- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371782 > HCS201 (Microchip Technology Inc.) KEELOQ Code Hopping Encoder PDF資料下載
參數(shù)資料
| 型號： | HCS201 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | KEELOQ Code Hopping Encoder |
| 中文描述： | 而Keeloq跳碼編碼器 |
| 文件頁數(shù)： | 12/28頁 |
| 文件大?。?/td> | 383K |
| 代理商： | HCS201 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁當(dāng)前第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
HCS201
DS41098C-page 12
2001 Microchip Technology Inc.
5.6
Step Up Regulator
The integrated Step Up regulator can be used to
ensure the power supply voltage to the encoder and
the RF circuit (V
DD
), is constant independent of what
the battery voltage is (V
DDB
). Input on V
DD
pin is com-
pared to V
STEP
, the internal reference voltage. If V
DD
falls below this voltage the STEP output is pulsed at
f
STEP
. This output can be connected to an external cir-
cuit as illustrated in Figure 5-2, to provide a step up
voltage on the device.
The Step Up regulator is inactive when the device is not
transmitting.
FIGURE 5-2:
APPLICATION CIRCUIT
FIGURE 5-3:
TYPICAL LOADING CURVES (FIGURE 5-2 CIRCUIT)
TABLE 5-2:
STEP UP CIRCUIT CHARACTERISTICS
Note:
Power to the Step up regulator is taken
from the V
DDB
pin. While V
DD
is limited to
a 3.5V minimum, V
DDB
minimum can be as
low as 2.0V for the Step Up circuit to start
operating.
S0
S1
S2
STEP
V
DD
DATA
V
SS
V
DDB
V
DD
Tx out
Three button remote control with Step up regulator
2.0-6.0V
External components sample values:
R = 5.1 K
L = 390 uH
Q = 2N3904
C = 1.0 uF D = ZHCS400CT (40V 0.4A Zetex)
R
L
D
C
Q
Symbol
Parameters
Min.
Typ.
Max.
Units
Conditions
f
STEP
V
STEP
Note:
Output frequency
Reference voltage
These parameters are characterized but not tested.
125
5.5
200
6.5
250
7.5
kHz
V
V
DDB
= 3V
0
1
2
3
4
5
6
7
8
0
5
10
15
20
Load(mA)
V
Vddb=2V
Vddb=2.5V
Vddb=3V
Vddb=3.5V
Note:
These are typical values not tested in production.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCS20HMSR | Radiation Hardened Dual 4-Input NAND Gate |
| HCS20D | Radiation Hardened Dual 4-Input NAND Gate |
| HCS20DMSR | Radiation Hardened Dual 4-Input NAND Gate |
| HCS20K | Radiation Hardened Dual 4-Input NAND Gate |
| HCS20KMSR | Radiation Hardened Dual 4-Input NAND Gate |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCS2-01 | 制造商:Richco 功能描述:HINGED CABLE SADDLE,NAT,16MM CBL |
| HCS201/P | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3.5-13V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| HCS201/SN | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3.5-13V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| HCS201_11 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ? Code Hopping Encoder 34-bit fixed code (28-bit serial number |
| HCS201-I/P | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3.5-13V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。