MAX4357 Maxim, MAX4357 Datasheet
MAX4357
Available stocks
Related parts for MAX4357
MAX4357 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 MAX4357 is available in a 128-pin TQFP package and specified over an extended -40°C to +85°C tem- perature 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 DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V (continued +5V -5V +5V, AGND = DGND = noted. Typical values are +25°C.) A ...
Page 4
Nonblocking Video Crosspoint Switch with I/O Buffers DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ± +3V -3V +3V, AGND = DGND = noted. Typical values are ...
Page 5
Nonblocking Video Crosspoint Switch DC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±3V (continued +3V -3V +3V, AGND = DGND = noted. Typical values are +25°C.) A ...
Page 6
Nonblocking Video Crosspoint Switch with I/O Buffers DC ELECTRICAL CHARACTERISTICS—SINGLE SUPPLY +5V (continued +5V +5V, AGND = DGND = unless otherwise noted. Typical values are ...
Page 7
Nonblocking Video Crosspoint Switch LOGIC-LEVEL CHARACTERISTICS ( +4.5V to +10.5V EE unless otherwise noted. Typical values are at T MAX PARAMETER SYMBOL Input Voltage High Level Input Voltage ...
Page 8
Nonblocking Video Crosspoint Switch with I/O Buffers AC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±5V (continued +5V -5V +5V, AGND = DGND = PARAMETER SYMBOL Settling Time t S ...
Page 9
Nonblocking Video Crosspoint Switch AC ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES ±3V (continued +3V -3V +3V, AGND = DGND = otherwise noted.) PARAMETER SYMBOL Slew Rate Settling Time t ...
Page 10
Nonblocking Video Crosspoint Switch with I/O Buffers AC ELECTRICAL CHARACTERISTICS—SINGLE SUPPLY + +5V +5V, AGND = DGND = otherwise noted.) PARAMETER SYMBOL Small-Signal BW -3dB ...
Page 11
Nonblocking Video Crosspoint Switch SWITCHING CHARACTERISTICS (( +4.5V to +10.5V +2.7V to +5.5V, DGND = AGND = ply 150Ω to AGND ...
Page 12
... Reset Input (RESET) clocked. UPDATE • Propagation delays to unobservable internal signals are modified to setup and hold designations applied to observ- Video Out (OUT) able I/O signals. High or Low-to-High Transition Hold Low or High-to-Low Transition Minimum Maximum Propagation delay Setup Transition Width Naming Conventions ...
Page 13
Nonblocking Video Crosspoint Switch 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: OUT_ Ao: AOUT Rst: RESET t PdHOeVo ...
Page 14
Nonblocking Video Crosspoint Switch with I/O Buffers Typical Operating Characteristics—Dual Supplies ± +5V and V = -5V +5V, AGND = DGND = otherwise noted.) LARGE-SIGNAL FREQUENCY RESPONSE 3 ...
Page 15
Nonblocking Video Crosspoint Switch Typical Operating Characteristics—Dual Supplies ±5V (continued +5V and V = -5V +5V, AGND = DGND = otherwise noted.) LARGE-SIGNAL FREQUENCY RESPONSE (A = +2V/V) ...
Page 16
... V A INPUT VOLTAGE NOISE vs. FREQUENCY 1000 100 10 10 100 1k 10k 100k 100M FREQUENCY (Hz) MEDIUM-SIGNAL PULSE RESPONSE (A = +1V/V) V MAX4357 toc23 INPUT 100mV/div OUTPUT 100mV/div 20ns/div SWITCHING TIME (A = +2V/V) V MAX4357 toc26 V UPDATE 5V/div V OUT 1V/div 20ns/div 1M 10M MAX4357 toc24 MAX4357 toc27 ...
Page 17
... OFFSET VOLTAGE (mV) LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +1V/ MAX4357 toc33 INPUT 1V/div OUTPUT 1V/div 20ns/div MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +2V/ MAX4357 toc36 INPUT 50mV/div OUTPUT 100mV/div 20ns/div 6 ...
