Overview
The TLK1221RHATG4 is a Gigabit Ethernet transceiver produced by Texas Instruments. This device is designed for high-speed full-duplex point-to-point data transmissions, supporting data rates from 0.6 Gbps to 1.3 Gbps. It operates at a typical rate of 1.25 Gbps, providing up to 1 Gbps of data bandwidth over copper or optical media interfaces. The TLK1221RHATG4 is compliant with the IEEE 802.3 Gigabit Ethernet specification and is particularly suited for applications such as EPON/GEPON systems, including OLT and ONU systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | 0.6 to 1.3 | Gbps |
| Typical Operating Rate | 1.25 | Gbps |
| Power Consumption | 250 | mW (typ) at 1.25 Gbps |
| Supply Voltage | 2.5 | V |
| LVTTL Input Tolerance | 3.3 | V |
| Operating Temperature Range | –40 to 85 | °C |
| Package Type | 40-pin QFN PowerPAD™ | |
| ESD Protection | CDM: 1 kV, HBM: 2 kV |
Key Features
- Low power consumption: 250 mW (typ) at 1.25 Gbps
- LVPECL-compatible differential I/O on high-speed interface
- Single monolithic PLL design
- Support for 10-bit interface (TBI)
- Fast relock times: less than 256 ns (typ)
- No external filter capacitors required
- Comprehensive suite of built-in testability, including loopback and PRBS generation and verification
- Hot plug protection
- Industrial temperature range: –40°C to 85°C
- IEEE 802.3 Gigabit Ethernet compliant
Applications
The TLK1221RHATG4 is primarily used in applications requiring high-speed data transmission over controlled-impedance media, such as:
- EPON/GEPON systems (OLT and ONU)
- Point-to-point baseband data transmission over printed-circuit board traces, copper cables, or fiber-optical media
Q & A
- What is the typical operating data rate of the TLK1221RHATG4?
The typical operating data rate is 1.25 Gbps.
- What is the power consumption of the TLK1221RHATG4 at 1.25 Gbps?
The power consumption is 250 mW (typ) at 1.25 Gbps.
- What is the supply voltage for the TLK1221RHATG4?
The supply voltage is 2.5 V.
- Is the TLK1221RHATG4 compatible with 3.3 V LVTTL inputs?
- What is the operating temperature range of the TLK1221RHATG4?
The operating temperature range is –40°C to 85°C.
- What type of package does the TLK1221RHATG4 use?
The device is housed in a 40-pin QFN PowerPAD™ package.
- Does the TLK1221RHATG4 require external filter capacitors?
No, external filter capacitors are not required.
- What built-in test capabilities does the TLK1221RHATG4 offer?
The device offers loopback, PRBS generation and verification, and other comprehensive built-in testability features.
- Is the TLK1221RHATG4 hot-plug capable?
- What are some common applications for the TLK1221RHATG4?
