Specifications

WA_DEV_FEX20_PTS_004 Rev 001 June 30, 2010 34
Expansion Card Product Technical
Specification
Signals and Indicators
5.4. GSM-2V8 and GSM-1V8 Output
These outputs must be used as reference or as a pull-up resistor supplies only. The voltage supplies
are available when the Fastrack Xtend is ON.
5.4.1. Pin Description
Refer to the following table for the pin description of the GSM-2V8 and GSM-1V8 output.
Table 28: GSM-2V8 and GSM-1V8 Output Pin Description
Pin Number
Signal
I/O
I/O Type
Description
11
GSM-2V8
O
Supply
Digital supply
10
GSM-1V8
O
Supply
Digital supply
5.4.2. Electrical Characteristics
Refer to the following table for the electrical characteristics of the GSM-2V8 and GSM-1V8 output.
Table 29: Electrical Characteristics of GSM-2V8 and GSM-1V8 Output
Parameter
Minimum
Typical
Maximum
Unit
GSM-2V8
Output voltage
2.74
2.8
2.86
V
Output current
15
mA
GSM-1V8
Output voltage
1.76
1.8
1.94
V
Output current
15
mA
5.5. Analog to Digital Converter
One Analog to Digital Converter input is available from the Expansion Card. The converter is a 10-bit
resolution ADC ranging from 0 to 2V.
5.5.1. Pin Description
Refer to the following table for the pin description of the analog to digital converter.
Table 30: Analog to Digital Pin Description
Pin Number
Signal
I/O
I/O Type
Description
14
AUX-ADC
I
Analog
A/D converter
5.5.2. Electrical Characteristics
Refer to the following table for the electrical characteristics of the analog to digital converter.