Page 18
Nonblocking Video Crosspoint Switch with I/O Buffers Typical Operating Characteristics—Dual Supplies ±5V (continued +5V and V = -5V +5V, AGND = DGND = otherwise noted.) GAIN vs. TEMPERATURE ...
Page 19
Nonblocking Video Crosspoint Switch Typical Operating Characteristics—Dual Supplies ± +3V and V = -3V +3V, AGND = DGND = otherwise noted.) LARGE-SIGNAL FREQUENCY RESPONSE 150Ω ...
Page 20
Nonblocking Video Crosspoint Switch with I/O Buffers Typical Operating Characteristics—Dual Supplies ±3V (continued +3V and V = -3V +3V, AGND = DGND = otherwise noted.) LARGE-SIGNAL FREQUENCY RESPONSE ...
Page 21
Nonblocking Video Crosspoint Switch Typical Operating Characteristics—Dual Supplies ±3V (continued +3V and V = -3V +3V, AGND = DGND = otherwise noted.) OFF-ISOLATION FREQUENCY VS. -40 -50 -60 ...
Page 22
... OFFSET VOLTAGE (mV) LARGE-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +1V/ MAX4357 toc72 INPUT 1V/div OUTPUT 1V/div 20ns/div MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF +2V/ MAX4357 toc75 INPUT 50mV/div OUTPUT 100mV/div 20ns/div ...
Page 23
Nonblocking Video Crosspoint Switch Typical Operating Characteristics—Dual Supplies ±3V (continued +3V and V = -3V +3V, AGND = DGND = otherwise noted.) GAIN TEMPERATURE VS. 0.20 0.15 0.10 ...
Page 24
Nonblocking Video Crosspoint Switch with I/O Buffers Typical Operating Characteristics—Single Supply + +5V and +5V, AGND = DGND = otherwise noted.) LARGE-SIGNAL FREQUENCY RESPONSE 3 ...
Page 25
... V A DISTORTION vs. FREQUENCY 0 -10 -20 2nd HARMONIC -30 -40 3rd HARMONIC -50 -60 -70 -80 -90 -100 100k 1M 10M 100M FREQUENCY (Hz) OFF-ISOLATION vs. FREQUENCY -40 -50 -60 -70 -80 -90 -100 -110 -120 100k 1M 10M 100M FREQUENCY (Hz) LARGE-SIGNAL PULSE RESPONSE MAX4357 toc95 INPUT 1V/div OUTPUT 1V/div 20ns/div 1G 25 ...
Page 26
... MAX4357 toc97 UPDATE 5V/div V OUT 20ns/div OFFSET VOLTAGE HISTOGRAM 250 200 150 100 50 0 -20 -18 0 -16 -14 -12 - OFFSET VOLTAGE (mV) DIFFERENTIAL GAIN AND PHASE (R = 1kΩ) L MAX4357 toc101 0.04 0.03 0.02 0.01 0 -0. 100 0 0.10 0.08 0.06 0.04 0.02 0 -0. 100 IRE ...
Page 27
... I/O Buffers = +1V/V, and T = +25°C, unless V A MEDIUM-SIGNAL PULSE RESPONSE WITH CAPACITIVE LOAD (C = 30pF) L MAX4357 toc103 20ns/div RESET DELAY vs. RESET CAPACITANCE 1p 10p 100p 1n 10n 100n 1μ 10μ 100μ C (F) RESET 27 ...
Page 28
Nonblocking Video Crosspoint Switch with I/O Buffers PIN NAME 1, 69, 73, 77, 81, V 85, 89, 93 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, ...
Page 29
... Complete Matrix Mode (Mode 1) or Individual Output Address Mode (Mode 0). The signal path of the MAX4357 is from the buffered inputs (IN0–IN31), through the switching matrix, buffered by the output amplifiers, and presented at the outputs (OUT0–OUT15) ( Functional Diagram ). The other functional blocks are the serial interface and con- trol logic ...
