MAX4356 Maxim, MAX4356 Datasheet

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MAX4356

Manufacturer Part Number
MAX4356
Description
The MAX4356 is a 16 x 16 highly integrated video crosspoint switch matrix with input and output buffers and On-Screen Display (OSD) Insertion
Manufacturer
Maxim
Datasheet

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The MAX4356 is a 16
crosspoint switch matrix with input and output buffers
and On-Screen Display (OSD) Insertion. This device
operates from dual ±3V to ±5V supplies or from a sin-
gle +5V supply. Digital logic is supplied from an inde-
pendent single +2.7V to +5.5V supply. Individual
outputs can be switched between an input video signal
source and OSD information through an internal, dedi-
cated fast 2:1 mux (40ns switching times) located
before the output buffer. All inputs and outputs are
buffered, with all outputs able to drive standard 75
reverse-terminated video loads.
The switch matrix configuration and output buffer gain
are programmed via an SPI/QSPI
wire serial interface and initialized with a single update
signal. The unique serial interface operates in two
modes facilitating both fast updates and initialization.
On power-up, all outputs are initialized in the disabled
state to avoid output conflicts in large-array configura-
tions.
Superior flexibility, high integration, and space-saving
packaging make this nonblocking switch matrix ideal
for routing video signals in security and video-on-
demand systems.
The MAX4356 is available in a 128-pin TQFP package
and specified over an extended -40°C to 85°C temper-
ature range.
19-2113; Rev 0; 8/01
SPI and QSPI are trademarks of Motorola, Inc.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
with On-Screen Display Insertion and I/O Buffers
Security Systems
Video Routing
Video-on-Demand Systems
CAMERAS
16 x 16 Nonblocking Video Crosspoint Switch
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
OSDFILL15
OSDKEY15
OSDFILL0
OSDFILL1
OSDKEY0
OSDKEY1
IN15
IN0
IN1
General Description
MAX4356
16 highly integrated video
OUT0
OUT1
OUT15
Applications
-compatible, three-
MONITOR
MONITOR
MONITOR
Pin Configuration appears at end of data sheet.
RESET
UPDATE
16
and Outputs
Operates from ±3V, ±5V, or +5V Supplies
Individually Programmable Output Buffer Gain
(A
High-Impedance Output Disable for Wired-OR
Connections
Fast-Switching (40ns) 2:1 OSD Insertion Mux
0.1dB Gain Flatness to 14MHz
-62dB Crosstalk, -110dB Isolation at 6MHz
0.02%/0.12° Differential Gain/Differential Phase
Error
Low 195mW Power Consumption (0.76mW per
Point)
SCLK
IN15
MAX4356ECD
DIN
IN0
IN1
IN2
CE
V
= +1V/V or +2V/V)
PART
*A
16 Nonblocking Matrix with Buffered Inputs
V
POWER-ON
= +1V/V OR +2V/V
MAX4356
A0-A3 MODE
RESET
INTERFACE
SERIAL
DISABLE ALL OUTPUTS
SHUTDOWN
THERMAL
SWITCH MATRIX
MATRIX REGISTER
UPDATE REGISTER
DECODE LOGIC
LATCHES
16 x 16
96 BITS
16 BITS
TEMP. RANGE
-40 C to +85 C
Ordering Information
256 16
Functional Diagram
OSDFILL0
OSDKEY0
OSDFILL1
OSDKEY1
MUX
OSD
2:1
OSDFILL15
OSDKEY15
16
PIN-PACKAGE
128 TQFP
A
A
A
A
V
V
V
V
Features
*
*
*
*
OUT0
OUT1
OUT2
OUT15
V
V
AGND
DGND
DOUT
AOUT
V
CC
EE
DD
1

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MAX4356 Summary of contents

Page 1

... Superior flexibility, high integration, and space-saving packaging make this nonblocking switch matrix ideal for routing video signals in security and video-on- demand systems. The MAX4356 is available in a 128-pin TQFP package and specified over an extended -40°C to 85°C temper- ature range. Security Systems ...

Page 2

... DD 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. DC ELECTRICAL CHARACTERISTICS— ...

Page 3

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V (continued +5V -5V +5V, AGND = DGND = unless otherwise ...

Page 4

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ± +3V -3V +3V, AGND = DGND = unless otherwise noted. ...

Page 5

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±3V (continued +3V -3V +3V, AGND = DGND = unless otherwise ...

Page 6

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers DC ELECTRICAL CHARACTERISTICS—SINGLE SUPPLY +5V (continued +5V +5V, AGND = DGND = ...

Page 7

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers LOGIC-LEVEL CHARACTERISTICS ( +4.5V to +10.5V EE unless otherwise noted. Typical values are at ...

Page 8

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers AC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V (continued +5V -5V +5V, AGND = DGND = unless otherwise ...

Page 9

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers AC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±3V (continued +3V -3V +3V, AGND = DGND = unless otherwise ...

