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
文件頁數(shù)： 51/54頁
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
OSC and reset timing characteristics (see Fig.25 in page 50 for details)
Description
Oscillator timing characteristic
OSC start up
Reset timing characteristic
The minimum width of reset low pulse
The delay between reset and program start
Symbol
Min
Typ
Max
Unit
32.768kHz
3.579MHz PLL
Toscs
400
1500
10
ms
us
5
Trst
Tdrs
3
uS
mS
18
TONE generators for AC Characteristic (AVDD=VDD=5V,Ta=+25
°
C)
CHARACTERISTIC
Tone1/Tone2 signal strength (root mean square voltage)
Tone1 signal strength V1rms (ps1) ~= -14dBm (600
Tone2 signal strength V2rms (ps1) ~ = -12dBm (600
Tone twist
(Tone1 – Tone2) twist
(ps1) : V1rms and V2rms has 2 dB difference. It means 20log(V2rms/V1rms) = 20log1.259 = 2 (dB)
Min
Typ
Max
Unit
)
)
130
155
180
mV
mV
1.259V1rms
-2
dB
CTCSS block (AVDD=VDD=5V,Ta=+25
°
C)
Parameter
RX mode
Zero crossing threshold (mVrms)
Data Duty Ratio
TX mode
CTCSS tone (form Tone 2) to VTX3, for
CTCSS tone to MTX, for
Filter
BPF for Audio
Pass-Band Frequency
Pass-Band Ripple
LPF for Sub-Audio
Pass-Band Frequency
Pass-Band Ripple
Min.
Typ. Max. Unit
20
50
70
mV
%
30
-12
-22
dBm
dBm
300
3400
1.0
Hz
dB
60
253
1.0
Hz
dB
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EM78569 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER
EM785830AA 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER
EM785830AAM 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER
EM785830AAP 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER
EM785830AD 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER
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