HA4201 Data Sheet September 1998 File Number 3680.4 480MHz, 1 x 1 Video Crosspoint Switch with Tally Output Features The HA4201 is a very wide bandwidth 1 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, 1mW Disabled), excellent differential gain and phase, and very high off isolation. When disabled, the output is switched to a high impedance state, making the HA4201 ideal for routing matrix equipment. • Symmetrical Slew Rates . . . . . . . . . . . . . . . . . . 1700V/µs The HA4201 requires no external current source, and features fast switching and symmetric slew rates. The tally output is an open collector PNP transistor to VCC , and is activated whenever EN = 1 to provide an indication of crosspoint selection. • TTL Compatible Enable Input • Low Power Dissipation . . . . . . . . . . . . . . . . . . . . . 105mW For applications which don’t require a Tally output, please refer to the HA4600 data sheet. • 0.1dB Gain Flatness. . . . . . . . . . . . . . . . . . . . . . . 250MHz • Off Isolation (100MHz) . . . . . . . . . . . . . . . . . . . . . . . 85dB • Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01% • Differential Phase . . . . . . . . . . . . . . . . . . . . 0.01 Degrees • High ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . >1800V • Open Collector Tally Output • Improved Replacement for GX4201 Applications • Professional Video Switching and Routing • Video Multiplexers Pinout • HDTV HA4201 (SOIC) TOP VIEW • Computer Graphics • RF Switching and Routing EN 1 8 GND V- 2 7 IN V+ 3 6 NC OUT 4 • PCM Data Routing Ordering Information PART NUMBER (BRAND) TEMP. RANGE (oC) PACKAGE PKG. NO. 5 TALLY Truth Table EN OUT TALLY 0 High Z Off 1 Active On 1 HA4201CB (H4201CB) 0 to 70 8 Ld SOIC M8.15 HA4201CB96 (H4201CB) 0 to 70 8 Ld SOIC Tape and Reel M8.15 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 HA4201 Absolute Maximum Ratings Thermal Information Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSUPPLY Digital Input Current (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . ±25mA Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA ESD Rating Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . 1800V Thermal Resistance (Typical, Note 1) θJA (oC/W) SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 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: 1. θJA is measured with the component mounted on an evaluation PC board in free air. 2. If an input signal is applied before the supplies are powered up, the input current must be limited to this maximum value. Electrical Specifications VSUPPLY = ±5V, RL = 10kΩ, VEN = 2.0V, Unless Otherwise Specified TEMP. (oC) MIN TYP MAX UNITS Full ±4.5 ±5.0 ±5.5 V VEN = 2.0V 25, 70 - 10.5 13 mA VEN = 2.0V 0 - - 14.5 mA VEN = 0.8V 25, 70 - 100 115 µA VEN = 0.8V 0 - 100 125 µA 25, 70 ±2.7 ±2.8 - V 0 ±2.4 ±2.5 - V Output Current Full 15 20 - mA Input Bias Current Full - 30 50 µA Output Offset Voltage 25 -10 - 10 mV Output Offset Voltage Drift (Note 3) Full - 25 50 µV/oC Turn-On Time 25 - 160 - ns Turn-Off Time 25 - 320 - ns Input Logic High Voltage Full 2 - - V Input Logic Low Voltage Full - - 0.8 V PARAMETER TEST CONDITIONS DC SUPPLY CHARACTERISTICS Supply Voltage Supply Current (VOUT = 0V) ANALOG DC CHARACTERISTICS