Maxim MAX459CQH, MAX459CPL, MAX458CQH, MAX458CPL, MAX459EPL Datasheet

19-0258; Rev 2; 4/95

EVALUATION KIT MANUAL

FOLLOWS DATA SHEET

8x4 Video Crosspoint Switches with Buffers

_______________General Description

The MAX458/MAX459 are crosspoint switches with eight
input channels and four high-speed, buffered output
channels. The MAX458 output buffer is configured with a
gain of one, while the MAX459 buffer has a gain of two. In
each device, any one of eight input lines can be connect­ed to any of four output amplifiers. The output buffers are
capable of driving loads of 75Ω.

Data interface can be accomplished by either a 16-bit
serial or a 6-bit parallel connection. In the serial mode,
the MAX458/MAX459 are SPITM, QSPITM, and Microwire
compatible. In parallel mode, the MAX458/MAX459 are
compatible with most microprocessor buses. Three-state
amplifier output capability makes it possible to multiplex
MAX458/MAX459s to form larger switch networks. The
output buffers can be disabled individually or the entire
device can be shut down to conserve power.

________________________Applications

Video Test Equipment
Video Security Systems

____________________________Features

♦ 100MHz Unity-Gain Bandwidth
♦ 300V/µs Slew Rate
♦ Low 0.05° Differential Phase Error
♦ Low 0.01% Differential Gain Error
♦ Directly Drives 75Ω Cables
♦ Fast 60ns Switching Time
♦ High-Z Amplifier Output Capability
♦ Shutdown Capability
♦ 16-Bit Serial and 6-Bit Parallel Address Modes

TM

♦ 40-Pin DIP and 44-Pin PLCC Packages

______________Ordering Information

PART

MAX458CPL

MAX458CQH
MAX458EPL -40°C to +85°C
MAX459CPL
MAX459CQH
MAX459EPL -40°C to +85°C

TEMP. RANGE PIN-PACKAGE

0°C to +70°C
0°C to +70°C

0°C to +70°C 40 Plastic DIP
0°C to +70°C

Video Editing

_____________________Block Diagram

8 BUFFERED

INPUTS

IN0

75Ω

IN1

IN2

IN3

IN4

IN5

IN6

IN7

™

SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.

GND

75Ω

GND

75Ω

GND

75Ω

GND

75Ω

GND

75Ω

GND

75Ω

GND

75Ω

GND

(SPI™, QSPI™, MICROWIRE™ COMPATIBLE)

8 x 4

SWITCH ARRAY

SERIAL OR PARALLEL

DIGITAL INTERFACE

SERIAL/PARALLEL INTERFACE

MAX459

8 x 4

SWITCH

ARRAY

& CONTROL

OUTPUT DRIVERS

AV = 2

AV = 2

AV = 2

AV = 2

4 75Ω

GND

GND

GND

GND

75Ω

75Ω

75Ω

75Ω

OUT0

75Ω

OUT1

75Ω

OUT2

75Ω

OUT3

75Ω

_________________Pin Configurations

TOP VIEW

GND

IN0

GND

N.C.

MAX458
MAX459

21

22 2319

20

IN7

GND

DOUT

SHDN

PLCC

IN1

7

GND

8

IN2

9

10

GND

11

IN3

12

V

CC

13

IN4

14

V

EE

15

IN5

GND

16

IN6

17

DIP on last page.

N.C.

5

6

18

GND

40 Plastic DIP
44 PLCC
40 Plastic DIP

44 PLCC
40 Plastic DIP

DINCSSCLK

UPDATEWRCE

43

441234404142

25

26

24

D3D1D2A1D0

27

N.C.

MAX458/MAX459

39

GND

38

OUT0

37

GND

36

OUT1

35

V

CC

34

OUT2

33

V

EE

32

N.C.

31

OUT3

30

GND

29

A0

28

_______________________________________________________________

Maxim Integrated Products

Call toll free 1-800-998-8800 for free samples or literature.

1

8x4 Video Crosspoint Switches with Buffers

ABSOLUTE MAXIMUM RATINGS

Total Supply Voltage (VCCto VEE).........................................12V

Positive Supply Voltage (VCCto GND).....................................6V

Negative Supply Voltage (VEEto GND)...................................6V

Analog Input/Output Voltage ...........(VCC+ 0.3V) to (VEE- 0.3V)

Digital Input Voltage...................................(VCC+ 0.3V) to -0.3V

Duration of Output Short Circuit to GND (Note 1)......Continuous

Continuous Power Dissipation

Plastic DIP (derate 17mW/°C above +70°C) ..............1333mW

PLCC (derate 13mW/°C above +70°C) ......................1067mW

Note 1: Outputs may be shorted to any supply pin or ground as long as package power dissipation ratings are not exceeded.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VCC= +5V, VEE= -5V, -2V ≤ VIN≤ +2V, output load resistor (RL) = 150Ω, TA= T

MAX458/MAX459

Typical values are at T

STATIC SPECIFICATIONS

Input Offset Voltage

Input Offset Voltage Match

On Input Bias Current
On Input Resistance
Input Capacitance

DC Voltage Gain Accuracy

Output Voltage Swing
Enabled Output Resistance

Disabled Output Resistance
Disabled Output Capacitance
Positive Power-Supply Current

Negative Power-Supply Current
Positive Supply Current in

Shutdown
Negative Supply Current in

Shutdown
Logic Input High Voltage
Logic Input Low Voltage

= +25°C.)

