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TEA0675T Scheda tecnica(PDF) 7 Page - NXP Semiconductors |
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TEA0675T Scheda tecnica(HTML) 7 Page - NXP Semiconductors |
7 / 32 page 1996 Jun 07 7 Philips Semiconductors Preliminary specification Dual Dolby* B-type noise reduction circuit for playback applications TEA0675 Vref − VOUT DC output offset voltage at pins OUTA and OUTB NR off; pins INA1, INA2, INB1 and INB2 connected to Vref −0.15 − +0.15 V IO DC output current pin OUTA to ground −2 −− mA pin OUTB to VCC 0.3 −− mA Zo output impedance − 80 100 Ω Vno(rms) equivalent input noise voltage (RMS value) NR off; unweighted; f = 20 Hz to 20 kHz; Rsource =0 Ω − 0.7 1.4 µV VTD AMS timing (DC level) resistor Rt connected to pin TD VCC − 3 − VCC V EMC DC offset voltage at pins OUTA and OUTB f = 900 MHz; Vi(rms)=6V; see Figs 26, 27 and 28 − 40 − mV Switching thresholds VNROFF voltage at HPB (pin 21) NR off 0.19VCC 0.23VCC 0.25VCC V INROFF output current NR off −−0.7 −1mA INRON input current NR on − open 200 nA VHPB(max) maximum voltage −− 0.75VCC V HPA (PIN 4) VAMSlON pin voltage AMS-latch on 0.19VCC 0.23VCC 0.25VCC V IAMSlON output current −−0.7 −1mA VAMSsON pin voltage AMS-scan on 0.75VCC 0.77VCC 0.81VCC V IAMSsON input current − 0.8 1 mA IAMSOFF pin current AMS off − open 200 nA VHPA(max) maximum voltage −− 0.75VCC V AMSEQ (PIN 19) AMS output (AMS mode) VOH HIGH level output voltage 4 4.6 5 V IOH1 HIGH level output current note 1 +10 −−150 µA IOH2 HIGH level output current note 1 +0.01 −−1mA td minimum pulse width; delay time range see Table 1 − 23 to 160 − ms VOL LOW level output voltage − 0.1 0.7 V IOL LOW level output current −0.02 − +1 mA tr minimum pulse width rise time AMS-scan mode 2 6 10 ms AMS-latch mode 130 150 170 ms AM/P signal level at output for AMS switching music to pause AMS mode; f = 10 kHz; note 2; see Fig.24 −25 −22 −19 dB SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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