Enabler II-G Assiste GPS Integration Guide - Farnell

Enfora Enabler III-G
Modem Integration Guide
6.6.4. Level Translation Reference Power (Pin 77)
To be used as a voltage reference source ONLY. Do not connect current loads to this pin. This pin
must be decoupled to ground with at least a 0.1 μF capacitor at the output. Noise induced on this pin
will affect the performance of the baseband.
V I/O
R Parameter/Conditions Min Typ Max Units
Output voltage VOUT
Rated output current I
OUT
ON mode
LOW POWER mode
ON mode
LOW POWER mode
6.6.5. USB (Pins 1, 3, 5, 7, 9)
Pin Name Pin Signal Description
Number Direction
USB_VBUS 1, 3 In 5 V tolerant power Supply VBUS line;
Used only as a USB sense, not for powering the
module. (optional connection)
USB_DP/RXD/MIC_R 5 Analog 5 V tolerant data plus pin in USB modes /
I/O Receive function in UART mode /
Microphone or right speaker in AUDIO mode
USB_DM 7 Analog 5 V tolerant data minus pin in USB modes /
I/O Transmit function in UART mode /
Monaural speaker or left speaker in AUDIO mode
ID_USB 9 Analog 5 V tolerant ID line, it defines the type of device
I/O connected to the phone’s USB port;
And also the default state (host / device) at the
cable connection;
The transceiver senses the voltage of this pin to
determine if the pin is either floating
(typical),grounded or resistively connected to
ground (102 kΩ, 200 kΩ, 440 kΩ);
1.65
1.65
The universal serial bus (USB) device controller supports the implementation of a full-speed (FS) device
compatible with the Universal Serial Bus Specification Revision 2.0 and the Universal Serial Bus
Specification Revision 1.1.
The module includes a Universal Serial Bus (USB) transceiver with a car-kit detection, able to support
USB 12 Mb/s Full-Speed (FS) and USB 1.5 Mb/s Low-Speed (LS). When a USB cable is plugged into
the USB receptacle, the transceiver detects the cable’s presence on VBUS (> 1.8 V) and ID (≠ float) pins,
even if the module is switched off. The transceiver is fully operational only in phone’s Active mode.
The modules device’s car kit is developed based on CEA-936-A rev.39 – Nov. 24th 2004 specification.
Currently the device does not support other versions of this specification. Compared to the CEA-936-A
rev.39 – Nov. 24th 2004 specification, the car-kit implementation in the module device does not support
1.8
1.8
1.95
1.95
20
0.5
GSM0308PB001 41 Version 1.03– 7/17/2007
Vdc
mA