參數(shù)資料
型號(hào): EM78568
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-BIT MICRO-CONTROLLER for FRS
中文描述: 8位微控制器為FRS
文件頁(yè)數(shù): 5/54頁(yè)
文件大?。?/td> 494K
代理商: EM78568
EM78568
8-bit Micro-controller for FRS
__________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice.
07/28/2004 V3.5
CTCSS block
Operating voltage : 2.7V
Microphone amplifier (can be used as general OP Amp)
Microphone mute function
RX input OP
Audio BPF (300Hz ~ 3400Hz)
Sub-audio LPF (60Hz ~ 253Hz) for CTCSS tone detection
Zero-crossing for detected CTCSS tone frequency output
CTCSS Tx modulation summing Amp
POVD
Power-on voltage detector reset
Without external reset circuit while enabling
LCD
Common driver pins : 4
Segment driver pins : 20
1/3 bias
1/4 duty, 1/2 duty
16 Level LCD contrast control by software
PACKAGE
100-pin QFP (EM78568Q)
63-pin die (EM78568H)
III. Application
FRS (Family Radio Systems) and other wireless portable products
5.5V
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