HA4404

HA4404B July 1998 330MHz, 4 x 1 Video Crosspoint Switch with Tally Outputs Description The HA4404B is a very wide bandwidth 4 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, 4mW Disabled), excellent differential gain and phase, and very high off isolation. When disabled, the output is switched to a high impedance state, making the HA4404B ideal for routing matrix equipment. The HA4404B requires no external current source, and features fast switching and symmetric slew rates. The tally outputs are open collector PNP transistors to V+ to provide an indication of crosspoint selection. For a 4 x 1 crosspoint without Tally outputs or with synchronous control signals, please refer to the HA4314B and HA4344B Data Sheets, respectively. Features • Low Power Dissipation . . . . . . . . . . . . . . . . . . . 105mW • Symmetrical Slew Rates . . . . . . . . . . . . . . . . . 1250V/µs • 0.1dB Gain Flatness. . . . . . . . . . . . . . . . . . . . . . 165MHz • -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . 330MHz • Off Isolation (100MHz) . . . . . . . . . . . . . . . . . . . . . . 70dB • Crosstalk Rejection (30MHz). . . . . . . . . . . . . . . . . 80dB • Differential Gain and Phase . . . . . 0.01%/0.01 Degrees • High ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . >2000V • TTL Compatible Control Inputs • Open Collector Tally Outputs • Improved Replacement for GX4404 Applications • Professional Video Switching and Routing • HDTV • Computer Graphics • RF Switching and Routing Ordering Information PART NUMBER HA4404BCB HA4404BCB96 TEMP. RANGE (oC) 0 to 70 0 to 70 PACKAGE 16 Ld SOIC 16 Ld SOIC Tape and Reel PKG. NO. M16.15 M16.15 Pinout HA4404B (SOIC) TOP VIEW IN0 1 GND 2 IN1 3 T1 4 T2 5 IN2 6 GND 7 IN3 8 16 T0 15 V+ 14 A0 Functional Diagram EN0 IN0 A0 A1 CS 13 A1 EN3 12 CS 11 OUT 10 V9 T3 T3 IN3 DECODE EN1 IN1 IN2 OUT V+ T2 V+ V+ T0 V+ T1 EN2 TRUTH TABLE ACTIVE TALLY OUTPUT T0 T1 T2 T3 None, All High - Z CS 0 0 0 0 1 A1 0 0 1 1 X A0 0 1 0 1 X OUT IN0 IN1 IN2 IN3 High - Z CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 File Number 3678.5 5 HA4404B Absolute Maximum Ratings Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSUPPLY Digital Input Current (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . ±25mA Analog Input Current (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . ±5mA Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA ESD Rating Human Body Model (Per MIL-STD-883 Method 3015.7) . . 2000V Thermal Information Thermal Resistance (Typical, Note 1) θJA (oC/W) SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 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) 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: 5. θJA is measured with the component mounted on an evaluation PC board in free air. 6. If an input signal is applied before the supplies are powered up, the input current must be limited to these maximum values. Electrical Specifications PARAMETER VSUPPLY = ±5V, RL = 10kΩ, VCS = 0.8V, Unless Otherwise Specified TEST CONDITIONS (NOTE 4) TEMP. (oC) MIN TYP MAX UNITS DC SUPPLY CHARACTERISTICS Supply Voltage Supply Current (VOUT = 0V) VCS = 0.8V VCS = 0.8V VCS = 2.0V VCS = 2.0V ANALOG DC CHARACTERISTICS Output Voltage Swing without Clipping VOUT = VIN ± VIO ± 20mV 25, 70 0 Output Current Input Bias Current Output Offset Voltage Output Offset Voltage Drift (Note 3) SWITCHING CHARACTERISTICS