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TDA3845 Datasheet(PDF) 5 Page - NXP Semiconductors

Part # TDA3845
Description  Quasi split-sound circuit and AM demodulator
Download  18 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA3845 Datasheet(HTML) 5 Page - NXP Semiconductors

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January 1993
5
Philips Semiconductors
Objective specification
Quasi split-sound circuit and AM
demodulator
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
4.5
5.0
8.8
V
VP2
pin 11 (not for TDA3845T)
10.8
12.0
13.2
V
Itot
total supply current
40
48
mA
IF amplifier
R1-16
input resistance
2
k
C1-16
input capacitance
2.5
pF
V1-16(RMS)
minimum IF input voltage
(RMS value)
note 1
70
100
µV
V1-16(RMS)
maximum IF input voltage
(RMS value)
note 2
70
100
mV
∆G
gain control range
60
63
dB
Gv3-16
gain control voltage range
1.5
3.0
V
BIF
IF bandwidth
−3 dB
50
70
MHz
V1-16
DC potential
1.7
V
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)
270
mV
R8-9
operating resistance
4
k
V8-9
DC potential
3.9
V
Intercarrier mixer and output stage
V12(RMS)
output signal (RMS value)
at 5.5 MHz
70
100
mV
at 5.74 MHz
32
45
mV
B12
intercarrier bandwidth
at
−1 dB
8
MHz
at
−3 dB
9
MHz
residual video AM on intercarrier
signal
note 6
310
%
R12
output resistance
30
−Ω
V12
DC potential
1.8
V
I12(peak)
permissible AC output current
(peak value)
note 7
−−±0.7
mA
I12
permissible DC output current
−−−2mA


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