Texas Instruments TLK4015AIZPV
- Part No.:
- TLK4015AIZPV
- Manufacturer:
- Texas Instruments
- Category:
- Telecom
- Package:
- -
- Datasheet:
-
TLK4015AIZPV.pdf
- Description:
- TELECOM CIRCUIT, 1-FUNC, PBGA289
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Inventory:2,372
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Product details
Overview
TLK4015AIZPV from Texas Instruments is a quad-channel multigigabit serializer/deserializer IC designed for ultrahigh-speed bidirectional point-to-point data transmission. It operates at 0.6–1.5 Gbps per channel, supports 8b/10b encoding/decoding, features on-chip PLL clock synthesis from 30–75 MHz reference clocks, and delivers up to 1.2 Gbps effective payload per channel in industrial-temperature (–40°C to 85°C) environments-ideal for high-speed backplane interconnects.
For engineers reviewing the TLK4015AIZPV datasheet, TLK4015AIZPV pinout, TLK4015AIZPV application, or TLK4015AIZPV equivalent, this page provides verified technical context, validated pin functions, confirmed industrial-temperature operation, real-world latency specs (34–38 bit-times transmit, 76–107 bit-times receive), and precise 289-ball PBGA package mapping-enabling accurate signal integrity planning, hot-plug system design, and serial link layer integration.
Technical Context
The TLK4015AIZPV implements four independent transceiver channels with fully autonomous parallel-to-serial and serial-to-parallel conversion. Each channel uses dual 8b/10b encoders/decoders, interpolator-based clock recovery, and CML differential I/O with 200 mV minimum receiver input threshold.
It integrates programmable voltage-swing output drivers, loss-of-signal detection, internal loopback (LOOPENx), PRBS test generation (2⁷−1), and lock-to-reference (LCKREFNx) mode for redundant port implementation-enabling robust link training, deterministic latency control, and failover-ready system architectures without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 0.6–1.5 Gbps per channel: defines usable bandwidth for backplane/copper/fiber links with BER <10⁻¹² under controlled-impedance 50 Ω media. |
| Reference Clock | 30–75 MHz GTx_CLK: determines 16-bit parallel word rate; serial output runs at 20× this frequency (600–1500 MHz). |
| Encoding | 8b/10b (Fibre Channel/GigE-compliant): ensures DC balance, transition density, and comma-based word alignment for reliable clock recovery. |
| Latency | Transmit: 34–38 bit-times; Receive: 76–107 bit-times: fixed pipeline delays critical for deterministic real-time link synchronization. |
| Power Supply | 2.5 V core (VDD, VDDAA–AD); 3 V I/O compatible: enables low-power operation (~1 W typical) while interfacing with standard TTL logic. |
| Temperature Range | –40°C to +85°C: qualified for industrial embedded systems including telecom line cards and ruggedized data acquisition. |
| Input Threshold | 200 mV min differential: sets minimum signal amplitude required for stable clock lock and loss-of-signal assertion. |
Pinout & Package
TLK4015AIZPV is housed in a 19×19-mm, 289-ball plastic ball grid array (PBGA) package with 1.27-mm pitch. Ball assignments follow TI's standardized layout for quad-channel SerDes devices, with dedicated analog/digital power and ground planes, channel-isolated I/O banks, and internal 10 kΩ pullup/pulldown resistors on control pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DINRxP/DINRxN (x=A–D) | Differential serial receive input | Accepts 0.6–1.5 Gbps encoded NRZ data; 200 mV min differential swing required for LOS immunity. |
| DOUTTxP/DOUTTxN (x=A–D) | Differential serial transmit output | Drives CML outputs at 20× GTx_CLK; high-impedance on power-up and during LOOPENx activation. |
| GTx_CLK (x=A–D) | Transmitter reference clock input | 30–75 MHz single-ended TTL clock; latches 16-bit TDx[0–15] on rising edge for serialization. |
| Rx_CLK (x=A–D) | Recovered parallel word clock output | Divided-by-20 version of recovered bit clock; synchronizes RDx[0–15] output on rising edge. |
| Rx_DV/LOSx (x=A–D) | Receive data valid / loss-of-signal indicator | Asserted high during valid frame reception; also asserted high during LOS condition (differential <200 mV). |
| LCKREFNx (x=A–D) | Lock-to-reference control input | Pullup-enabled; when low, disables receiver tracking and places RDx/Rx_CLK/Rx_ER in high-Z for transmit-only redundancy. |
Key Features
| Feature | Design Value |
|---|---|
| Hot-plug capable architecture | On-chip power-on reset holds Rx_CLK low and all I/O in high-Z until supply stabilization-prevents bus contention during live insertion. |
| Independent channel operation | Four fully isolated SerDes lanes support mixed-rate links (e.g., A/B at 1.25 Gbps, C/D at 0.625 Gbps) without cross-talk or shared PLL jitter coupling. |
| Programmable output voltage swing | Adjustable via RREFx external resistor network-optimizes signal integrity across varying trace lengths and connector losses. |
| Integrated PRBS generator (2⁷−1) | Enables in-system BER testing without external BERT; PRBS_PASSx output confirms error-free link performance at full data rate. |
| Loss-of-signal (LOS) detection | Dedicated circuit asserts Rx_DV/LOSx high when differential input falls below 200 mV-provides immediate cable disconnect or transmitter failure indication. |
Applications
| Backplane Interconnect | Optical Module Interface |
|---|---|
|
Use Scenario: High-density telecom line card connecting ASICs over FR4 PCB backplanes with 50 Ω controlled impedance traces up to 40 cm. IC Role / Device Role / Timing Role: Serializer/deserializer bridging parallel bus domains to reduce pin count and EMI; provides embedded clock recovery eliminating separate timing circuits. Use Value: Enables 4.8 Gbps aggregate throughput (4 × 1.2 Gbps) with deterministic latency and 8b/10b framing-replacing 96+ parallel traces with 8 differential pairs. |