Turn-On Time Turn-Off Time Output Glitch During Switching DIGITAL DC CHARACTERISTICS Input Logic Voltage High Low Input Current Tally Output High Voltage Tally Off Leakage Current AC CHARACTERISTICS Insertion Loss 1VP-P 25 Full Channel-to-Channel Insertion Loss Match Full 0.055 0.07 ±0.004 0.063 0.08 ±0.006 dB dB dB 0V to 4V IOH = 1mA VTALLY = 0V Full Full Full Full Full 2 -2 4.7 -20 4.8 0.8 2 20 V V µA V µA 25 25 25 160 320 ±10 ns ns mV Full Full Full Full ±2.7 ±2.4 15 -10 ±2.8 ±2.5 20 30 25 50 10 50 V V mA µA mV µV/oC Full 25, 70 0 25, 70 0 ±4.5 ±5.0 10.5 400 400 ±5.5 13 15.5 450 580 V mA mA µA µA 6 HA4404B Electrical Specifications PARAMETER -3dB Bandwidth VSUPPLY = ±5V, RL = 10kΩ, VCS = 0.8V, Unless Otherwise Specified (Continued) TEST CONDITIONS RS = 50Ω, CL = 11pF RS = 24Ω, CL = 19pF RS = 15Ω, CL = 34pF RS = 11Ω, CL = 49pF ±0.1dB Flat Bandwidth RS = 50Ω, CL = 11pF RS = 24Ω, CL = 19pF RS = 15Ω, CL = 34pF RS = 11Ω, CL = 49pF Input Resistance Input Capacitance Enabled Output Resistance Disabled Output Capacitance Differential Gain Differential Phase Off Isolation Crosstalk Rejection Slew Rate (1.5VP-P, +SR/-SR) VCS = 2.0V 4.43MHz, Note 3 4.43MHz, Note 3 1VP-P, 100MHz, VCS = 2.0V, RL = 10Ω 1VP-P, 30MHz RS = 50Ω, CL = 11pF RS = 24Ω, CL = 19pF RS = 15Ω, CL = 34pF RS = 11Ω, CL = 49pF Total Harmonic Distortion Disabled Output Resistance NOTES: 7. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation. 8. Units are 100% tested at 25oC; guaranteed, but not tested at 0oC and 70oC. 10MHz, RL = 1kΩ, Note 3 VCS = 2.0V (NOTE 4) TEMP. (oC) 25 25 25 25 25 25 25 25 Full Full Full Full 25 25 Full Full 25 25 25 25 Full Full MIN 200 TYP 330 290 210 170 165 130 137 100 400 1.5 15 2.5 0.01 0.01 70 80 1280/1260 1190/1170 960/930 810/790 0.01 12 MAX 0.02 0.02 0.1 UNITS MHz MHz MHz MHz MHz MHz MHz MHz kΩ pF Ω pF % Degrees dB dB V/µs V/µs V/µs V/µs % MΩ AC Test Circuit 500Ω 400Ω 510Ω 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 chip resistors 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. HA4404B VIN 75Ω CX RS 10kΩ 75Ω VOUT HFA1100 + NOTE: CL = CX + Test Fixture Capacitance. 7 HA4404B Application Information General The HA4404B is a 4 x 1 crosspoint switch that is ideal for the matrix element of high performance switchers and routers. This crosspoint’s low input capacitance and high input resistance provide excellent video terminations when used with an external 75Ω resistor. Nevertheless, if several HA4404B inputs are connected together, the use of an input buffer should be considered (see Figure 1). This crosspoint contains no feedback or gain setting resistors, so the output is a true high impedance load when the IC is disabled (CS = 1). Ground Connections All GND pins are connected to a common point on the die, so any one of them will suffice as the functional GND connection. For the best isolation and crosstalk rejection, however, all GND pins must connect to the GND plane. Frequency Response Most applications utilizing the HA4404B require a series output resistor, RS, to tune the response for the specific load capacitance, CL, driven. Bandwidth and slew rate degrade as CL increases (as shown in the Electrical Specification table), so give careful consideration to component placement to minimize trace length. In big matrix configurations where CL is large, better 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 CL is due to bussing