TEA0679 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
TEA0679
Philips Electronics
TEA0679 Datasheet PDF : 40 Pages
| |||
Philips Semiconductors
I2C-bus controlled dual Dolby* B-type noise
reduction circuit for playback applications
Product specification
TEA0679T
SYMBOL
IO
Zo
Vno(rms)
VTD
Voffset(DC)
Voffset(AD)
PARAMETER
CONDITIONS
MIN. TYP.
DC output current
pins OUTA and OUTB
connected to ground
−2
−
output impedance
pins OUTA and OUTB
connected to VCC
0.3
−
−
80
equivalent input noise voltage NR off; unweighted;
−
0.7
(RMS value)
f = 20 Hz to 20 kHz;
Rsource = 0 Ω
AMS timing (DC level)
resistor Rt connected to pin TD VCC − 3 −
DC offset voltage at pins OUTA f = 900 MHz; Vi(rms) = 6 V
−
40
and OUTB
overall offset voltage between
AGND (pin 20) and DGND
(pin 29)
−0.4 −
Level adjustment
GCR
Gstep
GE
gain control range
step size
step error between any
adjacent step
note 1
24.2 25.2
−
0.4
−
−
Switching thresholds
OPTIONAL EQUALIZATION TIME CONSTANT SWITCH (pin EQS)
VIL
LOW-level input voltage
70 µs; IL ≥ −200 µA
VOL
LOW-level output voltage
70 µs; IL ≤ 1 mA
VIH
HIGH-level input voltage
120 µs
VOH
HIGH-level output voltage
120 µs; IL ≥ −50 µA
OPTIONAL HEAD SWITCH (pin HS)
VIL
LOW-level input voltage
INPUT 2 on; IL ≥ −150 µA
VOL
LOW-level output voltage
INPUT 2 on; IL ≤ 10 µA
VIH
HIGH-level input voltage
INPUT 1 on
VOH
HIGH-level output voltage
INPUT 1 on; IL ≥ −50 µA
Search modes
−0.3 −
−
−
2
−
2.8
−
−0.3 −
−
−
2
−
2.8
−
BLANK SKIP
BSth(M-P)
tsw(P-M)
dynamic level threshold
blank skip mode; f = 10 kHz −30
switching time pause-to-music blank skip mode; f = 10 kHz; 2.1
signal on channel A and B;
note 2
blank skip mode; f = 10 kHz; 4.1
signal on one channel; note 2
tsw(M-P)
switching time music-to-pause blank skip mode; f = 10 kHz; 10
note 2
−27
4.15
8.3
19
MAX.
−
−
100
1.4
VCC
−
+0.4
26.2
−
0.4
+0.8
0.4
−
3.3
+0.8
0.4
−
3.3
−24
6.3
12.5
30
UNIT
mA
mA
Ω
µV
V
mV
V
dB
dB
dB
V
V
V
V
V
V
V
V
dB
ms
ms
ms
1998 Nov 12
8
Share Link: