TEA6845AH Ver la hoja de datos (PDF) - Philips Electronics
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TEA6845AH Datasheet PDF : 48 Pages
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Philips Semiconductors
New In Car Entertainment (NICE) car radio
Product specification
TEA6845AH; TEA6845H
SYMBOL
PARAMETER
CONDITIONS
MIN.
B
PSRR
bandwidth MPX output CL = 0; RL > 20 kΩ
200
power supply ripple
rejection
fripple = 100 Hz to 20 kHz
−
RL(min)
minimum load resistance
20
Ro(max)
maximum output
−
resistance
CL(max)
maximum load
−
capacitance
MPX MUTE
αmute
muting depth
tatt
attack time MPX mute
tdecay
decay time MPX mute
RDS update: pin TRDSMUTE
during RDS update
CTRDSMUTE = 10 nF
CTRDSMUTE = 10 nF
60
0.75
0.75
Idis
discharge current
Vo = 3 V; audio output muted 24
Ich
charge current
Vo = 3 V; audio output not
−24
muted
DEMODULATOR AFC
GAFC
AFC gain
∆f = 100 kHz
28
RDS MPX output: pin RDSMPX; note 12
Voffset(DC) residual DC offset voltage Ldemod = typical value
Vi = 10 to 80 µV
−
Vi = 80 µV to 800 mV
−
Ldemod = ±6%
Vi = 10 to 80 µV
−
Vi = 80 µV to 800 mV
−
FM IF LEVEL DETECTOR OUTPUT: PIN Vlevel; note 12
Vlevel
DC output voltage
Vi = 10 µV to 1 V
0
Vi < 1 µV; standard setting of 0.2
level DAA
Vi = 1 mV; standard setting of 1.4
level DAA
∆Vlevel
level starting point for
adjustment of step size
standard setting of level slope 30
Vlevel(slope) slope of level voltage
standard setting of level slope 650
∆Vstep
Vlevel(B)
Ro
level slope adjustment of Vi = 1 mV
45
step size
bandwidth of level output Vi = 10 mV; fmod = 22.5 kHz; 200
voltage
standard setting of DAA
output resistance
−
TYP.
−
40
−
−
−
80
1
1
32
−32
32
0.1
10
0.240
25
−
0.6
1.9
40
800
50
300
−
MAX.
−
−
−
500
50
−
1.25
1.25
38
−38
−
1
30
1
500
7
1.1
2.5
50
950
75
−
500
UNIT
kHz
dB
kΩ
Ω
pF
dB
ms
ms
µA
µA
dB
V
mV
V
mV
V
V
V
mV
2----0m-----Vd---B---
2----0m-----Vd---B---
mV
Ω
2001 Apr 12
23
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