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MT9172AP
MT9172AP
| Part Number | MT9172AP |
|---|---|
| Manufacturer | Mitel (Later Zarlink Semiconductor, Now Microchip Technology) |
| Category | Integrated Circuits (ICs) > Interface – Telecom ICs |
| Description | High-performance CMOS Digital Subscriber Line Interface Circuit (DNIC) supporting full-duplex high-speed data transmission over twisted-pair copper wire with integrated transceiver and channel formatter modules. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The MT9172AP DNIC was originally designed by Mitel, later produced under Zarlink Semiconductor and now owned by Microchip. Built on low-power CMOS technology, this single-chip transceiver delivers full-duplex digital transmission over one twisted copper pair. It supports Echo Cancellation and TCM multiplexing, and natively processes standard 2B+D ISDN channels. Housed in a 28-pin PLCC package with integrated adaptive line equalizer and sync circuits, it serves digital phones, PABX systems, enterprise communication hardware and industrial telemetry equipment with low signal distortion.
Core Advantages
Full-Duplex Digital Wire Transmission
Supports stable bidirectional high-speed digital voice and data transmission over common single twisted-pair copper cables, eliminating complex multi-wire wiring schemes.
Integrated On-Chip Equalization Architecture
Built-in adaptive line equalizer automatically compensates high-frequency attenuation, phase distortion and signal loss caused by long-distance cable transmission.
Flexible Multi-Channel Formatting
Supports standard 2B+D channel framing, realizing stable synchronization and complete data transmission reliability between peripheral data interfaces and telecom bus.
Low Power Dissipation Profile
Adopts optimized CMOS manufacturing process to keep static and dynamic power consumption at low levels, avoiding heat accumulation inside compact multi-line switch cabinets.
Key Specifications
| Brand | Mitel / Zarlink / Microchip Technology |
|---|---|
| Die Process Technology | ISO2-CMOS 1.5μm Low Noise Process |
| RoHS Status | RoHS Lead-Free Compliant (Later production batches) |
| Moisture Sensitivity Level | MSL 1 (Unlimited Floor Life, No Baking Required) |
| EDA/CAD Model | 3D STEP Models, Schematic Symbols, and PCB Layout Footprints available upon request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | PLCC-28 (28-Pin) |
| Mounting Type | Surface Mount Technology (SMD/SMT) / Socket Compatible Placement |
| Surface Marking / Silkscreen | MT9172AP Marking |
| Interface Topology Class | Digital Network Interface Circuit (DNIC) / ISDN Layer 1 Transceiver |
| Maximum Data Transmission Rate | Hardware selectable line rate up to 160 kbps; Standard ISDN 2B+D service bandwidth is 144 kbps full-duplex |
| Maximum Loop Reach | Up to 4km over standard AWG twisted-pair telecom cable |
| Line Interface Modes | Supports Echo Cancellation and Time Compression Multiplexing (TCM / Ping-Pong) Modes |
| Channel Formatting Capability | Dual 64 kbps B Channels and single 16 kbps D Channel (2B+D configuration) |
| Supply Voltage Range | 4.75V ~ 5.25V DC |
| Nominal Operating Voltage (VDD) | 5.0 V DC (Standard TTL/CMOS Level Interface Buffer Rails) |
| Typical Power Dissipation | Typical 50mW Low Power Consumption |
| System Bus Interface Compatibility | ST-BUS (Serial Telecom Bus) industry-standard timing structure |
| ST-BUS Clock Rate | 2.048MHz Synchronous Timing Clock |
| Operating Temperature Range | -40°C to +85°C (Industrial and Telecommunication Grade Performance Envelope) |
Typical Applications
- Private Automatic Branch Exchange (PABX) Systems and Central Office Line Cards
- Digital Proprietary Telephones, ISDN Terminals, and Enterprise Intercom Communication Matrices
- Industrial Telemetry Systems, Long-Distance SCADA Sensor Links, and Remote Data Collectors
- Integrated Voice and Data (IVD) Workstations and Dedicated Voice-over-IP (VoIP) Auxiliary Gateways
- Automated Rail and Highway Signalling Networks Requiring Long-Wire Digital Transceivers
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your currently available stock of the MT9172AP transceiver chip 100% genuine and original?
A: Yes, we guarantee that all MT9172AP units in our inventory are 100% brand-new, factory-original products. Early stock silkscreen marked Mitel, later versions marked Zarlink. Every batch passes strict warehouse QC inspection and is packed in anti-static PLCC tubes or trays to protect chip pins from deformation.
Q2: What is the primary function of the ST-BUS interface on the MT9172AP?
A: The ST-BUS (Serial Telecom Bus) is a synchronous TDM serial interface running at 2.048 Mbps. On MT9172AP, it serves as the main data bus, connecting voice/data channels to digital switches, audio codecs or main control MCU without extra complex peripheral logic.
Q3: How far can the MT9172AP transmit digital data over a standard twisted-pair copper cable network?
A: The actual transmission distance depends on wire gauge, cable quality, electromagnetic interference and working mode (Echo Cancellation). Thanks to built-in high-gain adaptive equalizer, this chip supports up to 4km stable communication under standard telecom loop environments.
Q4: How can our physical engineering group get formal component engineering drawings or request bulk wholesale pricing tiers?
A: Please fill out the Quick Inquiry form on this page with your target purchase quantity. Our technical sales team will send complete technical documents and tiered bulk price within 24 hours.
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