TEA5768HL Просмотр технического описания (PDF) - Philips Electronics
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TEA5768HL Datasheet PDF : 36 Pages
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Philips Semiconductors
Low-power FM stereo radio for
handheld applications
Product specification
TEA5768HL
SYMBOL
PARAMETER
CONDITIONS
MIN.
FM demodulator: pin MPXO
VMPXO
(S+N)/N
THD
αAM
Ro
Isink
demodulator output voltage VRF = 1 mV; L = R;
60
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 75 µs;
BAF = 300 Hz to 15 kHz
maximum signal plus
noise-to-noise ratio
total harmonic distortion
VRF = 1 mV; L = R;
54
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 75 µs;
BAF = 300 Hz to 15 kHz
VRF = 1 mV; L = R; ∆f = 75 kHz; −
fmod = 1 kHz;
de-emphasis = 75 µs
AM suppression
demodulator output
resistance
VRF = 300 µV; L = R;
40
∆f = 22.5 kHz; fmod = 1 kHz;
m = 0.3; de-emphasis = 75 µs;
BAF = 300 Hz to 15 kHz
−
demodulator output sink
−
current
Soft mute
VRF
RF input voltage for soft
αmute = 3 dB; data byte 4
3
mute start
bit 3 = 1
αmute
mute attenuation
VRF = 1 µV; L = R;
10
∆f = 22.5 kHz; fmod = 1 kHz
de-emphasis = 75 µs;
BAF = 300 Hz to 15 kHz;
data byte 4 bit 3 = 1
MPX decoder
VAFL; VAFR left and right audio
VRF = 1 mV; L = R;
60
frequency output voltage ∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 75 µs
RAFL; RAFR left and right audio
−
frequency output resistance
Isink(AFL); left and right audio
170
Isink(AFR) frequency output sink
current
VMPXIN(max)
VAFL/VAFR
input overdrive margin
left and right audio
frequency output voltage
difference
THD < 3 %
4
VRF = 1 mV; L = R; ∆f = 75 kHz; −1
fmod = 1 kHz;
de-emphasis = 75 µs
αcs(stereo)
stereo channel separation
VRF = 1 mV; R = L = 0 or R = 0 24
and L = 1 including 9 % pilot;
∆f = 75 kHz; fmod = 1 kHz;
data byte 3 bit 3 = 0;
data byte 4 bit 1 = 1
TYP. MAX.
75
90
60
−
0.5 1.5
−
−
−
500
−
30
5
10
20
30
75
90
−
50
−
−
−
−
−
+1
30
−
UNIT
mV
dB
%
dB
Ω
µA
µV
dB
mV
Ω
µA
dB
dB
dB
2004 Sep 13
20
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