Page 30
... Note: "X" = Don’t Care The MAX4357 offers 32 analog input channels. Each input is buffered before the crosspoint matrix switch, allowing one input to cross-connect outputs. The input buffers are voltage feedback amplifiers with high-input impedance and low-input bias current. This allows the use of very simple input clamp circuits ...
Page 31
... In a large matrix consisting of many MAX4357s, all the devices can be programmed by sending a single bit stream equal 112 bits where n is the number of MAX4357 devices on the bus. The first 112-bit data word programs the last MAX4357 in line (see Matrix Programming section). ...
Page 32
... RESET pulldown is deasserted, and output buffers remain disabled until the device is programmed again. Building Large Video-Switching Systems The MAX4357 can be easily used to create larger switching matrices. The number of ICs required to implement the matrix is a function of the number of input channels, the number of outputs required, and whether the array needs to be nonblocking ...
Page 33
... IC devices can be placed in a disabled, or high-imped- ance-output state. This disable state of the output buffers is designed for a maximum impedance vs. fre- quency while maintaining a low-output capacitance. These characteristics minimize the adverse loading effects from the disabled outputs. Larger arrays are constructed by extending this connection technique to more devices ...
Page 34
Nonblocking Video Crosspoint Switch with I/O Buffers t MnLCk SCLK t t SuDi HdDi DIN t UPDATE PdDo DOUT SCLK EXAMPLE OF 7-BIT SERIAL CONTROL WORD FOR OUTPUT CONTROL DIN OUTPUT (i) ENABLED +1V/V, V ...
Page 35
Nonblocking Video Crosspoint Switch Table 3. Chip Address Programming for 16-Bit Control Word (Mode 0: Individual Output Address Mode) IC ADDRESS BIT A3 (MSB ...
Page 36
... Crosstalk and Board Routing Issues 16 MAX4357 Improper signal routing causes performance problems. OUT The MAX4357 has a typical crosstalk rejection of -62dB at 6MHz. A bad PC board layout degrades the crosstalk rejection by 20dB or more. To achieve the OUTPUTS (16–31) best crosstalk performance: 1. Place ground isolation between long critical signal PC board trace runs ...
Page 37
... In addition to crosstalk, another key issue of concern is isolation. Isolation is the rejection of undesirable feed- through from input to output with the output disabled. The MAX4357 achieves a -110dB isolation at 6MHz by selecting the pinout configuration such that the inputs ______________________________________________________________________________________ Table 6. Input Selection Programming ...
Page 38
... Input Address 2 1 Input Address 1 0 (LSB) Input Address 0 Power-Supply Bypassing The MAX4357 operates from a single +5V or dual ±3V to ±5V supplies. For single-supply operation, connect all V pins to ground and bypass all power-supply EE pins with a 0.1µF capacitor to ground. For dual-supply systems, bypass all supply pins to ground with 0.1µF capacitors ...
Page 39
... To implement a complete video matrix P-P switching system capable of gain = +2V/V while oper- ating with a +5V single supply, combine the MAX4357 crosspoint switch with Maxim’s low-cost, high-perfor- mance video amplifiers optimized for single +5V supply operation (Figure 10). The MAX4450 single and ______________________________________________________________________________________ ...
Page 40
... Nonblocking Video Crosspoint Switch with I/O Buffers +5V V IN0 IN1 IN31 MAX4357 AGND Figure 10. Typical Single +5V Supply Application Chip Information PROCESS: BiCMOS 40 ______________________________________________________________________________________ +5V CC 1Vp-p 2Vp-p OUT0 U2 OUT1 75 220 F OUT15 500 500 U2 = MAX4450 OR 1/4 MAX4383 V EE For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “ ...
Page 41
... IN23 25 AGND 26 IN24 27 AGND 28 IN25 29 AGND 30 IN26 31 AGND 32 IN27 33 AGND AGND 36 IN28 37 AGND 38 ______________________________________________________________________________________ with I/O Buffers MAX4357 TQFP Pin Configuration 102 AGND 101 N.C. 100 AGND OUT0 OUT1 OUT2 OUT3 ...
Page 42
... 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. 42 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...