CMX867D2 datasheet, PDF - EEWORLD Datasheet

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CMX867D2: DescriptionLow Power V.22 Modem; CategoryWireless rf/communication Telecom circuit; File Size723KB，48 Pages; ManufacturerCML Microcircuits; Websitehttp://www.cmlmicro.com/; Environmental Compliance

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CMX867D2 Overview

Low Power V.22 Modem

CMX867D2 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	CML Microcircuits
Parts packaging code	SOIC
package instruction	SOP, SOP24,.4
Contacts	24
Reach Compliance Code	compli
data rate	1.2 Mbps
JESD-30 code	R-PDSO-G24
JESD-609 code	e3
length	15.365 mm
Number of functions	1
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP24,.4
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	2.67 mm
Maximum slew rate	0.011 mA
Nominal supply voltage	3 V
surface mount	YES
Telecom integrated circuit types	MODEM
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	7.425 mm

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CML Microcircuits

COMMUNICATION SEMICONDUCTORS

CMX867

Low Power

V.22 Modem

Provisional Issue

D/867/5 March 2004

Features

•

V.22, Bell 212A 1200/1200 or 600/600 bps DPSK

•

V.23 1200/75, 1200/1200, 75, 1200 bps FSK

•

Bell 202 1200/150, 1200/1200, 150, 1200 bps FSK

•

V.21 or Bell 103 300/300 bps FSK

•

DTMF/Tones Transmit and Receive

•

‘Powersave’ Standby Mode

•

Software and Hardware Compatible with CMX868

Applications

•

Telephone Telemetry Systems

•

Remote Utility Meter Reading

•

Security Systems

•

Industrial Control Systems

•

Electronic Cash Terminals

•

Pay-Phones

•

Cable TV Set-Top Boxes

1.1

Brief Description

The CMX867 is a multi-standard modem for use in telephone based information and telemetry systems.

Control of the device is via a simple high speed serial bus, compatible with most types of µC serial

interface. The data transmitted and received by the modem is also transferred over the same serial bus.

On-chip programmable Tx and Rx USARTs meeting the requirements of V.14 are provided for use with

asynchronous data and allow unformatted synchronous data to be received or transmitted as 8-bit words.

It can transmit and detect standard DTMF and modem calling and answer signals or user-specific

programmed single or dual tone signals. A general purpose Call Progress signal detector is also included.

Flexible line driver and receive hybrid circuits are integrated on chip, requiring only passive external

components to build a 2 or 4-wire line interface.

The device also features a Hook Switch Relay Drive output and a Ring Detector circuit which continues

to function when the device is in the Powersave mode, providing an interrupt which can be used to wake

up the host µController when line voltage reversal or ringing is detected.

The CMX867 operates from a single 2.7 to 5.5V supply over a temperature range of -40°C to +85°C and

is available in 24-pin TSSOP, SOIC and DIP packages.

2004 Consumer Microcircuits Limited

Low Power V.22 Modem

CMX867

CONTENTS

Section

1.1

1.2

1.3

1.4

Page

Brief Description.................................................................................. 1

Block Diagram ..................................................................................... 3

Signal List ............................................................................................ 4

External Components.......................................................................... 5

1.4.1 Ring Detector Interface........................................................... 6

1.4.2 Line Interface........................................................................... 7

General Description........................................................................... 10

1.5.1 Tx USART .............................................................................. 11

1.5.2 FSK and DPSK Modulators .................................................. 12

1.5.3 Tx Filter and Equaliser.......................................................... 13

1.5.4 DTMF/Tone Generator .......................................................... 13

1.5.5 Tx Level Control and Output Buffer..................................... 13

1.5.6 Rx DTMF/Tones Detectors.................................................... 14

1.5.7 Rx Modem Filterering and Demodulation............................ 15

1.5.8 Rx Modem Pattern Detectors and Descrambler .................. 16

1.5.9 Rx Data Register and USART ............................................... 16

1.5.10 C-BUS Interface..................................................................... 18

1.5.10.1

General Reset Command.............................. 18

1.5.10.2

General Control Register.............................. 20

1.5.10.3

Transmit Mode Register ............................... 22

1.5.10.4

Receive Mode Register ................................. 26

1.5.10.5

Tx Data Register............................................ 28

1.5.10.6

Rx Data Register ........................................... 28

1.5.10.7

Status Register.............................................. 29

1.5.10.8

Programming Register.................................. 32

Application Notes .............................................................................. 36

1.6.1 V.22 Calling Modem Application .......................................... 36

1.6.2 V.22 Answering Modem Application .................................... 37

1.6.3 Reference Diagrams.............................................................. 37

Performance Specification................................................................ 38

1.7.1 Electrical Performance.......................................................... 38

1.7.1.1 Absolute Maximum Ratings..................................... 38

1.7.1.2 Operating Limits....................................................... 38

1.7.1.3 Operating Characteristics ........................................ 39

1.7.2 Packaging.............................................................................. 46

1.5

1.6

1.7

2004 Consumer Microcircuits Limited

D/867/5

CMX867D2 Related Products

	CMX867D2	CMX867E2	CMX867P4
Description	Low Power V.22 Modem	Low Power V.22 Modem	Low Power V.22 Modem
Maker	CML Microcircuits	CML Microcircuits	CML Microcircuits
Parts packaging code	SOIC	TSSOP	DIP
package instruction	SOP, SOP24,.4	TSSOP, TSSOP24,.25	DIP, DIP24,.6
Contacts	24	24	24
Reach Compliance Code	compli	compli	compli
data rate	1.2 Mbps	1.2 Mbps	1.2 Mbps
JESD-30 code	R-PDSO-G24	R-PDSO-G24	R-PDIP-T24
length	15.365 mm	7.8 mm	31.37 mm
Number of functions	1	1	1
Number of terminals	24	24	24
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	TSSOP	DIP
Encapsulate equivalent code	SOP24,.4	TSSOP24,.25	DIP24,.6
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	IN-LINE
power supply	3/5 V	3/5 V	3/5 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	2.67 mm	1.2 mm	5.59 mm
Maximum slew rate	0.011 mA	0.011 mA	0.011 mA
Nominal supply voltage	3 V	3 V	3 V
surface mount	YES	YES	NO
Telecom integrated circuit types	MODEM	MODEM	MODEM
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	GULL WING	THROUGH-HOLE
Terminal pitch	1.27 mm	0.65 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL
width	7.425 mm	4.4 mm	15.24 mm
Is it lead-free?	Lead free	Lead free	-
Is it Rohs certified?	conform to	conform to	-
JESD-609 code	e3	e3	-
Peak Reflow Temperature (Celsius)	260	260	-
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	-
Maximum time at peak reflow temperature	40	40	-

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