AMY-5M
-
Hardware
Integration
Manual
Objective
Specification
Component
Selection
GPS.G5-MS5-08207
u-blox
proprietary
Page 50
B Component Selection
This
section
provides
information
about
components
that
are
critical
for
the
performance
of
the
AMY-5
GPS
receiver
module.
Temperature
range
specifications
need
only
be
as
wide
as
required
by
a
particular
application.
For
the
purpose
of
this
document,
specifications
for
industrial
temperature
range
(-40
°C
…
+85
°C)
are
provided.
B.1 RTC Crystal (Y2)
ID Parameter
Value
1 Frequency
Specifications
1.1
Oscillation
mode
Fundamental
Mode
1.2
Nominal
frequency
at
25
ºC
32.768
kHz
1.3
Frequency
calibration
tolerance
at
25
ºC
<
±100
ppm
2 Electrical
Specifications
2.1
Load
capacitance
C
L
9
pF
2.2
Equivalent
series
resistance
R
S
50
k
Ω
Table 9: RTC Crystal specifications
Manufacturer Order
No.
Micro
Crystal
CC7V-T1A
32.768
kHz
9.0
pF
+/-
100
ppm
Table 10: Recommend parts list for RTC Crystal Y2
B.2 I2C Serial EEPROM Memory
Manufacturer Order
No.
ST
M24C32-R
Atmel
AT24C32C
Microchip
24AA32A
Catalyst
CAT24C32
Samsung
S524AB0X91
Table 11: Recommend parts list for I2C Serial EEPROM memory
B.3 USB Line Protection (D2)
Manufacturer Order
No.
ST
Microelectronics
USBLC6-2
Table 12: Recommend parts list for USB line protection