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| 型号： | CME8000-TLSH |
| 厂商： | C-Max |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC RECEIVER RC BICMOS 28-SSOP |
| 标准包装： | 60 |
| 频率： | 40kHz ~ 120kHz |
| 灵敏度： | -115dBm |
| 调制或协议： | UTC - 通用时间代码 |
| 应用： | 无线电控制计时 |
| 电流 - 接收： | 2mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 1.2 V ~ 5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-LSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-SSO |
| 包装： | 管件 |
| 产品目录页面： | 557 (CN2011-ZH PDF) |
| 其它名称： | 561-1007-5 CME8000-TL |
Data Sheet
CME8000
Receiver IC
1 Short Description
The CME8000 is a BiCMOS integrated straight through receiver with build in very high sensitivity
and a pre-decoding of the time signal transmitted from WWVB, DCF77, JJY, MSF and HBG. The
receiver is prepared for multi-mode reception by using an integrated logic. Integrated functions as
stand by mode, integrated antenna switching, integrated crystal switching and a hold mode
function offer features for universal applications.
The power down mode increases the battery lifetime significantly and makes the device ideal for all
kinds of radio controlled time pieces.
2 Features
o
o
o
o
o
o
Low power consumption (<100μA)
Very high sensitivity (0.4μV)
Build in pulse decoding for different protocols
Switchable for 3 different frequencies
High selectivity by using crystal filter
Power down mode
o
o
o
o
o
o
Automatic protocol recognition
Pre-decoded protocol information
Fast data transfer to CPU (100ms)
Use of the CPU clock (32768Hz)
Improved noise resistance
Integrated AGC adaptation
o
o
o
o
o
o
o
o
Only a few external components necessary
AGC hold mode
Wide frequency range (40 ... 120 kHz)
Low power applications (1.2 .. 5.0 V)
Benefits
Extended Battery operating time
Decoding of the signal extremely simplified
Simplified micro controller software
Simplified multi frequency handling
Two built-in low impedance antenna switches
(40 Ohm/3V)
o True Bit strength indication
o Easy world time piece design
o Automatic country recognition
o True signal quality information
Block Diagram
QIN
QLOUT
QMOUT QHOUT
VCC
VL
PON
GNDL
ANT1
crystal switch
Bias
CLKSEL
IN1
IN2
rect.-
AGC
TCO
Logic
I/O
Unit
CLOCK
DR
DATA
DT
BSI1
ANT2
AGC
contr. unit
BSI2
GND
DEM
PK
SS1
SS2
TEST
HLD
Figure 1.
SPEC No.
CME8000
Revision
B.15
State
09.03.07
C-MAX printed
03.05.2007
Version
English
Page
1 of 21
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