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Hardware

Víðarr Óðinsson edited this page Sep 5, 2020 · 2 revisions

Overview

The official technical specification can be found here. What follows below is a summary of the aforementioned enriched with some tidbits from all over the place.

Logic core and generic peripherals

Navigation

  • 12-channel GPS receiver based on SiRFstarIV processor (perhaps SiRFatlasIV is meant?)
    • Nominal cold start under 40 seconds

Audio/Radio

  • Radio with 3 tuners phase diversity build around DIRANA2 DSP and LeafDice analog tuners
  • RDS and TMC decoding
  • Audio Power amplifier (type AB class) with 4 channel outputs (16 W RMS at 1 % THD, 13.5 V 4 Ω LS)
  • External HiFi amplifier compatibility: Analog (booster) x4 outputs or digital (driven through CAN commands) x2 outputs
  • External Mono CD reader audio stereo inputs with half-differential signals on three lines
  • Auxiliary audio stereo inputs with half-differential signals on three lines
  • Microphone analog mono inputs

Video out

  • 1 pair LVDS output interface TFT 7 inch 800x480 display (60 Hz)
  • Second 1 pair of LVDS output interface (copy of the first) in option D1 and D2
  • DGT display compatibility with CAN High Speed communication
    • for touch screen feedback
    • DGT luminosity commands

Others

  • USB 2.0 socket (1 customer USB port). USB power supply with minimum guarantee supply current of 1 A at 4.75 V
  • Second USB 2.0 socket (only with option B1, B2, D1, D2, H1 and H2). USB power with minimum guarantee supply current of 1 A at 4.75 V
  • Embedded Apple authentication chip
    Used to talk to i-devices from Apple
  • Bluetooth 1.1 connectivity based on Infineon module PBA31308
    • with internal printed antenna (available BOM option for external antenna compatibility)
    • HFP and A2DP profiles
  • Principal node on the vehicle comfort CAN Low Speed bus
    NB: this is an important information as it tells us that the SMEG+ unit drives the comfort CAN Low Speed bus
  • Internal cooling through FAN managed by temperature sensor
  • Standby current less than 1 mA worst case at 12 V

Mechanics