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參數資料
| 型號： | 935028240112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PDIP32 |
| 封裝： | 0.400 INCH, PLASTIC, SDIP-32 |
| 文件頁數： | 2/19頁 |
| 文件大?。?/td> | 187K |
| 代理商： | 935028240112 |
June 1994
10
Philips Semiconductors
Product specication
Quasi-split sound processor for all standards
TDA3858
GAF2min
gain for minimum Vout
V7 =0 V
1.5
2.5
dB
G
AF2max
gain for maximum Vout
V7 = 5 V
1.0
1.5
dB
V22, 24
DC voltage (pins 22 and 24)
1.8
V
AM demodulator V6 = 0 V (AM mode)
input signal at pins 1-2: SC = 32.4 MHz; fmod = 1 kHz; m = 0.8; Vi AM (RMS) = 10 mV
Vo(RMS)
AF output signal at pin 11 (RMS
value)
530
600
675
mV
R11
output resistance (pin 11)
75
100
130
Io (M)
maximum AC output current (peak
value)
note 5
±1.5
mA
I11
maximum DC output current
2mA
V11
DC voltage
1.8
2.1
2.4
V
THD
total harmonic distortion
Fig.4
12
%
S/N(W)
weighted signal-to-noise ratio
CCIR468-3
50
56
dB
B
AF bandwidth (
3 dB)
lower limit
20
Hz
upper limit
100
kHz
V20
DC voltage (pin 20)
2
V
AF signal switches
input signals: AM carrier into pin 1, 2
see part AM demodulator
FM intercarrier into pin 21
see part FM demodulator
no signal in pin 25 (AF2)
the output signals are related to the signals described in the demodulator parts.
Vo/Vomute
AF2 mute attenuation (pin 10)
B/G mode; V6 =VP
70
dB
VoAM/VoFm
AF1 AM signal (pin 11) attenuation of
unwanted FM signal
L mode; V6 =0;
FM: modulated;
AM: unmodulated
70
dB
VoFM/VoAM
AF1 FM signal (pin 11) attenuation of
unwanted AM signal
B/G mode; V6 =VP;
FM: unmodulated;
AM: modulated
70
dB
dV10, 11
DC jump at the AF outputs
switching to FM or
AM sound or Mute
525
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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