NJM2526 4 INPUT 1 OUTPUT VIDEO SWITCH with ISOLATION AMP. ■ GENERAL DESCRIPTION The NJM2526 is a 4-input 1-output video switch with isolation amplifier. Isolation circuit removes the noise of a signal. The NJM2526 includes sync chip clamp circuit. It is suitable for the change of the composite signal, synchronized signal of the Car AV equipment ■ PACKAGE OUTLINE NJM2526V ■ FEATURES ● Operating Voltage 4.5 to 9.0V ● Internal Isolation Amp. ● Internal 4 input 1 output Video Switch ● Syncchip Clamp ● Bipolar Technology ● Package Outline SSOP16 ■ BLOCK DIAGLAM Vin4 1 16 GND MUTE SW2 VGND4 2 15 Vout2 Vin3 3 14 MUTE VGND3 4 13 SW2 VGND1 5 12 Vout1 Vin1 6 11 SW3 SW3 SW1 VGND2 7 10 SW1 V+ 8 9 Vin2 Ver.7 -1- NJM2526 ■ ABOSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL + V PD Topr Tstg RATING 15.0 300 -40 to +85 -40 to +125 UNIT V mW °C °C ■ RECOMMENDED OPERATING CONDITION (Ta=25°C) PARAMETER SYMBOL Operating Voltage TEST CONDITION Vopr MIN. TYP. MAX. UNIT 4.5 - 9.0 V + ■ ELECTRICAL CHARACTERISTICS ( V =5.0V, Ta=25°C) PARAMETER Operating Current Maximum Output Level Voltage Gain Frequency Characteristics Common Mode Rejection Ratio Crosstalk Between Input Differential Gain Differential Phase SW Change High Level SW Change Low Level SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT ICC Vom1 Gv Gf CMR CT-I DG DP VthH VthL No Signal Vin=100kHz,Sigh-Signal,THD=1%, Vin=100kHz,1.0Vp-p Sign-Signal Vin=10MHz / 1MHz ,1.0Vpp Sign-Signal Vin=20kHz,1.0Vpp Vin=4.43MHz, 1.0Vp-p Sign-Signal Vin=1.0Vp-p 10step Video Signal Vin=1.0Vp-p 10step Video Signal 2.0 -1.0 -1.0 2.0 0 10 2.2 0 0 -50 -65 0.3 0.4 - 15 1.0 1.0 + V 0.6 mA Vp-p dB dB dB dB % deg V V ■ SW vs. INPUT/OUTPUT SW1 SW2 SW3 MUTE Vout1 Vout2 L L H H X X X X X X X X L L H H L L L L H H H H L H L H L H L H Vin1 Vin1 Vin2 Vin2 Vin3 Vin3 Vin4 Vin4 Vin1 MUTE Vin2 MUTE Vin3 MUTE Vin4 MUTE Ver.7 -2- NJM2526 ■ TEST CIRCUIT 1 VOUT2 MUTE VthH SW2 VthL VthH VthL SW3 VthH SW1 VthL VthH Vin2 VthL 2kΩ 2kΩ + 16 Vout1 + 22uF 15 75Ω 14 13 + 22uF 12 11 10 9 6 7 8 4.7uF NJM2526 1 2 + 3 + 4.7uF 4 + 4.7uF 5 + 4.7uF + + 4.7uF 4.7uF + 4.7uF 4.7uF V+ 75 Vin4 75Ω 75Ω VGND4 Vin3 VGND3 VGND1 Vin1 VGND2 Ver.7 -3- NJM2526 ■ TEST CIRCUIT 2 (measure on CMR) VOUT2 MUTE VthH SW2 VthL VthH SW3 VthL 2kΩ VthH SW1 VthL VthH 15 14 13 500kΩ 50Ω + 22uF Vin2 VthL 2kΩ + 16 Vout1 + 22uF 12 11 10 9 6 7 8 4.7uF NJM2526 1 2 + + 4.7uF 4.7uF 500kΩ 500kΩ 3 4 + 5 + 4.7uF + + 4.7uF 4.7uF + 4.7uF 500kΩ 4.7uF + 50Ω 