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TEA2128 データシート(PDF) 5 Page - STMicroelectronics |
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TEA2128 データシート(HTML) 5 Page - STMicroelectronics |
5 / 8 page ELECTRICAL CHARACTERISTICS (continued) (TAMB =25 oC; VCC = 12V; Pulse duration 50% of the amplitude) Symbol Parameter Pins Test conditions Min. Typ. Max. Unit SUPER SANDCASTLE GENERATOR (continued) Burst Pulse Duration 21 21 q 50Hz q 60Hz 4.4 3.9 µs µs Line Blanking Duration 22 Fixed by flyback Signal pin 22 Frame Blanking Duration 21 Fixed by the logic 21 Line FRAME SAW-TO OTH GENERATOR Low DC Voltage 24 1.3 V Discharge Current 1 15 60 mA 60Hz Internal 1 8 µA FRAME LOGIC SYNCH. Free Running Period 1-24 Without video signal 315 Line Synchronization Windows Identification low Identification 50Hz high Identification 60Hz high VCR mode 247 309 247 247 361 315 277 361 Line Line Line Line FRAME SAFETY INPUT Switching Threshold 15 Actived without negative pulse during frame blanking time. 1.3 V Output current 40 50 67 µA S.M.P.S. Input Current 10 VPin 10 =VREF 2 µA Transfer Characteristic ∆t Pin 11 / ∆VPin 10 1.9 µs/µV tON (max.) 11 28 µs tON (min.) 11 1 µs High Level Voltage 11 Rload / GND = 500 Ω 9V SOFT- START VCC Starting Voltage for Line and S.M.P.S. 13 VCC rising 7 7.4 V Switch-off Voltage For Line and S.M.P.S. Output 13 VCC decreasing 6.5 V Discharge Current 9 q Before soft start period, VCC >7V VPin 9 >Vmax. Pin 17 q During soft start period, VCC >7V VPin 9 <Vmax. Pin 17 60 2.3 µA µA CURRENT REFERENCE V18 Voltage 18 R18 = 3.32 k Ω (1%) 1.21 1.3 1.39 V Temperature Shift 18 ∆T= 80oC ± 1 % GENERAL DESCRIPTION Introduction This integrated circuit uses high density I2L bipolar technologyand combines analog signal processing with digital processing. Timing signals are obtained from a voltage-control- led oscillator (VCO) operating at 500kHz by means of a cheap ceramic resonator. This avoid the fre- quency adjustment normally required with line and frame oscillators. A chain of dividers and appropriate logic circuitry produces very accurate defined sampling pulses and the necessary timing signals. Internal Functions - Horizontal scanning processor - Frame scanning processor - B class frame output stage using an external power amplifier with flyback generator - Line and frame synchronization separation - Dual phase-locked loop horizontal scanning TEA2128 5/8 |
同様の部品番号 - TEA2128 |
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同様の説明 - TEA2128 |
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