Philips Semiconductors
Product specification
New In Car Entertainment (NICE) car radio
TEA6845AH; TEA6845H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
AM IF2 AGC STAGE: PINS AMIF2IN AND AMIF2DEC; note 8
Vi
input voltage
for α = −10 dB audio
attenuation
AM soft mute on
AM soft mute off
−
−
−
1
75
6
120
µV
10
30
−
µV
µV
V
VAGC(start)
VAGC(stop)
VAGC(ctrl)
∆AGC
AGC start voltage
AGC stop voltage
AGC control voltage
AGC range
input carrier voltage
maximum input peak voltage
Vi = 1 mV
14
−
4.1
4.3
89
4.7
−
V
between start and stop of
AGC; m = 0.8
−
dB
Ri
Ci
input resistance
1.8
2
2.2
5
kΩ
input capacitance
−
−
pF
AM DETECTOR
Vsens(rms)
sensitivity voltage
(RMS value)
m = 0.3; fmod = 400 Hz;
BAF = 2.5 kHz; Rgen = 2 kΩ;
note 8
(S+N)/N = 26 dB
(S+N)/N = 46 dB
−
45
65
900
−
µV
µV
dB
−
600
60
(S+N)/N
THD
maximum signal plus
noise-to-noise ratio
m = 0.3; fmod = 400 Hz;
54
BAF = 2.5 kHz; Rgen = 2 kΩ
total harmonic distortion
BAF = 2.5 kHz; CAGC = 22 µF;
AM IF2 AGC input
Vi = 100 µV to 500 mV (RMS)
m = 0.8; fmod = 400 Hz
m = 0.9; fmod = 400 Hz
m = 0.8; fmod = 100 Hz
m = 0.9; fmod = 100 Hz
−
−
−
−
0.5
1
1
%
%
%
%
dB
2
1.25
1.75
40
2.5
3.5
−
RR
ripple rejection
VDDA2(ripple) = 100 mV (RMS); 30
fripple = 100 Hz;
tsw
FM to AM switching time
AM AGC settling time
CAGC = 22 µF
CAGC = 22 µF
normal operation
test mode
−
1000
1500
ms
tsettle
−
−
−
−
1800
180
ms
ms
Output: pin AMAFIF2
Vo(rms)
AM IF2 output voltage
AM stereo; m = 0
(RMS value)
minimum at Vi = 14 µV
maximum at Vi = 5.0 mV
1.5
3
4.5
mV
mV
mV
130
240
180
290
230
340
AM mono; m = 0.3;
fmod = 400 Hz;
Vi = 100 µV to 500 mV (RMS)
Ro
output resistance
AM stereo
AM mono
−
−
−
−
500
500
Ω
Ω
2001 Apr 12
18
NXP [ NXP ]