and subsequent stage input capacitance. Control Signals CS - This is a TTL/CMOS compatible, active low Chip Select input. When driven high, CS forces the output to a true high impedance state and reduces the power dissipation by a factor of 25. The CS input has no on-chip pull-down resistor, so it must be connected to a logic low (recommend GND) if the enable function isn’t utilized. A0, A1 - These are binary coded, TTL/CMOS compatible address inputs that select which one of the four inputs connect to the crosspoint output. T0-T3 - The Tally outputs are open collector PNP transistors connected to V+. When CS = 0, the PNP transistor associated with the selected input is enabled and current is delivered to the load. When the crosspoint is disabled, or the channel is unselected, the Tally output(s) present a very high impedance to the external circuitry. Several Tally outputs may be wire OR’d together to generate complex control signals, as shown in the application circuits below. The Tally load may be terminated to GND or to V- as long as the continuous output current doesn’t exceed 3mA (6mA at 50% duty cycle, etc.). Switcher/Router Applications Figure 1 illustrates one possible implementation of a wideband, low power, 4 x 4 switcher/router utilizing the HA4404B for the switch matrix. A 4 x 4 switcher/router allows any of the four outputs to be driven by any one of the four inputs (e.g., each of the four inputs may connect to a different output, or an input may connect to multiple outputs). This application utilizes the HA4600 (video buffer with output disable) for the input buffer, the HA4404B as the switch matrix, and the HFA1112 (programmable gain buffer) as the gain of two output driver. Figure 2 details a 16 x 1 switcher (basically a 16:1 mux) which uses the HA4201 (1 x 1 crosspoint) and the HA4404B in a cascaded stage configuration to minimize capacitive loading at each output node, thus increasing system bandwidth. Power Up Considerations No signals should be applied to the analog or digital inputs before the power supplies are activated. Latch-up may occur if the inputs are driven at the time of power up. To prevent latch-up, the input currents during power up must not exceed the values listed in the Absolute Maximum Ratings. Intersil’s Crosspoint Family Intersil offers a variety of 4 x 1 and 1 x 1 crosspoint switches. In addition to the HA4404B, the 4 x 1 family includes the HA4314 and HA4344. The HA4314 is a basic 14 lead device without Tally outputs. The HA4344 is a 16 lead crosspoint with synchronized control lines (A0, A1, CS). With synchronization, the control information for the next channel switch can be loaded into the crosspoint without affecting the current state. On a subsequent clock edge the stored control state effects the desired channel switch. The 1 x 1 family is comprised of the HA4201 and HA4600. They are essentially similar devices, but the HA4201 includes a Tally output. The 1 x 1s are useful as high performance video input buffers, or in a switch matrix requiring very high off isolation. 8 HA4404B INPUT BUFFERS EN SOURCE 0 75Ω OUT HA4600 RS IN0 T0 IN0 T0 IN0 T0 IN0 T0 SWITCH MATRIX 10kΩ HA4404B SOURCE 1 CS 75Ω RS SOURCE 2 75Ω EN SOURCE 3 75Ω OUT HA4600 RS OUTPUT BUFFERS + X2 (HFA1112 OR HFA1115) 75Ω OUT0 OUT IN3 T3 HA4404B CS HA4404B CS HA4404B CS RS OUT IN3 T3 OUT IN3 T3 RS OUT IN3 T3 RS 10kΩ +X2 75Ω OUT1 +X2 75Ω OUT2 +X2 75Ω OUT3 FIGURE 1. 