A

V

OS

OS

IN

IN
IN

OUT

R

OUT

R

OUT

OUT

I

CC

I

EE

IH
IL

Any channel
VIN= 0V (Note 2)

VS= ±4.75V to ±5.25V dB50 60PSRRPower-Supply Rejection Ratio
VIN= 0V, input programmed to one output
Input programmed to one output
Input channel on or off

MAX458 (Note 3)

MAX459 (Note 4)

VIN= 1kHz sine wave
VIN= 10MHz sine wave
MAX458
MAX459

VIN= 0V,
all amplifiers enabled

VIN= 0V,
all amplifiers enabled

(Note 5)
(Note 5)

Operating Temperature Ranges

MAX45_C_ _ ........................................................0°C to +70°C

MAX45_E_ _......................................................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range.............................-65°C to +160°C

Lead Temperature (soldering, 10sec).............................+300°C

to T

MIN

, unless otherwise noted.

MAX

CONDITIONS

TA= +25°C
TA= T

MIN

TA= +25°C
TA= T

MIN

TA= +25°C
TA= T

MIN

to T

to T

to T

MAX

MAX

MAX

515

20

0.1 0.5

1.0

0.1 1.0

2.0

0.05

4.0

0.70 1.0

TA= +25°C
TA= T

MIN

TA= +25°C
TA= T

MIN

to T

to T

MAX

MAX

60 75 85
50 100
50 65 75
40 90

UNITSMIN TYP MAXSYMBOLPARAMETER

V-2 +2Input Voltage Range
mV
mV310∆V

µA±1 ±5I

MΩ0.50 5.0R

pF7C

%

V±2 ±3V

Ω

MΩ0.25 1.0

kΩ
pF12C

mA

mA

mA15 26

mA712

V2.0V

V0.8V

2 _______________________________________________________________________________________

8x4 Video Crosspoint Switches with Buffers

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +5V, VEE= -5V, -2V ≤ VIN≤ +2V, output load resistor (RL) = 150Ω, TA= T

Typical values are at T

Logic Input High Current
Logic Input Low Current
Logic Output High Voltage
Logic Output Low Voltage

DYNAMIC SPECIFICATIONS

Input Noise Density
Settling Time
Amplifier Disable Time
Amplifier Enable Time
Channel Switching Time
Channel Switching Propagation Delay

Note 2: Defined as the DC offset shift when switching between input channels for a given output.
Note 3: Voltage Gain Accuracy for MAX458 calculated as (V

Note 4: Voltage Gain Accuracy for MAX459 calculated as (VOUT/2 - VIN) @ (VIN = +1V) - (VOUT/2 - VIN) @ (VIN = -1V)
Note 5: All logic levels are guaranteed over the range of VS= ±4.75V to ±5.25V.

Note 6: Differential phase and gain measured with a 40 IRE (285.7mV), 3.58MHz sine wave superimposed on a linear ramp of 0 IRE

Note 7: For MAX458, step input from +2V to 0V; for MAX459, step input from +1V to 0V. All unused channels grounded and all
Note 8: Test input channel programmed to an output and grounded through a 75Ω resistor. Adjacent input is programmed to an
Note 9: Same as Note 6 above, except driven input and output are not adjacent to test input/output.

Note 10: All inputs but the test input are driven by a 10MHz 4Vp-p sine wave. All outputs except the test output are connected to driven inputs.
Note 11: Same as Note 9 above, except with test channel programmed off.

to 100 IRE (714.3mV). “The IRE scale is a linear scale for measuring, in arbitrary IRE units, the relative amplitudes of the var­ious components of a television signal” (from the “Television Engineering Handbook”, edited by K. Blair Benson, McGraw
Hill). This system defines 100 IRE as reference white, 0 IRE as the blanking level, and -40 IRE as the sync peak. The equip­ment used for the test signal generated 714.3mV (100 IRE) as reference white and -285.7mV (-40 IRE) as sync. The modu­lation used was 285.7mV (40 IRE), which conforms to the EIA color signal standards.

unused amplifiers disabled.
adjacent output and driven by a 10MHz, 4Vp-p sine wave.

= +25°C.)

A

IH

IL
OH
OL

DGDifferential Gain Error (Note 6)

DGDifferential Phase Error (Note 6)

SRSlew Rate

BWBandwidth (-3dB)

S

AOFF

AON
CSW
CPD

(Note 3)
(Note 3)
I

= 400µA (Note 5)

SOURCE

I

= 1.6mA (Note 5)

SINK

MAX458
MAX459
MAX458
MAX459

MAX458

MAX459
MAX458, RL= 75Ω

f = 10kHz

n

To 0.1% of final value (Note 7)

See

Typical Operating Characteristics

(Note 8)
(Note 9)
(Note 10)
(Note 11)

OUT - VIN) @ (VIN = +2V) - (VOUT - VIN) @ (VIN = -2V)

——————————––————————————4—V————————————————————

———————————————————————2—V——————————————————————

CONDITIONS

to T

MIN

MAX

Positive transition
Negative transition
Positive transition
Negative transition

, unless otherwise noted.

