MAXIM MAX9675 User Manual

MAX9675

Video Crosspoint Switch 110MHz,

16 x 16 Programmable Gain

________________________________________________________________

Maxim Integrated Products

1

Typical Operating Circuit

Functional Diagram

19-4230; Rev 0; 7/08

SPI and QSPI are trademarks of Motorola, Inc.

General Description

The MAX9675 is a nonblocking 16 x 16 video cross­point switch with buffered inputs and outputs. The
device operates on ±5V analog supplies. Digital logic is
supplied separately from an independent +2.7V to +5V
supply. The MAX9675 inputs and outputs are buffered
with all outputs able to drive a standard 75Ω reverse­terminated video load.

The switching matrix and programmable gain are con­trolled through an SPI™/QSPI™-compatible 3-wire seri­al interface. The serial interface is designed to operate
in either of two modes to provide fast updates and ini­tialization. All outputs are held in the disabled state
during power-up to avoid signal conflicts in large
switching arrays.

The programmability and high level of integration make
the MAX9675 an ideal choice for nonblocking video
switch arrays in security, surveillance, and video­on-demand systems.

The MAX9675 is available in a 100-pin TQFP package
and specified over the extended -40°C to +85°C tem­perature range.

Applications

Security Systems
Video Routing
Video-on-Demand Systems

Features

o 16 x16 Nonblocking Matrix with Buffered Inputs

and Outputs

o Operates at ±5V Supply

o Individually Programmable Output Buffer Gain

(A

V

= +1V/V or +2V/V)

o High-Impedance Output Disable for Wired-OR

Connections

o 0.1dB Gain Flatness to 14MHz

o -3dB Bandwidth 110MHz

o -62dB Crosstalk, -110dB Isolation at 6MHz

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

Pin Configuration appears at end of data sheet.

+Denotes a lead-free/RoHS-compliant package.

PART TEMP RANGE PIN-PACKAGE

MAX9675ECQ+ -40°C to +85°C 100 TQFP

MAX9675

CAMERAS

IN0

IN1

IN15

MAX9675

OUT0

OUT1

OUT15

MONITOR

MONITOR

MONITOR

RESET

UPDATE

SCLK

IN0

IN1

IN2

IN15

DIN

CE

POWER-ON

RESET

DISABLE ALL OUTPUTS

SERIAL

INTERFACE

A0–A3 MODE

*AV = +1V/V OR +2V/V

SWITCH MATRIX

THERMAL

SHUTDOWN

MATRIX REGISTER

UPDATE REGISTER

16 x 16

256

DECODE LOGIC

LATCHES

96 BITS

16 BITS

16

AV*

AV*

AV*

AV*

16

OUT0

OUT1

OUT2

ENABLE/DISABLE

OUT15

V
V
AGND

DGND

DOUT

AOUT

CC

EE

V

DD

MAX9675

Video Crosspoint Switch 110MHz,
16 x 16 Programmable Gain

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V

(VCC= +5V, VEE= -5V, VDD= +5V, AGND = DGND = 0, VIN_ = 0, RL= 150Ω to AGND, and TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

A

= +25°C.) (Note 5)

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.

Analog Supply Voltage (VCC- VEE) .....................................+11V

Digital Supply Voltage (V

DD

- DGND) ...................................+6V

Analog Supplies to Analog Ground

(V

CC

- AGND) and (AGND - VEE) ......................................+6V

Analog Ground to Digital Ground .........................-0.3V to +0.3V

IN_ Voltage Range .......................... (V

CC

+ 0.3V) to (VEE- 0.3V)

OUT_ Short-Circuit Duration to AGND, V

CC

, or VEE......Indefinite

SCLK, CE, UPDATE, MODE, A_, DIN, DOUT,

RESET, AOUT.........................(V

DD

+ 0.3V) to (DGND - 0.3V)

Current into Any Analog Input Pin (IN_) ...........................±50mA

Current into Any Analog Output Pin (OUT_).....................±75mA

Continuous Power Dissipation (T

A

= +70°C)