Page 10

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers AC ELECTRICAL CHARACTERISTICS—SINGLE SUPPLY + +5V +5V, AGND = DGND = +25°C, unless otherwise ...

Page 11

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers SWITCHING CHARACTERISTICS (( +4.5V to +10.5V +1.75V for single supply, R OSDFILL noted. Typical values ...

Page 12

... Video Out (OUT) nal is not latched or clocked. High- or Low-to-High • Propagation delays to unobservable internal signals transition are modified to setup and hold designations Hold applied to observable I/O signals. Low- or High-to-Low transition Minimum Maximum Propagation delay Setup Transition Width Naming Conventions ...

Page 13

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers DATA AND CONTROL TIMING Ce SuCe Ck: SCLK t MnHCk t MnLCk Di: DIN Do: DOUT t PdDo t Ud: UPDATE HdUd Hi-Z Vo: ...

Page 14

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers Typical Operating Characteristics—Dual Supplies ± +5V and V = -5V +5V, AGND = DGND = noted.) LARGE-SIGNAL ...

Page 15

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers Typical Operating Characteristics—Dual Supplies ±5V (continued +5V and V = -5V +5V, AGND = DGND = noted.) ...

Page 16

... V OUT 00mV/div 20ns/div = +25°C, unless otherwise A INPUT VOLTAGE NOISE vs. FREQUENCY 1000 100 1 10 100 1k 10k 100k 100M FREQUENCY (Hz) MEDIUM-SIGNAL PULSE RESPONSE (A = +1V/V) V INPUT 100mV/div OUTPUT 50mV/div 25ns/div SWITCHING TIME (A = +2V/ UPDATE 5V/div V OUT 1V/div 20ns/div 1M 10M MAX4356 toc24 MAX4356 toc27 ...

Page 17

... OFFSET VOLTAGE (mV) LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +1V/ MAX4356 toc33 INPUT 1V/div OUTPUT 0.5/Vdiv 25ns/div MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +2V/ MAX4356 toc36 INPUT 50mV/div OUTPUT 50mV/div 25ns/div 5 ...

Page 18

... SUPPLY CURRENT vs. TEMPERATURE -50 - 100 TEMPERATURE ( C) = +25°C, unless otherwise A RESET DELAY vs. C RESET 10p 100p 1n 10n 100n 1 10 100 C (F) RESET OSD SWITCHING 3.58MHz SIGNAL (A = +2V/V) V MAX4356 toc40 50ns/div ...

Page 19

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers Typical Operating Characteristics—Dual Supplies ± +3V and V = -3V +3V, AGND = DGND = noted.) LARGE-SIGNAL ...

Page 20

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers Typical Operating Characteristics—Dual Supplies ±3V (continued +3V and V = -3V +3V, AGND = DGND = noted.) ...

Page 21

... A INPUT VOLTAGE NOISE vs. FREQUENCY 1000 100 10 10 100 1k 10k 100M FREQUENCY (Hz) MEDIUM-SIGNAL PULSE RESPONSE (A = +1V/V) V MAX4356 toc64 INPUT 100mV/div OUTPUT 50mV/div 25ns/div SWITCHING TIME (A = +2V/V) V MAX4356 toc67 V UPDATE 3V/div V OUT 1V/div 20ns/div 100k 1M 10M MAX4356 toc65 MAX4356 toc68 21 ...

Page 22

... OFFSET VOLTAGE (mV) LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +1V/ MAX4356 toc74 INPUT 1V/div OUTPUT 500mV/div 25ns/div MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF 2V/ MAX4356 toc77 INPUT 50mV/div OUTPUT 50mV/div 25ns/div ...

Page 23

... MAX4356 toc80 A = +2V 100IRE 500mV/div 0IRE = +25°C, unless otherwise A RESET DELAY vs. C RESET 10 1 100m 10m 1m 100 10 1 100n 10n 1p 10p 100p 1n 10n 100n 1 10 100 C (F) RESET OSD SWITCHING 3.58MHz SIGNAL MAX4356 toc81 2V/V V OSDKEY0 3V/div V OUT0 50ns/div 23 ...

Page 24

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers Typical Operating Characteristics—Single Supply + +5V and +5V, AGND = DGND = erwise noted.) ...

Page 25

... V A DISTORTION vs. FREQUENCY 0 -10 -20 2ND HARMONIC -30 -40 -50 3RD HARMONIC -60 -70 -80 -90 -100 0 FREQUENCY (MHz) OFF ISOLATION vs. FREQUENCY -40 -50 -60 -70 -80 -90 -100 -110 -120 1G 100k 1M 10M FREQUENCY (Hz) LARGE-SIGNAL PULSE RESPONSE INPUT 1V/div OUTPUT 0.5V/div 25ns/div 1M 10M 10 100 100M 1G MAX4356 toc99 25 ...

