ISL59603-Coax-EVZ_技术文档

MegaQ™: An Automatic Composite Video Equalizer,

Fully-Adaptive to 1 Mile (1600m)

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

The ISL59601, ISL59602, ISL59603, ISL59604, and

ISL59605 (the “MegaQ™” product family) are single-channel

Features

• ISL59605 Equalizes Up to 1 Mile (1600m) of Cat 5/6 and Up

to 6000 Feet (1800m) of RG-59

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).

• Fully Automatic, Stand-Alone Operation - No User

Adjustment Required

• ±8kV ESD Protection on All Inputs

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

• 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

• Compensates for ±3dB Source Variation (in Addition to

Cable Losses)

2V

into two source-terminated 75Ω loads (AC-coupled or

P-P

• Optional Serial Interface Adds Additional Functionality

• 5MHz -3dB Bandwidth

DC-coupled).

• Works with Single-Ended or Differential Inputs

• Output Drives Up to Two 150Ω Video Loads

Related Literature

• AN1780 “ISL59605-Catx-EVZ Evaluation Board Operation”

(Stand-Alone Evaluation Board)

Applications

• Surveillance Video

• Video Distribution

• AN1776 “ISL59603-Coax-EVZ Evaluation Board Operation”

(Stand-Alone Evaluation Board)

• AN1775 “ISL59605-SPI-EVALZ Evaluation Board (with Serial

Interface) Operation” (Evaluation Board with USB Serial

Interface)

Typical Application

NTSC, PAL, OR

Application Circuit for Cat x Cable

MONOCHROME CAMERA/

VIDEO SOURCE

PASSIVE

1.0µF

ISL59601

ISL59602

ISL59603

ISL59604

ISL59605

75.0

IN+

BALUN

OUT

CFB

50

1k

300

0.047µF

GND

IN-

1.0µF

UP TO 1 MILE OF

CAT-5/6 CABLE

1500pF

TV/DVR

V_CC

Application Circuit for Coaxial Cable

0.1µF

NTSC, PAL, OR

MONOCHROME CAMERA/

VIDEO SOURCE

10k

1.0µF

ISL59601

IN+

75.0

ISL59602

ISL59603

ISL59604

ISL59605

OUT

CFB

37.5

1k

300

0.047µF

GND

IN-

0 TO 6000 FEET OVER RG-59

COPPER-CORE COAXIAL CABLE

1.0µF

1500pF

TV/DVR

0.1µF

September 5, 2012

FN6739.2

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1

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

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

(20 LD QFN)

TOP VIEW

20 19 18 17 16

GND

V

REF

1

2

3

4

5

15

14

13

12

11

V

GND

DD1

IN+

THERMAL

PAD

(SOLDER TO GND)

VIDEO OUT

CFB

GND

IN-

V

DD2

6

7

8

9

10

Block Diagram

CLAMP AND

IN+

IN-

DIFFERENTIAL TO

SINGLE-ENDED

CONVERTER

VIDEO OUT

CFB

AMP

EQUALIZER

LPF

V

REF

GEN

DIGITAL INTERFACE

FN6739.2

September 5, 2012

2

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Pin Descriptions

PIN NUMBER

PIN NAME

DESCRIPTION

INPUTS

3

5

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.

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.

OUTPUTS

13

DIGITAL I/O

7

VIDEO OUT

Single-ended video output. The internal AGC sets this level to 2V

P-P

for a nominal 1V (pre-cable) video source.

P-P

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

16

LOCKED

FREEZE

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.

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

SCK

SD

Digital Input. Serial Interface Enable. This pin should be tied to ground when not in use.

Digital Input. Serial Interface Clock Signal. This pin should be tied to ground when not in use.

Digital I/O. Serial Interface Data Signal. This pin should be tied to ground when not in use.

19

20

POWER

2

V

+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.

DD1

FN6739.2

September 5, 2012

3

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Pin Descriptions(Continued)

PIN NUMBER

PIN NAME

DESCRIPTION

11

15

V

+5V power supply for output amplifier. Bypass to ground with a 0.1µF capacitor.

DD2

V

Internally generated 2.5V reference. Bypass to ground with a low-ESR 0.47µF capacitor. Do not attach anything else

to this pin.