100-Pin TQFP (derate 22.2mW/°C above +70°C).....1777mW

Operating Temperature Range ...........................-40°C to +85°C

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

Storage Temperature Range .............................-65°C to +150°C

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

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Operating Supply Voltage

Range

Logic-Supply Voltage Range

V

CC

V

EE

V

to

DD

DGND

-

Guaranteed by PSRR test 4.5 10.5 V

2.7 5.5 V

Gain (Note 1) A

Gain Matching
(Channel to Channel)

(V

+ 2.5V) < VIN_ < (VCC - 2.5V),

EE

= +1V/V, RL = 150Ω

A

V

(V

+ 2.5V) < VIN_ < (VCC - 2.5V),

EE

= +1V/V, RL = 10kΩ

A

V

(V

+ 3.75V) < VIN_ < (VCC - 3.75V),

EE

A

= +2V/V, RL = 150Ω

V

V

(V

+ 3.75V) < VIN_ < (VCC - 3.75V),

EE

A

= +2V/V, RL = 10kΩ

V

(V

+ 1V) < VIN_ < (VCC - 1.2V),

EE

A

= +1V/V, RL = 10kΩ

V

R

= 10kΩ 0.5 1.5

L

RL = 150Ω 0.5 2

1

1

2

2

1

V/V

%

MAX9675

Video Crosspoint Switch 110MHz,

16 x 16 Programmable Gain

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V (continued)

(VCC= +5V, VEE= -5V, VDD= +5V, AGND = DGND = 0, VIN_ = 0, RL= 150Ω to AGND, and TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

A

= +25°C.) (Note 5)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Temperature Coefficient of

Gain

Input Voltage Range V

Output Voltage Range V

Input Bias Current I
Input Resistance R

Output Offset Voltage V

TC

AV

_

IN

OUT

B

_ (VEE + 1V) < VIN_ < (VCC - 1.2V) 10 MΩ

IN

OFFSET

10 ppm/°C

V

A

= +1V/V

V

A

= +2V/V

V

R

= 10kΩ

L

R

= 150Ω

L

R

= 10kΩ

L

R

= 150Ω

L

R

= 10kΩ

L

R

= 150Ω

L

V

V

V

V

V

E E

+ 1

E E

2.5

E E

E E

3.75

E E

E E

2.5

4 11 µA

A

= +1V/V ±5 ±20

V

A

= +2V/V ±10 ±40

V

+

+

3

+

+

1

+

V

-

C C

1.2

V

-

C C

2.5

V

-

C C

3.1

V

-

C C

3.75

V

-

C C

1.2

V

-

C C

2.5

V

V

V

mV

Output Short-Circuit Current I

Enabled Output Impedance Z
Output Leakage Current,

Disable Mode

DC Power-Supply Rejection

Ratio

Quiescent Supply Current

Sinking or sourcing, R

(V

+ 1V) < VIN_ < (VCC - 1.2V) 0.2 Ω

EE

(V

+ 1V) < V

EE

OUT

I

OD

SC

PSRR 4.5V < (V

I

CC

I

EE

I

DD

R

= ∞

L

R

= ∞

L

4 8

= 1Ω ±40 mA

L

_ < (VCC - 1.2V) 0.004 1 µA

OUT

- VEE) < 10.5V 60 70 dB

CC

Outputs enabled,

T

= +25°C

A

100 150

Outputs enabled 175
Outputs disabled 55 75

Outputs enabled,

T

= +25°C

A

95 150

Outputs enabled 175
Outputs disabled 50 75

mA

MAX9675

Video Crosspoint Switch 110MHz,
16 x 16 Programmable Gain

4 _______________________________________________________________________________________

LOGIC-LEVEL CHARACTERISTICS

(VCC= +5V, VEE= -5V, VDD= +2.7V to +5.5V, AGND = DGND = 0, VIN_ = 0, RL= 150Ω to AGND, and TA= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at T

A

= +25°C.) (Notes 2, 5)

AC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V

(VCC= +5V, VEE= -5V, VDD= +5V, AGND = DGND = 0, VIN_ = 0, RL= 150Ω to AGND, and TA= +25°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input-Voltage High Level