Output Voltage Swing without Clipping VOUT = VIN ± VIO ± 20mV SWITCHING CHARACTERISTICS DIGITAL DC CHARACTERISTICS EN Input Current VEN = 0 to 4V Full -2 - 2 µA Tally Output High Voltage IOH = 1mA Full 4.7 4.8 - V Tally Off Leakage Current VTALLY = 0V, -5V Full -20 - 20 µA Insertion Loss 1VP-P Full - 0.04 0.05 dB -3dB Bandwidth RS = 82Ω, CL = 10pF - 480 - MHz AC CHARACTERISTICS 2 RS = 43Ω, CL = 15pF 25 - 380 - MHz RS = 36Ω, CL = 21pF 25 - 370 - MHz HA4201 Electrical Specifications VSUPPLY = ±5V, RL = 10kΩ, VEN = 2.0V, Unless Otherwise Specified (Continued) TEMP. (oC) MIN TYP MAX UNITS RS = 82Ω, CL = 10pF 25 - 250 - MHz RS = 43Ω, CL = 15pF 25 - 175 - MHz RS = 36Ω, CL = 21pF 25 - 170 - MHz Input Resistance Full 200 400 - kΩ Input Capacitance Full - 1.0 - pF Enabled Output Resistance Full - 15 - Ω PARAMETER TEST CONDITIONS ±0.1dB Flat Bandwidth Disabled Output Capacitance VEN = 0.8V Full - 2.0 - pF Differential Gain 4.43MHz, Note 3 25 - 0.01 0.02 % Differential Phase 4.43MHz, Note 3 25 - 0.01 0.02 Degrees Off Isolation 1VP-P, 100MHz, VEN = 0.8V, RL = 10Ω Full - 85 - dB Slew Rate (1.5VP-P, +SR/-SR) RS = 82Ω, CL = 10pF 25 - 1750/1770 - V/µs RS = 43Ω, CL = 15pF 25 - 1460/1360 - V/µs RS = 36Ω, CL = 21pF 25 - 1410/1360 - V/µs Total Harmonic Distortion (Note 3) Full - 0.01 0.1 % Disabled Output Resistance Full - 12 - MΩ NOTE: 3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation. AC Test Circuit Application Information General 500Ω 510Ω 400Ω HA4201 RS - VIN 75Ω 75Ω VOUT + HFA1100 CX 10kΩ NOTE: CL = CX + Test Fixture Capacitance. 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. 3 The HA4201 is a 1 x 1 crosspoint switch that is ideal for the matrix element in small, high input-to-output isolation switchers and routers. It also excels as an input buffer for routers with a large number of outputs (i.e. each input must connect to a large number of outputs) and delivers performance superior to most video amplifiers at a fraction of the cost. As an input buffer, the HA4201’s low input capacitance and high input resistance provide excellent video terminations when used with an external 75Ω resistor. This crosspoint contains no feedback or gain setting resistors, so the output is a true high impedance load when the IC is disabled (EN = 0). Frequency Response Most applications utilizing the HA4201 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. As an example, -3dB bandwidth decreases to 160MHz for CL = 100pF, RS = 0Ω. 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. HA4201 Control Signals as the gain of two output driver. Figure 2 details a 16 x 1 switcher (basically a 16:1 mux) which uses the HA4201 in a cascaded stage configuration to minimize capacitive loading at each output node, thus increasing system bandwidth. EN - The ENABLE input is a TTL/CMOS compatible, active high input. When driven low this input forces the output to a true high impedance state and reduces the power dissipation by two orders of magnitude. The EN input has no on-chip pull-up resistor, so it must be connected to a logic high (recommend V+) if the enable function isn’t utilized. 