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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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BA7745FS датащи(PDF) 4 Page - Rohm |
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BA7745FS датащи(HTML) 4 Page - Rohm |
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4 / 8 page  4 Video ICs BA7745FS Playback system (unless otherwise noted, Ta = 25°C, VCC = 5V, and f = 1.5MHz) Parameter Symbol Min. Typ. Max. Unit Conditions Iq (PB) — 19.0 31.0 mA GVP1 80 83 86 dB GVP2 80 83 86 dB ∆GVP – 2.0 0 + 2.0 dB CT1→2 — – 40 – 35 dB CT2→1 — – 40 – 35 dB fP1 0 – 2.4 – 5 dB fP2 0 – 2.4 – 5 dB 17pin: “L” 11pin: 2.0V 23pin, 20.5dB µIN, 10pin OUT, 8pin: “H” 25pin, 20.5dB µIN, 10pin OUT, 8pin: “L” 23pin 31.0dB µ, 25pin 0 IN, 23pin 0, 25pin 31.0dB µIN, 23pin 20.5dB µIN, 8pin: “H” f = 2.2MHz / 1.0MHz, ∆10pin OUT 25pin 20.5dB µIN, 8pin: “L” f = 2.2MHz / 1.0MHz, ∆10pin OUT – ∆GVCA — – 40 – 30 dB + ∆GVCA + 4 + 6 — dB VOMP 2.0 2.6 — VP-P VNP1 — 0.4 1.0 µVrms VNP2 — 0.4 1.0 µVrms VHS2 0.0 — 2.2 V VHS1 2.8 — VCC V ∆VODC – 20 0 + 20 mV V17L 0.0 — 1.0 V V17H 3.5 — VCC V RSWP —5 10 Ω V9L 0.0 — — 2.2 V V9H 3.5 VCC V GVP. EP 4.0 5.0 6.0 dB 8pin: “H” → “L”, ∆10pin OUT 8pin: “H” → “L”, ∆10pin OUT 11pin 2.0V →0.8V, ∆10pin OUT 11pin 2.0V →3.3V, ∆10pin OUT 23pin, 25pin, 20.5dB µIN, ∆10pin OUT 〈Playback mode〉 Supply current Voltage gain CH1 Voltage gain CH2 Voltage gain differential CH1 to CH2 crosstalk CH2 to CH1 crosstalk CH1 frequency characteristic CH2 frequency characteristic Gain adjustment headroom Gain adjustment headroom Maximum output voltage CH1 input conversion noise CH2 input conversion noise Head switch voltage Head switch voltage Output DC offset PB holding voltage REC holding voltage Head switch-on resistance SP holding voltage EP holding voltage Gain emphasis EP Inflow current to pin 12 when no signal. Pin 23 and 25 IN, pin 10 OUT 3rd-harmonic distortion, when -30dB. Input conversion for pin 23: 0.01 µF + 10Ω at GND Pin 8: “H”, pin 10 OUT. Input conversion for pin 25: 0.01 µF + 10Ω at GND Pin 8: “L”, pin 10 OUT. Pin 8 DC when CH2 operating Pin 8 DC when CH1 operating 23, 25pin 0 IN, 8pin: “H” → “L”, ∆10pin OUT Pin 17 DC for PB mode Pin 17 DC for REC mode Pin 20 ON resistance Pin 9 DC for SP mode Pin 9 DC for EP mode 23, 25pin 20.5dB µIN, 9pin: “H”, 10pin OUT •Design reference values Flying erase system (unless otherwise noted, Ta = 25°C, VCC = 11.0V) Parameter Symbol Min. Typ. Max. Unit Conditions 5pin: “H” Iq (FE) — 12.0 — mA V2 — 5.5 — V 2pin DC V3 — 5.5 — V 3pin DC V6 — 1.0 — V 6pin DC V32 — 4.3 — V 32pin DC f32 8 — 13 MHz 32pin OUT υ32 — 2.8 — VP-P 32pin OUT V5H 4.0 — VCC V 0 — 0.5 V V5L 5pin DC, When FE ON 5pin DC, When FE OFF 〈Flying erase mode〉 Supply current Pin 2 voltage Pin 3 voltage Pin 6 voltage Pin 32 voltage Oscillator frequency range Output amplitude range FE ON holding voltage FE OFF holding voltage ∗ The values given above are design values, they are not ratings and are not guaranteed. Pin 31 inflow current |
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