AC530 Fastrax, AC530 Datasheet - Page 13

• Manufacturer Part Number: AC530
• Description: GPS Development Tools Application Board for UC530
• Manufacturer: Fastrax

Specifications of AC530

• Rohs: yes
• Product: Application Boards
• Tool Is For Evaluation Of: UC530
• Frequency: 1.575 GHz
• Operating Supply Voltage: 3.3 V
• Interface Type: UART
• Description/function: Fastrax Application Board AC530 provides the UC530 connectivity to the Fastrax Evaluation Kit or to other evaluation purposes
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Current: 25 mA

Page 13 of 39
4 Connectivity
4.1
The I/O signals are available as soldering (castellated) pads on the bottom side of the module. These pads are also
used to attach the module on the motherboard. All digital I/O signal levels are 2.8V CMOS compatible (except
TIMER and 32K/DR_INT that are 1.2V CMOS) and inputs are 3.6V tolerable. All unconnected I/O signals can be left
unconnected when not used, unless instructed to use external pull up/down resistor.
Contact
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2012-05-03
UC530_Datasheet
Signal Assignments
Signal
32K/DR_INT
UI_FIX
TX1
GND
GND
RX1
EINT1
VDD_B
VDD
GND
GND
GND
GND
GND
GND
ANT
RF_IN
GND
GND
GPIO9
GND
GND
RESET_N
GPIO10
I/O
Full
Power,
Stanby
C1V2,B
C,B
C,B
G
G
C,B
C,B
P,I
P,I
G
G
G
G
G
G
A,O
A,I
G
G
C,B
G
G
C,I,PU
C,B
type
I/O type
Backup
C1V2,B
HZ
HZ
G
G
HZ
HZ
P,I
-
G
G
G
G
G
G
-
-
G
G
HZ
G
G
C,I,PU
HZ
Table 2 Signal assignment
I/O
Reset
C1V2,B
C,B
C,B
G
G
C,B
C,B
P,I
P,I
G
G
G
G
G
G
-
-
G
G
C,B
G
G
C,I,PU
C,B
type
Signal description
- Wake up interrupt (DR_INT default), PD. Can be
left unconnected when not used.
- Optionally 32678 Hz RTC clock output
- Fix indicator output (default). Can be left
unconnected when not used.
- GPIO6
UART Port1 TX data transmit. Can be left
unconnected when not used.
Ground
Ground
UART Port1 RX data receive (RTCM), PU. Can be
left unconnected when not used.
- Standby Mode control input (not supported).
Can be left unconnected when not used.
- GPIO13
Backup power input +3.3 V nom. De-couple
externally with e.g. 1 uF low ESR ceramic
capacitor.
Power supply input +3.3 V nom. De-couple
externally with e.g. 4.7 uF low ESR ceramic
capacitor.
Ground
Ground
Ground
Ground
Ground
Ground
Embedded Antenna Output (50 ohm)
Antenna Signal Input (50 ohm)
Ground
Ground
Reserved for future usage, leave floating.
Ground
Ground
External reset input, active low. Can be left
unconnected when not used.
Reserved for future usage, leave floating.