MX014P

更新时间： 2024-11-06 10:40:11

品牌	Logo	应用领域
CMLMICRO		/
页数	文件大小	规格书
12页	197K
描述
Voice Band inverter

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中文翻译

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数据手册

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MX014P 数据手册

DATA BULLETIN

Voice Band inverter

MX014

Features

Applications

• CTCSS Compatible

• Land Mobile Radio Systems

• Community Repeaters

• Fixed Frequency Inversion

• Low Power CMOS

TX Audio Feedback

Path Invert

6dB/Octave

De-emphasis

TX Audio Out

RX Audio Out

TX Audio In

6dB/Octave

Pre-emphasis

10dB Gain

Bandpass

Filter

300-3033 Hz

Bandpass

Filter

300-3033 Hz

BIAS

Filsav 1

Rx Path

BIAS

RX Path

Carrier

RX Audio In

Filsav 1

Filsav 2

RX Audio Feedback

RX Path

Clock

3333 Hz

PTT

Carrier

CLK

3333 Hz

Filsav 1

CLK Generator

PTT

Filsav 2

RX Path

RX Audio Enable

LOGIC

RX Audio Enable

EMPSAV

PTL

V_DD

V_SS

Path Invert

Privacy Enable

BIAS

The MX014 Voice Band Inverter gives the security of private voice communications to land mobile radio users, as well as

to the users of other shared radio channel systems. Designed for use in half-duplex systems, the MX014 exchanges high

and low frequencies in the voiceband and renders transmitted messages unintelligible. This privacy function is achieved

by a single frequency inversion. When used with CTCSS, PvtSQUELCH^TMprivacy adapter operation is achieved.

Sharp cut-off in the internal voiceband filters permits operation with CTCSS and similar sub-audio signaling schemes. This

results in high quality recovered audio.

The core of the MX014 consists of two audio band pass filters and a balanced modulator. The device uses a

programmable clock divider which controls the carrier and filter cut-off frequencies. Control of the RX/TX, PTL and

privacy function is by pin selection.

The MX014 operates from a single 5V supply and uses a 4 MHz crystal oscillator to ensure the correct pitch in recovered

speech. Signal coupling and decoupling are the only external components needed. The device is available in 24-pin

PLCC (MX014LH), 24-pin PDIP (MX014P) and 24-pin CDIP (MX014J) packages.

1997 MX•COM, INC.

www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: 910 744 5054

Doc. # 20480013.006

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

All trademarks and service marks are held by there respective companies.

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中文翻译

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