Input-Voltage Low Level

Input Current High Level

Input Current Low Level

Output-Voltage High Level

Output-Voltage Low Level

Output Current High Level

Output Current Low Level

V

IH

V

IL

I

IH

I

IL

V

OH

V

OL

I

OH

I

OL

VDD = +5V 3

VDD = +3V 2

V

= +5V 0.8

DD

VDD = +3V 0.6

V

> 2V

I

VI < 1V

I

SOURCE

I

SOURCE

I

= 1mA, VDD = +5V 0.1 0.3

SINK

I

= 1mA, VDD = +3V 0.1 0.3

SINK

VDD = +5V, VO = +4.9V 1 4

VDD = +3V, VO = +2.7V 1 8

VDD = +5V, VO = +0.1V 1 4

VDD = +3V, VO = +0.3V 1 8

Excluding RESET -1 +0.01 +1
RESET -30 -20
Excluding RESET -1 +0.01 +1
RESET -300 -235

= 1mA, VDD = +5V 4.7 4.9

= 1mA, VDD = +3V 2.7 2.9

V

V

µA

µA

V

V

mA

mA

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

A

= +1V/V 110

Small-Signal -3dB
Bandwidth

Medium-Signal -3dB
Bandwidth

Large-Signal -3dB
Bandwidth

Small-Signal 0.1dB
Bandwidth

Medium-Signal 0.1dB

Bandwidth

Large-Signal 0.1dB
Bandwidth

Slew Rate SR

BW

BW

BW

BW

BW

SS

MS

BW

LS

0.1dB-SS

0.1dB-MS

0.1dB-LS

V

= 20mV

OUT

V

_ = 200mV

OUT

V

_ = 2V

OUT

V

= 20mV

OUT

V

_ = 200mV

OUT

V

_ = 2V

OUT

V

_ = 2V step, AV = +1V/V 150

OUT

_ = 2V step, A

V

OUT

P-P

P-P

P-P

P-P

P-P

P-P

V

V

A

= +2V/V 78

V

A

= +1V/V 80

V

A

= +2V/V 75

V

A

= +1V/V 40

V

A

= +2V/V 50

V

A

= +1V/V 14

V

A

= +2V/V 11

V

A

= +1V/V 14

V

A

= +2V/V 11

V

A

= +1V/V 14

V

A

= +2V/V 11

V

= +2V/V 150

MHz

MHz

MHz

MHz

MHz

MHz

V/µs

MAX9675

Video Crosspoint Switch 110MHz,

16 x 16 Programmable Gain

_______________________________________________________________________________________ 5

AC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V (continued)

(VCC= +5V, VEE= -5V, VDD= +5V, AGND = DGND = 0, VIN_ = 0, RL= 150Ω to AGND, AV= +1V/V, and TA= +25°C, unless other­wise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Settling Time t

Switching Transient (Glitch)

(Note 3)

AC Power-Supply Rejection

Ratio

Differential Gain Error

(Note 4)

Differential Phase Error

(Note 4)

S 0.1%

V

= 0 to 2V step

OUT_

A

= +1V/V 50

V

AV = +2V/V 45

V

A

= +2V/V 60

V

f = 100kHz 70

f = 1MHz 68

R

= 1kΩ 0.002

L

RL = 150Ω 0.02

R

= 1kΩ 0.02

L

RL = 150Ω 0.12

ns

mV

dB

%

d eg r ees

A

= +1V/V 60

Crosstalk, All Hostile f = 6MHz -62 dB
Off-Isolation, Input to Output f = 6MHz -110 dB
Input Noise-Voltage Density e
Input Capacitance C
Disabled Output

Capacitance

Capacitive Load at 3dB

Output Peaking

Output Impedance Z

n

IN

Amplifier in disable mode 3 pF

30 pF

OUT

BW = 6MHz 73 µV

RMS

5 pF

f = 6MHz

Output enabled 3
Output disabled 4k

Ω

MAX9675

Video Crosspoint Switch 110MHz,
16 x 16 Programmable Gain

6 _______________________________________________________________________________________

SWITCHING CHARACTERISTICS

(VCC= +5V, VEE= -5V, VDD= +2.7V to +5.5V, DGND = AGND = 0, VIN_ = 0 for dual supplies, RL= 150Ω to AGND, CL= 100pF, A

V

= +1V/V, and TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 5)

Note 1: Associated output voltage may be determined by multiplying the input voltage by the specified gain (AV) and adding output

offset voltage.

