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| Video ICs FG / CTL amplifer BA6305 / BA6305F The BA6305 and BA6305F are fast-response wave-shaping preamplifiers for use in VCR CTL amplifiers, They meet the fast REC mode to PB mode response required in VCR CTL amplifiers. The ICs contain a fast-response preamplifier (with precharge function) and a noise-rejecting hysteresis amplifier that converts the CTL signal to a rectangular-wave output. The hysteresis width can be switched between two levels to maintain the S / N ratio, and provide compatibility with various tape speeds. *Applications VCR CTL amplifiers VCR FG amplifiers VCR DTP amplifiers Other preamplifier and hysteresis amplifier applications *Features from strong input when recording to 1) Fast response CTL signal playback when playing. 2) High gain. 3) Schmitt trigger circuit ensures high S / N ratio, and accurate hysteresis width and level. 4) The hysteresis comparator level can be switched to suit the CTL amplifier level. 5) Compact SIP8 pin and SOP8 pin packages. *Block diagram BA6305 BA6305F 8 7 6 5 VCC + PRE AMP. - HYSTERESIS AMP. GND HYSTERESIS AMP. VCC + PRE AMP. - GND 1 2 3 4 5 6 7 8 1 2 3 4 1 Video ICs BA6305 / BA6305F *Absolute maximum ratings (Ta = 25C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 15 400 - 20 ~ + 70 - 55 ~ + 125 Unit V mW C C Reduced by 4.0mW for each increase in Ta of 1C over 25C. *Electrical characteristics (unless otherwise noted, Ta = 25C and VCC = 9V) Parameter Operating voltage Quiescent current Preamplifier bias voltage Small-signal preamplifier input resistance Large-signal preamplifier input resistance Preamplifier bias input current Preamplifier output level Preamplifier open loop voltage gain Preamplifier input conversion noise voltage Schmitt circuit input bias potential Schmitt circuit hysteresis width 1 Schmitt circuit hysteresis width 2 Schmitt circuit output level Symbol VCC IQ VB pre RINS REN IB pre VO pre GVO VN pre VB hys Vhys 1 Vhys 2 Vohys Min. 4.5 0.6 1.0 20 2.1 -- 2.0 64.0 -- 1.6 70 200 5.1 Typ. -- 1.5 1.3 30 4.4 30 2.4 72.5 3.4 2.0 90 250 6.6 Max. 13.0 2.6 1.6 40 9.0 300 -- -- 12.0 2.4 130 360 -- Unit V mA V k k nA VP-P dB V rms V mVO-P mVO-P VP-P RL = 20k VIN = 1.0V VIN = 5.0V -- -- RNF = 330k DIN Audio Rg = 2.2k -- -- -- Conditions -- -- -- The switching time from REC mode to PB mode is 1 sec. (Max.), and the power on start up time is 3 sec. (Max.). *External dimensions (Units: mm) BA6305 BA6305F 5.0 0.2 19.3 0.2 10.5 0.5 5.8 0.2 2.8 0.2 8 6.2 0.3 4.4 0.2 5 1.2 1 3.5 0.5 2.54 8 0.6 0.8 1.3 0.3 0.1 1.5 0.1 1 4 0.11 1.27 0.4 0.1 0.3Min. 0.15 SIP8 SOP8 2 0.15 0.1 |
Price & Availability of A5800782
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