OM5604 Просмотр технического описания (PDF) - Philips Electronics
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OM5604 Datasheet PDF : 8 Pages
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Philips Semiconductors
Multimedia radio tuner
Preliminary specification
OM5604; OM5606
CHARACTERISTICS
Direct coaxial feed to 75 Ω RF-connector; signal generator impedance = 75 Ω; RF levels are EMF/2; ∆f = 75 kHz;
fi = 98 MHz; fmod = 1 kHz; left and right audio output; RL = 600 Ω; audio filter = 22 Hz to 15 kHz; temperature
range = 15 to 35 °C.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
FM mono
Φlim
3 dB limiting sensitivity
ΦRF
RF sensitivity
S/N
signal-to-noise ratio
fL
lower audio frequency
bandwidth limit
V11, 12 = −3 dB;
V11, 12 = 0 dB at VFMi > 100 µV
(S + N)/N = 26 dB
VFMi = 1 mV
measured lower limit (−3 dB);
fref = 1 kHz; measured with
pre-emphasis
−
3.5
5
µV
−
2.2
4
µV
−
71
−
dB
−
40
70
Hz
fH
upper audio frequency
measured upper limit (−3 dB);
12.5 14
−
kHz
bandwidth limit
fref = 1 kHz; measured with
pre-emphasis
αAM
AM suppression
AM modulation m = 30%; fAF = 1 kHz 40
58
−
dB
THD
total harmonic distortion
−
1.5
3
%
VFMi
search sensitivity
search stop bits 17 and 16 = 0
−
12
36
µV
VFMi
large signal handling
DX mode; measured distortion = 10% −
1000 −
mV
attRF
RF attenuation in local mode
15
20
30
dB
VFM
audio output voltage level VFMi = 1 mV; ∆f = 75 kHz;
fAF = 400 Hz
700 850 −
mV
FM stereo
S/N
signal-to-noise ratio
αcs
channel separation
|∆IO|
channel imbalance
α19
carrier and harmonic
suppression
VFMi = 1 mV
fAF = 1 kHz; VFMi = 1 mV
fAF = 1 kHz; VFMi = 1 mV
60
63
−
dB
22
28
−
dB
−
0.5
3
dB
25
26
−
dB
α38
carrier and harmonic
suppression
25
27
−
dB
α
THD
stereo blend function
total harmonic distortion
VFMi = 100 µV
5
10
−
dB
−
−
3
%
1995 Oct 10
4
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