Note 2: Logic-level characteristics apply to the following pins: DIN, DOUT, SCLK, CE, UPDATE, RESET, A3–A0, MODE, and AOUT.
Note 3: Switching transient settling time is guaranteed by the settling time (t

S

) specification. Switching transient is a result of updat-

ing the switch matrix.

Note 4: Input test signal: 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0 to 100IRE). IRE is a unit of

video-signal amplitude developed by the International Radio Engineers: 140IRE = 1.0V.

Note 5: All devices are 100% production tested at T

A

= +25°C. Specifications over temperature limits are guaranteed by design.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Delay: UPDATE to Video Out t

Delay: UPDATE to AOUT t

Delay: SCLK to DOUT Valid t

Delay: Output Disable t

Delay: Output Enable t

Setup: CE to SCLK t
Setup: DIN to SCLK t
Hold Time: SCLK to DIN t
Minimum High Time: SCLK t
Minimum Low Time: SCLK t
Minimum Low Time: UPDATE t

Setup Time: UPDATE to SCLK t

Hold Time: SCLK to UPDATE t

Setup Time: MODE to SCLK t

Hold Time: MODE to SCLK t

Minimum Low Time: RESET t
Delay: RESET t

PdUdVo VIN

PdUdAo

PdDo

PdHOe

PdLOe

SuCe

SuDi

HdDi

MnHCk

MnLCk

MnLUd

SuHUd

HdHUd

SuMd

HdMd

MnLRst

PdRst

= 0.5V step 200 450 ns

MODE = 0, time to AOUT = low after

UPDATE = low

Logic state change in DOUT on active

SCLK edge

V

= 0.5V, 1kΩ pulldown to AGND 300 800 ns

OUT

Output disabled, 1kΩ pulldown to AGND,

= 0.5V

V

IN

100 ns
100 ns
100 ns
100 ns
100 ns
100 ns

Rising edge of UPDATE to falling edge of

SCLK

Falling edge of SCLK to falling edge of

UPDATE

Minimum time from clock edge to MODE

with valid data clocking

Minimum time from clock edge to MODE

with valid data clocking

300 ns
10kΩ pulldown to AGND, 0.5V step 600 ns

30 200 ns

30 200 ns

200 800 ns

100 ns

100 ns

100 ns

100 ns

MAX9675

Video Crosspoint Switch 110MHz,

16 x 16 Programmable Gain

_______________________________________________________________________________________ 7

Symbol Definitions

Naming Conventions

• All parameters with time units are given a "t" desig­nation, with appropriate subscript modifiers.

• Propagation delays for clocked signals are from the
active edge of clock.

• Propagation delay for level-sensitive signals is from
input to output at the 50% point of a transition.

• Setup and hold times are measured from the 50%
point of signal transition to the 50% point of the
clocking signal transition.

• Setup time refers to any signal that must be stable
before the active clock edge, even if the signal is
not latched or clocked itself.

• Hold time refers to any signal that must be stable
during and after active clock edge, even if the sig­nal is not latched or clocked.

• Propagation delays to unobservable internal signals
are modified to setup and hold designations
applied to observable I/O signals.

SYMBOL TYPE DESCRIPTION

Ao Signal

Ce Signal Clock Enable (CE)

Ck Signal Clock (SCLK)

Di Signal Serial-Data In (DIN)

Do Signal

Md Signal MODE

Oe Signal Output Enable
Rst Signal Reset Input (RESET)
Ud Signal UPDATE

Vo Signal Video Out (OUT)

H Property

Hd Property Hold

L Property

Mn Property Minimum

Mx Property Maximum

Pd Property Propagation Delay

Su Property Setup

Tr Property Transition

W Property Width

Address Valid Flag
(AOUT)

Serial-Data Output
(DOUT)

High- or Low-to-High
Transition

Low- or High-to-Low
Transition

MAX9675

Video Crosspoint Switch 110MHz,
16 x 16 Programmable Gain

8 _______________________________________________________________________________________

