LISA-C2 series and FW75-C200 - System Integration Manual
UBX-13000620 - R21
Early Production Information
Appendix
Page 93 of 103
B
Migration from LISA-U to LISA-C200
Overview
The LISA-C200 module provides dual-band CDMA2000 1xRTT data and voice communication in the same
compact LISA SMT LCC form factor (22.4 x 33.2 mm) as the LISA-U series UMTS/HSPA and GSM/EGPRS/EDGE
modules, enabling straightforward development of products supporting either CDMA, W-CDMA or GSM/GPRS
cellular technology with the same application board.
u-blox offers the flexibility to easily migrate from LISA-U series application designs to LISA-C200 module
application designs in a straight forward procedure. This allows customers to take maximum advantage of their
hardware and software investments. In such a migration, there are some points to consider, as explained in this
section.
Checklist for migration
Have you chosen the optimal module version?
LISA-C200-03S: 1xRTT module, 800/1900 MHz, Sprint / Aeris custom features
LISA-C200-23S: 1xRTT module, 800/1900 MHz, Verizon / US Cellular custom features
Check LISA-C200 series hardware requirements
Check the application circuit of the
VCC
pins. A power supply circuit properly designed for LISA-U series
modules is compatible for LISA-C200 as long as the voltage is within the LISA-C200 specification, but
LISA-C200 doesn’t automatically switch on when applying
VCC
supply. It switches on if the
PWR_ON
input pin is permanently low when
VCC
is applied.
Check the application circuit of the pin 2. This pin is Reserved (
RSVD
) on LISA-C200 modules and
doesn’t provide supply for Real Time Clock (
V_BCKP
) as on LISA-U series modules.
Check the application circuit of pin 5. On LISA-C200 this
RSVD
pin may be connected to GND for
compatibility with LISA-U or leave NC if no compatibility is required.
Check the application circuit of the pins 9, 11 and 12. These pins are Reserved (
RSVD
) on LISA-C200
modules and do not provide
DSR
,
DCD
and
DTR
signals as LISA-U series modules do. Leave these pins
unconnected on LISA-C200 modules.
Check the application circuit of pins 55, 56, 57, 58, and 59. These pins are Reserved (
RSVD
) on LISA-
C200 modules and do not provide an SPI / IPC interface as LISA-U series modules do.
Check the application circuit of
USB_D+
,
USB_D-
pins: LISA-C200 provides one USB communication
device class over a full-speed USB 2.0 interface, whereas LISA-U series modules provide multiple USB
communication device classes over a high-speed USB 2.0 interface.
Check the application circuit of the
PWR_ON pin
: LISA-C200 provides an internal pull-up. An open
drain or open collector driver is recommended.
Check the application circuit of the
RESET_N
pin: LISA-C200 provides an internal pull-up. An open drain
or open collector driver is recommended.
Check the application circuit of pins 39, 40, 53, and 54. On LISA-C200, the Analog Audio input
(
MIC_N
,
MIC_P
) and output (
SPK_P
,
SPK_N)
are compatible with LISA-U120 and LISA-U130, but the
other LISA-U series modules don’t provide the same functionality.
Check the application circuit of pins 41, 42, 43, and 44. LISA-C200 provides an I2S interface that only
supports PCM digital audio format (
PCM_SYNC, PCM_DO, PCM_CLK, PCM_DI
). This is comparable
with the digital audio interface provided by LISA-U120, LISA-U130, LISA-U230 and LISA-U200.
