TDA4483 查看數據表（PDF） - Temic Semiconductors
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TDA4483 Datasheet PDF : 8 Pages
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TDA4483
Absolute Maximum Ratings
Reference point Pin 13 (4), unless otherwise specified.
Parameters
Supply voltage
Pin 14
Supply current
Pin 14
Power dissipation
Junction temperature
Operating temperature, ambient
Storage temperature
Symbol
Value
Unit
VS
13.5
V
IS
50
mA
Ptot
680
mW
Tj
125
°C
Tamb
–25 to +70
°C
Tstg
–25 to +125
°C
Thermal Resistance
Junction-ambient
Parameters
Symbol
RthJA
Value
90
Unit
K/W
Electrical Characteristics
Tamb = 25°C, VS = 12 V, reference point: Pin 13 (4), unless otherwise specified
Parameters
Test Conditions / Pins Symbol Min. Typ. Max. Unit
Supply voltage range
Supply current
Pin 14
VS
10
13.5
V
FM-mode
Pin 14
IS
AM-mode
37
mA
32
DC output voltage
Pin 8
VO
3.6
V
Pin 12
3.2
Standard switch
Pin 10
Control voltage
AM-mode
0
1.5
FM-mode
VCTRL
2.2
VS
V
Internal voltage FM-mode
Pin 10 open
2.3
automatically selected
Control current
t VCTRL 5 V Pin 10
ICTRL
200
mA
FM-mode
Test conditions: Picture carrier fPC = 38.9 MHz, sound carrier fSC1 = 33.4 MHz, fSC2 = 33.1587 MHz,
picture carrier to sound carriers ratio = 13/20 dB, picture carrier unmodulated (equivalent to sync peak pulse)
Sound carrier frequency range
fSC
30
40
MHz
Picture carrier input voltage
Pin 5, 6
vPC
Sound carrier minimal
5.5 MHz intercarrier
vSC
10
20
50
30
mV
mV
input voltage
signal –3 dB Pin 1, 2
Sound carrier gain control
range
AGC
60
65
dB
Intercarrier output voltage
Output resistance
Signal to noise ratio
Pin 8
vOIC
Pin 8
RO
350
15
mV
W
Test conditions: Sound carrier VSC = 10 mV, picture carrier vPC = 20 mV, limited carrier from TDA4453 or com-
parable vision IF circuit, reference signal: frequency deviation ∆f = ±30 kHz, sound modulation fmod = 1 kHz.
Weighted (S + N)/N ratio of the demodulated intercarrier signal in accordance with CCIR468-4, measured with
FM-demodulator U2829B
Picture carrier unmodulated Channel 1/2
(S + N)/N
68/67
dB
Black picture
Channel 1/2
(S + N)/N
62/60
dB
Grid
Channel 1/2
(S + N)/N
50/48
dB
TELEFUNKEN Semiconductors
3 (8)
Rev. A1, 15-May-96
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