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. Tally - The Tally output is an open collector PNP transistor connected to V+. When EN = 1, the PNP transistor is enabled and current is delivered to the load. When the crosspoint is disabled, the Tally output presents a very high impedance to the external circuitry. Several Tally outputs may be wire OR’d together to generate complex control signals, as shown with the HA4404 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.). Intersil’s Crosspoint Family Intersil offers a variety of 1 x 1 and 4 x 1 crosspoint switches. In addition to the HA4201, the 1 x 1 family includes the HA4600 which is an essentially similar device but without the Tally output. The 4 x 1 family is comprised of the HA4314, HA4404, and HA4344. The HA4314 is a 14 lead basic 4 x 1 crosspoint. The HA4404 is a 16 lead device with Tally outputs to indicate the selected channel. 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. Switcher/Router Applications Figure 1 illustrates one possible implementation of a wideband, low power, 4 x 4 switcher/router. 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 HA4201 for the input buffer, the HA4404 (4 x 1 crosspoint switch) as the switch matrix, and the HFA1112 (programmable gain buffer) INPUT BUFFERS EN SOURCE0 75Ω OUT SWITCH MATRIX 10kΩ RS HA4201 IN0 T0 IN0 CS SOURCE1 75Ω IN3 IN3 T0 CS HA4404 OUT RS T3 IN0 HA4404 OUT RS T0 CS HA4404 OUT 75Ω IN0 CS HA4404 SOURCE2 T0 OUT RS T3 IN3 RS T3 IN3 T3 EN SOURCE3 75Ω OUT HA4201 10kΩ RS + OUTPUT BUFFERS X2 (HFA1112 OR HFA1115) 75Ω - OUT0 + - - + X2 X2 75Ω 75Ω 75Ω OUT1 FIGURE 1. 4 x 4 SWITCHER/ROUTER APPLICATION 4 + X2 OUT2 - OUT3 HA4201 SWITCHING MATRIX ISOLATION MUX OUTPUT BUFFER IN0 SOURCE0 75Ω IN1 IN2 T0 IN3 SOURCE3 10kΩ 75Ω T3 RS OUT IN0 OUT 75Ω IN1 T0 SOURCE4 EN RS RS HA4201 IN2 T3 IN3 SOURCE7 HFA1112 OR HFA1115 75Ω 75Ω - HA4404 X2 IN0 SOURCE8 75Ω IN1 IN2 SOURCE11 T0 IN3 75Ω 10kΩ T3 RS EN OUT IN0 OUT 75Ω IN1 T0 SOURCE12 IN2 SOURCE15 RS RS HA4201 T3 IN3 75Ω HA4404 FIGURE 2. 16 x 1 SWITCHER APPLICATION 5 OUT + HA4201 VSUPPLY = ±5V, TA = 25oC, RL = 10kΩ, Unless Otherwise Specified 1.0 1.25 0.75 1.20 INPUT CAPACITANCE (pF) OUTPUT VOLTAGE (V) Typical Performance Curves 0.5 0.25 0 -0.25 -0.5 1.15 1.10 1.05 1.0 0.95 0.90 0.85 -0.75 0.80 -1.0 0.75 1 TIME (5ns/DIV.) FIGURE 3. LARGE SIGNAL PULSE RESPONSE 0.4 9 0.3 RS = 36Ω CL = 21pF -6 -0.1 -9 -0.3 -0.4 750 RS = 82Ω CL = 10pF 10 1 FREQUENCY (MHz) FIGURE 5. FREQUENCY RESPONSE FIGURE 6. GAIN FLATNESS VIN = 1VP-P RL = 10Ω -50 -60 -70 -80 -90 -100 -110 -120 -130 1 10 100 FREQUENCY (MHz) FIGURE 7. OFF ISOLATION 6 RS = 43Ω CL = 15pF 0 -0.2 10 100 FREQUENCY (MHz) 500 0.1 -12 1 RS = 36Ω CL = 21pF 0.2 GAIN (dB) 0 -3 OFF ISOLATION (dB) GAIN (dB) RS = 82Ω R = 43Ω CL = 10pF S CL = 15pF 3 100 FIGURE 4. INPUT CAPACITANCE vs FREQUENCY 12 6 10 FREQUENCY (MHz) 500 100 500 HA4201 Die Characteristics DIE DIMENSIONS: PASSIVATION: 51 mils x 36 mils x 19 mils 1290µm x 910µm x 483µm Type: Nitride Thickness: 4kÅ ±0.5kÅ METALLIZATION: TRANSISTOR COUNT: Type: Metal 1: AlCu (1%)/TiW Thickness: Metal 1: 6kÅ ±0.8kÅ 53 SUBSTRATE POTENTIAL (Powered Up): Type: Metal 2: AlCu (1%) Thickness: Metal 2: 16kÅ ±1.1kÅ V- Metallization Mask Layout HA4201 GND EN V- IN V+ OUT TALLY All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see web site http://www.intersil.com 7