
DSB75 Development Support Board Rev. B1 Hardware Description
Strictly confidential / Released
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DSB75_hd_v08 Page 13 of 94 29.09.2005
Abbreviation Description
Li-Ion Lithium-Ion
MMC Multi Media Card
NTC Negative Temperature Coefficient
PCB Printed Circuit Board
PCM Pulse Code Modulation
PSU Power Supply Unit
PTT Push-To-Talk
PWM Pulse Width Modulation
RF Radio Frequency
ROM Read-only Memory
RTC Real Time Clock
RTS Request to Send
Rx Receive Direction
SAR Specific Absorption Rate
SCLK Serial Clock
SD Secure Digital
SELV Safety Extra Low Voltage
SIM Subscriber Identification Module
SMA RF connector system: SubMiniature version A
SPI Serial Peripheral Interface
Tx Transmit Direction
USB Universal Serial Bus
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