Use Scenario: Interface between FPGA-based packet processor and SFP+ optical transceiver module in enterprise switch fabric. IC Role / Device Role / Timing Role: Physical layer translator converting FPGA's 16-bit parallel interface to 1.25 Gbps serial optical lane; handles 8b/10b encoding transparently. Use Value: Eliminates need for external encoder/decoder ICs; supports hot-plug detection and LOS signaling directly to host controller via Rx_DV/LOSx. |
| Copper Cable Link | Redundant Port Architecture |
|
Use Scenario: Point-to-point 10-meter twinax copper cable link between server and storage controller in data center rack. IC Role / Device Role / Timing Role: High-speed transceiver managing jitter-tolerant serial transport; uses on-chip PLL to synthesize bit clock from low-frequency reference. Use Value: Achieves sub-10⁻¹² BER at 1.5 Gbps over passive copper; programmable output swing compensates for cable attenuation without redesign. |
Use Scenario: Dual-homed network interface card with automatic failover between primary and backup SerDes paths. IC Role / Device Role / Timing Role: One TLK4015AIZPV in active receive mode, second in LCKREFNx-driven transmit-only mode-enabling seamless switchover. Use Value: RDx[0–15] buses wired in parallel; LCKREFNx assertion places standby device in high-Z-no external mux or glue logic required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multigigabit SerDes applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLK4015IGPV | Same die, rated for 40°C to 85°C ambient (not –40°C); identical electrical specs and pinout. | Restricted to commercial/industrial indoor environments without extended cold startup requirements. | Select TLK4015IGPV only if operating temperature never drops below 40°C-avoids over-spec'ing for thermal margin. |
| TLK2201BIRCP | Single-channel, 1.0–2.5 Gbps, 100-pin HTQFP; no integrated 8b/10b encoder; requires external clock multiplier. | Suitable for lower-density designs where channel count and embedded encoding are not mandatory. | Choose TLK2201BIRCP when scaling down to one lane or when using custom encoding schemes-saves board area but increases system complexity. |
Compared with TLK4015IGPV, TLK4015AIZPV adds guaranteed –40°C startup and operation; compared with TLK2201BIRCP, it delivers four integrated lanes with full 8b/10b and clock synthesis-reducing BOM count and layout risk in high-throughput backplane systems.
Availability
TLK4015AIZPV is available at Aetrix Electronics and suitable for high-speed backplane interconnect, optical module interface, copper cable link, and redundant port architecture applications requiring stable component supply across extended industrial temperature ranges.
Supply support for TLK4015AIZPV 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in high-speed interface ICs.
The TLK4015AIZPV belongs to TI's multigigabit SerDes product line, engineered specifically for deterministic, low-latency, hot-plug-capable serial links in telecom infrastructure, industrial networking, and data center equipment.
FAQ
What is the guaranteed operating temperature range for TLK4015AIZPV?
The TLK4015AIZPV is characterized and guaranteed to operate from –40°C to +85°C ambient temperature. This industrial-grade rating is confirmed in the official TI datasheet SLLS541B and applies to all electrical specifications-including data rate, latency, and receiver threshold-across the full range without derating.
Does TLK4015AIZPV support true pin-to-pin compatibility with other TLK4015 variants?
Yes-TLK4015AIZPV shares identical pinout, ball map, and electrical behavior with TLK4015IGPV and TLK4015IZPV. All three use the same 289-ball PBGA package and have functionally equivalent I/O assignments, enabling direct substitution where temperature grade permits.
How does the 8b/10b encoding in TLK4015AIZPV impact effective data throughput?
The TLK4015AIZPV encodes every 8 bits into 10 bits, resulting in 20% overhead. With a 1.5 Gbps serial rate, the maximum effective payload is 1.2 Gbps per channel (16 bits × 75 MHz GTx_CLK). This is explicitly stated in the datasheet as "up to 1.2 Gbps of data bandwidth per channel."
What is the purpose of the LCKREFNx pins on TLK4015AIZPV?
LCKREFNx (x = A–D) pins place the corresponding receiver channel in lock-to-reference mode: when pulled low, Rx_CLK is synchronized to GTx_CLK instead of the incoming data stream, and RDx[0–15], Rx_CLK, and Rx_ER enter high-impedance-enabling transmit-only operation for redundant port architectures.
Can TLK4015AIZPV be used without an external reference resistor?
No-TLK4015AIZPV requires external 1% tolerance resistors connected between each RREFx pin (A5, E17, N17, U5) and its respective VDDAx supply. These set transmitter output current and voltage swing; omission causes undefined or noncompliant differential output levels per datasheet Section 7.
TLK4015AIZPV Specifications
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TLK4015AIZPV FAQ
1.How can I place an order for TLK4015AIZPV through Aetrix?
Please submit a Request for Quotation (RFQ) for TLK4015AIZPV 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 TLK4015AIZPV reliable?
The price and inventory of TLK4015AIZPV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLK4015AIZPV is usually 5 days.
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TLK4015AIZPV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLK4015AIZPV 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 TLK4015AIZPV?
For technical support, including TLK4015AIZPV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLK4015AIZPV requirements.
6.How does Aetrix verify that TLK4015AIZPV is sourced from the original manufacturer or authorized distributors?
All TLK4015AIZPV 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 TLK4015AIZPV meets industry standards.
7.What is the process for return or replacement of TLK4015AIZPV?
All TLK4015AIZPV units undergo pre-shipment inspection (PSI). If there is an issue with TLK4015AIZPV, 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 TLK4015AIZPV part is unused and in its original packaging.
Return procedure for TLK4015AIZPV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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