50Ω Vin4 Ver.7 -4- VGND4 Vin3 1nF 10uF 50Ω VGND3 VGND1 Vin1 VGND2 V+ NJM2526 ■ APPLICATION CIRCUIT VOUT2 MUTE VthH SW2 VthL VthH VthL 2kΩ SW3 VthH SW1 VthL VthH Vin2 VthL 75Ω 2kΩ + 16 VOUT1 + 22uF 15 14 13 + 22uF 12 11 10 9 6 7 8 4.7uF NJM2526 1 2 + 3 + 4.7uF 4 + 4.7uF 5 + 4.7uF 75Ω + + 4.7uF 4.7uF 75Ω + 4.7uF 4.7uF 0.01uF 75Ω + 10uF Vin4 VGND4 Vin3 VGND3 VGND1 Vin1 VGND2 V+ Ver.7 -5- NJM2526 ■ EQUIVALENT CIRCUIT Pin No. Symbol 1 3 6 9 Vin4 Vin3 Vin1 Vin2 2 4 5 7 VGND4 VGND3 VGND1 VGND2 8 V+ 10 11 13 14 SW1 SW3 SW2 MUTE 12 15 Vout1 Vout2 Inside Equivalent Circuit Voltage 240Ω 1.64V 31kΩ 1.63V 30kΩ - 8kΩ - 20kΩ 0.87V 60Ω 16 Ver.7 -6- GND - NJM2526 ■ TYPICAL CHARACTERISTICS Voltage Gain vs. Frequency (V+=5V,Vin=1Vpp) Common Mode Rejection Ratio vs. Frequency (V+=5V,Vin=1Vpp) VIN1 VIN2 VIN3 VIN4 10.0 IN1 IN3 IN2 IN4 -30.0 5.0 -35.0 -40.0 -5.0 CMR [dB] Gain [dB] 0.0 -10.0 -15.0 -45.0 -50.0 -20.0 -55.0 -25.0 -30.0 5 10 6 10 10 7 -60.0 1 10 8 10 10 2 3 4 10 Freq [Hz] 10 10 5 6 10 7 10 Freq [Hz] Supply Current vs. Supply Voltage (No Signal) Maximum Output Voltage Swing vs. Supply Voltage (Vin=100kHz sine-signal THD=1%) 20.0 VIN1 VIN2 VIN3 VIN4 5.0 4.0 Vom [V] Icc [mA] 15.0 10.0 3.0 2.0 1.0 5.0 4 6 8 10 12 14 16 0.0 4 6 8 Vcc [V] 1.0 1.0 0.5 0.5 Gf [dB] Gv [dB] 1.5 0.0 -0.5 -1.0 -1.0 -1.5 -1.5 10 Vcc [V] 12 14 16 VIN1 VIN2 VIN3 VIN4 0.0 -0.5 8 16 2.0 1.5 6 14 Frequency vs. Supply Voltage (Vin=10MHz/1MHz 1Vpp sine-signal) VIN1 VIN2 VIN3 VIN4 2.0 4 12 Vcc [V] Voltage Gain vs. Supply Voltage (Vin=100kHz 1Vpp sine-signal) -2.0 10 -2.0 4 6 8 10 12 14 16 Vcc [V] Ver.7 -7- NJM2526 ■ TYPICAL CHARACTERISTICS Common Mode Rejection ratio vs. Supply Voltage (Vin=20kHz 1Vpp) -20.0 Crosstalk vs. Supply Voltage (Vin=4.43MHz 1Vpp Vin1 to Vin2,3,4) VIN1 VIN2 VIN3 VIN4 VIN1->VIN2 VIN1->VIN3,4 -30.0 -25.0 -40.0 -50.0 -35.0 CT-I [dB] CMR [dB] -30.0 -40.0 -45.0 -60.0 -70.0 -50.0 -80.0 -55.0 -60.0 4 6 8 10 12 14 -90.0 16 4 6 8 Vcc [V] 10 12 14 Vcc [V] Crosstalk vs. Supply Voltage (Vin=4.43MHz 1Vpp, Vin2 to Vin1,3,4) Crosstalk vs. Supply Voltage (Vin=4.43MHz 1Vpp, Vin3 to Vin1,2,4) VIN2->VIN1 -40.0 -40.0 -50.0 -50.0 -60.0 -60.0 -70.0 -70.0 -80.0 -80.0 4 6 8 10 12 14 VIN3->VIN1,2 -30.0 CT-I [dB] CT-I [dB] VIN3->VIN4 VIN2->VIN3,4 -30.0 -90.0 16 -90.0 16 4 6 8 Vcc [V] 10 12 14 16 Vcc [V] Crosstalk vs. Supply Voltage (Vin=4.43MHz 1Vpp Vin4 to Vin1,2,3) Differential Gain vs. Supply Voltage (Viin=1Vpp 10Step signal) VIN1 VIN2 VIN3 VIN4 VIN4->VIN3 