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PDF TDA3845T Data sheet ( Hoja de datos )
| Número de pieza | TDA3845T | |
| Descripción | Quasi split-sound circuit and AM demodulator | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA3845; TDA3845T
Quasi split-sound circuit and AM
demodulator
Objective specification
File under Integrated Circuits, IC02
January 1993
1 page  
Philips Semiconductors
Quasi split-sound circuit and AM
demodulator
Objective specification
TDA3845; TDA3845T
CHARACTERISTICS
VP1 = 5 V (note 11); Tamb = 25 °C; all measurements are referenced to ground (pin 13); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supply
supply voltage
VP1 pin 14
VP2 pin 11 (not for TDA3845T)
Itot total supply current
IF amplifier
R1-16
C1-16
V1-16(RMS)
input resistance
input capacitance
minimum IF input voltage
(RMS value)
note 1
V1-16(RMS) maximum IF input voltage
(RMS value)
note 2
∆G gain control range
Gv3-16
BIF
V1-16
gain control voltage range
IF bandwidth
DC potential
−3 dB
Intercarrier mode (FM mode; standard B/G) notes 3, 4 and 5
Reference amplifier
V8-9(p-p)
picture carrier amplitude
(peak-to-peak value)
R8-9 operating resistance
V8-9 DC potential
Intercarrier mixer and output stage
V12(RMS)
output signal (RMS value)
at 5.5 MHz
at 5.74 MHz
B12 intercarrier bandwidth
at −1 dB
at −3 dB
residual video AM on intercarrier
signal
note 6
R12
V12
I12(peak)
output resistance
DC potential
permissible AC output current
(peak value)
note 7
I12 permissible DC output current
4.5 5.0 8.8 V
10.8 12.0 13.2 V
− 40 48 mA
− 2 − kΩ
− 2.5 − pF
− 70 100 µV
70 100 −
mV
60 63 −
dB
1.5 −
3.0 V
50 70 −
MHz
− 1.7 − V
− 270 − mV
− 4 − kΩ
− 3.9 − V
70 100 −
32 45 −
mV
mV
− 8 − MHz
− 9 − MHz
− 3 10 %
− 30 − Ω
− 1.8 − V
− − ±0.7 mA
− − −2 mA
January 1993
5
5 Page 
Philips Semiconductors
Quasi split-sound circuit and AM
demodulator
APPLICATION INFORMATION
Objective specification
TDA3845; TDA3845T
(1) See note 5 to the characteristics.
Fig.5 Application diagram for the +12 V supply; not for TDA3845T.
(1) See note 5 to the characteristics.
Fig.6 Application diagram for the +5 V supply.
January 1993
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TDA3845T.PDF ] | |
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