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參數(shù)資料
| 型號(hào)： | TDA9840T-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 文件頁數(shù)： | 11/15頁 |
| 文件大?。?/td> | 160K |
| 代理商： | TDA9840T-T |
1998
Jul
03
5
Philips
Semiconductors
Product
specication
TV
and
VTR
stereo/dual
sound
processor
with
digital
identication
and
I
2C-bus
control
TDA9840
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Fig.2 Block diagram of the bipolar TV/VTR-stereo decoder with fixed coil (alignment-free).
o
k,
full
pagewidth
mute
LEVEL AND
STEREO
ADJUSTMENT
DIGITAL
PLL
OSCILLATOR
V
i 1
DIGITAL PLL
AND
DEMODULATOR
DIGITAL PLL
AND
DEMODULATOR
DIGITAL
INTEGRATOR
DIGITAL
INTEGRATOR
GENERATION
OF
REFERENCE
VOLTAGES
I C-BUS
CONTROL
2
CONTROL
LOGIC
1
20
SCL
SDA
11
12
13
14
MAIN
SCART
500 mV RMS
5 k
5 k
15
17
9
10
10 k
10 k
40 k
40 k
7
8
250 mV RMS
(from 1st SC)
2.2
F
2.2
F
27 k
180 pF
1.8 nF
±2%
4.7 mH
±5%
100 nF
10
F
10 nF
5
4
2
3
25 k
25 k
V
ref
19
6
18
16
100
F /
16 V
10 MHz
DUAL bit
STEREO
bit
L
R/B
250 mV RMS
L/A/MONO
250 mV RMS
2.2
F
2.2
F
500 mV RMS
250 mV RMS
(from 2nd SC)
C
AGC
C
LP
C
DCL
V
i 2
V
o 1
V
i 3
V
i 4
V
o 2
V
o 3
Vo 4
0 to 4.5 dB
stereo
level
V
P
C
ref
10 k
2 dB
0 to 4.5 dB
10 k
0 to
0.4 dB
A/MONO
6 dB
25 k
25 k
25 k
25 k
POWER-ON
RESET
L+R
2
, A
R, B
10 nF
C
D1
±5%
10 nF
C
D2
±5%
Q
0 = 25
tan
δ
≤ 0.01
1/2 V
GND
XTAL
P
V
i pil
MBE458
Input and output levels are nominal values.
They are related to the SCART norm.
(AM: m = 0.54, FM:
f= ±27 kHz).
The components of the external LC band-pass filter have the
following order-No.:
Philips Germany only No: 4312 020 17525 or Fastron Sdn.
Bha., Malaysia type SMCC 472 J for L = 4.7 mHz (
±5%)
Philips Components No: 2222 429 71802, C = 1.8 nF (
±2%).
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