signal is not inverted 1: Incoming signal is inverted If Invert Select = 0, then this bit is ignored. 1:0 Locking Mode/Manual Length Enable 00 = Continuous Monitoring 01 = Lock Until Signal Loss* 10 = Lock Until Reset 11 = Manual Length** *Signal must be missing for at least 1ms in order to trigger a re-equalization. ** In Manual Length mode the polarity corrector is disabled and the polarity must be set using the INVERT bit or pin. Note: The FREEZE pin must be tied to ground/a logic low for this function to work correctly. 3:2 Noise Filter 00: No Noise Filtering 01: Min Noise Filtering 10 or 11: Max Noise Filtering Note: Noise Filtering is only available on the ISL59605 4 Cable Type 0: CAT5/6 Mode 1: Steel Core Coax Mode This bit is ignored in all modes except Manual Length (reg 0x05[1:0] = 11). Set to 1 if using copper-coated steel-core coaxial cable and you are in Manual Length. FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Bypassing and Layout Considerations MegaQ™ requires a dedicated ground plane in order to function properly. For 2-layer boards, pour a quarter-inch ground plane extending around the device on both the top and bottom layers. Ensure that the ground plane on the bottom layer is a solid plane with no traces cutting through it. Bypass capacitors must be placed as close as possible to the device in order to ensure good performance at longer lengths of equalization. Ensure that the ground connections for the bypass capacitors connect directly to the same uniform ground plane described previously. General PowerPAD Design Considerations The thermal pad must be connected to the ground plane for heat dissipation. Figure 50 is an example of how to use vias to remove heat from the IC. Power Dissipation The maximum power dissipation allowed in a package is determined according to Equation 1: T JMAX – T AMAX PD MAX = ---------------------------------------Θ JA (EQ. 1) Where: TJMAX = Maximum junction temperature TAMAX = Maximum ambient temperature ΘJA = Thermal resistance of the package The maximum power dissipation actually produced by an IC is the total quiescent supply current times the total power supply voltage, plus the power in the IC due to the load, or: for sourcing use Equation 2: V OUT PD MAX = V S × I SMAX + ( V S – V OUT ) × ------------RL (EQ. 2) for sinking use Equation 3: (EQ. 3) PD MAX = V S × I SMAX + ( V OUT – V S ) × I LOAD FIGURE 50. PCB VIA PATTERN The thermal pad is electrically connected to GND through the high resistance IC substrate. We recommend you fill the thermal pad area with vias. The via array should be centered in the thermal pad and placed such that the center on center spacing is 3x the via radius. Vias should be small, but large enough to allow solder wicking during reflow. Connect all vias to ground. It is important the vias have a low thermal resistance for efficient heat transfer. Do not use “thermal relief” patterns. It is important to have a solid connection of the plated-through hole to each plane. Where: VS = Supply voltage ISMAX = Maximum quiescent supply current VOUT = Maximum output voltage of the application RLOAD = Load resistance tied to ground ILOAD = Load current For additional products, see www.intersil.com/product_tree Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted in the quality certifications found at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 26 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest Rev. DATE August 6, 2012 February 4, 2011 REVISION CHANGE FN6739.2 Typical applications circuit diagrams and corresponding text updated to reflect more optimal setup for the device. Converted to Updated Intersil Template page 1 - Updated Related Literature by changing titles to match released application notes Added standard Reference to MIN and MAX columns and Note to Electrical Specifications and Serial Timing Spec Tables: "Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design." page 4 - Updated ordering information by naming Evaluation boards to match Intrepid. CHANGED I2C to SPI as follows: page 22 first paragraph and 2nd Note paragraph under "Additional Equalization Modes Available with the Serial Interface" section from "…MegaQ through the I2C interface…" to "…MegaQ through the SPI interface…" page 23 "Under Lock Until Signal Loss" section 1st paragraph last sentence "…via the I2C interface." To: "…via the SPI interface." November 19, 2010 FN6739.1 Modified both "Typical Application" drawings on page 1 to reflect recommended new termination network. Modified Figures 45, 46, and 47 to reflect recommended new termination network. Modified text in "UTP Application Circuit" and "Coax Input Circuit" sections to mention changes to termination network. Added "Dual UTP/Coax Input Circuit" heading October 21, 2010 October 8, 2010 Added superscript TM to all MegaQ and trademark statement, pg 1. Added ±8kV ESD protection to the Features list Pg24, Register 0x04 of the Register Listing: Fixed Select and Value locations (were swapped for each pin). Last two rows should say "Invert", not "INVERT", EXCEPT for "Use the value of INVERT pin Pg25, address 0x05 of Register listing, 3:2 Noise filter row, change from: 00: No Noise Filtering 01: Min Noise Filtering 1X: Max Noise Filtering to: 00: No Noise Filtering 01: Min Noise Filtering 10 or 11: Max Noise Filtering Note: Noise Filtering is only available on the ISL59605 FN6739.0 Initial Release. Products Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks. Intersil's product families address power management and analog signal processing functions. Go to www.intersil.com/products for a complete list of Intersil product families. For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: ISL59601, ISL59602, ISL59603, ISL59604, ISL59605. To report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff FITs are available from our website at: http://rel.intersil.com/reports/sear 27 FN6739.2 September 5, 2012 ISL59601, ISL59602, ISL59603, ISL59604, ISL59605 Package Outline Drawing L20.4x4C 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 11/06 4X 4.00 2.0 16X 0.50 A B 16 6 PIN #1 INDEX AREA 20 6 PIN 1 INDEX AREA 1 4.00 15 2 .70 ± 0 . 15 11 (4X) 5 0.15 6 10 0.10 M C A B 4 20X 0.25 +0.05 / -0.07 20X 0.4 ± 0.10 TOP VIEW BOTTOM VIEW SEE DETAIL "X" 0.10 C 0 . 90 ± 0 . 1 C BASE PLANE ( 3. 8 TYP ) ( SEATING PLANE 0.08 C 2. 70 ) ( 20X 0 . 5 ) SIDE VIEW ( 20X 0 . 25 ) C 0 . 2 REF 5 ( 20X 0 . 6) 0 . 00 MIN. 0 . 05 MAX. DETAIL "X" TYPICAL RECOMMENDED LAND PATTERN NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension b applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 5. Tiebar shown (if present) is a non-functional feature. 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 indentifier may be either a mold or mark feature. 28 FN6739.2 September 5, 2012