National Semiconductor LMH6572 Technical data

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LMH6572 Triple 2:1 High Speed Video Multiplexer

August 2004

General Description

The LMH™6572 is a high performance analog mulitplexer optimized for professional grade video and other high fidelity high bandwidth analog applications. The LMH6572 provides a 290MHz bandwidth at 2 V MHz of .1 dB bandwidth and a 1500 V/µs slew rate make this part suitable for High Definition Television (HDTV) and High Resolution Multimedia Video applications.

The LMH6572 supports composite video applications with its

0.02% and 0.02˚ differential gain and phase errors for NTSC and PAL video signals while driving a single, back terminated 75Ω load. The LMH6572 can deliver 80 mA linear output current for driving multiple video load applications.

The LMH6572 has an internal gain of two for driving back terminated transmission lines at a net gain of one.

The LMH6572 is available in the SSOP package.

output signal levels. The 140

Connection Diagram

16-Pin SSOP

Features

n 350 MHz, 250 mV −3 dB bandwidth n 290 MHz, 2 V n 10 ns channel switching time n 90 dB channel to channel isolation n 0.02%, 0.02˚ diff. gain, phase n .1 dB gain flatness to 140 MHz n 1400 V/µs slew rate n Wide supply voltage range: 6V ( n −78 dB HD2 n −75 dB HD3

−3 dB bandwidth

10MHz

Applications

n RGB video router n Multi input video monitor n Fault tolerant data switch

Truth Table

SEL EN OUT

0 0 CH 1

1 0 CH 0

X 1 Disable

5 MHz

3V) to 12V (±6V)

Top View

20109605

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing

16-Pin SSOP

LMH™is a trademark of National Semiconductor Corporation.

LMH6572MQ

LMH6572MQX 2.5 Units Tape and Reel

LH6572MQ

95 Units/Rail

MQA16

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/

LMH6572

Distributors for availability and specifications.

ESD Tolerance (Note 4)

Soldering Information

Infrared or Convection (20 sec) 235˚C

Wave Soldering (10 sec) 260˚C

Operating Ratings (Note 1)

Human Body Model 2000V

Machine Model 200V

+−V−

Supply Voltage (V

(Note 3) 130 mA

OUT

IInput Voltage Range

) 13.2V

Maximum Junction Temperature +150˚C (Note 4)

Operating Temperature −40˚C to 85˚C

Supply Voltage Range 6V to 12V

Thermal Resistance

Package (θ

)(θJC)

16-Pin SSOP 125˚C/W 36˚C/W

Storage Temperature Range −65˚C to +150˚C

5V Electrical Characteristics

VS=±5V, RL= 100Ω, Unless otherwise specified.

Symbol Parameter Conditions(Note 2) Min Typ Max Units

Frequency Domain Performance

SSBW −3 dB Bandwidth V

LSBW –3 dB Bandwidth (Note 6) V

.1 dBBW . 1 dB Bandwidth V

DG Differential Gain R

DP Differential Phase R

= 0.25 V

OUT

=2V

OUT

= 0.25 V

OUT

= 150Ω, f=4.43 MHz 0.02 %

= 150Ω, f=4.43 MHz 0.02 deg

250 290 MHz

350 MHz

140 MHz

Time Domain Response

TRS Channel to Channel Switching Time Logic transition to 90% output 10 ns

Enable and Disable Times Logic transition to 90% or 10%

11 ns

output.

TRL Rise and Fall Time 2V Step 1.5 ns

TSS Settling Time to 0.05% 2V Step 17 ns

OS Overshoot 4V Step 5 %

SR Slew Rate(Note 6) 4V Step 1200 1400 V/µs

Distortion

HD2 2

HD3 3

IMD 3

Harmonic Distortion 2 VPP, 10 MHz −78 dBc

Harmonic Distortion 2 VPP, 10 MHz −75 dBc

Order Intermodulation Products 10 MHz, Two tones 2Vpp at output −80 dBc

Equivalent Input Noise

VN Voltage

ICN Current

1 MHz, Input Referred 5 nV

1 MHz, Input Referred 5 pA/

Static, DC Performance

GAIN Voltage Gain (Note 5) No Load 1.9 2.0 2.1 V/V

Gain Error(Note 5) No Load, channel to channel

0.3

0.5

0.7

Gain Error R

VIO Output Offset Voltage (Note 5) V

=50Ω 0.3 %

17.5

=0V 1

DVIO Average Drift 27 µV/˚C

IBN Input Bias Current (Notes 7, 5) V

= 0V −1.4

2.8

3.5

DIBN Average Drift 7 nA/˚C

PSRR Power Supply Rejection Ratio

(Note 5)

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DC, Input referred 50

54 dB

µA

5V Electrical Characteristics (Continued)

VS=±5V, RL= 100Ω, Unless otherwise specified.

