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參數(shù)資料
| 型號： | TDA9852 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | I2C-bus controlled BTSC stereo/SAP decoder and audio processor |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP42 |
| 文件頁數(shù)： | 11/40頁 |
| 文件大?。?/td> | 258K |
| 代理商： | TDA9852 |
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1997 Mar 11
11
Philips Semiconductors
Preliminary specification
I
2
C-bus controlled BTSC stereo/SAP
decoder and audio processor
TDA9852
Requirements for the composite input signal to ensure correct system performance
Notes
1.
Low-ohmic preferred, otherwise the signal loss and spreading at COMP, caused by Z
o
and the composite input
impedance (see Chapter “Characteristics”, Section “Input level adjustment control”) must be taken into account.
In order to prevent clipping at over-modulation
(maximum deviation in the BTSC system for 100% modulation is 73 kHz).
For example colour bar or flat field white; 100% video modulation.
2.
3.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
COMP
L+R(rms)
composite input level for 100%
modulation L + R; 25 kHz
deviation; f
i
= 300 Hz;
RMS value
COMP
composite input level
spreading under operating
conditions
Z
o
output impedance
f
lf
low frequency roll-off
f
hf
high frequency roll-off
THD
L,R
total harmonic distortion L + R
measured at COMP
162
250
363
mV
T
amb
=
20 to +70
°
C; aging;
power supply influence
0.5
+0.5
dB
note 1
25 kHz deviation L + R;
2 dB
25 kHz deviation L + R;
2 dB
f
i
= 1 kHz; 25 kHz deviation
f
i
= 1 kHz; 125 kHz deviation;
note 2
CCIR 468-2 weighted quasi
peak; L + R; 25 kHz deviation;
f
i
= 1 kHz; 75
μ
s de-emphasis
critical picture modulation;
note 3
with sync only
mono signal: 25 kHz deviation,
f
i
= 1 kHz; side band: SAP
carrier frequency
±
1 kHz
50 Hz to 100 kHz;
mainly n
×
f
H
; no de-emphasis;
L + R; 25 kHz deviation,
f = 1 kHz as reference
n = 1, 5
n = 4, 6
n = 2, 3
100
low-ohmic 5
k
Hz
kHz
%
%
5
0.5
1.5
S/N
signal-to-noise ratio
L + R/noise
44
dB
54
46
dB
dB
α
SB
side band suppression mono
into unmodulated SAP carrier;
SAP carrier/side band
spectral spurious attenuation
L + R/spurious
α
SP
35
40
26
dB
dB
dB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9852H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled BTSC stereo/SAP decoder and audio processor |
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| TDA9853HV1 | 制造商:PHILIPS 功能描述:New |
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