TDA3858 データシートの表示（PDF） - Philips Electronics
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TDA3858 Datasheet PDF : 17 Pages
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Philips Semiconductors
Quasi-split sound processor for all standards
Product specification
TDA3858
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Tracking Automatic Frequency Control (AFC) of the vision carrier reference circuit
V0 19
FTR
S
tracking output voltage (pin 19)
tracking reducing factor for
black picture
white test picture
50% grey picture
AFC steepness (open loop) for
black picture
white test picture
50% grey picture
note 3
VP1 − 3.3 −
−
9
−
4
−
6
−
−8
−
−3
−
−5.5
VP1 − 1 V
−
−
−
−
mV/kHz
−
mV/kHz
−
mV/kHz
FM1 and FM2 demodulators
Measurements with FM IF input signals of 5.5 MHz and 5.74 MHz with Vi IF (RMS) = 10 mV (fmod = 1 kHz, deviation
∆f = ±50 kHz) at pins 21 and 25 without ceramic filters, RS = 50 Ω.
De-emphasis 50 µs and V6 = VP1 (B/G standard).
QL-factor = 11 for resonant circuits at pins 8-9 and 12-13 (including IC).
VIC(RMS)
intercarrier signals
(RMS values, pins 8-9 and 12-13)
−
100
−
mV
V
DC voltage (pins 8, 9, 12 and 13)
−
1.8
−
V
Vo(RMS)
AF output signals
(RMS values, pins 10 and 11)
0.84
0.95 1.07
V
∆Vo
difference of AF signals between
note 4
channels (pins 10 and 11)
−
−
1
dB
R10, 11
output resistance
75
100
130
Ω
V10, 11
I10, 11 (M)
DC voltage
allowed AC current of emitter output
(peak value)
note 5
1.8
2.1
2.4
V
−
−
±1.5
mA
I10, 11
THD
maximum allowed DC output current
total harmonic distortion
−
−
−2
mA
−
0.5
1.0
%
Vo(RMS)
AF output signal (RMS value)
THD = 1.5%
1.25
−
−
V
αAM
AM suppression
1 kHz; m = 0.3
48
54
−
dB
S/N(W)
weighted signal-to-noise ratio
CCIR468-3
64
68
−
dB
B
AF bandwidth (−3 dB)
lower limit
−
−
20
Hz
upper limit
100
−
−
kHz
αCR
crosstalk attenuation (pins 10-11)
60
70
−
dB
V7
adjustment voltage for AF2
note 6
minimum output
−
signal
0
−
V
maximum output −
signal
5
−
V
June 1994
9
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