NJM2559

NJM2559 Output Coupling Capacitor-less Video Amplifier with Power Supply Short-circuit Protection sGENERAL DESCRIPTION The NJM2559 is a output coupling capacitor-less video amplifier with power supply short-circuit protection.* When the DC voltage is impressed to the output terminal, it becomes a power saving mode, and IC is protected. The NJM2559 is suitable for the video application at risk of power supply short-circuit. *DC coupling sPACKAGE OUTLINE NJM2559RB1 sFEATURES q Operating Voltage 4.5 to 5.5V q Output Coupling Capacitor-less (0.5V DC Output) q Power Supply Short-circuit Protection Circuit q Internal LPF -32dB typ. at 19MHz q 12dB Amplifier q 75Ω Driver q Power-save Circuit q Bipolar Technology q Package Outline TVSP8 sPIN CONNECTION 1 2 3 4 8 7 6 5 1: NC 2: GND 3: REF 4: Vout 5: V+ 6: Vin 7: Power save 8: NC sBLOCK DIAGRAM VCC GND 12dB LPF PS 75ΩDRV IN 50Ω 75Ω 0.1u OUT 75Ω 120Ω 120Ω CLAMP REF REF 33uF + 120Ω 120Ω Ver.0 -1- NJM2559 sABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER SYMBOL RATINGS UNIT + Supply Voltage V 7.0 V Output Terminal Voltage Vo 13.5 Power Dissipation PD 580 *1 mW Operating Temperature Range Topr -40 to +85 °C Storage Temperature Range Tstg -40 to +150 °C (Note) At on a board of EIA/JEDEC specification. (114.3 x 76.2 x 1.6mm Two layers, FR-4) sELECTRICAL CHRACTERISTCS 1( V =5V, RL= refer to test circuit, Ta=25°C) PARAMETER Operating Voltage Supply Current Supply Current at Power Save Mode Power Supply Short-circuit Voltage Output Terminal Voltage at Power Supply Short-circuit REF Terminal Voltage 1 at Power Supply Short-circuit REF Terminal Voltage 2 at Power Supply Short-circuit Maximum Output Level Voltage Gain Low Pass Filter Characteristic Differential Gain Differential Phase Output DC Voltage SW Voltage High Level SW Voltage Low Level SYMBOL Vopr ICC Isave VoDCIN No signal Power save mode 75Ω series resistance connection TEST CONDITION MIN. 4.5 1.2 0.8 2.2 11.9 -0.6 1.8 0 TYP. 5.0 9.0 40 1.5 1.1 2.5 12.3 -0.1 -32 0.5 1.5 0.5 MAX. 5.5 12.0 100 16 13.5 1.8 1.4 12.7 0.4 -22 0.65 + V 0.3 UNIT V mA uA V V V V Vp-p dB dB % deg V V + VoutDCIN 75Ω series resistance connection VthREF1 VthREF2 Vom Gv Gfy4.5M Gfy19M DG DP VoDC VthPSH VthPSL Power supply short-circuit protection OFF→ON Power supply short-circuit protection ON→OFF f=100kHz, THD=1%, sin-signal Vin=100kHz,0.5Vp-p, sin-signal Vin=4.5MHz/100kHz, 0.5Vp-p Vin=19MHz/100kHz, 0.5Vp-p Vin=0.5Vp-p, 10step video signal, RL=75Ω Vin=0.5Vp-p, 10step video signal, RL=75Ω No signal Power save terminal switch voltage Power save terminal switch voltage s CONTROL TERMINAL PARAMETER R E F