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Analog Devices Inc./Maxim Integrated DS3151
- Part No.:
- DS3151
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Telecom
- Package:
- 144-BGA, CSPBGA
- Datasheet:
-
DS3151.pdf
- Description:
- IC TELECOM INTERFACE 144CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,668
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Product details
Overview
DS3151 from Maxim Integrated (now part of Analog Devices) is a single-channel Line Interface Unit (LIU) for DS3 (44.736 Mbps), E3 (34.368 Mbps), and STS-1 (51.840 Mbps) physical-layer interfacing. It integrates independent receive and transmit paths with a configurable jitter attenuator, supports B3ZS/HDB3 encoding/decoding, and operates on 3.3V supply with 5V-tolerant I/O - deployed in SONET/SDH multiplexers and digital cross-connect systems.
For engineers reviewing the DS3151 datasheet, DS3151 pinout, DS3151 application, or DS3151 equivalent, key selection considerations include its 144-pin TE-CSBGA package, hardware/CPU bus configuration modes, per-port tri-state control for protection switching, and compliance with ANSI T1.102, ITU G.703, and GR-253-CORE standards.
Technical Context
The DS3151 implements a full-duplex DS3/E3/STS-1 LIU with separate AGC/equalizer-based receiver and pulse-shaping transmitter. Its receiver recovers clock and data from AMI-coded signals, includes dual LOS detection (analog + digital), and supports optional B3ZS/HDB3 decoding with line-code violation monitoring.
The transmitter accepts binary or bipolar framer input, performs B3ZS/HDB3 encoding, generates AIS patterns (ANSI T1.107), and features programmable line build-out, gapped-clock support up to 51.84 MHz, and tri-state driver outputs - all configurable via hardware pins or 8-bit CPU bus interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rates | DS3: 44.736 Mbps ±20 ppm; E3: 34.368 Mbps ±20 ppm; STS-1: 51.840 Mbps ±20 ppm - defines supported telecom line standards and master clock input tolerances. |
| Interface Type | Bipolar (AMI) or binary framer interface - enables glueless connection to legacy DS3/E3 framers or modern digital signal processors. |
| Jitter Attenuation | Configurable in receive or transmit path - reduces accumulated jitter for stable clock/data recovery in cascaded network elements. |
| Cable Drive | 75Ω coaxial interface up to 380m (DS3), 440m (E3), or 360m (STS-1) - determines maximum unamplified span length without repeaters. |
| Power Supply | 3.3V core supply with 5V-tolerant I/O - simplifies mixed-voltage system integration and eliminates level-shifters for legacy control buses. |
| Temperature Range | 0°C to +70°C (DS3151); -40°C to +85°C (DS3151N) - specifies commercial vs. industrial operating envelope for board-level thermal design. |
| Package | 144-pin thermally enhanced CSBGA, 13mm × 13mm - enables high-density telecom card layouts with validated thermal performance under natural convection. |
Pinout & Package
DS3151 uses a 144-pin thermally enhanced chip-scale ball grid array (TE-CSBGA) package measuring 13mm × 13mm with 0.8mm pitch. The package supports efficient heat dissipation in high-density line-card applications and is compatible with standard SMT reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RXPn / RXNn | Differential analog receiver inputs | Accept AMI-encoded signals from 75Ω coax via 1:2 step-up transformer; support cable loss up to 15dB via adaptive equalizer. |
| TXPn / TXNn | Differential analog transmitter outputs | Drive 75Ω coax via 2:1 step-down transformer; output drivers are tri-stateable for protection switching and wire-OR redundancy. |
| TCLKn / RCLKn | Transmit/receive clock I/O | TCLK accepts master clock (DS3/E3/STS-1 rate); RCLK outputs recovered clock - both support polarity inversion for timing alignment. |
| TTSn / RTSn | Transmit/receive tri-state enable (active low) | Enable/disable analog outputs without halting internal operation - critical for hitless switchover in redundant LIU configurations. |
| HIZ / RST / HW | Global control terminals | HIZ forces all outputs high-Z; RST resets internal logic; HW selects hardware mode (HW=1) or CPU bus mode (HW=0). |
Key Features
| Feature | Design Value |
|---|---|
| Per-port jitter attenuator placement | Configurable in either receive or transmit path - allows optimization for upstream jitter cleanup or downstream waveform stability. |
| Integrated PRBS generator/detector | On-chip 2¹⁵−1 and 2²³−1 patterns - enables loopback diagnostics and bit-error-rate testing without external test equipment. |
| Dual-mode framer interface | Binary or bipolar (AMI) I/O - eliminates need for external line-code translators when interfacing to different generations of framing ICs. |
| Comprehensive AIS generation | Full DS3 AIS (ANSI T1.107) and E3 unframed all-ones - ensures protocol-compliant alarm signaling during fault conditions. |
| JTAG boundary scan support | IEEE 1149.1 compliant test access port - enables production ICT, in-system verification, and debug of high-speed serial interconnects. |
Applications
| SONET/SDH Multiplexers | Digital Cross-Connect Systems (DCS) |
|---|---|
|
Use Scenario: Aggregating multiple DS3/E3 tributaries into OC-3/OC-12 SONET payloads within central office transport shelves. IC Role / Device Role / Timing Role: Physical-layer line interface unit providing clock/data recovery, jitter attenuation, and AMI waveform shaping for DS3/E3 ingress/egress. Use Value: Enables deterministic jitter transfer (<0.2 UI peak-to-peak) and meets GR-253-CORE wander requirements for multi-node synchronization. |
Use Scenario: Reconfiguring DS3/E3 connectivity between service providers and enterprise customers in metro DCS nodes. IC Role / Device Role / Timing Role: Bidirectional LIU handling line-side termination, AIS generation, and local/remote loopback for provisioning and fault isolation. Use Value: Reduces test time via integrated PRBS and line-code violation detection - accelerates turn-up of new cross-connect paths. |
| ATM/Frame Relay Edge Routers | DSLAM Line Cards |
|
