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參數(shù)資料
| 型號(hào)： | TDA2048 |
| 英文描述： | Multistandard quasi parallel-sound processor for Mono-TV-Sets |
| 中文描述： | 多標(biāo)準(zhǔn)準(zhǔn)并行處理器的單聲道電視，集 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 117K |
| 代理商： | TDA2048 |
TELEFUNKEN Semiconductors
TDA4481-D
Rev. A1: 23.02.1995
4 (10)
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
FM-operation
Min. sound carrier input
voltage
Picture carrier input volt-
age
Audio output voltage
(intercarrier voltage
–
3 dB)
Pin 18, 19
Pin 1
–
2
v
v
50
20
V
10
30
mV
f
PC
= 38.9 MHz, Pin 7, 9
v
1
–
2
= 20 mV,
f
SC
=33.4 MHz,
v
18
–
19
= 10 mV,
FM-deviation = 27 kHz,
f
mod
= 1 kHz, Q
B
= 22
f
mod
= 1 kHz,
Q
B
= 22
FM-deviation = 30 kHz
FM-deviation 30 kHz,
f
mod
= 1 kHz
Black burst
Grid test signal
v
500
mV
Harmonic distortion
Pin 7, 9
d
0.5
%
Signal to noise ratio
Standard B/G
according to CCIR 468
specification
AF amplifier
–
SCART-operation
Volume control range
V
8
for V
AFmin
at Pin
7
V
8
for V
AFmax
at Pin 7
SCART control voltage
Pin 7, 9
(
S+N)
N
62
50
dB
1
)
Pin 7
Pin 8
Pin 8
Pin 3
80
dB
V
V
V
8
V
8
0
0.5
4.5
recording
playback
V
3
V
3
R
S
v
G
0
4
2
V
SCART input resistance
AF input voltage
SCART-amplification
Attenuation
Pin 5
Pin 5
55
k
THD 3 %
2
V
dB
dB
–
1
60
0
+1
v
5
= 500 mV,
V
3
= 0 V
Pin 7, 9
7,9
75
Muting on (AF off)
Switching current
Muting off
Converter operation
DC at oscillator pin
Oscillator frequency range
Oscillator amplitude
Operation quality factor of
external oscillator stage
1)
Standard B/G IF-modulated-FBAS-signal
Pin 17
Pin 17
V
17
I
17
V
17
0
1
V
A
V
600
voltage to diode Pin 17
4
V
S
Pin 10
V
6
3.5 V
V
10
f
v
Q
B
2.7
V
9
13
MHz
2
)
mV
2
)
400
70
2)
See application circuit
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