Product Summary
The PDI1394P25BD is a 1-port 400 Mbps physical layer interface. The PDI1394P25BD provides the digital and analog transceiver functions needed to implement a one port node in a cable-based IEEE 1394–1995 and/or 1394a network. Each cable port incorporates two differential line transceivers. The transceivers include circuitry to monitor the line conditions as needed for determining connection status, for initialization and arbitration, and for packet reception and transmission. The PDI1394P25BD is designed to interface with a Link Layer Controller (LLC), such as the PDI1394L40 or PDI1394L41.
Parametrics
PDI1394P25BD absolute maximum ratings: (1)DC supply voltage: –0.5 to 4.0 V; (2)DC input voltage: –0.5 to VDD+0.5 V; (3)5 volt tolerant input voltage range: –0.5 to 5.5 V; (4)DC output voltage range at any output: –0.5 to VDD+0.5 V; (5)Electrostatic discharge Human Body Model: 2 kV; (6)Electrostatic discharge Machine Model: 200 V; (7)Operating free-air temperature range: 0 to +70 °C; (8)Storage temperature range: –65 to +150 °C.
Features
PDI1394P25BD features: (1)Fully compliant with Open HCI requirements; (2)Cable ports monitor line conditions for active connection to remote node.; (3)Logic performs system initialization and arbitration functions; (4)Encode and decode functions included for data-strobe bit level encoding; (5)Incoming data resynchronized to local clock; (6)Single 3.3 volt supply operation; (7)Minimum VDD of 2.7 V for end-of-wire power-consuming devices; (8)Interface to link-layer controller supports both low-cost bus-holder isolation and optional Annex J electrical isolation; (9)Data interface to link-layer controller through 2/4/8 parallel lines at 49.152 MHz.
Diagrams

| Image | Part No | Mfg | Description | ![]() |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
![]() |
![]() PDI1394P25BD |
![]() NXP Semiconductors |
![]() I/O Controller Interface IC 1394 1 PORT 400 MB/S PHY |
![]() Data Sheet |
![]() Negotiable |
|
||||
![]() |
![]() PDI1394P25BD-S |
![]() |
![]() IC IEEE 1394 LINK CTRLR 64LQFP |
![]() Data Sheet |
![]() Negotiable |
|
||||
![]() |
![]() PDI1394P25BD-T |
![]() |
![]() IC IEEE 1394 LINK CTRLR 64LQFP |
![]() Data Sheet |
![]() Negotiable |
|
||||
(China (Mainland))










