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參數(shù)資料
| 型號(hào)： | LM1865 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Advanced FM IF System |
| 中文描述： | 先進(jìn)的調(diào)頻中頻系統(tǒng) |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 309K |
| 代理商： | LM1865 |
Electrical Characteristics
Test Circuit, T
A
e
25
§
C, V
a
e
12V; S1 in position 2; S2 in position 1; and S3 in
position 2 unless indicated otherwise (Continued)
Parameter
Conditions
Min
Typ
Max
Units
DYNAMIC CHARACTERISTICS
f
MOD
e
400 Hz, f
o
e
10.7 MHz, Deviation
e
g
75 kHz (Continued)
Pin 13 Mute/Stop Threshold Voltage
V14
e
V9, S1 in Position 4
S2 in Position 3
V13 where V16
x
Low
220
mV
Amount of Muting (LM1965 Only)
S2 in Position 4, S1 in Position 1, V
IF
e
10 mV
66
dB
Amount of Muting with Pin 13 and
Pin 16 Grounded
S1 in Position 1
V14,
e
V9, V
IF
e
10 mV
0
dB
Narrow Band AGC Threshold
Increase IF Input until I
AGC
e
0.1 mA
Pin 20
e
30 mVrms
100
210
300
m
Vrms
Wide Band AGC Threshold
V
IF
e
100 mVrms
Increase Signal to Pin 20 until I
AGC
e
0.1 mA
5
12
22
mVrms
Pin 18, Low Output Voltage
(LM1865 and LM1965 only)
V
IN
Pin 20
e
100 mV, V
IF
e
100 mVrms
0.2
0.5
V
Pin 18, High Output Voltage (LM2065 only)
V
IN
Pin 20
e
100 mV, V
IF
e
100 mVrms, (See Note 6)
11.7
V
Pin 8, Meter Output Voltage
V
IF
e
10
m
V
V
IF
e
300
m
V
V
IF
e
3 mV
0.1
1.1
2.6
V
V
V
Note 1:
Above T
A
e
25
§
C derate based on T
J(max)
e
150
§
C and
i
JA
e
60
§
C/W.
Note 2:
All data sheet specifications are for V
a
e
12V may change slightly with supply.
Note 3:
When the IF is preceded by 22 dB gain in the buffer, excellent system sensitivity is achieved.
Note 4:
Measured with a notch at 60 Hz and 20 Hz to 100 kHz bandwidth.
Note 5:
FM modulate RF source with a 100 kHz audio signal and find what modulation level, expressed as kHz deviation, results in V16
x
12V.
Test Circuit
TL/H/7509–2
FIGURE 2
3
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PDF描述 |
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| LM1865M | Advanced FM IF System |
| LM1865N | Advanced FM IF System |
| LM1868 | Radio System |
| LM1868N | Radio System |
| LM1870 | STEREO DEMODULATOR WITH BLEND |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1865M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced FM IF System |
| LM1865N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced FM IF System |
| LM1865N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM Receiver Circuit |
| LM1865N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM Receiver Circuit |
| LM1866 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LOW VOLTAGE AM/FM RECEIVER |
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