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參數(shù)資料
| 型號： | TDA9851T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | I2C-bus controlled economic BTSC stereo decoder |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | 7.5 MM, PLASTIC, SO-24 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 145K |
| 代理商： | TDA9851T |
1997 Nov 12
7
Philips Semiconductors
Product specification
I
2
C-bus controlled economic BTSC stereo
decoder
TDA9851
CHARACTERISTICS
All voltages are measured relative to GND; V
CC
= 9 V; R
s
= 600
; AC-coupled; R
L
= 10 k
; C
L
= 2.5 nF; f
mod
= 1 kHz
mono signal; composite input voltage 250 mV (RMS) for 100% modulation L + R (25 kHz deviation); T
amb
= 25
°
C;
see Fig.1; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
CC
I
CC
supply voltage
supply current
8
9
30
9.5
40
V
mA
Input stage
V
i(max)(rms)
maximum input voltage
(RMS value)
input impedance
2
V
Z
i
20
25
30
k
Stereo decoder
HR
V
pil(rms)
headroom for L + R, L and R
nominal stereo pilot voltage
(RMS value)
pilot threshold voltage
stereo on (RMS value)
pilot threshold voltage
stereo off (RMS value)
hysteresis
output voltage (RMS value)
f
mod
= 300 Hz; THD < 15%
9
50
dB
mV
V
th(on)(rms)
35
mV
V
th(off)(rms)
15
mV
hys
V
o(rms)
2.5
500
dB
mV
100% modulation L + R;
f
mod
= 300 Hz
14% modulation; f
L
= 300 Hz;
f
R
= 3 kHz
100% modulation L or R;
f
mod
= 1 kHz
mono mode; referenced to
500 mV output signal
CCIR 468-2 weighted;
quasi peak
DIN noise weighting filter
(RMS value)
α
csL,R
stereo channel separation
L and R
total harmonic distortion
L and R
signal-to-noise ratio
20
dB
THD
L,R
0.2
1.0
%
S/N
50
60
dB
73
dBA
Stereo decoder, oscillator (VCXO);
note 1
f
o
nominal VCXO output
frequency (32f
H
)
spread of free-running
frequency
capture range frequency
with nominal ceramic
resonator
with nominal ceramic
resonator
nominal pilot
503.5
kHz
f
fr
500.0
507.0
kHz
f
cr
±
190
±
265
Hz
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