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參數資料
| 型號： | 935028240112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PDIP32 |
| 封裝： | 0.400 INCH, PLASTIC, SDIP-32 |
| 文件頁數： | 17/19頁 |
| 文件大小： | 187K |
| 代理商： | 935028240112 |
June 1994
7
Philips Semiconductors
Product specication
Quasi-split sound processor for all standards
TDA3858
CHARACTERISTICS
VP = 5 V (pin 27) 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
specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP1
supply voltage (pin 27)
pin 28 not
connected
4.5
5
8.8
V
VP2
supply voltage (pin 28)
pin 27 not
connected
10.8
12
13.2
V
IP1
supply current (pin 27)
VP1 =5 V
48
60
72
mA
IF source control (pin 6)
V6
input voltage in order to obtain
standards
B/G (FM) with automatic muting
pin 6 connected
2.8
VP1
V
pin 6 open-circuit
2.8
V
B/G (FM) without muting
pin 6 connected or
alternative
measure: 22 k
to
GND
1.3
2.3
V
L(AM sound)
pin 6 connected
0
0.8
V
I6
input current
V6 = VP1
100
A
V6 =0 V
300
A
V6(12 V)
maximum input voltage (pin 6)
supply at pin 28
5.5
V
IF input not activated (pins 1-2 or 31-32)
RI
input resistance
100
VI
DC input voltage (pins 1, 2 or 31, 32) LOW set internally
0.1
V
α
16-17
crosstalk attenuation of IF input
switch
note 1
50
56
dB
IF amplier (pins 1-2 or 31-32)
RI
input resistance
1.8
2.2
k
CI
input capacitance
2.0
2.6
pF
VI
DC potential, voltage (pins 1, 2, 31,
32)
1.75
V
Vi IF (RMS)
maximum input signal (RMS value)
Vo = +1 dB
70
100
mV
input signal sensitivity B/G standard
(RMS value, pins 31-32)
3 dB intercarrier
signal reduction at
pin 23
70
100
V
input signal sensitivity L standard
(RMS value, pin 1-2)
3 dB intercarrier
signal reduction at
pin 11
70
100
V
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