MX641DW

更新时间： 2024-11-04 11:57:07

品牌	Logo	应用领域
CMLMICRO		/
页数	文件大小	规格书
17页	201K
描述
Dual SPM Detector

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数据手册

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MX641DW 数据手册

MX641

Dual SPM Detector

COMMUNICATION SEMICONDUCTORS

DATA BULLETIN

PRELIMINARY INFORMATION

Features

Applications

•

Two (12kHz / 16kHz) SPM Detectors on a

Single Chip

•

Call Charge Applications on PABX Line Cards

•

Remote Telephone Applications

•

Detects 12 or 16kHz SPM Frequencies

‘Controlled’ (µC) & ‘Fixed’ Signal Sensitivity

Modes

•

Selectable Tone Follower or Packet Mode

Outputs

•

High Speech-Band Rejection Properties

‘Output Enable’ Multiplexing Facility

CLOCK OUT

CLOCK IN

XTAL/CLOCK

XTAL

BIAS

XTAL/CLOCK

GENERATOR

CLOCK

DIVIDERS

INTERNAL

CLOCKS

BUFFER

12kHz/16kHz

SYSTEM

TONE FOLLOWER

MODE

Ch 1 AMP OUT

Ch1 AMP IN (-)

Ch 1

OUTPUT

COMPARATOR

PULSE

MEASUREMENT

LOGIC

Ch 1

BANDPASS

FILTER

PULSE

LENGTH

LOGIC

OUTPUT

SELECT

CIRCUITS

GENERATOR

AND

DIVIDER

Ch1 AMP IN (+)

PACKET

MODE

INPUT

INTERNAL

COMPARATOR

THRESHOLD

AMPLIFIER

GAIN

ADJUST

CHANNEL 1

PRESET LEVEL

CHIP SELECT

OUTPUT

ENABLE

12kHz/16kHz

SYSTEM

SERIAL

DATA

12kHz/16kHz

SYSTEM

SERIAL

INPUT

LOGIC

LEVEL/

SYSTEM

SETTING

OUTPUT

SELECT

SERIAL

CLOCK

SYSTEM SELECT

INTERNAL

COMPARATOR

THRESHOLD

GAIN

ADJUST

CHANNEL 2

INPUT

PACKET

MODE

AMPLIFIER

Ch2 AMP IN (-)

PULSE

GENERATOR

AND

PULSE

MEASUREMENT

LOGIC

Ch 2

BANDPASS

FILTER

PULSE

LENGTH

LOGIC

OUTPUT

SELECT

CIRCUITS

DIVIDER

Ch2 AMP IN (+)

Ch 2 AMP OUT

Ch 2

OUTPUT

COMPARATOR

TONE FOLLOWER

MODE

The MX641 is a low-power, system-selectable Dual Subscriber Pulse Metering (SPM) Detector designed to

indicate the presence, on a telephone line, of either 12kHz or 16kHz telephone call-charge frequencies. It is

designed for PBX and PABX line-card and remote telephone installations. Under µProcessor control via a

common serial interface, each channel of the MX641 will detect call-charge pulses from a telephone line and

provide a digital output for recording, billing or security purposes. A common set of external components and

a stable 3.579545MHz Xtal/clock input ensures that the MX641 adheres accurately to most national “Must

and Must-Not” decode band-edges and threshold levels. For non-µProcessor systems a preset

sensitivity/system input allows external channel level and system setting

The digital output is pin-selectable to one of three modes:

(1) Tone Follower mode: logic level for the period of a correct decode.

(2) Packet mode: respond/de-respond after a cumulative period of tone or notone in a fixed (intrinsic

hardwired period that is not user controlled) period.

(3) High-impedance output: for device multiplexing.

The MX641 requires a 5V supply and is available in the following packages: 24-pin SOIC (MX641DW) and

24-pin PDIP (MX641P)

ã2001 MX-COM, Inc.

www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054

Doc. # 20480115.004

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

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

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与MX641DW相关器件

型号	品牌	获取价格	描述	数据表
MX641P	CMLMICRO	获取价格	Dual SPM Detector
MX643	CMLMICRO	获取价格	Call Progress Tone Detector wlth Special Information Tones(SIT)
MX643DW	CMLMICRO	获取价格	Call Progress Tone Detector wlth Special Information Tones(SIT)
MX643P	CMLMICRO	获取价格	Call Progress Tone Detector wlth Special Information Tones(SIT)
MX6506A	MICROSEMI	获取价格	Rectifier Diode, 8 Element, 0.3A, Silicon, HERMETIC SEALED, CERAMIC, DIP-14
MX6507A	MICROSEMI	获取价格	Rectifier Diode, 8 Element, 0.3A, Silicon, HERMETIC SEALED, CERAMIC, DIP-16
MX6509A	MICROSEMI	获取价格	Rectifier Diode, 16 Element, 0.3A, Silicon, CERAMIC, DIP-14
MX651	CMLMICRO	获取价格	Telephone Subscriber Pulse Metering & Anti Fraud Tone Processor
MX6510A	MICROSEMI	获取价格	Rectifier Diode, 8 Element, 0.3A, Silicon, HERMETIC SEALED, CERAMIC PACKAGE-14
MX6511A	MICROSEMI	获取价格	Rectifier Diode, 8 Element, 0.3A, Silicon, HERMETIC SEALED, CERAMIC, DIP-14

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