Intersil Corporation HA4201 Datasheet

HA4201

Data Sheet September 1998 File Number 3680.4

480MHz, 1 x 1 Video Crosspoint
Switch with Tally Output

The HA4201 is a very wide bandwidth 1 x 1 crosspoint
switch ideal for professional video switching, HDTV,
computer monitor routing, and other high performance
applications. The circuit features very low power dissipation
(105mW Enabled, 1mW Disabled), excellentdifferential gain
and phase, and very high off isolation. When disabled, the
output is switched to a high impedance state, making the
HA4201 ideal for routing matrix equipment.

The HA4201 requires no external current source, and
features fast switching and symmetric slew rates. The tally
output is an open collector PNP transistor to V

CC

, and is
activated whenever EN = 1 to provide an indication of
crosspoint selection.

For applications which don’t require a Tally output, please
refer to the HA4600 data sheet.

Pinout

HA4201

(SOIC)

TOP VIEW

Features

• Low Power Dissipation . . . . . . . . . . . . . . . . . . . . . 105mW

• Symmetrical Slew Rates . . . . . . . . . . . . . . . . . . 1700V/µs

• 0.1dB Gain Flatness. . . . . . . . . . . . . . . . . . . . . . .250MHz

• Off Isolation (100MHz) . . . . . . . . . . . . . . . . . . . . . . . 85dB

• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01%

• Differential Phase. . . . . . . . . . . . . . . . . . . . 0.01 Degrees

• High ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . >1800V

• TTL Compatible Enable Input

• Open Collector Tally Output

• Improved Replacement for GX4201

Applications

• Professional Video Switching and Routing

• Video Multiplexers

• HDTV

• Computer Graphics

• RF Switching and Routing

EN

V+

OUT

1

2

V-

3

4

8

7

6

5

Truth Table

EN OUT TALLY

0 High Z Off
1 Active On

GND

IN

NC

TALLY

• PCM Data Routing

Ordering Information

PART NUMBER

(BRAND)

HA4201CB
(H4201CB)

HA4201CB96
(H4201CB)

TEMP.

RANGE (oC) PACKAGE

0 to 70 8 Ld SOIC M8.15

0 to 70 8 Ld SOIC Tape

PKG.

NO.

M8.15

and Reel

1

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

1-888-INTERSIL or 321-724-7143

| Copyright © Intersil Corporation 1999

HA4201

Absolute Maximum Ratings Thermal Information

Voltage Between V+ and V-. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V

Digital Input Current (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . ±25mA

Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA

ESD Rating

Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . 1800V

SUPPLY

Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTES:

1. θJA is measured with the component mounted on an evaluation PC board in free air.

2. If an input signal is applied before the supplies are powered up, the input current must be limited to this maximum value.

Thermal Resistance (Typical, Note 1) θJA (oC/W)

SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Maximum Junction Temperature (Die) . . . . . . . . . . . . . . . . . . . 175oC

Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC

Maximum Storage Temperature Range. . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(SOIC - Lead Tips Only)

Electrical Specifications V

PARAMETER TEST CONDITIONS

DC SUPPLY CHARACTERISTICS

Supply Voltage Full ±4.5 ±5.0 ±5.5 V
Supply Current (V

ANALOG DC CHARACTERISTICS

Output Voltage Swing without Clipping V

Output Current Full 15 20 - mA
Input Bias Current Full - 30 50 µA
Output Offset Voltage 25 -10 - 10 mV
Output Offset Voltage Drift (Note 3) Full - 25 50 µV/oC

SWITCHING CHARACTERISTICS

Turn-On Time 25 - 160 - ns
Turn-Off Time 25 - 320 - ns

DIGITAL DC CHARACTERISTICS

Input Logic High Voltage Full 2 - - V
Input Logic Low Voltage Full - - 0.8 V
EN Input Current VEN= 0 to 4V Full -2 - 2 µA
Tally Output High Voltage IOH= 1mA Full 4.7 4.8 - V
Tally Off Leakage Current V

AC CHARACTERISTICS

Insertion Loss 1V

-3dB Bandwidth RS=82Ω, CL= 10pF - 480 - MHz

= 0V) VEN= 2.0V 25, 70 - 10.5 13 mA

OUT

= ±5V, RL = 10kΩ, VEN= 2.0V, Unless Otherwise Specified

SUPPLY

TEMP.

