TDA3856 データシートの表示（PDF） - Philips Electronics
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TDA3856 Datasheet PDF : 17 Pages
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Philips Semiconductors
Quasi-split sound processor for all standards
Product specification
TDA3856
SYMBOL
PARAMETER
VI
Vi IF (RMS)
V3
∆Gv
B
DC potential, voltage (pins 1, 2, 23, 24)
maximum input signal (RMS value)
input signal sensitivity B/G standard
(RMS value, pins 32-24)
input signal sensitivity L standard
(RMS value, pins 1-2)
voltage for gain control (pin 3)
IF gain control
IF bandwidth
Resonance amplifier (pins 12-13)
Vo (p-p)
R12-13
L
C
QL
V12, 13
vision carrier amplitude
(peak-to-peak value)
operating resistance
inductance
capacitance
Q-factor of resonant circuit
DC voltage (pins 12 and 13)
Intercarrier mixer output (pin 17)
Vo (RMS)
B
output signal for 5.5 MHz (RMS value)
output signal for 5.74 MHz (RMS value)
IF bandwidth
VVID/V17
VVC(RMS)
residual video AM on intercarrier
residual vision carrier (RMS value)
R17
output resistance (emitter follower)
Io
allowable AC output current (pin 17)
I17
allowable DC output current
V17
DC voltage
Limiting amplifiers (pins 15 and 19)
Vi (RMS)
minimum input signal (RMS value)
maximum input signal (RMS value)
R15, 19
V15, 19
Vi (RMS)
input resistance
DC voltage
level detector threshold for no muting
(RMS value, pin 19)
∆Vi
hysteresis of level detector
CONDITIONS
Vo = +1 dB
−3 dB intercarrier signal
reduction at pin 17
−3 dB intercarrier signal
reduction at pin 9
−3 dB
fo = 38.9 MHz
Figs 3 and 5
Qo = 90
−1 dB
−3 dB
note 2
1st/2nd harmonic
(38.9/77.8 MHz)
1 mA emitter current
LC-circuit at pin 12, 13
adjusted to minimum
video content at pin 17
−3 dB AF signal
only 5.74 MHz channel
MIN. TYP. MAX. UNIT
−
1.75 −
V
70 100 −
mV
−
70 100 µV
−
70 100 µV
1.7 −
2.6
60 63 −
50 70 −
V
dB
MHz
−
270 −
mV
−
4
−
kΩ
−
0.247 −
µH
−
68 −
pF
−
40 −
−
VP− 1 −
V
71 95 125 mV
32 43 56
mV
6
8.5 −
MHz
7
10 −
MHz
−
3
10
%
−
0.5 1
mV
−
30 −
Ω
−
−
±0.7 mA
−
−
−2
mA
1.5 1.75 2.0 V
−
300 450 µV
200 −
−
mV
450 560 700 Ω
−
0
−
V
0.8 1.2 1.7 mV
4
7
12
dB
June 1994
7
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