- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382704 > U4240B AM - RECEIVER PDF資料下載
參數(shù)資料
| 型號： | U4240B |
| 英文描述： | AM - RECEIVER |
| 中文描述： | 上午-接收機 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 112K |
| 代理商： | U4240B |
TELEFUNKEN Semiconductors
U4240B
Rev. A1: 12.07.1995
5 (8)
Operating Conditions
V
S
= 8.5 V, f
iRF
= 1 MHz, f
mod
= 0.4 kHz, m = 30%, T
amb
= 25
°
C, reference point Pin 18 (fig. 2) unless otherwise specified
Parameters
Test Conditions / Pins
(S+N)/N = 6 dB = 26 dB
= 46 dB
Symbol
Min.
Typ.
1.5
15
150
30
Max.
Unit
RF input voltage
V
iRF
V
RF input for AGC operation
Control range with ref. to
V
iRF
= 500 mV
Maximum RF input voltage
V
iRF
V
V
oAF
= 6 dB
V
iRF
87
0.5
0.7
0.9
310
75
5.5
0.7
0.9
dB
d = 3%, m = 80%
d = 3%, m = 30%
d = 10%, m = 30%
V
i
= 1 mV
V
i
= 4 V, m = 0.8
V
oAF
= 60 mV
m = 80%, V
i
= 1 mV
m = 30%, V
i
= 500 mV
V
iRF
V
Audio output voltage
Pin 6
V
oAF
mV
RF input voltage
Total distortion of audio
output voltage
Signal plus noise to noise
ratio of audio output voltage
IF bandwidth (–3 dB)
IF selectivity
V
iRF
d
2
9
V
%
%
V
i
= 100 mV
(S+N)/N
B
IF
S
IF
56
4.6
30
60
dB
kHz
dB
f =
f =
9 kHz
36 kHz
Test Circuit
14
22
L1
33 pF
Band
switch diodes
2...22 pF
RL12
2.2 k
10 nF
13
12
0.1 F
11
RL11
2.7 k
1 mA
fosc
voIF
10
507 pF
12...440 pF
22
VS1
S2
V
50
viRF
16
15
0.1 F
17
18
22 nF
1
3.9 nF
L2
3
L
2.2 k
56 pF
IF Filter
SFZ
460 A
S2
V
AM
2
3
4
5
6
10 nF
3.3 nF
voAF
2.2 F
3.3 nF
voAF
7
8
9
C7
22 F
C8
0.1 F
U4240B
93 7617 e
0.22 F
47 F
+
R
G
12 k
Figure 2.
相關PDF資料 |
PDF描述 |
|---|---|
| U4255BM-AFN | AM/FM Receiver Circuit |
| U4255BM-AFNG3 | AM/FM Receiver Circuit |
| U4255BM-M | Low power single voltage comparator |
| U4260B | High temperature low power quad voltage comparators |
| U426B-FP | Laser Diode/LED Driver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| U4240B-A | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:AM - RECEIVER |
| U4240B-AFS | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:AM - RECEIVER |
| U425 | 制造商:SILCONIX 功能描述:JFET Transistor, N-Channel, Dual, TO-99 |
| U425_PDIP | 制造商:MICROSS 制造商全稱:MICROSS 功能描述:a high input impedance Monolithic Dual N-Channel JFET |
| U425_SOIC | 制造商:MICROSS 制造商全稱:MICROSS 功能描述:a high input impedance Monolithic Dual N-Channel JFET |
發(fā)布緊急采購，3分鐘左右您將得到回復。