- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359850 > 3845 (Allegro MicroSystems, Inc.) TRANS PREBIASED NPN 150MW SOT523 PDF資料下載
參數(shù)資料
| 型號： | 3845 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | TRANS PREBIASED NPN 150MW SOT523 |
| 中文描述： | 上午噪音落料 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 233K |
| 代理商： | 3845 |
This noise blanker integrated circuit contains all of the necessary
circuitry for adding an extremely efficient (patented) noise-blanking
technique to any type of AM tuner or receiver with RF input frequen-
cies (or a first IF) to 30 MHz. The A3845ELW and A3845SLW
feature dual audio channels and are intended for AM-stereo or indepen-
dent sideband applications.
A high input impedance, high-gain, broadband RF amplifier
permits these devices to be directly connected to the RF stage of a
tuner. Internal AGC circuitry ensures that the noise detection threshold
remains constant with changes in input signal level. The RF gate
response time is sufficiently fast to blank the noise pulse at the output
of the mixer before the IF filter. Short blanking times effectively
suppress most of the interfering noise. Residual audio noise is re-
moved by an audio sample-and-hold gate. The RF blanking time,
audio gate delay time, and audio gate blanking time can all be indepen-
dently adjusted to suit the particular application.
These AM noise blankers are packaged in plastic SOICs and are
rated for operation over the a standard temperature range of -20
°
C to
+85
°
C (suffix ‘SLW’) or an extended temperature range to -40
°
C
(suffix ‘ELW’).
AM NOISE BLANKER
D
2
ABSOLUTE MAXIMUM RATINGS
at T
A
= +25
°
C
Supply Voltage, V
CC
. . . . . . . . . . . . . .
12 V
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . . . . . .
1.78 W
Operating Temperature Range, T
A
Suffix ‘ELW’ . . . . . . . .
-40
°
C to +85
°
C
Suffix ‘SLW’ . . . . . . . .
-20
°
C to +85
°
C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . . .
-55
°
C to +125
°
C
FEATURES
I
RF Blanking to 30 MHz
I
Single-Channel or Stereo Audio Blanking
I
Adjustable RF and Audio Blanking Time
I
Adjustable Audio Blanking Delay
I
Sample-and-Hold MOS Audio Gates
I
Internal Voltage Regulation
I
Minimum External Components
APPLICATIONS
I
AM and AM-Stereo Automotive Radios
I
CB Transmitter/Receivers
I
Short-Wave Receivers
I
Mobile Communications Equipment
3845
Always order by complete part number:
Part Number
Function
A3845ELW
A3845SLW
Stereo Noise Blanker, Extended Temp. Range
Stereo Noise Blanker, Standard Temp. Range
GROUND
13
14
15
16
17
19
12
18
20
11
1
2
3
8
9
4
5
6
7
10
RF AGC
SUPPLY
CC
V
AUDIO DELAY
RF BIAS
AUDIO BLANK
TIME (R)
AUDIO BLANK
TIME (C)
RF BLANK
TIME
AUDIO OUT
1
NO
CONNECT
NO
CONNECT
NC
NC
Dwg. PS-003-1A
RF GATE
LOW
RF IN
RF BYPASS
AUDIO IN
1
AUDIO OUT
2
AUDIO IN
2
NO
CONNECT
NC
RF GATE
HIGH
DET
NOISE
DIFFERENTIATOR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 385AXF100M30x20 | LARGE CAN TYPE ALUMINUM ELECTROLYTIC CAPACITORS |
| 385AXF68M25x20 | LARGE CAN TYPE ALUMINUM ELECTROLYTIC CAPACITORS |
| 385AXF82M25x20 | LARGE CAN TYPE ALUMINUM ELECTROLYTIC CAPACITORS |
| 385AXF120M30x20 | LARGE CAN TYPE ALUMINUM ELECTROLYTIC CAPACITORS |
| 385AXF150M35x20 | LARGE CAN TYPE ALUMINUM ELECTROLYTIC CAPACITORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 38450 | 功能描述:TOOL SCREWDRVR BIT HOLDER 1/4" RoHS:否 類別:工具 >> 螺釘和螺母驅(qū)動器 - 手柄，座 系列:- 標準包裝:1 系列:TorqueVario™ 工具類型:轉(zhuǎn)矩手柄 - 可調(diào) 長度:5.39" - 5.59"（137mm - 142mm） 特點:20 ~ 70" -磅（2.3 ~ 7.9 Nm），絕緣達 1000V 重量:0.69 磅（312.98g） |
| 384506-000 | 制造商:TE Connectivity 功能描述:High Performance Cable 2Conductors 24AWG 3mm Tin Plated Copper Black 600VAC |
| 3845-1 | 制造商:Amphenol Corporation 功能描述: 制造商:TE Connectivity 功能描述: |
| 3-84533-0 | 功能描述:FFC & FPC連接器 POST PLATED R/A 30P 1.25mm RoHS:否 制造商:JAE Electronics 產(chǎn)品類型:Plugs 系列:HD 節(jié)距:0.5 mm 位置/觸點數(shù)量:40 安裝角: 安裝風格:Cable 外殼材料:Plastic 觸點材料:Copper Alloy 觸點電鍍:Gold 電壓額定值:100 V per contact 電流額定值:0.24 A to 1 A |
| 3-84533-0 | 制造商:TE Connectivity 功能描述:FFC/FPC CONNECTOR |
發(fā)布緊急采購，3分鐘左右您將得到回復。