TDA3866 Просмотр технического описания (PDF) - Philips Electronics
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TDA3866 Datasheet PDF : 16 Pages
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Philips Semiconductors
Quasi-split sound processor for all standards
Preliminary specification
TDA3866
CHARACTERISTICS
VP = 5 V and Tamb = 25 °C, measurements taken in Fig.3 with fVC = 38.9 MHz, fSC1 = 33.4 MHz and fSC2 = 33.158 MHz.
Vision carrier (VC) modulated with different video signals, modulation depth 100 % (proportional to 10 % residual
carrier).
Vision carrier amplitude (RMS value) Vi VC = 10 mV; vision to sound carrier ratios are VC/SC1 = 13 dB and
VC/SC2 = 20 dB. Sound carriers (SC1, SC2) modulated with f = 1 kHz and deviation ∆f = 50 kHz unless otherwise
specified.
SYMBOL
PARAMETER
VP
supply voltage range (pin 21)
IP
supply current (pin 21)
IF source control (pin 5)
V5
input voltage in order to obtain standards
B/G (FM) with automatic muting
B/G (FM) without muting
L (AM sound)
I5
input current
IF input not activated (pins 1-2 or 23-24)
RI
VDC
α1,2-23,24
input resistance
DC input voltage (pins 1, 2, 23 and 24)
crosstalk attenuation of IF input switch
IF amplifier (pins 1-2 or 23-24)
RI
input resistance
CI
input capacitance
VI
DC potential, voltage (pins 1, 2, 23, 24)
Vi IF
maximum input signal (RMS value)
input signal sensitivity B/G standard
(RMS value, pins 23-24)
input signal sensitivity L standard
(RMS value, pins 1-2)
∆Gv
IF gain control range
B
IF bandwidth
V3
voltage range for gain control (pin 3)
CONDITIONS
pin 5 connected
pin 5 open-circuit
pin 5 connected
22 kΩ to GND
(alternative measure)
pin 5 connected
V5 = VP
V5 = 0
internally set LOW
note 1
Vo = +1 dB
−3 dB intercarrier signal
reduction on pin 17
−3 dB intercarrier signal
reduction on pin 9
−3 dB
Gmin − Gmax
MIN.
4.5
48
2.8
−
1.3
−
0
−
−
−
−
50
1.75
1.0
−
70
−
−
60
50
1.7
TYP.
5
60
MAX. UNIT
8.8 V
72
mA
−
VP
V
2.8 −
V
−
2.3 V
1.8 −
V
−
0.8 V
−
100 µA
−
−300 µA
−
100 Ω
−
0.1 V
56
−
dB
2.2 2.65 kΩ
1.5 2.2 pF
1.75 −
V
100 −
mV
70
100 µV
70
100 µV
63
−
dB
70
−
MHz
−
2.6 V
January 1992
7
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