(oC) MIN TYP MAX UNITS

VEN= 2.0V 0 - - 14.5 mA
VEN= 0.8V 25, 70 - 100 115 µA
VEN= 0.8V 0 - 100 125 µA

= VIN±VIO±20mV 25, 70 ±2.7 ±2.8 - V

OUT

0 ±2.4 ±2.5 - V

= 0V, -5V Full -20 - 20 µA

TALLY

P-P

RS=43Ω, CL= 15pF 25 - 380 - MHz
RS=36Ω, CL= 21pF 25 - 370 - MHz

Full - 0.04 0.05 dB

2

HA4201

Electrical Specifications V

PARAMETER TEST CONDITIONS

±0.1dB Flat Bandwidth RS=82Ω, CL= 10pF 25 - 250 - MHz

Input Resistance Full 200 400 - kΩ
Input Capacitance Full - 1.0 - pF
Enabled Output Resistance Full - 15 - Ω
Disabled Output Capacitance VEN= 0.8V Full - 2.0 - pF
Differential Gain 4.43MHz, Note 3 25 - 0.01 0.02 %
Differential Phase 4.43MHz, Note 3 25 - 0.01 0.02 Degrees
Off Isolation 1V
Slew Rate

(1.5V

Total Harmonic Distortion (Note 3) Full - 0.01 0.1 %
Disabled Output Resistance Full - 12 - MΩ

NOTE:

, +SR/-SR)

P-P

3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.

= ±5V, RL = 10kΩ, VEN= 2.0V, Unless Otherwise Specified (Continued)

SUPPLY

TEMP.

(oC) MIN TYP MAX UNITS

RS=43Ω, CL= 15pF 25 - 175 - MHz
RS=36Ω, CL= 21pF 25 - 170 - MHz

, 100MHz, VEN= 0.8V, RL=10Ω Full - 85 - dB

P-P

RS=82Ω, CL= 10pF 25 - 1750/1770 - V/µs
RS=43Ω, CL= 15pF 25 - 1460/1360 - V/µs
RS=36Ω, CL= 21pF 25 - 1410/1360 - V/µs

AC Test Circuit

10kΩ

510Ω

-

+

75Ω

HFA1100

V

OUT

400Ω

500Ω

HA4201

V

IN

75Ω

NOTE: CL = CX + Test Fixture Capacitance.

R

S

C

X

PC Board Layout

The frequency response of this circuit depends greatly on
the care taken in designing the PC board. The use of low

inductance components such as chipresistors and chip
capacitors is strongly recommended, while a solid
ground plane is a must!

Attention should be given to decoupling the power supplies.
A large value (10µF) tantalum in parallel with a small value
(0.1µF) chip capacitor works well in most cases.

Keep input and output traces as short as possible, because
trace inductance and capacitance can easily become the
performance limiting items.

Application Information

General

The HA4201 is a 1 x 1 crosspoint switch that is ideal for the
matrix element in small, high input-to-output isolation
switchers and routers. It also excels as an input buffer for
routers with a large number of outputs (i.e. each input must
connect to a large number of outputs) and delivers
performance superior tomostvideo amplifiers at a fractionof
the cost. As an input buffer, the HA4201’s low input
capacitance and high input resistance provide excellent
video terminations when used with an external 75Ω resistor.
This crosspoint contains no feedback or gain setting
resistors, so the output is a true high impedance load when
the IC is disabled (EN = 0).

Frequency Response

Most applications utilizing the HA4201 require a series
output resistor,R
capacitance, C
as C

increases (as shown in the Electrical Specification

L

table), so give careful consideration to component
placement to minimize trace length. As an example, -3dB
bandwidth decreases to 160MHz for C
In big matrix configurations where C
frequency response is obtained by cascading two levels of
crosspoints in the case of multiplexed outputs (see Figure 2),
or distributing the load between two drivers if C
bussing and subsequent stage input capacitance.

, to tune the response for the specific load

S

, driven. Bandwidth and slew rate degrade

L

= 100pF, RS=0Ω.

L

is large, better

L

is due to

L

3