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TDA3857 데이터시트(PDF) 8 Page - NXP Semiconductors

부품명 TDA3857
상세설명  Quasi-split sound processor with two FM demodulators
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA3857 데이터시트(HTML) 8 Page - NXP Semiconductors

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June 1994
8
Philips Semiconductors
Product specification
Quasi-split sound processor with two FM demodulators
TDA3857
I6, 7 (M)
allowed AC current of emitter output
(peak value)
note 3
−−
±1.5
mA
I6, 7
maximum allowed DC output current
−−
−2mA
THD
total harmonic distortion
0.5
1.0
%
Vo (RMS)
AF output signal (RMS value)
THD = 1.5%
1.25
−−
V
α
AM
AM suppression
1 kHz; m = 0.3
48
54
dB
S/N(W)
weighted signal-to-noise ratio
CCIR468-3
64
68
dB
B
AF bandwidth (
−3 dB)
lower limit
−−
20
Hz
upper limit
100
−−
kHz
α
CR
crosstalk attenuation (pins 6-7)
60
70
dB
V3
adjustment voltage for AF2
note 4
minimum output signal
0
V
maximum output signal
5
V
∆G
AF2min
gain for minimum Vout
V3 =0V
−1.5
−2.5
dB
∆G
AF2max
gain for maximum Vout
V3 = 5 V
1.0
1.5
dB
V14, 16
DC voltage (pins 14 and 16)
1.8
V
Tracking Automatic Frequency Control (AFC) of the vision carrier reference circuit
Vo 12
tracking output voltage (pin 12)
note 5
VP − 3.3 −
VP − 1V
FTR
tracking reducing factor for
black picture
9
white test picture
4
50% grey picture
6
S
AFC steepness (open loop) for
black picture
−−8
mV/kHz
white test picture
−−3
mV/kHz
50% grey picture
−−5.5
mV/kHz
AF signal switches
input signals: FM intercarrier into pin 13
see part FM demodulator
no signal in pin 17 (AF2)
the output signals are related to the signals described in the demodulator part.
Vo/Vomute
AF2 mute attenuation (pin 6)
70
−−
dB
dV6
DC jump at the AF2 output
switching to Mute
525
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT


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