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MAX9670 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX9670 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 42 page Low-Power Audio/Video Switch with Audio Volume Control for Dual SCART Connectors _______________________________________________________________________________________ 3 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS AC-COUPLED INPUT Sync-Tip Clamp Level VCLP Sync-tip clamp -13 -4 +6 mV Sync Crush Sync-tip clamp; percentage reduction in sync pulse (0.3VP-P); guaranteed by input clamping current measurement, TA = +25°C 2% Input Clamping Current Sync-tip clamp, VIN = 0.3V, TA = +25°C 1 2 µA Maximum Input Source Resistance Input sync-tip circuit must be stable even if the source resistance is as high as 300 Ω 300 Ω Bias circuit 0.57 0.6 0.63 Input Voltage High-impedance input circuit 0.3 x VVID 0.36 x VVID V Bias circuit 10 Input Resistance High-impedance input circuit 222 k Ω DC CHARACTERISTICS DC Voltage Gain Av Guaranteed by output voltage swing 1.95 2 2.05 V/V DC Gain Mismatch Among R, G, and B Outputs Guaranteed by output voltage swing of TV_R/C_OUT, TV_G_OUT, and TV_B_OUT; first input signal set is VCR_R/C_IN, VCR_G_IN, and VCR_B_IN; second signal set is ENC_R/C_IN, ENC_G_IN, and ENC_B_IN -2 +2 % Sync-tip clamp (VIN = VCLP) 0.1 0.30 0.51 Output Level Bias circuit 1.3 1.5 1.78 V Sync-tip clamp, measured at output, VVID = 3V, VIN = VCLP to (VCLP +1.15V), RL = 150 Ω to VVID/2, RL = 75Ω to GNDVID 2.3 Measured at output, VVID = 3.135V, VIN = VCLP to (VCLP + 1.15V), RL = 150 Ω to VVID/2, RL = 75 Ω to GNDVID 2.243 2.3 2.358 Bias circuit, measured at output, VVID = 3V, VIN = (VBIAS - 0.575V) to (VBIAS + 0.575V), RL = 150 Ω to VVID/2, RL = 75Ω to GNDVID 2.3 Output Voltage Swing Measured at output, VVID = 3.135V, VIN = (VBIAS - 0.575V) to (VBIAS + 0.575V), RL = 150 Ω to VVID/2, RL = 75Ω to GNDVID 2.243 2.3 2.358 VP-P Output Short-Circuit Current 100 mA Output Resistance ROUT 0.5 Ω Output Leakage Current Output disabled (load detection not active) 170 µA Power-Supply Rejection Ratio 3V ≤ VVID ≤ 3.6V 35 dB ELECTRICAL CHARACTERISTICS (continued) (V12 = 12V, VVID = VAUD = 3.3V, VGNDVID = VEP = 0V, no load, TA = 0°C to +70°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) |
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