REF

1, 4, 6, 14, 17

THERMAL PAD

EP

GND

PAD

Ground

Solder the exposed thermal PAD to ground for best thermal and electrical performance.

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

2000 feet

3000 feet

4000 feet

5300 feet

-40 to +85

20 Ld QFN (4x4mm)

L20.4x4C

ISL59601IRZ-T7

ISL59601IRZ-T7A

ISL59602IRZ

596 01IRZ

596 02IRZ

596 03IRZ

596 04IRZ

596 05IRZ

L20.4x4C

ISL59602IRZ-T7

ISL59602IRZ-T7A

ISL59603IRZ

ISL59603IRZ-T7

ISL59603IRZ-T7A

ISL59604IRZ

ISL59604IRZ-T7

ISL59604IRZ-T7A

ISL59605IRZ

ISL59605IRZ-T7

ISL59605IRZ-T7A

ISL59605-Catx-EVZ

ISL59603-Coax-EVZ

ISL59605-SPI-EVALZ

NOTES:

Stand-alone (no USB I/O) evaluation board

Evaluation board with serial interface

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 Pb-

free 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.

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September 5, 2012

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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

FN6739.2

September 5, 2012

5

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Absolute Maximum Ratings (T = +25°C)

Thermal Information

A

Supply Voltage between V and GND . . . . . . . . . . . . . . . . . . . . . . . . 5.75V

Maximum Continuous Output Current. . . . . . . . . . . . . . . . . . . . . . . . . 50mA

Thermal Resistance (Typical)

20 Ld QFN Package (Notes 4, 5) . . . . . . . .

θ

_JA(°C/W)

40

θ

_JC(°C/W)

DD

3.7

Maximum Voltage on any Pin . . . . . . . . . . . . . . . . GND - 0.3V to V + 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

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

DD

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. θ is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech

JA

Brief TB379.

5. For θ , the “case temp” location is the center of the exposed metal pad on the package underside.

JC

Electrical Specifications

V

= V

= V = +5V, source video amplitude before any cable loss = 1V

cable type = Cat 5,

DD

DD1

DD2 P-P,

cable length = 0 feet, R = 150Ω (75Ω series + 75Ω load to ground), T = +25°C, exposed die plate = 0V, unless otherwise specified.

L

A

Max cable length = 1000 feet for ISL59601, 2000 feet for ISL59602, 3000 feet for ISL59603, 4000 feet for ISL59604, and 5300 feet for

ISL59605.

MIN

MAX

PARAMETER

SUPPLY

DESCRIPTION

CONDITIONS

(Note 6)

TYP

(Note 6)

UNIT

V

Operating Range

4.5

5.0

40

30

60

5.5

60

45

V

DD

I

Supply Current

mA

dB

S1

S2

DD1

DD2

PSRR

DC

Power Supply Rejection Ratio

AC PERFORMANCE

BW

DG

-3dB Bandwidth

Differential Gain

Full power

5

1

MHz

%

Cable length = max,

20IRE Sub Carrier on 100% ramp

DP

Differential Phase

Cable length = max,

20IRE Sub Carrier on 100% ramp

1

°

V

DC PERFORMANCE

V

Output Blanking/Backporch Level

Measured at VIDEO OUT pin

0.82

0.95

1.05

BL

INPUT CHARACTERISTICS

V

Minimum Correctable Peak-to-Peak

Signal Swing

Measured at the source-end of

cable, before cable losses

0.7

1.4

V

INDIFF_MIN

P-P

V

Maximum Correctable Peak-to-Peak

Signal Swing

Measured at the source-end of

cable, before cable losses

INDIFF_MAX

V

Min Common Mode Input Voltage

Max Common Mode Input Voltage

1

V

CM-MIN

4

CM-MAX

SNR

Signal-to-Noise Ratio,

NTC-7 weighted filter

EQ = 0 feet

-67

-65

-64

-61

-54

dB rms

EQ = 1,000 feet

EQ = 2,000 feet

EQ = 3,000 feet

EQ = 4,000 feet

EQ = 5,300 feet

FN6739.2

September 5, 2012

6

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Electrical Specifications

V

= V

= V = +5V, source video amplitude before any cable loss = 1V

cable type = Cat 5,

DD

DD1

DD2 P-P,

cable length = 0 feet, R = 150Ω (75Ω series + 75Ω load to ground), T = +25°C, exposed die plate = 0V, unless otherwise specified.

