EEWORLDEEWORLDEEWORLD

Part Number

Search

MX803A

Description
DATA BULLETIN Audio Signaling Processor
File Size312KB,27 Pages
ManufacturerCML Microcircuits
Websitehttp://www.cmlmicro.com/
Download Datasheet View All

MX803A Overview

DATA BULLETIN Audio Signaling Processor

COMMUNICATION SEMICONDUCTORS
MX803A
Audio Signaling Processor
PRELIMINARY INFORMATION
DATA BULLETIN
Features
Full Duplex Audio Signaling Processor
Single Tone
Selective Call systems
Tone Decoder with
programmable NOTONE timer.
Two Individual tone encoders and a
programmable TX Period Timer.
Low Power CMOS Device
On-Chip programmable amplifier.
C-BUS Compatible
SIGNAL INPUT BIAS
DIGITAL
NOISE
FILTER 1
RX FILTER
SWITCH
Applications
Signaling Systems supported
SelCall (CCIR, EEA, ZVEI I / II /III)
2-Tone SelCall
DTMF Encode
Inband Tone Signaling capability for LMR
and other Radio Systems.
(RX)
AUDIO IN
DIGITAL
NOISE
FILTER 2
COMMAND DATA
QUALITY
METER
PROGRAMMABLE
NOTONE
TIMER
REPLY DATA
GATE TIME
GENERATOR
C-BUS
INTERFACE
AND
CONTROL
LOGIC
CHIP SELECT
INTERRUPT
SERIAL CLOCK
LOGIC INPUT
FREQUENCY
COUNTER
V
DD
PROGRAMMABLE
(TX PERIOD)
TIMER
V
BIAS
TONE 1
GENERATOR
5-/2-TONE
DTMF 1
LOW
PASS
FILTER
TONE 1 OUT
SUM IN
SWITCHED SUM OUT
V
SS
_
V
BIAS
XTAL/
CLOCK
XTAL
AUDIO SWITCH IN
AUDIO
SWITCH
SUMMING
SWITCH
SUM OUT
CAL/CUES OUT
+
SUMMING
AMPLIFIER
CUES
CAL/CUES
SWITCH
CLOCK
GENERATOR
CAL
TONE 2
GENERATOR
CUES/DTMF 2
LOW
PASS
FILTER
TONE 2 OUT
SWITCH OUT
The MX803A is an audio signaling processor that provides inband tone signaling capabilities for LMR and
other Radio systems. A low-power CMOS device, the MX803A is a member of the DBS800 (Digitally
integrated Baseband Sub-system) IC family (See section 4.2). Supported Signaling systems include SelCall
(CCIR, EEA, ZVEI I, II, and III) 2-Tone SelCall and DTMF encode. The use of a non-predictive decoder and a
versatile encoder, allows the MX803A to operate in any standard or non-standard tone system.
The MX803A is a full-duplex device for use with Single Tone or Selective Call systems. The MX803A consists
of a tone decoder with a programmable NOTONE timer, two individual tone encoders and a programmable TX
period timer, and an on-chip summing amplifier. Under the control of a
µC,
the MX803A will simultaneously
encode and transmit 1 or 2 audio tones in the 208-3000Hz range, as well as detect, decode, and indicate the
frequency of any non-predicted input tone in the frequency range of 313 to 6000Hz.
The MX803A is available in 24-pin PDIP (MX803AP), 24-pin PLCC (MX803ALH), and 24-pin SOIC
(MX803ADW) packages.
©2001 MX•COM, INC.
www.mxcom.com
Tele: 800 638 5577 336 744 5050
Fax: 336 744 5054
Doc. # 20480122.005
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
I made a Tetris block, but it can't be passed in the global variable
This is the first time I encountered this situation. I typed it because I was angry, but I still couldn’t pass it.ELUOSI.C(25): error C244: 'shit': can't initialize, bad type or classELUOSI.C(25): err...
serenityprayer 51mcu
wince memory leak?
I used evc to develop an application program, and used a timer. When there was no code added manually in the timer, I checked the memory in use in the program memory, and there was no change. When I a...
pl2005t Embedded System
From C to Embedded C Programming Language
From C to Embedded C Programming Language_Introduction·Practical·In-depth...
huzai2008 Embedded System
What kind of driver should I write to distinguish and process the data of the laptop's USB Mouse and touchpad?
It should be the filter driver, right? But I only see the PS/2 sample in WDK. Does it mean that the USB HID Mouse on the notebook is not supported? Can anyone give me some advice? 3KS...
zhutaime Embedded System
Is it possible to control file attributes on Windows?
Can I control file attributes on Windows? For example, in C#, FileInfo fi = new FileInfo(textBox1.Text); fi.IsReadOnly == false...
ibmibm Embedded System
Application of RS485 bus isolation module MRT485DLT in STM32F103VET system
Note: In a low-power system, when entering a low-power state, the MCU's serial port needs to be set to a high-impedance state to avoid unnecessary power consumption caused by leakage current from the ...
伊亓 Industrial Control Electronics

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 760  487  1313  1759  622  16  10  27  36  13 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号