參數(shù)資料
型號(hào)： TDA8349A
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： Multistandard IF amplifier and demodulator
中文描述： AM, VIDEO DISCRIMINATOR, PDIP20
封裝： PLASTIC, DIP-20
文件頁(yè)數(shù)： 8/17頁(yè)
文件大小： 108K
代理商： TDA8349A
February 1991
8
Philips Semiconductors
Product specification
Multistandard IF amplifier and demodulator
TDA8349A
signal-to-noise ratio
note 11
V
i
= 10 mV
minimum gain
S/N
S/N
V
1(rms)
V
11(rms)
54
60
61
66
10
20
dB
dB
mV
residual carrier signal (RMS value)
residual 2nd harmonic of carrier signal (RMS
value)
3
10
mV
System switch
(note 12)
V
20
I
20
V
20
V
20
I
20
maximum voltage for mode B/G
input current
minimum voltage for mode L
maximum voltage for mode L
input current
1.4
7
300
3
V
μ
A
V
V
V
20
= 0 V
3 V
≤
pin
20
≤
7 V
150
250
μ
A
V
20
I
20
minimum voltage for MAC (positive)
input current
500
9.5
V
μ
A
V
20
= V
P
AGC control circuit
t
11
response to an amplitude increase of
52 dB of the IF input with the AGC
switched to mode B/G
response to an amplitude decrease of
52 dB of the IF input with the AGC
switched to mode B/G
allowed leakage current of the AGC
capacitor
top sync level AGC
white level AGC
positive MAC AGC
negative MAC AGC
note 13
2
ms
t
11
note 14
25
ms
I
5
I
5
I
5
I
5
10
200
50
200
μ
A
nA
nA
nA
Tuner AGC
(note 15)
input voltage for tuner AGC starting
point
IF input = 200
μ
V; negative slope
IF input = 100 mV; negative slope
IF input = 200
μ
V; positive slope
IF input = 100 mV; positive slope
maximum current swing of tuner AGC
output
output saturation voltage
leakage current
input signal variation complete tuner control
V
3
V
3
V
3
V
3
I
4
3.0
7.0
3.5
5.0
7.5
9.0
5.5
9.5
V
V
V
V
3
5
mA
V
4
I
4
V
i
I
4
= 2 mA
0.5
2.0
300
1
4.0
mV
μ
A
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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