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QS7785CF Datasheet(PDF) 6 Page - Nippon Precision Circuits Inc |
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QS7785CF Datasheet(HTML) 6 Page - Nippon Precision Circuits Inc |
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6 / 15 page  QS7785PF/CF NIPPON PRECISION CIRCUITS—6 AC Characteristics VCC = 9V, VDD = 5V, GND = 0V, Ta = 25°C Parameter Symbol Condition Rating Unit min typ max Bypass-mode maximum input voltage VB BYP = SUR = HIGH, MONO = SP = LOW, LIN = RIN, f = 1kHz 1.7 2.3 – VRMS Qsurround enhanced-mode maximum input voltage VQ+ BYP = MONO = SUR = LOW, SP = HIGH, LIN = RIN, f = 1kHz 1.8 2.4 – VRMS Qsurround-mode maximum input voltage (surround speakers on) VQS BYP = MONO = SP = LOW, SUR = HIGH, LIN = RIN, f = 1kHz 1.3 1.7 – VRMS Mono/stereo conversion enhanced mode maximum input voltage VM+ BYP = SUR = LOW, MONO = SP = HIGH, LIN = RIN, f = 1kHz 0.8 1.0 – VRMS Mono/stereo conversion mode maximum input voltage (surround speakers on) VMS BYP = SP = LOW, MONO = SUR = HIGH, LIN = RIN, f = 1kHz 0.8 1.0 – VRMS Bypass gain GBYP1 BYP = HIGH, MONO = SUR = SP = LOW, LIN to FLOUT, RIN to FROUT, f = 1kHz −20 2dB Bypass gain (surround speakers on) GBYP2 BYP = SUR = HIGH, MONO = SP = LOW, LIN to SLOUT, RIN to SROUT, f = 1kHz −20 2dB Qsurround mode gain GQ BYP = MONO = SUR = SP = LOW, LIN to FLOUT, RIN to FROUT, f = 1kHz 3.9 5.9 7.9 dB Qsurround mode crosstalk gain GQX BYP = MONO = SUR = SP = LOW, LIN to FROUT, RIN to FLOUT, f = 1kHz −1.5 0.5 2.5 dB Qsurround mode gain (surround) GQS BYP = MONO = SP = LOW, SUR = HIGH, LIN to SLOUT, RIN to SROUT, f = 1kHz −2.3 −0.3 1.7 dB Qsurround mode crosstalk gain (surround) GQXS BYP = MONO = SP = LOW, SUR = HIGH, LIN to SROUT, RIN to SLOUT, f = 1kHz −1.9 0.1 2.1 dB Qsurround enhanced mode gain GQ+ BYP = MONO = SUR = LOW, SP = HIGH, LIN to FLOUT, RIN to FROUT, f = 1kHz 4.7 6.7 8.7 dB Qsurround enhanced mode crosstalk gain GQX+ BYP = MONO = SUR = LOW, SP = HIGH, LIN to FROUT, RIN to FLOUT, f = 1kHz 1.3 3.3 5.3 dB Mono/stereo conversion mode left- channel gain GML BYP = SUR = SP = LOW, MONO = HIGH, LIN = RIN, FLOUT, f = 1kHz 2.6 4.6 6.6 dB Mono/stereo conversion mode right- channel gain GMR BYP = SUR = SP = LOW, MONO = HIGH, LIN = RIN, FROUT, f = 1kHz 3.6 5.6 7.6 dB Mono/stereo conversion enhanced mode left-channel gain GML+ BYP = SUR = LOW, MONO = SP = HIGH, LIN = RIN, FLOUT, f = 1kHz 2.4 4.4 6.4 dB Mono/stereo conversion enhanced mode right-channel gain GMR+ BYP = SUR = LOW, MONO = SP = HIGH, LIN = RIN, FROUT, f = 1kHz 3.3 5.3 7.3 dB Mono/stereo conversion mode surround left-channel gain GMSL BYP = SP = LOW, MONO = SUR = HIGH, LIN = RIN, SLOUT, f = 1kHz −3.8 −1.8 0.2 dB Mono/stereo conversion mode surround right-channel gain GMSR BYP = SP = LOW, MONO = SUR = HIGH, LIN = RIN, SROUT, f = 1kHz −1.6 0.4 2.4 dB SCL clock pulse period t0 QS7785PF 100 – – ns SCL clock HIGH-level pulsewidth t1 QS7785PF 40 – – ns SCL clock LOW-level pulsewidth t2 QS7785PF 40 – – ns SDA setup time t3 QS7785PF 15 – – ns SDA hold time t4 QS7785PF 30 – – ns STRB setup time t5 QS7785PF 50 – – ns STRB pulsewidth t6 QS7785PF 100 – – ns STRB hold time t7 QS7785PF 50 – – ns |
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