j NJM2568 Video Amplifier with 75 ohms Driver ■GENERAL DESCRIPTION ■PACKAGE OUTLINE THE NJM2568 is a video amplifier with 75 ohms drivers, which includes LPF and BPF of both Y and C system. THE NJM2568 can compose the output circuit of digital video items with a little external components. It is suitable for portable items. NJM2568V ■FEATURES + + ●Operating Voltage V 1=4.5 to 5.3V,V 2=2.7 to 5.3V + ●Operating Current 9.5mAtyp.V =4.8V + 7.3mAtyp.V =3.0V ●Internal LPF,BPF ●Internal Clamp Discharge ●Bipolar Technology ●Package Outline SSOP14 ■BLOCK DIAGRAM 12 11 10 COMP. 3 3v Vreg 4.8v Blank LEVEL CLAMP GCA 6±3dB -6dB 2 CLAMP LPF ATT -6dB +18dB 75ΩDriver 1 8 Blank LEVEL 4 9 DISC. 5 6 BIAS 14 GCA 6±3dB -6dB ATT 7 BPF 13 PowerSave 1.CLAMP REF 2.YIN 3.GCA CTLY/MUTE 4.CLAMP 5.DIS CTL 6.GND 7.GND 8.VSAG 9.VOUT + 10.V 1 + 11.V 1 + 12.V 2 13.GCA CTLC/POWER SAVE 14.CIN -1- j NJM2568 ■ABSOLUTE MAXIMUM RATINGS PARAMETERS SYMBOL + Supply Voltage V Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg RATINGS 7.0 300 -20 to +85 -40 to +125 + (Ta=25°C) UNIT V mW °C °C + ■ELECTRICAL CHARACTERISTICS ( Ta=25°C,V 1=4.8V,V 2=3.0V,RL=150Ω) PARAMETERS Operating Current 1 Operating Current 1 (Power Save Mode) Operating Current 2 Operating Current2 (Power Save Mode) SYMBOL ICC1 Isave1 Icc2 Isave2 TEST CONDITION MIN. TYP. MAX. UNIT + - 9.5 12.5 mA + - 1.6 2.1 mA + - 7.3 10.0 mA + - 0.37 0.9 mA +6.0 V 1=4.8V,No Signal V 1=4.8V,Power Save V 2=3.0V,No Signal V 2=3.0V,Power Save (Y Amplifier) Voltage Gain 1 GvY1 YIN to VOUT,GCACTLY=0.5V 100kHz,0.5Vp-p @Sine Wave +3.0 +9.0 dB Voltage Gain 2 GvY2 YIN to VOUT,GCACTLY=2.5V 100kHz,0.5Vp-p @Sine Wave +13.0 +16.0 +19.0 dB +3.0 +9.0 dB +13.0 +16.0 +19.0 dB (C Amplifier) Voltage Gain 1 GvC1 Voltage Gain 2 GvC2 CIN to VOUT,GCACTLY=0.5V 4MHz,143mVp-p @Sine Wave CIN to VOUT,GCACTLC=2.5V 4MHz,143mVp-p @Sine Wave +6.0 (Filter Characteristics) LPF (YIN) BPF (CIN) GfY6M GfY7.2M GfY20M DLY GfC±1M GfC±1.6M GfC500k GfC20M DLC 6MHz/100kHz,100mVp-p @Sine Wave 7.2MHz/100kHz,100mVp-p@Sine Wave 20MHz/100kHz,100mVp-p@Sine Wave Group Delay |GD3MHz-GD6MHz| ±1MHz/4MHz,100mV@Sine Wave ±1.6MHz/4MHz,100mV@Sine Wave 500kHz/4MHz,100mVp-p@Sine Wave 20MHz/4MHz,100mVp-p@Sine Wave Group Delay |GD3MHz-GD6MHz| -1.0 -1.5 -1.0 -3.0 - 0 0 -30 60 0 0 -15 -25 60 -20 100 -10 -10 90 dB dB dB nsec dB dB dB dB nsec - +25 - nsec 1.2 - - Vp-p 0.5 GND 0.5 GND - 2.5 0.3 2.5 0.3 V V V V (YC Delay) YC Delay TYC TYOUT-TCOUT at 4MHz VOVM 100kHz,Sine Wave,RL=75Ω (Maximum Output Swing) V-OUT (GCA Control Signal) GCACTLY GCACTLC VGC1 VGL1 VGC2 VGL2 GCA Control Voltage MUTE Voltage GCA Control Voltage Power Down Voltage -2- j NJM2568 ■TEST CIRCUIT C IN V +1 V +2 G C AC TLC VOUT2 VOUT1 S2 A B 75Ω 50Ω 47uF 47uF + + 75Ω 1000pF 1000pF S4 A 75Ω 1000pF + B 100uF + 22uF + + 0 .1 u F 14 13 12 11 10 9 8 6 7 GND GND N JM 2568 1 2 3 4 5 0 .1 u F 1uF + + S3 A B 1M Ω 1000pF S1 A 75Ω 1uF 20kΩ B 20kΩ 50Ω Y IN G C A C T LY D IS C .C T L -3- NJM2568 MEMO ＜注意事項＞ このデータブックの掲載内容の正確さには 万全を期しておりますが、掲載内容について 何らかの法的な保証を行うものではありませ ん。とくに応用回路については、製品の代表 的な応用例を説明するためのものです。また、 工業所有権その他の権利の実施権の許諾を伴 うものではなく、第三者の権利を侵害しない ことを保証するものでもありません。