VIN4->VIN1,2 -40.0 2.5 -50.0 2.0 -60.0 1.0 -80.0 0.5 4 6 8 10 Vcc [V] -8- 1.5 -70.0 -90.0 Ver.7 3.0 DG [%] CT-I [dB] -30.0 12 14 16 0.0 4 6 8 10 Vcc [V] 12 14 16 NJM2526 ■ TYPICAL CHARACTERISTICS Differential Phase vs. Supply Voltage (Vin=1Vpp 10Step signal) SW Change Voltage vs. Supply Voltage VIN1 VIN2 VIN3 VIN4 3.0 2.5 2.5 2.0 2.0 Vth [V] DP [deg] 3.0 1.5 1.5 1.0 1.0 0.5 0.5 0.0 4 6 8 10 12 14 SW1 SW2 SW3 MUTE 0.0 16 4 6 8 10 12 14 16 Vcc [V] Vcc [V] Supply Current vs. Temperature (V+=5V,No Signal) Maximum Output Voltage Swing vs. Temperature (V+=5V,Vin=100kHz 1Vpp) VIN1 VIN2 VIN3 VIN4 4.0 14.0 3.5 3.0 Vom [Vp-p] Icc [mA] 12.0 10.0 8.0 2.5 2.0 1.5 6.0 -40 0 40 80 1.0 120 -40 0 Temp [oC] Frequency vs. Temperature (V+=5V, Vin=10MHz/1MHz 1Vpp) VIN1 VIN2 VIN3 VIN4 2.0 1.5 1.5 1.0 1.0 0.5 0.5 Gf [dB] Gv [dB] 2.0 0.0 -0.5 -1.0 -1.0 -1.5 -1.5 0 40 Temp [oC] 120 80 120 VIN1 VIN2 VIN3 VIN4 0.0 -0.5 -40 80 Temp [ C] Voltage Gain vs. Temperature (V+=5V, Vin=100kHz 1Vpp) -2.0 40 o -2.0 -40 0 40 80 120 Temp [oC] Ver.7 -9- NJM2526 ■ TYPICAL CHARACTERISTICS Common Mode Rejection vs. Temperature (V+=5V, Vin=20kHz 1Vpp) Crosstalk vs. Temperature (V+=5V, Vin=4.43MHz 1Vpp, Vin1 to Vin2,3,4) VIN1 VIN2 VIN3 VIN4 -20.0 VIN1->VIN2 -30.0 -40.0 -50.0 CT-I [dB] CMR [dB] -40.0 -50.0 -60.0 -60.0 -70.0 -70.0 -80.0 -80.0 -90.0 VIN1->VIN3,4 -30.0 -40 0 40 80 -90.0 120 -40 0 Temp [oC] 40 80 Temp [oC] Crosstalk vs. Temperature (V+=5V, Vin=4.43MHz 1Vpp, Vin2 to Vin1,3,4) Crosstalk vs. Temperature (V+=5V, Vin=4.43MHz 1Vpp, Vin3 to Vin1,2,4) VIN2->VIN1 -40.0 -40.0 -50.0 -50.0 -60.0 -60.0 -70.0 -70.0 -80.0 -80.0 -40 0 40 80 VIN3->VIN1,2 -30.0 CT-I [dB] CT-I [dB] VIN3->VIN4 VIN2->VIN3,4 -30.0 -90.0 120 -90.0 120 -40 o 0 40 80 120 o Temp [ C] Temp [ C] Crosstalk vs. Temperature (V+=5V, Vin=4.43MHz 1Vpp, Vin4 to Vin1,2,3) Differential Gain vs. Temperature (V+=5V, Vin=1Vpp 10Step signal) VIN1 VIN2 VIN3 VIN4 VIN4->VIN3 VIN4->VIN1,2 -40.0 2.5 -50.0 2.0 -60.0 1.0 -80.0 0.5 -40 0 40 Temp [oC] - 10 - 1.5 -70.0 -90.0 Ver.7 3.0 DG [%] CT-I [dB] -30.0 80 120 0.0 -40 0 40 Temp [oC] 80 120 NJM2526 ■ TYPICAL CHARACTERISTICS Differential Phase vs. Temperature (V+=5V, Vin=1Vpp 10Step signal) SW Change Voltage vs. Temperature (V+=5V) VIN1 VIN2 VIN3 VIN4 3.0 3.0 2.5 2.5 2.0 Vth [V] DP [deg] 2.0 1.5 1.5 1.0 1.0 0.5 0.5 0.0 SW1 SW2 SW3 MUTE 0.0 -40 0 40 Temp [oC] 80 120 -40 0 40 80 120 Temp [oC] [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. Ver.7 - 11 -