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參數(shù)資料
| 型號(hào)： | TDA9829T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 衰減器 |
| 英文描述： | Downconverter For DVB(下變頻器 （DVB應(yīng)用）) |
| 中文描述： | RF/MICROWAVE DOWN CONVERTER |
| 文件頁(yè)數(shù)： | 7/20頁(yè) |
| 文件大?。?/td> | 153K |
| 代理商： | TDA9829T |
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1998 Nov 09
7
Philips Semiconductors
Product specification
Downconverter for DVB
TDA9829T
α
mute
V
i(mute)
mute attenuation
mute switch input voltage
(pin 20)
note 2
DVB mute; note 3
DVB no mute
V
20
= 0 V
1.3
0
180
36
230
V
P
0.8
280
dB
V
V
μ
A
I
IL
LOW-level input current (pin 20)
DVB AGC detector (pins 8, 9 and 18)
t
resp
response to an increasing
amplitude step in the IF input
signal
response to a decreasing
amplitude step in the IF input
signal
charging current (pin 18)
discharging current (pin 18)
AGC adjust input voltage range
(pin 9)
AGC adjust input resistance
(pin 9)
AGC adjust steepness
external AGC voltage for DVB
(pin 8)
external AGC input resistance
(pin 8)
note 6
0.25
ms/dB
note 6
0.25
ms/dB
I
ch
I
dch
V
i(AGC)
1
200
200
2.5
4.5
μ
A
μ
A
V
R
i(AGC)
8
10
12
k
AGC
stps
V
AGC(ext)
2 V < V
9
< 3 V
see Fig.3
1
5
4.5
dB/V
V
R
i(AGC)(ext)
40
k
Tuner AGC (pin 12)
V
i(min)(rms)
IF input signal voltage for
minimum starting point of tuner
takeover (RMS value)
IF input signal voltage for
maximum starting point of tuner
takeover (RMS value)
permissible output voltage
saturation voltage
variation of takeover point by
temperature
input at pins 3 and 4;
R
TOP
= 22 k
;
I
TAGC
= 0.4 mA
input at pins 3 and 4;
R
TOP
= 0
;
I
TAGC
= 0.4 mA
2
5
mV
V
i(max)(rms)
50
100
mV
V
o
V
sat
V
-----------------------
from external source; note 2
I
TAGC
= 1.5 mA
I
TAGC
= 0.4 mA
0.03
13.2
0.2
0.07
V
V
dB/K
I
sink
sink current
see Fig.3
no tuner gain reduction;
V
TAGC
= 13.2 V
maximum tuner gain
reduction
5
μ
A
1.5
2
2.6
mA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
T
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