L

A

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)

MIN

MAX

PARAMETER

CMRR

DESCRIPTION

CONDITIONS

0 feet cable

(Note 6)

TYP

-50

-35

25

(Note 6)

UNIT

dB

Common-mode Rejection Ratio at

f

= 100kHz

IN

2,500 feet cable

dB

I

Input Clamp Current

µA

Clamp

OUTPUT CHARACTERISTICS

A

AGC Accuracy

Accuracy of sync tip amplitude

relative to 600mV

±0.5

dB

GC-ACC

I

Output Drive Current

40

mA

ns

OUT

t

Enable-to-Equalization On Time

Disable-to-Equalization Off Time

500

EN-EQ

ns

DIS-EQ

LOGIC CONTROL PINS

V

Logic High Level

Logic Low Level

Logic Input Current

2.0

V

IH

0.8

IL

I

EQ_DISABLE, FREEZE, SD, SCK,

SEN

±10

µA

LOGIC

INVERT, COLOR

±500

µA

Serial Timing

MIN

MAX

PARAMETER

DESCRIPTION

Serial Enable Deselect Time

Lead Time

CONDITIONS

(Note 6)

TYP

(Note 6)

UNIT

ns

t

f

10

CS

LEAD

SU

H

ns

SD, SCK Setup Time

SD, SEN, SCK Hold Time

SCK High Time

10

ns

10

ns

100

10

ns

WH

WL

RI

SCK Low Time

ns

SD, SEN, SCK Rise Time

SD, SEN, SCK Fall Time

Lag Time

ns

10

ns

FI

10

ns

LAG

V

SCK Rising Edge to SD Data Valid

SCK Frequency

Read Operation

10

5

ns

MHz

SCK

NOTE:

6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.

FN6739.2

September 5, 2012

7

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Serial Timing Diagram

t

CS

SEN

f

SCK

t

LAG

16

RI

11

LEAD

1

H

FI

WH

4

6

SCK

SD

2

3

5

7

8

9

10

12

13

14

15

t

V

SU

WL

A3

1

A6

A5

A4

A2

A1

A0

D7

D6

D5

D4

D3

D2

D1

D0

READ OPERATION

t

CS

SEN

f

SCK

t

RI

t

LAG

16

LEAD

1

t

WH

3

H

FI

SCK

SD

2

4

5

6

7

9

10

D6

11

12

D4

13

D3

14

15

D1

8

t

SU

WL

0

A6

A5

A4

A3

A2

A1

A0

D7

D5

D2

D0

WRITE OPERATION

A6:A0 = REGISTER ADDRESS, D7:D0 = DATA TO BE READ/WRITTEN

FN6739.2

September 5, 2012

8

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

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

FIGURE 4. MULTIBURST WAVEFORM AFTER 1000 FEET OF CAT 5

WITH ISL59601 (OR BETTER)

FN6739.2

September 5, 2012

9

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

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

FIGURE 8. MULTIBURST WAVEFORM AFTER 2000 FEET OF CAT 5

WITH ISL59602 (OR BETTER)

FN6739.2

September 5, 2012

10

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

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

FIGURE 12. MULTIBURST WAVEFORM AFTER 3000 FEET OF CAT 5

WITH ISL59603 (OR BETTER)

FN6739.2

September 5, 2012

11

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

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

FIGURE 16. MULTIBURST WAVEFORM AFTER 4000 FEET OF CAT 5

WITH ISL59604 (OR BETTER)

FN6739.2

September 5, 2012

12

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

10µs/DIV

FIGURE 19. MULTIBURST WAVEFORM AFTER 5200 FEET OF

UNCOMPENSATED CAT 5

FIGURE 20. MULTIBURST WAVEFORM AFTER 5200 FEET OF CAT 5

WITH ISL59605

FN6739.2

September 5, 2012

13

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

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

FIGURE 24. MULTIBURST WAVEFORM AFTER 1000 FEET OF RG-59

COAX WITH ISL59601 (OR BETTER)

FN6739.2

September 5, 2012

14

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

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

FIGURE 28. MULTIBURST WAVEFORM AFTER 2000 FEET OF RG-59

COAX WITH ISL59602 (OR BETTER)