4 X 4 SWITCHER/ROUTER APPLICATION SWITCHING MATRIX HA4404B SOURCE0 IN0 75Ω IN1 IN2 SOURCE3 75Ω IN3 T0 ISOLATION MUX OUTPUT BUFFER 10kΩ T3 RS OUT EN RS SOURCE4 IN0 75Ω IN1 IN2 OUT RS T0 T3 HA4201 SOURCE7 75Ω IN3 HFA1112 OR HFA1115 75Ω OUT X2 HA4404B SOURCE8 IN0 75Ω IN1 IN2 SOURCE11 75Ω IN3 T0 T3 RS OUT SOURCE12 IN0 75Ω IN1 IN2 SOURCE15 75Ω HA4404B IN3 OUT T0 T3 RS HA4201 EN 10kΩ RS + - FIGURE 2. 16 X 1 SWITCHER APPLICATION 9 HA4404B Typical Performance Curves 1.0 A1 (V) 0.75 OUTPUT VOLTAGE (V) 0.5 OUTPUT VOLTAGE (mV) 0.25 0 -0.25 -0.5 -0.75 -1.0 TIME (5ns/DIV.) TIME (200ns/DIV.) 2.4 1.6 0.8 0 250 125 0 IN1 = +250mV IN3 = 0V A0 = +3V VSUPPLY = ±5V, TA = 25oC, RL = 10kΩ, Unless Otherwise Specified FIGURE 3. LARGE SIGNAL PULSE RESPONSE FIGURE 4. CHANNEL-TO-CHANNEL SWITCHING RESPONSE 3 2 1 VIN = 1VP-P 0.4 0.3 0.2 GAIN (dB) 0.1 0 -0.1 -0.2 -0.3 -0.4 100 500 1 VIN = 1VP-P GAIN (dB) 0 -1 -2 -3 -4 -5 1 CL = 49pF CL = 34pF CL = 19pF CL = 11pF CL = 19pF CL = 11pF CL = 34pF CL = 49pF 10 FREQUENCY (MHz) 100 500 10 FREQUENCY (MHz) FIGURE 5. FREQUENCY RESPONSE FIGURE 6. GAIN FLATNESS -40 -50 CROSSTALK (dB) VIN = 1VP-P RL = 10kΩ -40 -50 OFF ISOLATION (dB) -60 -70 -80 -90 -100 -110 -120 VIN = 1VP-P RL = 10Ω -60 -70 -80 -90 -100 -110 -120 0.6 1 10 FREQUENCY (MHz) 100 200 SOIC PDIP (OBSOLETE) SOIC 1 10 FREQUENCY (MHz) 100 200 FIGURE 7. ALL HOSTILE CROSSTALK REJECTION FIGURE 8. ALL HOSTILE OFF ISOLATION 10 HA4404B Typical Performance Curves 0.2 TOTAL HARMONIC DISTORTION (%) VIN = 1VP-P RL = 1kΩ 0.15 INPUT CAPACITANCE (pF) VSUPPLY = ±5V, TA = 25oC, RL = 10kΩ, Unless Otherwise Specified (Continued) 4.5 4.2 3.9 3.6 3.3 3.0 2.7 CH. 0 2.4 2.1 1.8 CH. 1 CH. 2 1 10 FREQUENCY (MHz) 100 500 CH. 3 0.1 0.05 0 10 20 30 40 50 60 70 FREQUENCY (MHz) 80 90 100 1.5 FIGURE 9. TOTAL HARMONIC DISTORTION vs FREQUENCY FIGURE 10. INPUT CAPACITANCE vs FREQUENCY 11 HA4404B Die Characteristics DIE DIMENSIONS: 65 mils x 118 mils x 19 mils 1640µm x 3000µm x 483µm METALLIZATION: Type: Metal 1: AlCu (1%)/TiW Thickness: Metal 1: 6kÅ ±0.8kÅ Type: Metal 2: AlCu (1%) Thickness: Metal 2: 16kÅ ±1.1kÅ PASSIVATION: Type: Nitride Thickness: 4kÅ ±0.5kÅ TRANSISTOR COUNT: 200 SUBSTRATE POTENTIAL (Powered Up): V- Metallization Mask Layout HA4404B GND IN0 T0 V+ IN1 A0 T1 A1 NC CS T2 OUT IN2 NC GND NC IN3 GND T3 V- 12 HA4404B Small Outline Plastic Packages (SOIC) N INDEX AREA E -B1 2 3 SEATING PLANE -AD -CA h x 45o H 0.25(0.010) M BM M16.15 (JEDEC MS-012-AC ISSUE C) 16 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE INCHES SYMBOL A L MILLIMETERS MIN 1.35 0.10 0.33 0.19 9.80 3.80 MAX 1.75 0.25 0.51 0.25 10.00 4.00 NOTES 9 3 4 5 6 7 8o Rev. 0 12/93 MIN 0.0532 0.0040 0.013 0.0075 0.3859 0.1497 MAX 0.0688 0.0098 0.020 0.0098 0.3937 0.1574 A1 B C D α A1 0.10(0.004) C E e H h L N e B 0.25(0.010) M C AM BS 0.050 BSC 0.2284 0.0099 0.016 16 0o 8o 0.2440 0.0196 0.050 1.27 BSC 5.80 0.25 0.40 16 0o 6.20 0.50 1.27 NOTES: 1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of Publication Number 95. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010 inch) per side. 5. The chamfer on the body is optional. If it is not present, a visual index feature must be located within the crosshatched area. 6. “L” is the length of terminal for soldering to a substrate. 7. “N” is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch). 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. α 13