Use Scenario: Providing DS3 backhaul interfaces on carrier-grade edge routers connecting ATM PVCs to core networks. IC Role / Device Role / Timing Role: Line interface bridging framer ASICs to copper infrastructure - performing B3ZS encoding, clock recovery, and AIS insertion. Use Value: Supports hitless protection switching via tri-state outputs and hardware-mode configuration - maintains cell continuity during failover. |
Use Scenario: Terminating DS3 feeds from incumbent telco switches onto DSL aggregation platforms serving broadband subscribers. IC Role / Device Role / Timing Role: Physical-layer interface converting DS3 signals to backplane-framed data for ATM or IP processing stages. Use Value: Minimizes external components (no discrete equalizers or line drivers) - lowers BOM cost and improves card-level reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar line interface unit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS3151N | Identical functionality with extended temperature range (-40°C to +85°C) and same 144-pin TE-CSBGA package. | Required for industrial or outside-plant deployments where ambient exceeds 70°C. | Select DS3151N for base stations, remote cabinets, or any uncontrolled-temperature environment. |
| MAX3151 | Legacy pin-compatible replacement from same manufacturer; lacks JTAG, reduced jitter attenuation specs, no STS-1 support. | Suitable only for DS3/E3-only legacy upgrades with minimal firmware changes. | Choose MAX3151 only if backward compatibility with older designs is mandatory and STS-1 capability is unused. |
Compared with DS3151, DS3151N offers identical electrical and functional behavior with guaranteed operation over industrial temperature - making it a drop-in upgrade for harsh environments, while MAX3151 provides limited feature parity but requires validation of jitter and STS-1 path removal.
Availability
DS3151 is available at Aetrix Electronics and suitable for SONET/SDH multiplexers, digital cross-connect systems, and ATM edge routers requiring stable component supply across long product lifecycles and volume production ramps.
Supply support for DS3151 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated, now part of Analog Devices, designs high-performance analog and mixed-signal ICs for communications, computing, and industrial applications.
The DS3151 belongs to the DS315x family of telecom LIUs engineered specifically for DS3/E3/STS-1 physical-layer interfacing in carrier-grade transport and access equipment.
FAQ
What standards does the DS3151 comply with?
The DS3151 complies with ANSI T1.102, T1.107, T1.231, and T1.404; ITU-T G.703, G.751, G.775, G.823, and G.824; ETSI ETS 300 686/687/EN 300 689; and Telcordia GR-253-CORE and GR-499-CORE. These ensure interoperability in global DS3/E3/STS-1 infrastructure, including loss-of-signal detection, AIS generation, and jitter/wander control per carrier requirements.
How is the DS3151 configured - hardware pins or software registers?
The DS3151 supports two configuration modes: hardware mode (HW pin high) uses dedicated input pins for setup and status reporting, while CPU bus mode (HW pin low) repurposes those pins as an 8-bit address/data/control interface to access internal registers. Both modes support identical functions - e.g., RLOS detection and TTS control - but differ in implementation method and debug accessibility.
Does the DS3151 support both DS3 and STS-1 simultaneously?
No - the DS3151 operates in one line-rate mode at a time, selected by asserting either T3MCLK (DS3), E3MCLK (E3), or STMCLK (STS-1). Each mode configures internal PLLs, equalizer settings, and waveform templates accordingly; simultaneous multi-rate operation is not supported on a single DS3151 device.
What is the purpose of the RMONn pin on the DS3151?
The RMONn pin on the DS3151 enables the internal preamplifier for monitoring resistively attenuated signals - such as those tapped from DSX-1 monitor jacks. When RMONn = 1, the receiver preamp provides flat gain before the AGC/equalizer stage, preserving signal integrity for accurate LOS and code-violation detection during maintenance or diagnostics.
Can the DS3151 perform line-code violation detection in real time?
Yes - the DS3151 detects B3ZS or HDB3 line-code violations in real time using dedicated circuitry. Violations appear on the RNEGn/RLCVn pin (active-high pulse) and increment an internal counter accessible via CPU bus mode. This enables automated fault logging and rapid identification of upstream transmission impairments without external analysis tools.
DS3151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 144-BGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Line Interface Unit (LIU)
- Interface:
- LIU
- Number of Circuits:
- 1
- Voltage - Supply:
- 3.135V ~ 3.465V
- Current - Supply:
- 75mA
- Power (Watts):
- -
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-TECSBGA (13x13)
DS3151 FAQ
1.How can I place an order for DS3151 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS3151 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS3151 reliable?
The price and inventory of DS3151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS3151 is usually 5 days.
3.What payment methods are accepted for DS3151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS3151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS3151?
DS3151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS3151 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS3151?
For technical support, including DS3151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS3151 requirements.
6.How does Aetrix verify that DS3151 is sourced from the original manufacturer or authorized distributors?
All DS3151 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS3151 meets industry standards.
7.What is the process for return or replacement of DS3151?
All DS3151 units undergo pre-shipment inspection (PSI). If there is an issue with DS3151, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS3151 part is unused and in its original packaging.
Return procedure for DS3151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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