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TDA9873HS Arkusz danych(PDF) 3 Page - NXP Semiconductors

Numer części TDA9873HS
Szczegółowy opis  Multistandard dual carrier stereo sound decoder
Download  40 Pages
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Producent  PHILIPS [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA9873HS Arkusz danych(HTML) 3 Page - NXP Semiconductors

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2000 Apr 04
3
Philips Semiconductors
Product specification
Multistandard dual carrier stereo sound decoder
TDA9873H
QUICK REFERENCE DATA
VCC =5V; Tamb =25 °C; B/G standard (fSC1 = 5.5 MHz, fSC2 = 5.742 MHz, SC1/SC2=7dB, ∆fAF = 27 kHz,
fmod = 1 kHz, L = R, stereo mode); input level for first sound carrier Vi(FM)(rms) =50mV; fref = 4.000 MHz; measured in
application circuits of Figs 7 and 8; unless otherwise specified.
Notes
1. Condition for B/G, I and D/K standard: VCC = 5 V and ∆f = 27 kHz (m = 54%). Condition for M standard: VCC =5V
and
∆f = 13.5 kHz; 6 dB gain added internally to compensate smaller deviation.
2. The maximum total system identification time ‘on’ for a channel change is equal to maximum value of tident(on) plus
tI2C(read-out). The maximum total system identification time ‘off’ for a channel change is equal to maximum value of
tident(off) plus tI2C(read-out). The fast mode is proposed mainly during search tuning, program or channel select. If the
channel is selected, the identification response should be switched to normal mode for improved reliability. However
due to the transition from fast to normal mode, the identification bits are not valid for one integrator period. Therefore
the transmitter mode detected during the fast mode has to be stored before changing to normal mode. The storage
has to be kept for two seconds (maximum value of tident(on) in the normal mode) from the moment of transition.
The identification can now operate in the normal mode until the next tuning action.
3. R modulated and L monitored.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VCC
supply voltage
4.5
5
6.6
V
ICC
supply current
40
60
75
mA
Vo(rms)
AF output level (RMS value)
54% modulation; note 1
400
500
600
mV
Vo(cl)(rms)
AF output clipping level
(RMS value)
THD < 1.5%
1400
−−
mV
fi(FM)
FM-PLL operating frequencies
(switchable)
first sound carrier
M standard
4.5
MHz
B/G standard
5.5
MHz
I standard
6.0
MHz
D/K standard
6.5
MHz
second sound carrier
M standard
4.72
MHz
B/G standard
5.74
MHz
D/K (1) standard
6.26
MHz
D/K (2) standard
6.74
MHz
D/K (3) standard
5.74
MHz
S/NW
weighted signal-to-noise ratio
(complete signal path)
CCIR 468-4 weighted; quasi
peak; dual mode;
B/G standard; note 1
52
56
dB
tident(on)
total identification time on for
identification mode change
normal mode; note 2
0.35
2s
fast mode; note 2
0.1
0.5
s
Vi(FM)(rms)
FM-PLL input voltage (RMS value)
sensitivity for pull-in
first sound carrier
−−
6mV
second sound carrier
−−
1mV
α
cs(AF)(stereo)
AF channel separation (stereo
mode; complete signal path)
B/G standard; note 3
without alignment
25
30
dB
I2C-bus alignment
40
45
dB
αct(AF)(dual)
AF crosstalk attenuation (dual
mode; complete signal path)
65
70
dB


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