Overview
The TLK1221RHAR, produced by Texas Instruments, is a Gigabit Ethernet transceiver designed for high-speed full-duplex point-to-point data transmissions. This device is part of the TLK1221 family and is housed in a 40-pin QFN (Quad Flat No-Lead) package. It operates within the IEEE 802.3 Gigabit Ethernet specification and supports data rates from 0.6 Gbps to 1.3 Gbps. The TLK1221RHAR is optimized for 10-bit interface (TBI) mode and is suitable for applications such as Optical Line Terminals (OLT) and Optical Network Units (ONU) in EPON/GEPON systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | 0.6 to 1.3 | Gbps |
| Supply Voltage | 2.5 | V |
| Power Consumption (typical at 1.25 Gbps) | 250 | mW |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | 40-pin QFN (6-mm × 6-mm) | |
| Input/Output Compatibility | LVPECL-compatible differential I/O, 3.3-V tolerant on LVTTL inputs | |
| ESD Protection | CDM: 1 kV, HBM: 2 kV |
Key Features
- Serializer/Deserializer supporting 0.6 to 1.3 Gbps data rates
- Low power consumption of 250 mW (typical) at 1.25 Gbps
- LVPECL-compatible differential I/O on high-speed interface
- Single monolithic PLL design
- Support for 10-bit interface (TBI) with 8b/10b encoding
- Fast relock times less than 256 ns (typical)
- No external filter capacitors required
- Comprehensive suite of built-in testability including loopback and PRBS generation/verification
- Hot plug protection
- Industrial temperature range from -40°C to 85°C
- IEEE 802.3 Gigabit Ethernet compliant
Applications
- Optical Line Terminals (OLT) and Optical Network Units (ONU) in EPON/GEPON systems
- Point-to-point baseband data transmission over controlled-impedance media (e.g., printed-circuit board traces, copper cables, fiber-optical media)
- Gigabit Ethernet networks requiring high-speed data transmission
Q & A
- What is the typical data rate of the TLK1221RHAR?
The TLK1221RHAR operates at a typical data rate of 1.25 Gbps, supporting data rates from 0.6 Gbps to 1.3 Gbps.
- What is the power consumption of the TLK1221RHAR at 1.25 Gbps?
The power consumption is typically 250 mW at 1.25 Gbps.
- What is the operating temperature range of the TLK1221RHAR?
The device operates within a temperature range of -40°C to 85°C.
- What type of package does the TLK1221RHAR use?
The TLK1221RHAR is housed in a 40-pin QFN (Quad Flat No-Lead) package.
- Is the TLK1221RHAR compatible with IEEE 802.3 Gigabit Ethernet standards?
Yes, the TLK1221RHAR is IEEE 802.3 Gigabit Ethernet compliant.
- What are the key features of the TLK1221RHAR's testability?
The device includes a comprehensive suite of built-in testability features such as loopback, PRBS generation, and verification.
- Does the TLK1221RHAR require external filter capacitors?
No, the TLK1221RHAR does not require external filter capacitors.
- What is the ESD protection level of the TLK1221RHAR?
The device has an ESD protection level of CDM: 1 kV, HBM: 2 kV.
- Is the TLK1221RHAR hot plug capable?
Yes, the TLK1221RHAR is designed to be hot plug capable.
- What are the primary applications of the TLK1221RHAR?
The primary applications include OLT and ONU systems in EPON/GEPON networks and point-to-point baseband data transmission over various media.