STATUS H L H Power Save L OPEN Power save: ON Power save: OFF Power save: OFF Power save: ON Power save: ON MODE Non-Active mode (Mute) Active mode (Mute) Active mode Non-Active mode (Mute) Non-Active mode (Mute) Ver.0 -2- NJM2559 s TEST CIRCUIT 1 NC NC 8 2 GND Power Save 7 3 REF VIN 6 0.1uF 75Ω 75Ω 4 75Ω 120Ω 120Ω 120Ω VOUT V+ 5 10uF 0.1uF 33uF + 120Ω s APPLICATION Please connect the capacitor of power supply terminal (pin 5) near IC. DC coupling is recommended. Please do not connect the output coupling capacitor. External resistance must use power dissipation :125mW or more. When 120Ω x3 are replaced with 360Ω, 400mW or more is recommended. Ver.0 -3- NJM2559 s APPLICATION CIRCUIT: Power Supply Short-circuit for 18Vmax) 1 NC NC 8 2 GND Power Save 7 3 REF VIN 6 0.1uF 75Ω 75Ω 4 75Ω 500Ω 360Ω VOUT V+ 5 10uF 0.1uF 33uF + 120Ω s APPLICATION Please connect the capacitor of power supply terminal (pin 5) near IC. DC coupling is recommended. Please do not connect the output coupling capacitor. The power dissipation of external resistance is as follows. When the power supply short-circuit voltage is 18Vmax, the current that flows to each resistance is as follows. - 75Ω (series resistance): about 60mA - 360Ω,120Ω (power supply short-circuit detection resistance): about 30mA - 500Ω(pull-down resistance): about 30mA The power dissipation recommendation value of each resistance is as follows. - 75Ω (series resistance): 300mW or more - 360Ω(power supply short-circuit detection resistance): 400mW or more - 120Ω(power supply short-circuit detection resistance): 125mW or more - 500Ω(pull-down resistance): 500mW or more The load resistance of NJM2559 is about 93Ω in this application circuit. Please use it more than 93Ω. Moreover, supply current increases by 1mA when comparing with test circuit. Ver.0 -4- NJM2559 s TYPICAL CHARACTERICS V+ vs Icc 15 100 V+ vs Isave 75 10 Isave[uA] Icc[mA] 50 5 25 0 4 4.5 5 V+　[V] 5.5 6 0 4 4.5 5 V+　[V] 5.5 6 V+ vs Protect Mode1 16 14 12 OUT1/VOUT1/REF1[V] 10 8 6 4 2 0 4 4.5 5 V+　[V] 5.5 6 OUT2/VOUT2/REF2[V] OUT1 VOUT1 REF1 16 14 12 10 8 6 4 2 0 4 V+ vs Protect Mode2 OUT2 VOUT2 REF2 4.5 5 V+　[V] 5.5 6 Mode1: Power supply short-circuit protection OFF→ON The voltage is applied to OUT from 0V in the step of +0.1V. Each voltage when the voltage of VIN began to fall on Low is measured. Mode2: Power supply short-circuit protection ON→OFF The voltage is applied to OUT from 16V in the step of -0.1V. Each voltage when the voltage of VIN becomes 1.4V is measured. Power supply short-circuit protection internal impedance: about 4k Ω V+ Iout OUT1 OUT2 OFF GND VOUT1 VOUT2 120Ω 120Ω 75Ω to REF REF1 REF2 120Ω 120Ω Ver.0 -5- NJM2559 s TYPICAL CHARACTERICS V+ vs Vom 6 14.0 V+ vs Gv 13.5 5 13.0 Vom[Vpp] Gv[dB] 4 4.5 5 V+　[V] 5.5 6 3 12.5 12.0 2 11.5 0 11.0 4 4.5 5 V+　[V] 5.5 6 V+ vs Gfy4.5M 1.0 -10.0 V+ vs Gfy19M -20.0 0.5 -30.0 Gfy4.5M[dB] 0.0 Gfy19M[dB] -40.0 -0.5 -50.0 -1.0 4 4.5 5 V+　[V] 5.5 6 -60.0 4 4.5 5 V+　[V] 5.5 6 V+ vs DG 5.0 5.0 V+ vs DP 4.0 4.0 DG[%] DP[deg] 3.0 3.0 2.0 2.0 1.0 1.0 0.0 4 4.5 5 V+　[V] 5.5 6 0.0 4 4.5 5 V+　[V] 5.5 6 Ver.0 -6- NJM2559 s TYPICAL CHARACTERICS V+ vs VoDC 1.0 0.8 0.6 VoDC[V] 0.4 0.2 0.0 4 4.5 5 V+　[V] 5.5 6 V+ vs VthH 2.0 2.0 V+ vs VthL 1.5 1.5 VthH[V] VthL[V] 1.0 1.0 0.5 0.5 0.0 4 4.5 5 V+　[V] 5.5 6 0.0 4 4.5 5 V+　[V] 5.5 6 Ver.0 -7- NJM2559 s TYPICAL CHARACTERICS T vs Icc 15 T vs Isave 200.0 150.0 10 Icc[mA] Isave[uA] 5 0 -40 -20 0 20 40 o T [C ] 60 80 100 120 100.0 50.0 0.0 -40 -20 0 20 40 o T　[C ] 60 80 100 120 T vs Protect Mode1 16 14 12 OUT1/VOUT1/REF1[V] 10 8 6 4 2 0 -40 -20 0 20 40 o T [C ] 60 80 100 120 OUT2/VOUT2/REF2[V] OUT1 VOUT1 REF1 16 14 12 10 8 6 4 2 0 -40 -20 OUT2 VOUT2 REF2 T vs Protect Mode2 0 20 40 o T [C ] 60 80 100 120 Mode1: Power supply short-circuit protection OFF→ON The voltage is applied to OUT from 0V in the step of +0.1V. Each voltage when the voltage of VIN began to fall on Low is measured. Mode2: Power supply short-circuit protection ON→OFF The voltage is applied to OUT from 16V in the step of -0.1V. Each voltage when the voltage of VIN becomes 1.4V is measured. Power supply short-circuit protection internal impedance: about 4k Ω V+ Iout OUT1 OUT2 OFF GND VOUT1 VOUT2 120Ω 120Ω 75Ω to REF REF1 REF2 120Ω 120Ω Ver.0 -8- NJM2559 s TYPICAL CHARACTERICS T vs Vom 5.0 14.0 T vs Gv 4.0 13.5 13.0 Vom[Vp-p] 3.0 Gv[dB] 2.0 12.0 1.0 0.0 -40 -20 0 20 40 o T　[C ] 60 80 100 120 12.5 11.5 11.0 -40 -20 0 20 40 o T [C ] 60 80 100 120 T vs Gfy4.5M 1.0 -10.0 T vs Gfy19M -20.0 0.5 Gfy4.5M[dB] 0.0 -0.5 -50.0 -1.0 -40 -20 0 20 40 o T [C ] 60 80 100 120 Gfy19M[dB] -30.0 -40.0 -60.0 -40 -20 0 20 40 o T [C ] 60 80 100 120 T vs DG 5.0 5.0 T vs DP 4.0 4.0 3.0 DG[%] DP[deg] 3.0 2.0 2.0 1.0 1.0 0.0 -40 -20 0 20 40 o T　[C ] 60 80 100 120 0.0 -40 -20 0 20 40 o T　[C ] 60 80 100 120 Ver.0 -9- NJM2559 s TYPICAL CHARACTERICS T vs VoDC 1.0 0.8 VoDC[V] 0.6 0.4 0.2 0.0 -40 -20 0 20 40 o T [C ] 60 80 100 120 T vs VthH 2.0 2.0 T vs VthL 1.5 1.5 VthH[V] 1.0 VthL[V] -40 -20 0 20 40 o T　[C ] 60 80 100 120 1.0 0.5 0.5 0.0 0.0 -40 -20 0 20 40 o T　[C ] 60 80 100 120 Voltage Gain vs. Frequency 20 NJM2559 0.0 Gain [dB] -20 [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 -40 25 -40 85 105 -60 105 106 Frequency [Hz] 107 Ver.0 - 10 -