Symbol Parameter Conditions(Note 2) Min Typ Max Units

ICC Supply Current (Note 5) No Load 20 23 25

28.5

Supply Current Disabled(Note 5) No Load 2.0 2.2

2.3

VIH Logic High Threshold(Note 5) Select & Enable Pins 2.0 V

VIL Logic Low Threshold (Note 5) Select & Enable Pins 0.8 V

IiL Logic Pin Input Current Low(Note 7) Logic Input = 0V −1

IiH Logic Pin Input Current High(Note7)Logic Input = 2.0V 112

150 200

100

210

2.5

µA

Miscellaneous Performance

RF Internal Feedback and Gain Set

resistor Values

RODIS Disabled Output Resistance Internal Feedback and Gain Set

resistors in series to ground.

650

620

800 940

1010

1.3 1.6 1.88

Ω

kΩ

RIN+ Input Resistance 100 kΩ

CIN Input Capacitance 0.9 pF

ROUT Output Resistance 0.26 Ω

VO Output Voltage Range No Load

VOL R

= 100Ω

CMIR Input Voltage Range

IO Linear Output Current (Notes 5, 7) V

= 0V, +70

3.83

3.80

3.52

3.5

3.9 V

3.53 V

2.5 V

80 mA

-40

ISC Short Circuit Current VIN=±2V, Output shorted to

230 mA

ground

XTLK Channel to Channel Crosstalk V

=2V

XTLK All Hostile Crosstalk In A, C. Out B, V

5 MHz −90 dBc

100 MHZ −54 dBc

=2V

−95 dBc

MHz

LMH6572

3.3V Electrical Characteristics

VS=±3.3V, RL= 100Ω; Unless otherwise specified.

Symbol Parameter Conditions(Note 2) Min Typ Max Units

Frequency Domain Performance

SSBW −3 dB Bandwidth V

LSBW −3 dB Bandwidth V

.1 dBBW .1 dB Bandwidth V

OUT

= 0.25 V

= 2.0 V

= 0.5 V

360 MHz

270 MHz

80 MHz

GFP Peaking DC to 200 MHz 0.3 dB

DG Differential Gain R

DP Differential Phase R

= 150Ω, f=4.43 MHz 0.02 %

= 150Ω, f=4.43 MHz 0.03 deg

Time Domain Response

TRS Rise and Fall Time 2V Step 2.0 ns

TSS Settling Time to 0.05% 2V Step 15 ns

OS Overshoot 2V Step 5 %

SR Slew Rate 2V Step 1000 V/µs

Distortion

HD2 2

Harmonic Distortion 2 VPP, 10MHz −70 dBc

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3.3V Electrical Characteristics (Continued)

VS=±3.3V, RL= 100Ω; Unless otherwise specified.

LMH6572

Symbol Parameter Conditions(Note 2) Min Typ Max Units

HD3 3

IMD 3

Harmonic Distortion 2 VPP, 10MHz −74 dBc

Order Intermodulation Products 10 MHz, Two tones 2Vpp at output −79 dBc

Static, DC Performance

GAIN Voltage Gain 2.0 V/V

VIO Output Offset Voltage V

=0V 1 mV

DVIO Average Drift 36 µV/˚C

IBN Input Bias Current (Note 7) V

=0V 2 µA

DIBN Average Drift 24 nA/˚C

PSRR Power Supply Rejection Ratio DC, Input Referred 54 dB

ICC Supply Current R

∞

20 mA

VIH Logic High Threshold Select & Enable Pins 1.3 V

VIL Logic Low Threshold Select & Enable Pins 0.4 V

Miscellaneous Performance

RIN+ Input Resistance 100 kΩ

CIN Input Capacitance 0.9 pF

ROUT Output Resistance 0.27 Ω

VO Output Voltage Range No Load

VOL R

= 100Ω

CMIR Input Voltage Range

IO Linear Output Current V

ISC Short Circuit Current V

=0V

=±1V, Output shorted to

2.5 V

2.2 V

1.2 V

60 mA

150 mA

ground

XTLK Channel to Channel Crosstalk 5 MHz −90 dBc

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications, see the Electrical Characteristics tables.

Note 2: Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that T See Applications Section for information on temperature de-rating of this device. Min/Max ratings are based on product testing, characterization and simulation. Individual parameters are tested as noted.

Note 3: The maximum output current (I more details. A short circuit condition should be limited to 5 seconds or less.

Note 4: Human Body model, 1.5 kΩ in series with 100 pF. Machine model, 0Ω In series with 200 pF

Note 5: Parameters guaranteed by electrical testing at 25˚ C.

Note 6: Parameters guaranteed by design.

Note 7: Positive Value is current into device.

. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self heating where T

J=TA

) is determined by device power dissipation limitations. See the Power Dissipation section of the Application Section for

OUT

TA.

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