Figure 1. Timing Diagram

TIMING PARAMETER DEFINITIONS
NAME DESCRIPTION

t

HdDi

t

MnHCk

t

MnLCk

t

MnLUd

t

SuHUd

Not Valid Setup Time: UPDATE to Clk with UPDATE Low
t

HdHUd

Not Valid Hold Time: Clk to UPDATE with UPDATE Low
t

PdDiDo

t

MnMd

t

MxTr

t

MnLRst

t

PdRstVo

TIMING PARAMETER DEFINITIONS
NAME DESCRIPTION

t

PdUdVo

t

PdUdAo

t

PdDo

t

PdHOeVo

t

PdLOeVo

t

SuCe

t

SuDi

Ce: CE

Ck: SCLK

Di: DIN

Do: DOUT

Ud: UPDATE

Vo: OUT_

Ao: AOUT

Rst: RESET

t

Oe: OUTPUT ENABLE

PdHOeVo

t

PdDo

t

MnHCk

DATA AND CONTROL TIMING

t

SuCe

t

t

MnLCk

t

HdUd

Hi-Z

t

PdUdAo

t

PdLOeVo

SuDi

t

MnLUd

t

PdUdVo

t

HdDi

t

WTrVo

t

SuUd

t

t

HdCe

PdRstVo

t

MnlRst

Hi-Z

Hold Time: Clock to Data In
Min High Time: Clk
Min Low Time: Clk
Min Low Time: Update
Setup Time: UPDATE to Clk with UPDATE High

Hold Time: Clk to UPDATE with UPDATE high

Asynchronous Delay: Data In to Data Out
Min Low Time: MODE
Max Rise Time: Clk, Update
Min Low Time: Reset
Delay: Reset to Video Output

Delay: Update to Video Out
Delay: UPDATE to Aout
Delay: Clk to Data Out
Delay: Output Enable to Video Output
(High: Disable)
Delay: Output Enable to Video Output
(Low: Enable)
Setup: Clock Enable to Clock
Setup Time: Data In to Clock

MAX9675

Video Crosspoint Switch 110MHz,

16 x 16 Programmable Gain

_______________________________________________________________________________________

9

Typical Operating Characteristics

(VCC= +5V and VEE= -5V, VDD= +5V, AGND = DGND = 0, V

IN_

= 0, RL= 150Ω to AGND, and TA = +25°C, unless otherwise

noted.)

3

-7

0.1 1 10 100 1000

LARGE-SIGNAL FREQUENCY RESPONSE

-5

MAX9675 toc01

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 150Ω

AV = +2V/V

AV = +1V/V

3

-7

0.1 1 10 100 1000

MEDIUM-SIGNAL FREQUENCY RESPONSE

-5

MAX9675 toc02

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 150Ω

AV = +1V/V

AV = +2V/V

3

-7

0.1 1 10 100 1000

SMALL-SIGNAL FREQUENCY RESPONSE

-5

MAX9675 toc03

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 150Ω

AV = +1V/V

AV = +2V/V

3

-7

0.1 1 10 100 1000

LARGE-SIGNAL FREQUENCY RESPONSE

-5

MAX9675 toc04

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 1kΩ

AV = +1V/V

AV = +2V/V

3

-7

0.1 1 10 100 1000

MEDIUM-SIGNAL FREQUENCY RESPONSE

-5

MAX9675 toc05

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 1kΩ

AV = +2V/V

AV = +1V/V

3

-7

0.1 1 10 100 1000

SMALL-SIGNAL FREQUENCY RESPONSE

-5

MAX9675 toc06

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 1kΩ

AV = +1V/V

AV = +2V/V

0.3

-0.7

0.1 1 10 100 1000

LARGE-SIGNAL GAIN FLATNESS

vs. FREQUENCY

-0.5

MAX9675 toc07

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-0.3

-0.1

0.1

0

-0.2

-0.4

-0.6

0.2

AV = +1V/V

AV = +2V/V

RL = 150Ω

0.3

-0.7

0.1 1 10 100 1000

LARGE-SIGNAL GAIN FLATNESS

vs. FREQUENCY

-0.5

MAX9675 toc08

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-0.3

-0.1

0.1

0

-0.2

-0.4

-0.6

0.2

AV = +1V/V

AV = +2V/V

RL = 1kΩ

3

-7

0.1 1 10 100 1000

LARGE-SIGNAL FREQUENCY RESPONSE

(A

V

= +1V/V)

-5

MAX9675 toc09

FREQUENCY (MHz)

NORMALIZED GAIN (dB)

-3

-1

1

0

-2

-4

-6

2

RL = 150Ω

CL = 30pF

CL = 15pF

CL = 45pF