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