Philips Semiconductors
Product specification
New In Car Entertainment (NICE) car radio
TEA6845AH; TEA6845H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
FM DEMODULATOR
Limiter decoupling: pin FMLIMDEC
RL
CL
load resistance
20
−
−
−
kΩ
load capacitance
−
50
pF
RDS MPX inputs: pins FMLIMIN and FMLIMDEC; note 12
Vstart(lim)(rms) start of limiting of RDS
MPX output voltage
αAF = −3 dB
−
10
15
µV
(RMS value)
RDS MPX output: pin QRDSMPX
Vo(rms)
RDS MPX output voltage ∆f = 22.5 kHz; fmod = 57 kHz; 180
230
280
100
mV
(RMS value)
Vi = 20 µV to 1 V; note 12
Io(max)
maximum RDS MPX
output current
−
−
µA
Ro
B
output resistance
−
−
500
Ω
bandwidth RDS MPX
output
CL = 0; RL > 20 kΩ
200
300
−
kHz
PSRR
power supply ripple
rejection
fripple = 100 Hz to 20 kHz
−
−
40
10
−
dB
FM RDS inputs: pins FMLIMIN and FMLIMDEC; note 12
Vstart(lim)(rms) start of limiting of MPX
output voltage
αAF = −3 dB
15
µV
(RMS value)
Vo(sens)(rms) sensitivity for MPX output ∆f = 22.5 kHz; fmod = 1 kHz;
voltage (RMS value)
de-emphasis = 75 µs
(S+N)/N = 26 dB
(S+N)/N = 46 dB
−
−
10
50
15
75
µV
µV
FM MPX output: pin FMMPX; note 12
Vo(rms)
MPX output voltage
(RMS value)
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 75 µs;
Vi = 20 µV to 1 V;
180
230
280
mV
αAM
AM suppression of MPX
output
∆f = 22.5 kHz; fmod = 1 kHz;
m = 0.3; de-emphasis = 75 µs
Vi = 500 µV to 300 mV
Vi = 20 to 500 µV
50
−
60
40
40
−
−
dB
dB
dB
µA
−
Vi = 300 mV to 1 V
−
−
Io(max)
maximum MPX output
current
−
100
(S+N)/N
maximum signal plus
noise-to-noise ratio of
MPX output voltage
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 75 µs;
Vi = 10 mV;
67
70
−
dB
%
THD
total harmonic distortion of ∆f = 75 kHz; fmod = 1 kHz;
−
0.35
0.7
MPX output voltage
de-emphasis = 75 µs;
Vi = 200 µV to 800 mV
2001 Apr 12
22
NXP [ NXP ]
