GX4314 Wideband, Monolithic 4x1 Video Multiplexer DATA SHEET FEATURES CIRCUIT DESCRIPTION • low differential phase and gain The GX4314 is a wideband video multiplexer implemented in bipolar technology. This device is characterized by excellent differential phase and gain in the enabled state, very high off-isolation in the disabled state and fully buffered unilateral signal path. Make-before-break switching assures virtually glitch-free switching. • wide bandwidth, 100 MHz at -1 dB (Flattened) • small switching transient • ±4.5 to ± 11 volts supplies For use in NxM routing matrices, the GX4314 features a very high, nearly constant input impedance coupled with high output impedance in the disabled state. This allows multiple devices to be paralleled at the inputs and outputs without additional circuitry. FUNCTIONAL BLOCK DIAGRAM IN 0 Logic inputs are TTL and 5V CMOS compatible, providing address and chip select functions. The operation of the devices is described in the Truth Table below. X X IN 1 X OUTPUT X IN 2 IN 3 X 2 TO 4 DECODER LOGIC CHIP SELECT A1 A0 CS GX4314 The wideband GX4314 is pin for pin compatible with the high performance GX414, extending the flat frequency response characteristics from 50 to 100 MHz. APPLICATIONS • HDTV • Very high quality video switching • Very high density video switching • Computer graphics • PCM / data routing TRUTH TABLE CS A1 A0 0 0 0 0 1 0 0 1 1 X 0 1 0 1 X OUTPUT IN 0 IN 1 IN 2 IN 3 HI - Z X = DON'T CARE ORDERING INFORMATION Part Number Package Type Temperature Range GX4314 - CDB 14 pin PDIP 0 to 70oC GX4314 - CKB 14 pin SOIC 0 to 70oC AVAILABLE PACKAGING 14 pin PDIP 14 pin SOIC CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION Document No. 13422 - 5 GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-2055 Japan Branch: B-201 Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168, Japan tel. (03) 3247-8838 fax (03) 3247-8839 ABSOLUTE MAXIMUM RATINGS PIN CONNECTIONS Parameter Supply Voltage ± 13.5V 0°C £ TA £ 70° C Operating Temperature Range Storage Temperature Range Analog Input Voltage Supply Voltage DYNAMIC Supply Current CS 260° C GND NC IN 3 VEE OUT 14 PIN DIP & 14 PIN NARROW SOIC SYMBOL CONDITIONS MIN TYP MAX ± 4.5 - ± 11 UNITS ± VS Operating Range I CS = 0 - 22 25 mA I- CS = 0 - 22 25 mA I+ CS = 1 - 270 350 mA I CS = 1 - 350 600 mA -2.4 - 2.6 V - 11 - mA 7 14 21 mV - 160 - - 200 400 ns 0.6 1.2 - ms 2.0 - - 0.8 V V - - 4 mA 0.025 0.038 0.050 dB + - VOUT Analog Input Bias Current I BIAS Output Offset Voltage VOS Output Offset Voltage Drift DVOS Chip Enable Time t ON Enable input to appearance of signal Chip Disable Time t OFF Logic Input Thresholds VIH VIL Enable input to disappearance of signal at output. 1 0 Logic Input Current IL Insertion Loss I.L. 1V p-p sine or sq. wave at 100 kHz Bandwidth (-3dB) B.W. small signal C L = 0 pF - 300 - MHz Input Resistance RIN CS = 0, crosspoint on 0.5 - - MW Input Capacitance CIN CS = 0, crosspoint on - 1.4 - pF Output Resistance ROUT CS = 0, crosspoint on - 6 - W Output Capacitance COUT CS = 1, chip disabled - 2.6 - pF Differential Gain dg ƒ = 3.58 MHz, VIN = 40 IRE - - 0.03 % Differential Phase dp ƒ = 3.58 MHz, VIN = 40 IRE - - 0.02 deg All Hostile Crosstalk XTLKAH 1Vp-p on 3 inputs 4 th input has 10W resistor to gnd ƒ=30 MHz - 70 - dB Chip Disabled Crosstalk XTLKCD Enabled device on O/P ƒ=100 MHz - 80 - dB Slew Rate +SR -SR VIN = 1V p-p (CL = 10 pF) VIN =1V p-p (CL = 10 pF) 1000 440 1500 660 - V/ms V/ms - - ± 0.05 dB - - ± 0.15 deg - - ± 0.25 deg Crosspoint Scatter Extremes before clipping occurs V Analog Output Voltage Swing Gain Spread at 30 MHz TA = 25°C DAV o R = 75 W S T A = 25 C ƒ = 3.58 MHz 13422 - 5 A1 GND (VS = ± 8V DC, 0°C £ TA £ 70°C, R L = 10kW, C L = 30 pF, unless otherwise shown.) PARAMETER LOGIC A0 IN 1 -0.5V £ VL £ +5.5V Logic Input Voltage STATIC VCC IN 2 (VEE - 1.4) or -7.5<VA< (Vcc+ 0.3) or ( V EE+ 15) V ELECTRICAL CHARACTERISTICS IN 0 GND -65°C £ TS £ 150° C Lead Temperature (Soldering, 10 Sec) DC SUPPLY GX4314 Value 2 o o 0 C<TA<70 C mV/°C TYPICAL PERFORMANCE CURVES FOR GX4314 0.1 -20 0 GAIN (dB) ISOLATION & XTALK (dB) RS = 30 W -0.2 CL = 27 pF -0.4 -0.6 -0.8 -1.0 11 -60 RIN=75W CHIP OFF ISOLATION RL=10W -100 11 10 FREQUENCY (MHz) 3 2 SW0, SW3 ENABLED 2.8 VS = ±4.5V CAPACITANCE (pF) CAPACITANCE (pF) 1.8 1.6 1.4 SW1, SW2 ENABLED 1.2 2.6 V = ±8V S 2.4 VS = ±11V 2.2 CL = 0 pF 1 1 10 FREQUENCY (MHz) 100 2 200 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 BIAS VOLTAGE (V) Fig. 3 Input Capacitance Fig. 4 Output Capacitance 0.030 15 SUPPLY VOLTAGE (V) 0.025 dg ( % ), dp ( deg ) 100 100 Fig. 2 All Hostile Crosstalk & Isolation Fig. 1 Flattened Frequency Response 0.020 dg 0.015 0.010 dp 0.005 0 RIN=10W -80 -120 100100 10 FREQUENCY (MHz) -40 1 3 5 FREQUENCY (MHz) 14 pin PDIP 12 14 pin 150 mil SOIC 9 16 pin 300 mil SOIC 6 3 0 10 0 20 40 60 80 100 120 AMBIENT TEMPERATURE ( °C) Fig. 5 Differential Gain & Phase Fig. 6 Safe Operating Area for GX4314 (All packages) NOTE: Curves are based on 25 mA max. supply current and 130°C max. junction temperature. 3 13422 -5 +5V 0.1 VIDEO IN 0 1 75 14 2 13 A0 12 A1 VIDEO IN 1 3 75 4 CS 11 GX4314 VIDEO IN 2 5 75 4 10 6 8 VIDEO OUT 5 NC 9 1 CLC110 10k VIDEO IN 3 8 7 75 0.1 -5V Fig. 7 Test Circuit GX4314 SWITCHES VIDEO INPUTS 1 IN 0 V0 2 3 4 5 6 7 V1 V2 V3 75 IN 3 14 +V 13 A0 A 1 12 CS 11 10 OUT 9 NC -V 8 A0 A1 4 0.1 75 75 GND IN 1 GND IN 2 GND BINARY ADDRESS DECODER +8V 0.1 75 0.1 -8V 5 +8V 6 3 1 A2 2 2 74HC139 A3 1 ENABLE 7 1 IN 0 GND IN 1 V4 2 3 4 5 6 7 V5 V6 V7 75 75 75 GND IN 2 GND IN 3 +V 14 A 0 13 A 1 12 11 CS 10 OUT 330 0.1 -8V 0.1 1 IN 0 GND 2 3 4 5 6 7 V9 V 10 V 11 75 75 75 IN 1 GND IN 2 GND IN 3 100 75 V14 V15 75 - 4 0.1 6 VIDEO 75 OUTPUT 250 -5V -8V -CLC 410 (comlinear) +8V All resistors in ohms, all capacitors in microfarads unless otherwise stated. DOCUMENT IDENTIFICATION PRODUCT PROPOSAL This data has been compiled for market investigation purposes only, and does not constitute an offer for sale. ADVANCE INFORMATION NOTE This product is in development phase and specifications are subject to change without notice. Gennum reserves the right to remove the product at any time. Listing the product does not constitute an offer for sale. 0.1 75 -8V PRELIMINARY DATA SHEET The product is in a preproduction phase and specifications are subject to change without notice. Fig. 8 16 x 1 Video Multiplexer Circuit DATA SHEET The product is in production. Gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. © Copyright July1991 Gennum Corporation. Revision Date: December 1993. All rights reserved. 13422 - 5 7 0.1 14 IN 0 +V 13 2 GND A 0 12 3 A1 IN 1 11 4 GND CS 10 5 IN 2 OUT 9 6 GND NC 8 7 -V IN 3 V 13 2 + 300 500 1 75 +5V 3 14 +V 13 A0 A 1 12 CS 11 10 OUT 9 NC -V 8 0.1 75 2-10pF +8V 0.1 V 12 +5V 0.1 NC 9 -V 8 75 V8 16 8 4