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TEA0678T Datasheet(PDF) 7 Page - NXP Semiconductors

No. de pieza TEA0678T
Descripción Electrónicos  Dual Dolby* B-type noise reduction circuit, automatic music search, with differential outputs and mute
Download  28 Pages
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA0678T Datasheet(HTML) 7 Page - NXP Semiconductors

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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
RI
input resistance head inputs
60
100
k
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
Zo
output impedance at each
output OUTA+, OUTA
−,
OUTB+ and OUTB
90
110
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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