User’s Manual
PI945GSE-270
User’s Manual
31
9. Audio Amplifier connectors (4-pin JAMP1)
An amplifier connector is an electronic amplifier that amplifies low-power audio signals
(signals composed primarily of frequencies between 20 hertz to 20,000 hertz, the human
range of hearing) to a level suitable for driving loudspeakers and is the final stage in a
typical audio playback chain.
10. SPI Connector (7-pin SPI_JP1)
It is a point-to-point interface standard, allows network equipment designers to develop an
array of next-generation multi-service switches and routers to support multi-service traffic
with aggregate bandwidths up to OC-192 (10 Gb/s) and beyond, enabling them to
dramatically increase system performance.