MC145574

ISDN S/T-Interface Transceiver

INTRODUCTION TheMC145574isMotorola’ssecondgenerationS/Ttransceiverandisafollow–uptotheMC145474/75transceiver. TheMC145574providestheimprovedinterfacingcapabilitiesandreducedpowerconsumptionrequiredbytoday’sISDNapplications,whilemaintainingthefunctionalityan

MC145574

ISDN S-Interface Transformers

MC145574

ISDN S/T-Interface Transceiver;

恩XP

MC145574A

ISDN S/T-Interface Transceiver II; \n •Fully-Activated Power Consumption of 90 mW\n •6-Channel Timeslot Assigner\n •Interchip Digital Link-2 (IDL2)\n •General Circuit Interface (GCI)\n •Compliant with ANSI T1.605-1991, ITU-TI.430, and ETSI ETS 300\n 012\n •Control, Status, and Maintenance Functions Accessible Through\n Serial Control Port (SCP)\n •Pin-Selectable Network Termination (NT) or Terminal Equipment\n (TE) Operating Modes\n •Supports 2.5:1 Transformers for Transmit and Receive\n •Complete Multiframing Capability (SC1 - SC5 and Q-Channel)\n •Optional B-Channel Idle, Invert, or Exchange\n •Supports Full Range of S/T and IDL Loopbacks\n •Transmit Power Down, Sleep, and Absolute Minimum Power Modes\n •Crystal or External Clock Input Modes\n •Support for NT Star and NT Terminal Modes\n •Supports TE Slave-Slave Mode\n\nAdvantages\n\n •Minimal Power Requirements Ease Power Management and System\n Design\n •On-Chip Mean Fewer External Components and Lower\n System Cost\n •Versatile Digital Interface Enhances Design Flexibility\n •Superior Transmission Performance Results in Increased System\n Quality and Performance\n •Evaluation Kit and Comprehensive Applications Support from NXP®\n;

Overview The MC145574A second-generation S/T-Interface Transceiver provides an economical VLSI Layer 1 interface for the transportation of two 64 kbps B channels and one 16 kbps D channel between the network termination (NT) and terminal equipment (TE). The MC145574A conforms to CCITT I.430, ANSI T1.605, and ETSI ETS 300 012 specifications. The device provides the modulation/line-drive and demodulation/line-receive functions required of the interface. In addition, it provides activation/deactivation, error monitoring, framing, bit, and octet timing. The MC145574A provides the control signals for the interface to the Layer 2 devices. Complete multiframe capability is provided. The Interchip Digital Link (IDL2) is supported for the exchange of 2B+D channel information between ISDN components and systems. Transceiver operation is programmed through the industry standard Serial Control Port (SCP). As an alternative to IDL+SCP combination, a General Circuit Interface (GCI) is provided.

恩XP

MC145574PB

ISDN S/T-Interface Transceiver; The features of the MC145574 are described below.\n• Conforms to CCITT I.430, ETSI ETS 300012, and ANSI T1.605 Specifications\n• Register Compatible With the First Generation MC145474/75\n• Exceeds Q.502 Jitter Requirements for TE Slave Applications\n• Pin Selectable NT or TE Modes of Operation\n• Incorporates the IDL2, With Timeslot Assigner\n• Industry Standard Microprocessor SCP\n• GCI Interface\n• Uses 2.5:1 Transformers for Transmit and Receive\n• Exceeds the Recommended Range of Operation in All Configurations\n• Complete Multiframing Capability Supported (SC1 – SC5 and Q Channel)\n• Optional B Channel Idle, Invert, or Exchange\n• Supports Full Range of S/T and IDL2 Loopbacks\n• Supports Transmit Power–Down, Listening, and Absolute Minimum Power Modes\n• Supports Crystal or External Clock Input Mode\n• NT Star and NT Terminal Modes Supported\n• Low Power Consumption\n• Compatible with 3 V Devices ;

INTRODUCTION\nThe MC145574 is Motorola’s second generation S/T transceiver and is a follow–up to the MC145474/75 transceiver.\nThe MC145574 provides the improved interfacing capabilities and reduced power consumption required by today’s ISDN applications, while maintaining the functionality and extended range perfor mance of the MC145474/75.\nThe MC145574 provides an economical VLSI layer 1 interface for the transportation of two 64 kbps B channels and one 16 kbps D channel between the network termination (NT) and terminal equipment applications (TEs). The MC145574 conforms to CCITT I.430, ETSI ETS 300012, and ANSI T1.605 specifications.\nThe MC145574 provides the modulation/line drive and demodulation/line receive functions required of the interface. In addition, the MC145574 provides the activation/deactivation, error monitoring, fram ing, bit, and octet timing. The MC145574 provides the control signals for the interface to the layer 2 devices. Complete multiframe capability is provided.\u0006\u0005\u0004 \nFEATURES\nThe features of the MC145574 are described below.\n• Conforms to CCITT I.430, ETSI ETS 300012, and ANSI T1.605 Specifications\n• Register Compatible With the First Generation MC145474/75\n• Exceeds Q.502 Jitter Requirements for TE Slave

恩XP

MC145574EVK

ISDN S/T-interface Transceiver Evaluation Kit

ETC

MC145574EVK/D

ISDN S/T-interface Transceiver Evaluation Kit

ETC

MC145574EVKSLASHD

ISDN S/T-interface Transceiver Evaluation Kit

ETC