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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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BA7181FS датащи(PDF) 3 Page - Rohm |
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BA7181FS датащи(HTML) 3 Page - Rohm |
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3 / 8 page  3 Video ICs BA7181FS Note: dBc: dB below carrier (used to express relative level from carrier reference for convenience sake). ∗ Design reference values. Parameter Symbol Min. Typ. Max. Unit Conditions 〈Playback system〉 Output DC offset Input conversion noise∗ AGC output level AGC control sensitivity AGC amp frequency characteristic∗ PB switch ON resistance∗ PRE CH 2 threshold voltage PRE CH 1 threshold voltage ENVE residual voltage ENVE output level ENVE saturation voltage PB mode holding voltage EE mode holding voltage REC mode holding voltage Pin 14 output DC offset for pin 1: H / L Rg = 10 Ω, input conversion of pin 14 output noise VIN = 0.3mVP-P, pin 18 output measurement Pin 18 output difference for VIN = 0.15 ~ 0.6mVP-P Pin 18 output level difference for f = 8.0 / 1.0MHz, VIN = 0.3mVP-P Pin 7 impedance Pin 1 DC voltage for channel 2 operation Pin 1 DC voltage for channel 1 operation Pin 13 output measurement with no signal Pin 13 output measurement when pin 14 output = 400mVP-P Pin 13 output measurement for large signal Pin 8 DC voltage for PB mode Pin 8 DC voltage for REC MUTE mode Pin 8 DC voltage for REC mode ∆VODC — 0 150 mVP-P Fig.1 VNIN — 0.25 — µVrms Fig.1 VAGC 250 300 350 mVP-P Fig.1 ∆VAGC — 0.3 2.0 dB Fig.1 ∆GVAF — 0.5 — dB Fig.1 RON7 —4 — Ω Fig.1 VTH1H 3.5 — VCC V Fig.1 VTH1L 0 — 1.2 V Fig.1 VENV1 — 0.7 1.0 V Fig.1 VENV2 2.4 2.9 3.4 V Fig.1 VENV3 4.0 4.5 — V Fig.1 VTH10H 3.8 — VCC V Fig.1 VTH10M 2.2 — 2.8 V Fig.1 VTH10L 0 — 1.2 V Fig.1 Measurement circuit (Fig. 1 measurement circuit, pin 8: “H” ) (unless otherwise noted, Ta = 25°C, VCC = 5.0V, f = 4.0MHz and IOAR = 30mAP-P) Parameter Symbol Min. Typ. Max. Unit 〈Recording system〉 Supply current Recording AGC level AGC control sensitivity REC Amp frequency characteristic∗ 2nd harmonic distortion∗ 3rd harmonic distortion∗ Cross modulation distortion∗ Maximum output level Recording current load characteristic∗ Mute attenuation ratio AGC mode holding voltage AGC mode holding voltage Iq(R) — 72 110 mAP-P Fig.2 IOAR 27 30 33 mA Fig.2 ∆IOAR — 0.3 1.5 dB Fig.2 ∆IOAF — – 1.5 — dB Fig.2 2HDR — – 45 — dBc Fig.2 3HDR — – 50 — dBc Fig.2 CMDR — – 50 — dBc Fig.2 IOMR 40 50 — mAP-P Fig.2 ∆IORL — – 0.35 — dB Fig.2 MUR — – 45 – 38 dBc Fig.2 VTH15H 2.7 — V Fig.2 VTH15L 0 — 1.2 V Fig.2 No signal Pin 12 input = 125mVP-P, pin 7 output measurement Pin 7 output level difference for pin 12 input = 62.5mVP-P and 250mVP-P Pin 7 output level difference for f = 8.0 / 1.0MHz, pin 12 input = 125mVP-P Pin 12 input = 125mVP-P, 8MHz spurious Pin 12 input = 125mVP-P, 12.0MHz spurious 4.0MHz ± 630kHz spurious When pin 7 output 2nd harmonic distortion is – 30dB Pin 7 output level difference for load L: 8.2 ~ 12 µH Pin 7 output level difference for pin 8: M / H Pin 15 DC voltage to maintain recording AGC operation Pin 15 DC voltage to maintain recording AGC stopped Conditions VCC Measurement circuit (Pin 8 in Fig. 2 measurement circuit “L” ) ∗ Design reference values. |
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