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MX214J

更新时间： 2025-07-22 10:40:07
品牌 Logo 应用领域
CMLMICRO /
页数 文件大小 规格书
17页 234K
描述
Variable Split Band Inverter

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中文翻译

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MX214J 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：DIP, DIP22,.4针数：22
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.84JESD-30 代码：R-GDIP-T22
长度：27.175 mm功能数量：1
端子数量：22最高工作温度：85 °C
最低工作温度：-30 °C封装主体材料：CERAMIC, GLASS-SEALED
封装代码：DIP封装等效代码：DIP22,.4
封装形状：RECTANGULAR封装形式：IN-LINE
电源：5 V认证状态：Not Qualified
座面最大高度：5.84 mm子类别：Other Telecom ICs
标称供电电压：5 V表面贴装：NO
电信集成电路类型：TELECOM CIRCUIT温度等级：OTHER
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL宽度：10.16 mm
Base Number Matches：1

MX214J 数据手册

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DATA BULLETIN  
Variable Split Band  
Inverter  
MX214/224  
Features  
Applications  
ꢁ CTCSS Highpass Filter  
ꢁ Good Recovered Audio Quality  
ꢁ Fixed and Rolling Code Modes  
ꢁ Mobile Radio Voice Security  
ꢁ Cellular Telephone Voice  
Security  
ꢁ Serial (MX214) and Parallel (MX224)  
Loading Options  
ꢁ 32 Programmable Split Points  
ꢁ Half-Duplex Capability  
POWERSAVE  
LOAD / LATCH  
XTAL / CLOCK  
1MHz  
SERIAL CLOCK  
INPUT LATCHES  
XTAL  
OSC  
ENABLE / MUTE  
EN / MUTE  
CLEAR / SCRAMBLE  
Rx / Tx  
CLEAR / SCRAMBLE  
Rx / Tx (SER / PAR)  
1MHz  
A0  
V
A1  
A2  
A3  
A4  
DD  
CLOCK  
DIVIDER  
CLOCK  
DIVIDER  
ROM  
V
BIAS  
V
SS  
CK  
B
CK  
B
PS  
CK  
A
F
F
CLOCK  
SWITCHING  
C1 C2  
Rx / Tx  
(SERIAL DATA IN)  
CK  
3
CK4  
CK  
B
PS EN Tx  
EN PS Rx  
Rx  
Rx  
Rx IN  
Tx OUT  
PS + EN Tx  
CTCSS  
CK  
3
Rx  
PS  
MUTE  
F
C2  
BIAS  
BIAS  
BIAS  
Tx  
C
5
SCRAMBLE  
FILTER 3  
FILTER 4  
CK  
PS MUTE Rx  
Rx OUT  
Tx PS  
Tx PS  
4
Σ
F
C1  
Rx  
Rx  
Tx  
Tx  
Rx  
BIAS  
CK  
4
Tx IN  
CLEAR  
FILTER 1  
FILTER 2  
CK  
Tx  
PS  
A
BIAS  
BIAS  
BIAS  
CK  
A
PS + EN Rx  
C6  
The MX214/224 Variable Split Band Inverters are designed for mobile and cellular radio voice security  
applications. Digital control functions are loaded serially into the MX214. The MX224 is loaded in parallel.  
The MX214/224 ICs include a highpass filter that rejects subaudio frequencies, ensuring full CTCSS  
compatibility. This CTCSS filter is not included on the earlier generation MX204 VSB Inverter.  
The MX214/224 splits the voiceband (300-2700Hz) into upper and lower subbands, and inverts each subband  
about itself. The ‘split point’ (defined as the frequency where the voice band is subdivided), is externally  
programmable to 32 distinct values in the 300 to 3000Hz range. In the ‘fixed code’ mode, a single point is  
used. Fixed mode operation nets approximately 4 mutually exclusive secure channels.  
In ‘rolling code’ mode, the split point is changed many times per second, usually under control of a  
microprocessor. Rolling code scrambling requires synchronization, offers higher security than fixed code  
operation, and provides a much greater number of mutually exclusive secure channels.  
The MX214/224 offers a recovered audio product close to that of a telephone. The on-chip ‘ Mute’ function is  
useful when implementing rolling code continuous synchronization schemes. ‘Powersave’ and  
‘Clear/Scramble’ controls are also included on-chip. Timing and filter clocks are derived internally from an  
on-chip 1MHz reference oscillator driven by a 1MHz crystal or clock pulse input.  
The MX214 and the MX224 operate from a single 5.0V supply and available in the following packges:  
22-pin CDIP (MX214J/MX224J), 22-pin PDIP (MX214P/MX224P), and 24-pin PLCC (MX214LH/MX224LH).  
ꢀ1998 MX-COM, Inc.  
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA  
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054  
Doc. # 20480112.002  
All trademarks and service marks are held by their respective companies.  
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