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參數(shù)資料
| 型號： | TDA9845T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | TV and VTR stereo/dual sound processor with digital identification |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | PLASTIC, SO-20 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 177K |
| 代理商： | TDA9845T |
1995 Mar 20
9
Philips Semiconductors
Preliminary specification
TV and VTR stereo/dual sound processor
with digital identification
TDA9845
AF outputs (pins 11 and 12)
V
o(rms)
nominal output signal voltage
(RMS value)
clipping voltage level
(RMS value)
THD
≤
0.3%;
54% modulation
THD
≤
1.5%
V
P
= 5 V
V
P
= 8 V
0.5
V
V
o(rms)
1.4
2.4
150
10
1.6
2.65
250
350
1.5
V
V
nF
k
R
o
C
L
R
L
output resistance
load capacitor on output
load resistor on output
(AC-coupled)
frequency response
(bandwidth)
frequency response
total harmonic distortion
weighted signal-to-noise
ratio
crosstalk attenuation for
DUAL
STEREO
mute attenuation
change of DC level output
voltage between any two
modes of operation
power supply ripple rejection
DC output current
B
f
i
= 40 to 20000 Hz;
note 2
3 dB; note 2
note 1
“CCIR468-3”
(quasi-peak)
notes 1 and 3
Z
s
≤
1 k
Z
s
≤
1 k
Z
s
≤
1 k
; note 1
after switching
0.5
+0.5
dB
B
3 dB
THD
S/N(W)
300
66
350
0.2
75
400
0.3
kHz
%
dB
α
cr
70
40
76
75
45
80
±
10
dB
dB
dB
mV
α
mute
V
DC
PSRR
I
O(DC)
f
r
= 70 Hz; see Fig.6
50
65
±
20
dB
μ
A
10 MHz crystal oscillator (pin 19)
f
r
series resonant frequency of
crystal (fundamental mode)
working oscillator frequency
(running in parallel
resonance mode)
C
L
= 20 pF
9.995
10.008
10.021
MHz
f
ω
over operating
temperature range
including ageing and
influence of drive circuit
even at extremely low
drive level (
<
1 pW) over
operating temperature
range with C
0
= 6 pF
9.988
10.008
10.028
MHz
R
r
equivalent crystal series
resistance
60
200
R
n
crystal series resistance of
unwanted mode
crystal parallel capacitance
crystal motional capacitance
level of drive in operation
oscillator operating voltage
(peak-to-peak value)
2
×
R
r
C
0
C
1
P
XTAL
V
OSC(p-p)
with R
r
≤
2100
500
6
25
550
10
50
5
600
pF
fF
μ
W
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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