TEA0679 NXP Semiconductors, TEA0679 Datasheet - Page 8

• Manufacturer Part Number: TEA0679
• Description: I2c-bus Controlled dual Dolby* B-type Noise Reduction Circuit for Playback Applications
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1998 Nov 12
I
Z
V
V
V
V
Level adjustment
G
G
G
Switching thresholds
O
V
V
V
V
O
V
V
V
V
Search modes
B
BS
t
t
O
sw(P-M)
sw(M-P)
SYMBOL
o
no(rms)
TD
offset(DC)
offset(AD)
IL
OL
IH
OH
IL
OL
IH
OH
LANK SKIP
I
reduction circuit for playback applications
CR
step
E
PTIONAL EQUALIZATION TIME CONSTANT SWITCH
PTIONAL HEAD SWITCH
2
th(M-P)
C-bus controlled dual Dolby* B-type noise
DC output current
output impedance
equivalent input noise voltage
(RMS value)
AMS timing (DC level)
DC offset voltage at pins OUTA
and OUTB
overall offset voltage between
AGND (pin 20) and DGND
(pin 29)
gain control range
step size
step error between any
adjacent step
LOW-level input voltage
LOW-level output voltage
HIGH-level input voltage
HIGH-level output voltage
LOW-level input voltage
LOW-level output voltage
HIGH-level input voltage
HIGH-level output voltage
dynamic level threshold
switching time pause-to-music
switching time music-to-pause
PARAMETER
(pin HS)
(pin EQS)
connected to ground
pins OUTA and OUTB
connected to V
NR off; unweighted;
f = 20 Hz to 20 kHz;
R
f = 900 MHz; V
signal on channel A and B;
note 2
blank skip mode; f = 10 kHz;
signal on one channel; note 2
note 2
pins OUTA and OUTB
resistor R
note 1
70 s; I
70 s; I
120 s
120 s; I
INPUT 2 on; I
INPUT 2 on; I
INPUT 1 on
INPUT 1 on; I
blank skip mode; f = 10 kHz
blank skip mode; f = 10 kHz;
blank skip mode; f = 10 kHz;
source
= 0
L
L
CONDITIONS
L
t
connected to pin TD V
8
1 mA
200 A
50 A
L
L
L
CC
i(rms)
10 A
150 A
50 A
= 6 V
0.3
24.2
2
2.8
2
2.8
2.1
4.1
10
2
0.4
0.3
0.3
30
CC
MIN.
3
80
0.7
40
25.2
0.4
4.15
8.3
19
27
TYP.
Product specification
TEA0679T
100
1.4
V
+0.4
26.2
0.4
+0.8
0.4
3.3
+0.8
0.4
3.3
6.3
12.5
30
MAX.
24
CC
mA
mA
V
mV
V
dB
dB
dB
V
V
V
V
V
V
V
V
dB
ms
ms
ms
UNIT
V