FN6739.2

September 5, 2012

15

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

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

FIGURE 32. MULTIBURST WAVEFORM AFTER 3000 FEET OF RG-59

COAX WITH ISL59602 (OR BETTER)

FN6739.2

September 5, 2012

16

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

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

FIGURE 36. MULTIBURST WAVEFORM AFTER 4000 FEET OF RG-59

COAX WITH ISL59602 (OR BETTER)

FN6739.2

September 5, 2012

17

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

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

FIGURE 40. MULTIBURST WAVEFORM AFTER 5000 FEET OF RG-59

COAX WITH ISL59603 (OR BETTER)

FN6739.2

September 5, 2012

18

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

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

FIGURE 44. MULTIBURST WAVEFORM AFTER 6000 FEET OF RG-59

COAX WITH ISL59603 (OR BETTER)

FN6739.2

September 5, 2012

19

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Equalization for Various Cable Types

Functional Description

MegaQ™ Overview

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.

TABLE 1. CABLE TYPES AND LENGTHS

MAXIMUM

CABLE TYPE

LENGTH SUPPORTED

Copper-Core

CAT5/CAT5e

CAT6

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.

5300 feet

5600 feet

6000 feet

3000 feet

Coaxial - RG-59

CAT2/CAT3

(telephone wire)

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.

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

1500 feet

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.

Coaxial - RG-59 CCS

(Copper-Coated Steel Core)

*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

C8

C9

C7

0.1µF 4.7µF

0.1µF

V

_DD1

V

_DD2

C1

DIFFERENTIAL

VIDEO INPUT+

1.0µF

IN+

R6 75.0

VIDEO

OUT

CFB

R1

R2

49.9

5V

TVS

R3

1k

Z1

Z2

C5

0.047µF

300

GND

IN-

R5

C4

1500pF

DIFFERENTIAL

VIDEO INPUT-

ISL59601

ISL59602

ISL59603

ISL59604

ISL59605

1.0µF

C2

Internally

5V

TVS

Generated

V_REF

C6

0.47µF

TVS = Transient Voltage Suppressor

a.k.a. Transorb

EQ_DISABLE

COLOR

SEN

SCK

SD

Freezes EQ once

lock is achieved.

Tie FREEZE low if

not used.

SERIAL

INTERFACE

(OPTIONAL)

INVERT

LOCKED

FREEZE

GND

FIGURE 45. APPLICATION CIRCUIT FOR UTP CABLE

FN6739.2

September 5, 2012

20

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

inputs. The value of Cx should be determined by calculating how

Application Information

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.

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.

V_CC

C4

0.1µF

D1

10k

R4

UTP

IN+

COAX

1.0µF

C1

R1

IN+

300

R5

49.9

Z1

R3

MegaQ^TM

GND

IN-

5V

TVS

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.

1k

UTP

IN-

SW1A

R2

C2

1.0µF

5.6pF

Cx*

Z2

SW1B

5V

TVS

Close all switches for

Coax

C3

0.1µF

*optional

TVS = Transient Voltage Suppressor

a.k.a. Transorb

Coax Input Circuit

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.

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.

V_CC

C4

0.1µF

D1

Stand-Alone Operation and Configuration

10k R4

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.

COAX

1.0µF

IN+

C1

R1

37.5

Z1

5V

TVS

1k

MegaQ^TM

GND

IN-

R3

R2

C2

1.0µF

LOCK UNTIL RESET

Z2

5V

TVS

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.

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

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

21

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

CONTINUOUS UPDATE

COLOR

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.

13k

COLOR

DETECTION

LOGIC

SIGNAL

PROCESSING

ISL5960x

The Continuous Update mode is enabled whenever the FREEZE

pin is set to a logic low (grounded).

FIGURE 49. COLOR PIN STRUCTURE

Polarity Detection and Correction

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.

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.

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.

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.

Security Cameras

MegaQ™ is ideal for security camera installations.

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.

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.

INVERT

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

SIGNAL

DETECTION

PROCESSING

LOGIC

Additional Equalization Modes Available

With the Serial Interface

ISL5960x

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.

FIGURE 48. INVERT PIN STRUCTURE

The COLOR Pin

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.

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.

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.

FN6739.2

September 5, 2012

22

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.

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.

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.

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.

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.

TABLE 2. ADDRESS BYTE FORMAT

0 = Write

1 = Read

A6

A5

A4

A3

A2

A1

A0

(MSB)

(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.

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.

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

23

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Register Listing

REGISTER

ADDRESS

0x00

(DEFAULT VALUE)

BIT(S)

3:0

7:4

0

FUNCTION NAME

Device Revision

DESCRIPTION

0 = initial silicon, 1 = first revision, etc.

0x3

Device ID (0x31)

Device ID

0x01

Signal Status (N/A)

Signal Present

0: A signal is not present at the input

1: A signal is present at the input

1

2

DLL Locked

0: DLL is not locked

1: DLL is locked

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

4

Color Detected

Signal Overloaded

Settled

0: Signal is monochrome

1: Signal has a colorburst

0: Signal (if present) is within normal range

1: Signal appears to be overloaded

5

0: EQ is not settled, though DLL may be locked.

1: EQ has stabilized and equalization achieved.

0x02

Manual Length(0x00)

5:0

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.

FN6739.2

September 5, 2012

24

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Register Listing(Continued)

REGISTER

ADDRESS

0x03

(DEFAULT VALUE)

BIT(S)

5:0

FUNCTION NAME

Manual DC Gain

DESCRIPTION

0x00: Maximum DC Gain (+3dB)

Manual DC Gain (0x20)

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).

0x04

Pin Overrides (0x00)

0

1

Freeze Select

Freeze Value

0: Use value of FREEZE pin.

1: Use value in “Freeze Value” bit

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

3

Eq-Disable Select

Eq-Disable Value

0: Use value of EQ_DISABLE pin.

1: Use value in “Eq-Disable Value” bit

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

5

Color Select

Color Value

0: Use value of COLOR pin

1: Use value in “Color Value” bit

If Color Select = 1, then

0: Monochrome Mode

1: Color Mode

If Color Select = 0, then this bit is ignored.

6

7

Invert Select

Invert Value

0: Use value of INVERT pin.

1: Use value in “Invert Value” bit

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.

0x05

Equalization Control (0x00)

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

4

Noise Filter

Cable Type

00: No Noise Filtering

01: Min Noise Filtering

10 or 11: Max Noise Filtering

Note: Noise Filtering is only available on the ISL59605

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

25

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Power Dissipation

The maximum power dissipation allowed in a package is

determined according to Equation 1:

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.

T

– T

JMAX

AMAX

(EQ. 1)

---------------------------------------

PD

=

MAX

Θ

JA

Where:

T

= Maximum junction temperature

= Maximum ambient temperature

JMAX

T

AMAX

Θ

= Thermal resistance of the package

JA

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.

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

R

L

(EQ. 2)

------------

PD

= V × I

+ (V – V ) ×

OUT

MAX

S

SMAX

S

for sinking use Equation 3:

(EQ. 3)

PD

= V × I

+ (V

– V ) × I

OUT S LOAD

MAX

S

SMAX

FIGURE 50. PCB VIA PATTERN

Where:

V = Supply voltage

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.

S

I

= Maximum quiescent supply current

= Maximum output voltage of the application

= Load resistance tied to ground

SMAX

V

OUT

R

LOAD

I

= Load current

LOAD

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

FN6739.2

September 5, 2012

26

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

REVISION

CHANGE

August 6, 2012

February 4, 2011

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

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

October 8, 2010

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

FN6739.2

September 5, 2012

27

ISL59601, ISL59602, ISL59603, ISL59604, ISL59605

Package Outline Drawing

L20.4x4C

20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE

Rev 0, 11/06

4X

2.0

4.00

0.50

16X

A

6

B

16

20

PIN #1 INDEX AREA

6

PIN 1

INDEX AREA

1

15

2 .70 ± 0 . 15

11

5

(4X)

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"

C

0.10

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 )

( 20X 0 . 6)

5

C

0 . 2 REF

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.

Tiebar shown (if present) is a non-functional feature.

5.

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.

FN6739.2

September 5, 2012

28


型号：	ISL59603-Coax-EVZ
厂家：	Intersil
描述：	MegaQâ¢: An Automatic Composite Video Equalizer,Fully-Adaptive to 1 Mile (1600m)
文件：	总28页 (文件大小：2775K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ISL59603-Coax-EVZ [INTERSIL]

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