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LMH1251MT-NOPB bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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LMH1251MT-NOPB bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 19 page LMH1251 www.ti.com SNLS193J – AUGUST 2005 – REVISED MARCH 2013 Video Signal Electrical Characteristics (continued) Unless otherwise noted: TA = 25°C, VCC = +5.0V, RGB VideoIN = 0.7 VPP, Y VideoIN = 0.7 VPP, PBPR VideoIN = ±350 mV, CL = 8 pF, Video Outputs = 0.7 VPP. Symbol Parameter Conditions Min (1) Typ (2) Max (1) Units Video Frequency Domain Response RGB BW RGB Input: Large Signal BW 400 MHz Channel Bandwidth ( −3 dB) YPBPR BW YPBPR Input (SD & HD): Large Signal BW 70 MHz Channel Bandwidth ( −3 dB) VSEP Ch-Ch Video Amplifier 10 MHz Isolation (6) −50 dB 10 MHz RGB Channel to Channel VSEP INPUT-INPUT Video Amplifier 10 MHz Isolation (6) −55 dB 10 MHz RGB Input to YPBPR Input SNR Signal to Noise Ratio AC Input Signal, CL = 8 pF (6) 55 dB (6) Measure output levels of the other two undriven amplifiers relative to the driven amplifier to determine channel separation. Terminate the undriven amplifier inputs to simulate generator loading. Repeat test at fIN = 10 MHz for VSEP 10 MHz. Color Conversion Accuracy Unless otherwise noted: TA = 25°C, VCC = +5.0V, Y VideoIN = 0.7 VPP, PBPR VideoIN = ±350 mV, CL = 8 pF, Video Outputs = 0.7 VPP. Symbol Parameter Conditions Min (1) Typ (2) Max (1) Units VCOLOR ERROR |PBPR| Amplitude YPBPR Video Input, ±0.3 ±2.5 % (Calculated from RGB Outputs) 100% Color Bar (any 3 colors), (3) θCOLOR ERROR PBPR Phase Angle YPBPR Video Input, ±0.2 ±1.5 deg (Calculated from RGB Outputs) 100% Color Bar (any 3 colors), (3) (1) Datasheet min/max specification limits are specified by design, test, or statistical analysis. The ensured specifications apply only for the test conditions listed. Some performance characteristics may change when the device is not operated under the listed test conditions. (2) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. (3) Any three color bar signals can be used as test signals. The RGB outputs shall be used to calculate the amplitudes and phases of the chroma results. These should fall within the limits specified. Sync Signal Electrical Characteristics Unless otherwise noted: TA = 25°C, VCC = +5.0V, Y VideoIN = 0.7 VPP, PBPR VideoIN = ±350 mV, CL = 8 pF, Video Outputs = 0.7 VPP. Symbol Parameter Conditions Min (1) Typ (2) Max (1) Units VSYNCL H & V SYNC Low Input Pins 1 & 2 −0.5 1.5 V VSYNCH H & V SYNC High Input Pins 1 & 2 3.0 VCC +0.5 V IO-SYNCH H & V SYNC Current Sink/Source 5 k Ω Load 3 mA Capability tR/F-SYNC H & V SYNC Rise/Fall Time 15 ns tSYNC-WIDTH H & V SYNC Width Error Relative to H & V SYNC Input 5 % H & V SYNC Input tY-SYNC-WIDTH H & V SYNC Width Error Relative to Composite SYNC on Y Input 5 % Composite SYNCS on Y tSYNC-DELAY 50% of H & V SYNC Input to Output H & V SYNC Input 40 ns tY-HSYNC-DELAY 50% of H SYNC Input to Output Composite SYNC on Y Input (Not 70 ns During Vertical Period) (1) Datasheet min/max specification limits are specified by design, test, or statistical analysis. The ensured specifications apply only for the test conditions listed. Some performance characteristics may change when the device is not operated under the listed test conditions. (2) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. Copyright © 2005–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LMH1251 |
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