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DS21448
PCM Transceiver, 1-Func, PBGA144, 17 X 17 MM, 1.27 MM PITCH, PLASTIC, BGA-144
DS21448
PCM Transceiver, 1-Func, PBGA144, 17 X 17 MM, 1.27 MM PITCH, PLASTIC, BGA-144
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
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DS21448 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
GENERAL DESCRIPTIONThe DS21448 is a quad-port E1 or T1 line interface unit (LIU) for short-haul and long-haul applications. It incorporates four independent transmitters and four independent receivers in a single 144-pin PBGA or 128-pin LQFP package. The transmit drivers generate the necessary G.703 E1 waveshapes in 75Ω or 120Ω applications and the DSX-1 or CSU line build-outs of 0dB, -7.5dB, -15dB, and -22.5dB for T1 applications.FEATURES■ Four Complete E1, T1, or J1 LIUs■ Supports Long- and Short-Haul Trunks■ Internal Software-Selectable Receive-Side Termination for 75Ω/100Ω/120Ω■ 3.3V Power Supply■ 32-Bit or 128-Bit Crystal-Less Jitter Attenuator Requires Only a 2.048MHz Master Clock for E1 and T1, with the Option to Use 1.544MHz for T1■ Generates the Appropriate Line Build-Outs With and Without Return Loss for E1, and DSX-1 and CSU Line Build-Outs for T1■ AMI, HDB3, and B8ZS Encoding/Decoding■ 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Clock■ Programmable Monitor Mode for Receiver■ Loopbacks and PRBS Pattern Generation/ Detection with Output for Received Errors■ Generates/Detects In-Band Loop Codes, 1 to 16 Bits, Including CSU Loop Codes■ 8-Bit Parallel or Serial Interface with Optional Hardware Mode■ Muxed and Nonmuxed Parallel Bus Supports Intel or Motorola■ Detects/Generates Blue (AIS) Alarms■ NRZ/Bipolar Interface for Tx/Rx Data I/O■ Transmit Open-Circuit Detection■ Receive Carrier Loss (RCL) Indication (G.775)■ High-Z State for TTIP and TRING■ 50mARMS Transmit Current Limiter■ JTAG Boundary Scan Test Port per IEEE 1149.1■ Meets Latest E1 and T1 Specifications Including ANSI.403-1999, ANSI T1.408, AT&T TR 62411, ITU G.703, G.704, G.706, G.736, G.775, G.823, I.431, O.151, O.161, ETSI ETS 300 166, JTG.703, JTI.431, TBR12, TBR13, and CTR4APPLICATIONS Integrated Multiservice Access Platforms T1/E1 Cross-Connects, Multiplexers, and Channel Banks Central-Office Switches and PBX Interfaces T1/E1 LAN/WAN Routers Wireless Base Stations
Key Features
- Four Complete E1, T1, or J1 LIUs
- Supports Long- and Short-Haul Trunks
- Internal Software-Selectable Receive-Side Termination for 75Ω/100Ω/120Ω
- 3.3V Power Supply
- 32-Bit or 128-Bit Crystal-Less Jitter Attenuator Requires Only a 2.048MHz Master Clock for E1 and T1, with the Option to Use 1.544MHz for T1
- Generates the Appropriate Line Build-Outs With and Without Return Loss for E1, and DSX-1 and CSU Line Build-Outs for T1
- AMI, HDB3, and B8ZS Encoding/Decoding
- 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Clock
- Programmable Monitor Mode for Receiver
- Loopbacks and PRBS Pattern Generation/ Detection with Output for Received Errors
- Generates/Detects In-Band Loop Codes, 1 to 16 Bits, Including CSU Loop Codes
- 8-Bit Parallel or Serial Interface with Optional Hardware Mode
- Muxed and Nonmuxed Parallel Bus Supports Intel or Motorola
- Detects/Generates Blue (AIS) Alarms
- NRZ/Bipolar Interface for Tx/Rx Data I/O
- Transmit Open-Circuit Detection
- Receive Carrier Loss (RCL) Indication (G.775)
- High-Z State for TTIP and TRING
- 50mARMS Transmit Current Limiter
- JTAG Boundary Scan Test Port per IEEE 1149.1
- Meets Latest E1 and T1 Specifications Including ANSI.403-1999, ANSI T1.408, AT&T TR 62411, ITU G.703, G.704, G.706, G.736, G.775, G.823, I.431, O.151, O.161, ETSI ETS 300 166, JTG.703, JTI.431, TBR12, TBR13, and CTR4
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | No | Rohs Code | No |
| Part Life Cycle Code | Obsolete | Part Package Code | BGA |
| Pin Count ! | 144 | Reach Compliance Code | not_compliant |
| ECCN Code | EAR99 | HTS Code ! | 8542.39.00.01 |
| JESD-30 Code | S-PBGA-B144 | JESD-609 Code | e0 |
| Length | 17 mm | Moisture Sensitivity Level | 2 |
| Number of Functions | 1 | Number of Terminals | 144 |
| Operating Temperature-Max | 70 °C | Operating Temperature-Min | |
| Package Body Material | PLASTIC/EPOXY | Package Code | BGA |
| Package Equivalence Code | BGA144,12X12,50 | Package Shape | SQUARE |
| Package Style | GRID ARRAY | Power Supplies ! | 3.3 V |
| Qualification Status ! | Not Qualified | Seated Height-Max | 2.22 mm |
| Supply Current-Max | 0.4 mA | Supply Voltage-Nom | 3.3 V |
| Surface Mount ! | YES | Telecom IC Type | PCM TRANSCEIVER |
| Temperature Grade ! | COMMERCIAL | Terminal Finish | TIN LEAD |
| Terminal Form ! | BALL | Terminal Pitch ! | 1.27 mm |
| Terminal Position | BOTTOM | Width | 17 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
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