Page 26

... OFFSET VOLTAGE HISTOGRAM MAX4356 toc102 250 200 150 100 50 0 -20 -18 -16 -14 -12 OFFSET VOLTAGE (mV) DIFFERENTIAL GAIN AND PHASE (R L 0.20 0.10 0.00 0.10 -0. 100 0.06 0.04 0.02 0.00 -0. 100 = +1V/V, and T = +25°C, unless oth MAX4356 toc101 - IRE ...

Page 27

... V OUT0 250mV/div 50ns/div = +1V/V, and T = +25°C, unless oth MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF) L MAX4356 toc107 25ns/div RESET DELAY vs. C RESET 1 1p 10p 100p 1n 10n 100n 1 10 100 C (F) RESET OSD SWITCHING 3.58MHz SIGNAL MAX4356 toc111 50ns/div 27 ...

Page 28

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers PIN NAME 1–4, 30–38, 103 N.C. No Connection. Not internally connected. Connect to AGND 11, 13, 15, 17, 19, 21, 23, IN0–IN15 Buffered ...

Page 29

... Outputs are configured individually to connect to any one of the 16 analog inputs, programmed to the desired gain (A high-impedance state. The MAX4356 offers 16 analog input channels. Each input is buffered before the crosspoint switch matrix, allowing one input to cross-connect outputs. The input buffers are voltage feedback amplifiers with Analog Outputs high input impedance and low-input bias current ...

Page 30

... Each OSD Insertion Mux is controlled through the cor- responding OSDKEY digital input to provide fast pixel switching. The MAX4356 has 256 individual T-switches making switch matrix . The switching matrix is 100% nonblocking, which means that any input may be rout any output. The switch matrix programming is output-referred ...

Page 31

... Complete Matrix Mode register is latched on the falling edge of UPDATE, and the outputs are immedi- ately updated. The Complete Matrix Mode (Mode = 1) is convenient to use to program the matrix at power-up large matrix consisting of many MAX4356 devices, all the devices can be programmed by sending a single-bit ADDRESS CHIP A0 ...

Page 32

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers 16-BIT INDIVIDUAL OUTPUT ADDRESS MODE: FIRST 2 BITS ARE DON'T CARE BITS, LAST 14 BITS CLOCKED INTO DIN WHEN MODE = 0 CREATE ADDRESS WORD; IC ...

Page 33

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers SCLK CE MODE SCLK CE MODE DIN Figure 3. Serial Interface Block Diagram Table 6. Input Selection Programming INPUT ADDRESS BIT B3 (MSB (LSB) ...

Page 34

Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers t MnLCk SCLK t t SuDi HdDi DIN UPDATE t PdDo DOUT SCLK EXAMPLE OF 6-BIT SERIAL CONTROL WORD FOR OUTPUT CONTROL DIN ...

Page 35

... Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers stream equal bits, where n is the number of MAX4356 devices on the bus. The first 96-bit data word programs the last MAX4356 in line (see Matrix Programming under Applications Information). On-Screen-Display Fast Mux The MAX4356 features an asynchronous dedicated 2:1 Mux for each output buffer amplifier ...

Page 36

... Another solution is to add a small- value inductor to the output. On-Screen Display Insertion The MAX4356 facilitates the insertion of on-screen graphics and characters by using the built-in fast 2:1 multiplexer associated with each of the 16 outputs (Functional Diagram). This mux switches in 40ns, much ...

Page 37

... Figure 9. Improved Implementation of On-Screen Display appropriate low-impedance components and locate them as close as possible to the IC. Avoid routing the inputs near the outputs. The MAX4356 operates from a single +5V or dual ±3V to ±5V supplies. For single-supply operation, connect all V EE pins with a 0.1µF capacitor to ground. For dual-supply systems, bypass all supply pins to ground with 0.1µ ...

Page 38

... To implement a complete video matrix switching system capable of gain = +2V/V while operat- ing with +5V single supply, combine the MAX4356 crosspoint switch with Maxim’s low-cost, high-perfor- mance video amplifiers optimized for single +5V supply operation (Figure 11) ...

Page 39

... A2 A1 MODE A1 A0 UPDATE A0 VIRTUAL SERIAL BUS (MODE 0: INDIVIDUAL OUTPUT ADDRESS MODE) + OUT0 P-P U2 OUT1 75 220 F OUT15 500 500 U2 = MAX4450 OR 1/4 MAX4383 V EE CHIP ADDRESS = 2 DIN DOUT MAX4356 SCLK MODE A1 UPDATE MONITOR 0 75 NEXT DEVICE 39 ...

Page 40

... A3 22 IN13 IN14 IN15 N.C. 30 N.C. 31 N.C. 32 N.C. 33 N.C. 34 N.C. 35 N.C. 36 N. ______________________________________________________________________________________ Pin Configuration MAX4356 AGND 102 AGND 101 AGND 100 OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 88 V ...

Page 41

... Nonblocking Video Crosspoint Switch with On-Screen Display Insertion and I/O Buffers Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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