NJM2279 3-INPUT 2-OUTPUT VIDEO SWITCH ■ GENERAL DESCRIPTION The NJM2279 is 3-input 2-output video switch that can be used in a single or dual power supply. It includes 6dB amplifier, 75ohm driver circuit and independent 2-Output mute. ■ FEATURES • Operating Voltage (Dual) ±4.0V to ±7.0V (Single) +8.0V to +14V • 3-input 2-output Video Switch • Internal 6dB Amplifier • Internal 75Ω Driver Circuit • Independent 2-Output Mute • Bipolar Technology • Package Outline DIP14, DMP14 ■ PACKAGE OUTLINE NJM2279D NJM2279M ■ RECOMMENDED OPERATING CONDITION • Supply Voltage (Dual) ±4.0V to ±7.0V (Single) +8.0V to +14V ■ BLOCK DIAGRAM ■ PIN CONFIGURATION Ver.2009-02-05 -1- NJM2279 (Ta = 25ºC) ■ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL + Supply Voltage RATINGS - UNIT V /V ±7.5 V Power Dissipation PD (DIP14) 700 (DMP14) 300 mW mW Operating Temperature Range Topr -20 to +75 ºC Storage Temperature Range Tstg -40 to +125 ºC (V+ / V- = ±5V, RL = 150Ω, Ta = 25°C) ■ ELECTRICAL CHARACTERISTICS PARAMETER Operating Current SYMBOL MIN. TYP. MAX. UNIT ICC No signal TEST CONDITION 10.0 17.3 24.6 mA IEE No signal -24.6 -17.3 -10.0 mA Voltage Gain GV VIN = 100kHz / 1.0VP-P 6.0 6.3 6.8 dB Frequency Characteristic Gf 5MHz / 100kHz, 1.0VP-P -1.0 0.0 +1.0 dB Differential Gain DG VIN = 1.0VP-P, Stair wave - 0.2 - % Differential Phase DP VIN = 1.0VP-P, Stair wave - 0.2 - deg Offset output Voltage 1 VOS1 Vin2-Vin 3 : no signal -40 0 +40 mV Offset output Voltage 2 VOS2 Vin1-Vin 2 / Vin3 : no signal -60 0 +60 mV Input / Output Crosstalk CT VIN = 4.43MHz / 1.0VP-P, VO / VIN - -70 - dB MUTE Crosstalk CTM VIN = 4.43MHz / 1.0VP-P, VO / VIN - -60 - dB 2.5 - V+ V 0.0 - 1.0 V - 0.1 - % - 20 - kΩ Switch Change Voltage Total Harmonic Distortion Input Impedance VCH VCL THD VIN = 1kHz 1.25VP-P Rin (L = VCL, H = VCH, X = L or H) ■ CONTROL SIGNAL-OUTPUT SIGNAL SW1 (2 pin) X X X L L H H -2- CONTROL SIGNAL SW2 (13 pin) MUTE 1 (11 pin) X L X L X H L H H H L H H H MUTE 2 (4 pin) L H L H H H H OUTPUT Vout 1 (10 pin) Vout 2 (5 pin) GND GND GND OUT PUT OUT PUT GND VIN 1 VIN 2 VIN 2 VIN 2 VIN 1 VIN 3 VIN 3 VIN 3 Ver.2009-02-05 NJM2279 ■TERMINAL FUNCTION PIN No. PIN NAME INSIDE EQUIVALENT CIRCUIT NOTE 1 3 12 VIN3 VIN2 VIN1 Video signal input terminal The bias is done with 20kΩ by the voltage of the terminal GND1. 1Vp-p input (0.0V = GND1) 7 GND1 GND terminal When a single power supply is used, the bias is done to 1/2V+. 2 13 SW1 SW2 Switch control terminal for input signal selection (0.0V = GND2, Uncontrolled) 4 11 MUTE2 MUTE1 Mute control terminal The output is GND1 voltage at the mute. (0.0V = GND2, Uncontrolled) 6 GND2 GND terminal Please connect it with GND regardless of dual power supplies or single power supplies. 5 10 VOUT2 VOUT1 Video signal input terminal The output signal level becomes 1VP-P at 75Ω terminal. 8 V+ 14 V- - - Ver.2009-02-05 Power supply terminal Power supply terminal When a single power supply is used, it becomes GND. -3- NJM2279 ■ TEST CIRCUIT PARAMETER Operating Current SYMBOL UNIT INPUT TERMINAL TEST TERMINAL ICC mA - 8 pin Vin1 to 3 = 0V, SW1/2·MUTE1/2 = VCL IEE mA - 14 pin Vin1 to 3 = 0V, SW1/2·MUTE1/2 = VCL TEST CONDITION Voltage Gain GV dB 1, 3,12 pin 5, 10 pin MUTE1/2 = VCL Frequency Characteristic Gf dB 1, 3,12 pin 5, 10 pin MUTE1/2 = VCL Differential Gain DG % 1, 3,12 pin 5, 10 pin MUTE1/2 = VCL Differential Phase DP deg 1, 3,12 pin 5, 10 pin MUTE1/2 = VCL Offset output Voltage 1 VOS1 mV 1, 3,12 pin 5, 10 pin Vin1 to 3 = 0V Offset output Voltage 2 VOS2 mV - 5, 10 pin Vin1 to 3 = 0V Input / Output Crosstalk CT dB - 5, 10 pin MUTE1/2 = VCL MUTE Crosstalk CTM dB 1, 3,12 pin 5, 10 pin MUTE1/2 = VCL VCH V 1, 3,12 pin 5, 10 pin Switch Change Voltage Total Harmonic Distortion -4- VCL V - - THD % 1, 3,12 pin 5, 10 pin Ver.2009-02-05 NJM2279 ■ APPLICATION CIRCUIT (Dual Power Supply) (Note) Terminal connection at single power supply 7pin : 1/2V+ bias 14Pin : GND Ver.2009-02-05 -5- NJM2279 ■ TYPICAL CHARACTERISTICS Operating Current vs. Temperature Voltage Gain vs. Temparature Differential Gain vs. Temperature Differential Phase vs. Temperature Crosstalk 1 vs. Temperature -6- Crosstalk 2 vs. Temperature Ver.2009-02-05 NJM2279 ■ TYPICAL CHARACTERISTICS Crosstalk 3 vs. Temperature MUTE Crosstalk vs. Temperature Channel offset Voltage vs. Temperature Ver.2009-02-05 Crosstalk 4 vs. Temperature MUTE offset Voltage vs. Temperature Total Harmonic Distortion vs. Temperature -7- NJM2279 ■ TYPICAL CHARACTERISTICS Frequency characteristic vs. Temperature Differential Gain vs. RL Differential Phase vs. APL -8- THD vs. RL Differential Phase vs. RL Differential Phase vs. APL Ver.2009-02-05 NJM2279 ■ TYPICAL CHARACTERISTICS Operating Current vs. Operating Voltage Different Gain vs. Operating Voltage Voltage Gain vs. Frequency Ver.2009-02-05 THD vs. Operating Voltage Differential Phase vs. Operating Voltage Swiching Voltage vs. Operating Voltage -9- NJM2279 ■ TYPICAL CHARACTERISTICS Switching Speed vs. Signal Amplitude [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. - 10 - Ver.2009-02-05