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TEA0679 Arkusz danych(PDF) 8 Page - NXP Semiconductors

Numer części TEA0679
Szczegółowy opis  I2C-bus controlled dual Dolby* B-type noise reduction circuit for playback applications
Download  40 Pages
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Producent  PHILIPS [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA0679 Arkusz danych(HTML) 8 Page - NXP Semiconductors

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1998 Nov 12
8
Philips Semiconductors
Product specification
I2C-bus controlled dual Dolby* B-type noise
reduction circuit for playback applications
TEA0679T
IO
DC output current
pins OUTA and OUTB
connected to ground
−2
−−
mA
pins OUTA and OUTB
connected to VCC
0.3
−−
mA
Zo
output impedance
80
100
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
Voffset(DC)
DC offset voltage at pins OUTA
and OUTB
f = 900 MHz; Vi(rms) =6V
40
mV
Voffset(AD)
overall offset voltage between
AGND (pin 20) and DGND
(pin 29)
−0.4
+0.4
V
Level adjustment
GCR
gain control range
note 1
24.2
25.2
26.2
dB
Gstep
step size
0.4
dB
GE
step error between any
adjacent step
−−
0.4
dB
Switching thresholds
OPTIONAL EQUALIZATION TIME CONSTANT SWITCH (pin EQS)
VIL
LOW-level input voltage
70
µs; IL ≥−200 µA
−0.3
+0.8
V
VOL
LOW-level output voltage
70
µs; IL ≤ 1mA
−−
0.4
V
VIH
HIGH-level input voltage
120
µs2
−−
V
VOH
HIGH-level output voltage
120
µs; IL ≥−50 µA
2.8
3.3
V
OPTIONAL HEAD SWITCH (pin HS)
VIL
LOW-level input voltage
INPUT 2 on; IL ≥−150 µA
−0.3
+0.8
V
VOL
LOW-level output voltage
INPUT 2 on; IL ≤ 10 µA
−−
0.4
V
VIH
HIGH-level input voltage
INPUT 1 on
2
−−
V
VOH
HIGH-level output voltage
INPUT 1 on; IL ≥−50 µA
2.8
3.3
V
Search modes
BLANK SKIP
BSth(M-P)
dynamic level threshold
blank skip mode; f = 10 kHz
−30
−27
−24
dB
tsw(P-M)
switching time pause-to-music
blank skip mode; f = 10 kHz;
signal on channel A and B;
note 2
2.1
4.15
6.3
ms
blank skip mode; f = 10 kHz;
signal on one channel; note 2
4.1
8.3
12.5
ms
tsw(M-P)
switching time music-to-pause
blank skip mode; f = 10 kHz;
note 2
10
19
30
ms
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT


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