TEA6825T PHILIPS [NXP Semiconductors], TEA6825T Datasheet - Page 15

• Manufacturer Part Number: TEA6825T
• Description: In Car Entertainment ICE car radio
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1998 Mar 24
Muting functions (mute via I
High-cut control; see Fig.18
V
t
Voltage controlled oscillator; note 4
f
Noise blanker
I
t
T
I
I
T
V
V
V
V
I
de-emph
osc
NTERFERENCE DETECTION FULLY INTERNAL FROM LEVEL DETECTOR
sup
ch
dch
offset
V
RIGGER THRESHOLD CONTROL
RIGGER SENSITIVITY MEASUREMENT WITH PULSED MODULATION OF
V
V
mute
18
37-35(p)
51
37th
46
In Car Entertainment (ICE) car radio
SYMBOL
44
51
37th
, V
/V
0.75V
/ I
37(3dB)
46
41
21
DC offset voltage
tune mute
radio mute (in combination with
tune mute)
control voltage
control range of de-emphasis
oscillator frequency
interference suppression time
charge current (into +4 V)
discharge current (from +8.5 V)
trigger sensitivity for test signal 1
(peak value)
trigger sensitivity for test signal 2
(peak value)
trigger threshold variation with
frequency modulation of FM-IF
and f
shift of threshold for triggering
from MPX signal
shift of threshold as function of I
bias voltage (pin 46)
gate input offset current at pins 31
and 32 during suppression pulse
duration
mod
= 15 kHz (pin 51)
PARAMETER
2
C-bus)
2
46
tune mute
radio mute (in combination
with tune mute)
note 3
V
V
V
V
V
V
I
I
I
46
46
46
38
38
38
38
37-35
37-35
t
t
de-emph
de-emph
= 0
< 0
> 0
15
= 2.52 V; note 5
= 2.52 V; note 6
= 2.52 V; note 6
= 2.52 V; note 6
= 100 mV; f = 0 kHz
= 100 mV; f = 40 kHz
CONDITIONS
= 50 s
= 80 s
FM-IF
2
; see Figs 19 and 20
TEA6823T; TEA6825T
60
80
0
50
225
40
100
5.0
100
14
4.0
5.3
MIN.
50
400
300
0.32
228
50
45
6.4
250
20
4.3
5.7
20
Preliminary specification
TYP.
900
0.25
+50
+400
80
231
0.5
26
4.7
6.1
50
MAX.
0.16
mV
mV
dB
dB
mV
mV
kHz
mV
mV
mV
mV
V
mV
dB
dB/ A
V
V
nA
UNIT
s
s
A
A