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LM1283N データシート(PDF) 3 Page - National Semiconductor (TI) |
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LM1283N データシート(HTML) 3 Page - National Semiconductor (TI) |
3 / 13 page AC Electrical Characteristics See AC Test Circuit ( Figure 6), T A = 25˚C, VCC1 = VCC2 = 12V; V4 = 0V. Manually adjust Video Output pins 18, 20, and 23 to 4V DC for the AC test unless otherwise stated (Note 15) Symbol Parameter Conditions Typical (Note 5) Limit (Note 6) Units A V max Video Amplifier Gain V 13 = 4V, VIN = 400 mVPP 10.0 7.0 V/V (min) V drive = 4V 20.0 16.9 dB (min) ∆A V2V Contrast Attenuation @ 2V Ref: A V max, V13 = 2V −6 dB ∆A V 0.25V Contrast Attenuation @ 0.25V Ref: A V max, V13 = 0.25V −24 dB ∆Drive 2V Drive Attenuation @ 2V Ref: A V max, Vdrive = 2V −4.5 dB ∆Drive 0.25V Drive Attenuation @ 0.25V Ref: A V max, Vdrive = 0.25V −10 dB A V match Absolute Gain Match @ A V max V 13 = 4V, Vdrive = 4V (Note 9) ±0.2 dB A V track Gain Change between Amplifiers V 13 = 4V to 2V (Notes 9, 10) ±0.2 dB THD Video Amplifier Distortion V O = 1VPP,f = 10 kHz 1 % f(−3 dB) Video Amplifier Bandwidth (Notes 11, 12) V 13 = 4V, Vdrive = 3V, V O = 4VPP 140 MHz t r (Video) Video Output Rise Time (Note 11) V O = 4VPP 2.3 ns t f (Video) Video Output Fall Time (Note 11) V O = 4VPP 3.3 ns V sep 10 kHz Video Amplifier 10 kHz Isolation V 13 = 4V (Note 13) −70 dB V sep 10 MHz Video Amplifier 10 MHz Isolation V 13 = 4V (Notes 11, 13) −50 dB t r (Blank) Blank Output Rise Time (Note 11) Blank Output = 1V PP 8ns t f (Blank) Blank Output Fall Time (Note 11) Blank Output = 1V PP 14 ns t r-prop(Blank) End of Blanking Propagation Delay Blank Output = 1V PP 23 ns t f-prop (Blank) Start of Blanking Propagation Delay Blank Output = 1V PP 20 ns T pw (Clamp) Back Porch Clamp Pulse Width (Note 14) 200 ns (min) OSD Electrical Characteristics See DC Test Circuit ( Figure 5), T A = 25˚C; VCC1 = VCC2 = 12V; V13 = 4V; V14 = 4V; V16 = 4V; VDrive = 4V; V4 = 4V; V15 = 0V; V 25 = 1V unless otherwise stated Symbol Parameter Conditions Typical (Note 5) Limit (Note 6) Units V OSDI OSD Input Low Input Voltage 1.2 0.4 V (max) V OSDh OSD Input High Input Voltage 1.6 2.0 V (min) V 4l OSD Select Low Input Voltage Video Inputs are Selected 1.2 0.8 V (max) V 4h OSD Select High Input Voltage OSD Inputs are Selected 1.6 2.0 V (min) I 4l OSD Select Low Input Current V 4 = 0V −3.0 −6.0 µA (max) I 4h OSD Select High Input Current V 4 = 12V 0.001 1.0 µA (min) ∆V O-OSD(1V) OSD ∆Black Level Output Voltage, Difference from Video Output V 25 = 1V ±150 mV V OSD-out OSD Output Voltage V PP V 14 = 4V, VDrive = 2V 5.0 V PP ∆V OSD-out OSD Output V PP Attenuation V 14 = 2V, VDrive = 2V 50 30 % (min) ∆V OSD-out match Output Match between Channels V 14 = 4V, VDrive = 2V ±2.0 % V OSD-out track Output Variation between Channels V 14 = 4V to 2V, VDrive = 2V ±2.0 % t r (OSD S) Video to OSD Switch Time (Note 11) V 1 = V2 = V3 = 4V (Note 16) 4ns t f(OSD S) OSD to Video Switch Time (Note 11) V 1 = V2 = V3 = 4V (Note 16) 11 ns t r-prop (OSD S) Video to OSD Propagation Delay V 1 = V2 = V3 = V13 = V14 = 4V 11 ns t f-prop (OSD S) OSD to Video Propagation Delay V 1 = V2 = V3 = V13 = V14 = 4V 12 ns t r (OSD) OSD Rise Time at V O (Note 11) V 14 = 4V; V25 = 1V 4 ns t f (OSD) OSD Fall Time at V O (Note 11) V 14 = 4V; V25 = 1V 10 ns t r-prop (OSD) Starting OSD Propagation Delay V 14 = 4V; V25 = 1V 6.5 ns www.national.com 3 |
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同様の説明 - LM1283N |
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