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