0.01

0.13

0.05

0.14
200
150
300
250
100

90MAX459, RL= 150Ω

100Switching Transient Glitch

UNITSMIN TYP MAXSYMBOLPARAMETER

µA10I
µA10I

V4.0V
V0.5V

%

degrees

V/µs

MHz

nV/√Hz20e

ns40t
ns100t
ns120t
ns60t
ns50t

mV

p-p

dB-65Adjacent Channel Crosstalk
dB-65Non-Adjacent Channel Crosstalk
dB-55All-Hostile Crosstalk
dB-60All-Hostile Off Isolation

MAX458/MAX459

_______________________________________________________________________________________ 3

8x4 Video Crosspoint Switches with Buffers

TIMING CHARACTERISTICS (Note 12)

(VCC= +5V, VEE= -5V, -2V ≤ VIN≤ +2V, output load resistor (RL) = 150Ω, TA= T

CONDITIONS

PARALLEL-MODE TIMING (see Figure 1)

Address to –W—R–Fall Setup Time
Address to –W—R–Rise Hold Time

–C—E–

Fall to –W—R–Fall Setup Time

–C—E–

Rise to –W—R–Rise Hold Time

–W—R–

Pulse Width Low
Data to –W—R–Rise Setup Time
Data to –W—R–Rise Hold Time

–W—R–

Rise to –U—P—D—A—T—E–Fall Setup Time
–U—P—D—A—T—E–

MAX458/MAX459

Pulse Width Low

–U—P—D—A—T—E–

Rise to –W—R–Fall Setup Time

ADS
ADH

CES

CEH

WR
DS
DH

WRS

UP

UPS

SERIAL-MODE TIMING (see Figure 6)

SCLK to –C—S–Fall
–C—S–

Fall to SCLK Rise
SCLK Pulse Width High
SCLK Pulse Width Low
DIN to SCLK Rise Setup Time
DIN to SCLK Rise Hold Time
SCLK Fall to DOUT
SCLK Rise to –C—S–Rise

–C—S–

Rise to SCLK Rise
–C—S–

Pulse Width High

CSO

CSS

CH

CL
DS
DH
DO

CSH

CS1

CSW

Note 12: Timing Characteristics are guaranteed by design.

MIN

to T

, unless otherwise noted.)

MAX

UNITSMIN MAXSYMBOLPARAMETER

ns20t
ns0t
ns0t
ns0t
ns40t
ns50t
ns0t
ns0t
ns40t
ns25t

ns0t
ns35t
ns50t
ns30t
ns50t
ns0t
ns200t
ns30t
ns20t
ns100t

4 _______________________________________________________________________________________

8x4 Video Crosspoint Switches with Buffers

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

POWER SUPPLY CURRENT

vs. TEMPERATURE

100

80

60

CURRENT (mA)

40

20

-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)

CROSSTALK vs. FREQUENCY

40

0

-40

-80

AMPLITUDE (dB)

-120

I

CC

I

EE

6
4
2

MAX458/459 Fg TOC1

0

-2

-4

-6

AMPLITUDE (dB)

0.1 1 10 100 250

OUTPUT IMPEDANCE vs. FREQUENCY

MAX458/459 Fg TOC7

10

1

0.1

OUTPUT IMPEDANCE (Ω)

MAX458

GAIN vs. FREQUENCY

GAIN

PHASE

FREQUENCY (MHz)

6

MAX458/459 Fg TOC4

PHASE (DEGREES)

4

2
0
36

AMPLITUDE (dB)

72
108
144
180

UPDATE

MAX458/459 Fg TOC6

D0 & D2

GND

MAX459

GAIN vs. FREQUENCY

GAIN

PHASE

0.1 1 10 100 250
FREQUENCY (MHz)

CHANNEL SWITCH TRANSIENT

D1

OUT

MAX458/459 Fg TOC5

00
36
72
108
144
180



IN2IN5IN2

MAX458/MAX459

PHASE (DEGREES)

10V/div

(digital)

20mV/div

(analog)

0.01

0.1 10
FREQUENCY (MHz)

LARGE-SIGNAL PULSE RESPONSE

5V

2V/div

GND

1V/div



-15V

1 100



MAX458

25ns/div

+200mV

INPUT

-200mV

+100mV

OUTPUT

-100mV

MAX458/459 Fg TOC2

1 10 100

FREQUENCY (MHz)

MAX458

SMALL-SIGNAL PULSE RESPONSE

10ns/div

MAX458/459 Fg TOC8

+200mV

INPUT

-200mV

+200mV

OUTPUT

-200mV

100ns/div

MAX459

SMALL-SIGNAL PULSE RESPONSE

10ns/div

_______________________________________________________________________________________

MAX458/459 Fg TOC3

MAX458/459 Fg TOC9

INPUT

OUTPUT

5