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TEA0678T Datasheet(PDF) 7 Page - NXP Semiconductors |
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TEA0678T Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 28 page 1996 Jun 06 7 Philips Semiconductors Preliminary specification Dual Dolby* B-type noise reduction circuit, automatic music search, with differential outputs and mute TEA0678 VI(offset)(DC) DC input offset voltage − 2 − mV Ii(bias) input bias current −− 0.4 µA REQ equalization resistor 4.7 5.8 6.9 k Ω RI input resistance head inputs 60 100 − k Ω Av open-loop amplification pin INA1 or INA2 to pin EQA and pin INB1 or INB2 to pin EQB f = 10 kHz 80 86 − dB f = 400 Hz 104 110 − dB VO(offset)(DC) DC offset voltage at pins OUT+ to OUT − pins INA1, INA2, INB1 and INB2 connected to Vref −10 − +10 mV Vmute(offset) MUTE offset voltage at pins OUT+ to OUT − pins INA1, INA2, INB1 and INB2 connected to Vref −10 − +10 mV Vref − VOUTC DC output offset voltage at pins OUTCA and OUTCB NR off; pins INA1, INA2, INB1 and INB2 connected to Vref −0.15 − +0.15 V IO DC output current pins INA1, INA2, INB1 and INB2 connected to Vref pin OUTC to ground −2 −− mA pin OUTC to VCC 0.3 −− mA pin OUT ± to ground −2.5 −− mA pin OUT ± to VCC 2.5 −− mA Ri input resistance output stage at pins INCA and INCB 10 16 − k Ω Zo output impedance at each output OUTA+, OUTA −, OUTB+ and OUTB − − 90 110 Ω dmute mute depth at differential output NR off f = 1 kHz −80 −− dB f = 10 kHz −80 −− dB AMSL AMS threshold level at music to pause NR off;f=10 kHz; see Fig.9 −25 −22 −19 dB AMSH AMS threshold level at pause to music note 3 −24 −21 −18 dB td AMS delay time range f = 10 kHz; 0 dB burst; see Table 1 − 23 to 160 − ms tr AMS rise/delay time f = 10 kHz; 0 dB burst 2 − 10 ms EMC DC offset voltage at pins OUTA −, OUTA+, OUTB+ and OUTB − f = 900 MHz; Vi =3V(RMS); see Figs 11, 12 and13 − 100 − mV SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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