TDA8349 查看數據表（PDF） - Philips Electronics
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TDA8349 Datasheet PDF : 17 Pages
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Philips Semiconductors
Multistandard IF amplifier and demodulator
Product specification
TDA8349A
SYMBOL
PARAMETER
S/N
S/N
V1(rms)
V11(rms)
signal-to-noise ratio
residual carrier signal (RMS value)
residual 2nd harmonic of carrier signal (RMS
value)
System switch (note 12)
V20
maximum voltage for mode B/G
I20
input current
V20
minimum voltage for mode L
V20
maximum voltage for mode L
I20
input current
V20
minimum voltage for MAC (positive)
I20
input current
AGC control circuit
t11
response to an amplitude increase of
52 dB of the IF input with the AGC
switched to mode B/G
t11
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
I5
top sync level AGC
I5
white level AGC
I5
positive MAC AGC
I5
negative MAC AGC
Tuner AGC (note 15)
input voltage for tuner AGC starting
point
V3
IF input = 200 µV; negative slope
V3
IF input = 100 mV; negative slope
V3
IF input = 200 µV; positive slope
V3
IF input = 100 mV; positive slope
I4
maximum current swing of tuner AGC
output
V4
output saturation voltage
I4
leakage current
∆Vi
input signal variation complete tuner control
CONDITIONS
note 11
Vi = 10 mV
minimum gain
MIN.
54
60
−
−
TYP.
61
66
10
3
MAX. UNIT
−
dB
−
dB
20
mV
10
mV
V20 = 0 V
3 V ≤ pin
20 ≤ 7 V
V20 = VP
1.4
−
−
V
−
−300 −
µA
−
−
3
V
7
−
−
V
−150 −
250 µA
−
−
9.5 V
−
500
−
µA
note 13
note 14
−
2
−
ms
−
25
−
ms
−
10
−
µA
−
200
−
nA
−
50
−
nA
−
200
−
nA
I4 = 2 mA
3.0
3.5
−
V
−
5.0
5.5 V
7.0
7.5
−
V
−
9.0
9.5 V
3
5
−
mA
−
−
300 mV
−
−
1
µA
0.5
2.0
4.0 dB
February 1991
8
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