This product is a IEEE 1394a-2000 fully compliant controller that supports 100/200/400 megabits per second of transmission speed.
The TSB41AB1 provides the digital and analog transceiver functions needed to implement a one‑port node in an IEEE 1394 network. It includes circuitry for line monitoring, arbitration, packet reception and transmission, and supports optional isolation barriers. The device operates with a 24.576 MHz external crystal and generates a 49.152 MHz system clock for synchronization with the linked‑layer controller.
The datasheet includes pin‑out diagrams for PAP, GQE, ZQE and other package options, describes power‑down and suspend/resume behavior, and lists electrical specifications such as bias voltage, data rates, and external resistor values. A land‑pattern guide and important warranty notice are also provided.
| Supported data rates | 98.304, 196.608, 393.216 Mbits/s |
|---|---|
| System clock frequency | 49.152 MHz |
| External crystal requirement | 24.576 MHz |
| TPBIAS nominal voltage | 1.86 V |
| Power‑down energy reduction | up to 210 % |
It supports three data rates: 98.304 Mbits/s, 196.608 Mbits/s, and 393.216 Mbits/s.
The device provides a nominal 1.86‑V bias voltage at the TPBIAS terminal.
A 24.576 MHz external crystal is required as the reference clock.
The power‑down function disables the PLL and most internal circuits, reducing energy use by up to 210 %.