CMX625D5 datasheet, PDF - EEWORLD Datasheet

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CMX625D5: DescriptionISDN TA POTS Interface; CategoryWireless rf/communication Telecom circuit; File Size864KB，34 Pages; ManufacturerCML Microcircuits; Websitehttp://www.cmlmicro.com/

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CMX625D5 Overview

ISDN TA POTS Interface

CMX625D5 Parametric

Parameter Name	Attribute value
Maker	CML Microcircuits
Parts packaging code	SSOP
package instruction	SSOP, SSOP24,.3
Contacts	24
Reach Compliance Code	unknow
JESD-30 code	R-PDSO-G24
length	8.2 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	SSOP
Encapsulate equivalent code	SSOP24,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	2 mm
Maximum slew rate	0.0055 mA
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Telecom integrated circuit types	TELECOM CIRCUIT
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
width	5.3 mm

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CMX625

ISDN TA POTS Interface

D/625/2 July 2001

Advance Information

Features

•

SPM and Ringing Voltage Generators

•

Integrated DTMF Decoder/Encoder

•

V.23/Bell 202 FSK/Tone Generator

•

Selectable A-Law/µ-Law PCM Codec

•

IOM-2 Interface Terminal Mode and

Non-Terminal Mode (Line Card Mode)

Applications

•

ISDN NTUs with Analogue Ports

•

ISDN Line Cards

•

Wireless Local Loop Termination Cards

•

ISDN Terminals with Additional POTS Ports

•

PC based ISDN Cards with Telephone Ports

•

Billing/SPM Systems

IOM is a trademark of Siemens AG

1.1

Brief Description

The CMX625 is an integrated telecom tone generator, DTMF encoder/decoder and PCM Codec-Filter

designed for ISDN interfaces, Wireless Local Loop and other digitised speech systems. The tone

generator covers a wide range of pre-programmed tones used in analogue phone systems. Three outputs

are provided: Ringing signals, In-band tones or FSK data, and 12kHz/16kHz Subscriber Metering pulses.

The PCM Codec-Filter performs voice digitisation and reconstruction and incorporates band limiting and

smoothing with selectable A-law or µ-law companding following ITU-T recommendation G.711. The

DTMF decoder presents the serial bus interface with the DTMF dialling information received from the

telephone user and the tone generator sends the appropriate DTMF tones to this POTS interface. Other

tone standards supported are: Fax and Modem ‘answer’ and ‘originate’, ITU-T ‘R1’ and ‘R2’ signals, dual

tones for CIDCW and 'On-Hook' signalling systems and sufficient tones for simple melody generation.

The IOM -2 (ISDN Oriented Modular revision 2) industry standard serial bus provides the digital interface

to other telecommunications ICs and supports both Terminal and non-Terminal (or Line Card) modes.

The CMX625 is compatible with the CMX635 ISDN Subscriber Processor and can be used to provide the

additional POTS port. It is available in both DIP and SSOP packages.



2001 Consumer Microcircuits Limited

ISDN TA POTS Interface

CMX625

CONTENTS

Section

1.1

1.2

1.3

1.4

1.5

Page

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

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

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

External Components ............................................................................. 6

General Description ................................................................................ 7

1.5.1 IOM™-2 Serial Bus Interface ..................................................... 7

1.5.2 Terminal Mode (TE).................................................................... 8

1.5.3 Non-Terminal Mode (non-TE) ................................................. 10

1.5.4 Monitor Channel Handshake Protocol................................... 11

1.5.5 Monitor Channel Identification Command ............................ 13

1.5.6 PCM Codec-Filter ..................................................................... 13

1.5.7 Rx Input Amplifier .................................................................... 14

1.5.8 Tx Output Buffer ...................................................................... 14

1.5.9 Tone/FSK Encoder and Tone Encoder .................................. 14

1.5.10 SPM Generator ......................................................................... 17

1.5.11 Transmit Signal Control .......................................................... 17

1.5.12 Tx UART .................................................................................... 18

1.5.13 DTMF Tone Decoder ................................................................ 19

1.5.14 Register Set .............................................................................. 20

1.5.15 Programming the CMX625 ...................................................... 20

1.5.16 Glossary.................................................................................... 22

Application Notes.................................................................................. 23

1.6.1 Telecom Tones ......................................................................... 23

Performance Specification................................................................... 27

1.7.1 Electrical Performance ............................................................ 27

1.7.2 Packaging ................................................................................. 33

1.6

1.7



2001 Consumer Microcircuits Limited

D/625/2

CMX625D5 Related Products

	CMX625D5	CMX625	CMX625P4
Description	ISDN TA POTS Interface	ISDN TA POTS Interface	ISDN TA POTS Interface
Maker	CML Microcircuits	-	CML Microcircuits
Parts packaging code	SSOP	-	DIP
package instruction	SSOP, SSOP24,.3	-	DIP, DIP24,.6
Contacts	24	-	24
Reach Compliance Code	unknow	-	unknow
JESD-30 code	R-PDSO-G24	-	R-PDIP-T24
length	8.2 mm	-	31.37 mm
Number of functions	1	-	1
Number of terminals	24	-	24
Maximum operating temperature	85 °C	-	85 °C
Minimum operating temperature	-40 °C	-	-40 °C
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY
encapsulated code	SSOP	-	DIP
Encapsulate equivalent code	SSOP24,.3	-	DIP24,.6
Package shape	RECTANGULAR	-	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH	-	IN-LINE
power supply	3/5 V	-	3/5 V
Certification status	Not Qualified	-	Not Qualified
Maximum seat height	2 mm	-	5.59 mm
Maximum slew rate	0.0055 mA	-	0.0055 mA
Nominal supply voltage	3.3 V	-	3.3 V
surface mount	YES	-	NO
technology	CMOS	-	CMOS
Telecom integrated circuit types	TELECOM CIRCUIT	-	TELECOM CIRCUIT
Temperature level	INDUSTRIAL	-	INDUSTRIAL
Terminal form	GULL WING	-	THROUGH-HOLE
Terminal pitch	0.65 mm	-	2.54 mm
Terminal location	DUAL	-	DUAL
width	5.3 mm	-	15.24 mm

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