參數(shù)資料
型號: TDA9847T-T
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO24
文件頁數(shù): 22/28頁
文件大?。?/td> 146K
代理商: TDA9847T-T
1995
May
23
3
Philips
Semiconductors
Preliminary
specication
TV
and
VTR
stereo/dual
sound
processor
with
digital
identication
TDA9847
BLOCK
DIAGRAMS
Fig.1 Block diagram of the bipolar TV/VTR-stereo decoder.
Input and output levels are nominal values related to the SCART norm (AM: m = 0.54, FM:
f= ±27 kHz).
6 dB
0 dB
3 dB
6 dB (AM)
6 dB
RMS
250 mV
Vref
RMS
R/B
250 mV RMS
L/A/mono
AM
50 k
50 k
15 k
2.2 k
35 k
2.2 k
50 k
10 k
10 k
5 k
5 k
30 k
25 k
25 k
1 k
A/mono
500 mV RMS
CONTROL
LOGIC
POWER-ON
RESET
SUPPLY
DIGITAL
INTEGRATOR
DIGITAL
INTEGRATOR
DIGITAL PLL
AND
DEMODULATOR
DIGITAL PLL
AND
DEMODULATOR
DIGITAL
PLL
OSCILLATOR
2.2
F
10
F
2.2
F
2.2
F
100
F/
16 V
2.2
F
L + R
2
, A
250 mV RMS
(AM: 500 mV RMS)
Vi2
Vi1
RFP
R, B
250 mV RMS
47 pF
CFP
3.3 nF
10 nF
tan
δ ≤ 0.002
CDCL
Qo= 70
CAGC
CLP
Vref
VP
Cref
10 MHz
(117 Hz)
(274 Hz)
stereo
bit
dual bit
stereo transmission
dual transmission
Vo4
Vi4 Vi3
Vo3
Vo2
Vo1
CD1
CD2
main
0 dB
L
10 nF
±5%
10 nF
±5%
250 mV
RMS
250 mV RMS
SCART
100 nF
17
21
12
11
14
13
16
15
19
18
1
2
24
20
22
23
8
3
C1
C2
C3
C4
5
4
6
7
10
9
TDA9847
mute
MED803
1/2 VP
SCART
2.5 mH
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