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MX613, MX613DW, MX614

Table of contents:
Info of MX613
Info of MX613DW
Info of MX614

MX613, MX613DW, MX614 Selling Leads, Datasheet

MFG:CML Package Cooled:SOP16 D/C:00+

MX613, MX613DW, MX614 Datasheet download

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Part Number: MX613

MFG: CML

Package Cooled: SOP16

D/C: 00+

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MX613 General Description

The MX613 is a wide-band, 'N-Tone' non-predictive tone decoder that measures telephone system call progress tones in PABX, Pay/Feature-Phone, Fax and Modem systems.

Adhering to Must/Must-Not Decode limits and able to measure inband frequencies in outband modulation, this decoder measures the frequency of input signals in the range 300 to 2,150Hz. The result of each measurement is presented to a system µProcessor as a 6-bit serial word.

The decode frequency range, which covers the world's call progress application spectrum, is processed internally as two bands: LO = 300 to 660Hz and HI = 900 to 2150Hz. Frequency measurement is achieved by counting the number of cycles in a set time period

(LO = 39.47ms or HI = 13.16ms). Bad signal/level quality or NOTONE results in a count-abort, timing-reset and no output from the decoder.

Front-end filtering is achieved using our patented Auto-Correlator. Current frequency information is output for the Processor using a Serial Data, Clock and Interrupt interface.

Data from the MX613 should be processed by a µProcessor whose algorithms are able to recognize the frequency, sequence and/or cadence of input signals as national call progress information; e.g.: 'Dial,' 'Busy,''Number-Unobtainable,''Ringing' and automatic tones used by fax and modem systems. Software can be simply configured to reject speech frequencies.

Available in SOIC and PDIP packages, this low-cost, mixed signal IC has a typical power requirement of less than 1mA at 3 volts and utilizes a telecom-system clock input of 3.579545MHz to maintain frequency accuracy.

MX613 Maximum Ratings

Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is not suggested.
Supply Voltage ............................................-0.3 to 7.0V
Input Voltage at any pin
(ref V_SS=0V).....................................-0.3 to (V_{_DD} + 0.3V_⁾Sink/Source Current
(supply pins)....................................................+/- 30mA
(other pins)......................................................+/- 20mA
Total Device Dissipation
@ T_AMB=25..............................................800mW max
Derating..........................................................10 mW/
Storage Temperaturerange......................-40to +85

MX613 Features

·MXïCOM MiXed Signal CMOS
·Covers Worldwide Call Progress Frequencies (300Hz TO 2150Hz)
·Decode Single or Modulated Tones
·Analog In / Serial Data Out
·µProcessor Compatible Outputs
·Speech Discrimination Ability
·Low Power Operation

MX614 General Description

The MX614 is a low voltage, low power CMOS integrated circuit designed for the reception or transmission of asynchronous 1200bps data. This device is compatible with Bell 202 type systems. The MX614 supports 5bps and 150bps 'back channel' operation. Asynchronous data rates up to 1818bps are also supported. The MX614 provides an optional Tx and Rx data retiming function which can eliminate, based on user preference, the need for a UART in the associated µC when operating at 1200bps. An optional line equalizer has been incorporated into the receive path and is controlled by an external logic level.

The MX614 may be used in a wide range of telephone telemetry systems. A very low current "Zero Power Mode (1µA typ.) and an operating current of 1mA typ. @ VDD = 3.3V, make the MX614 ideal for portable, terminal and line powered applications. A standard 3.58MHz Xtal/Clock is required and the device operates from a 3.0V to 5.5V supply.

The MX614 is available in 24-pin TSSOP (MX614TN), 16-pin SOIC (MX614DW) and 16-pin PDIP (MX614P) packages.

MX614 Maximum Ratings

General	Min.	Max.	Units
Supply (V_DD- V_SS)	-0.3	7.0	V
Voltage on any pin to VSS	-0.3	V_DD+0.3	V
Current into or out of and pins
V_DD	-30	30	mA
V_SS	-30	30	mA
Any other pins	-20	20	mA
DW / PDIP Packages
Total Allowable Power Dissipation at TAMB = 25°C		800	mV
Derating above 25°C		13	mW/°Cabove25°C
Storage Temperature	-55	125	°C
Operating Temperature	-40	85	°C

MX614 Features

• 1200bps - 1800bps half duplex Bell 202 Compatible Modem
• Optional 1200bps Data Retiming Facility can eliminate external UART
• Optional 5bps and 150bps Back Channel
• Optional Line Equalization

MX614 Typical Application

• Low Voltage Operation (3.3V to 5.0V)
• Low Power Operation 1mA typ. @ 3.3V Operating Mode 1A typ. Zero-Power Mode
• Standard 3.58MHz Xtal/Clock
• Telephone Telemetry Applications

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