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Future
Communications
for Quad-Band GSM/GPRS/EDGE and HSPA/HSPA+/LTE
Integrated circuit Inc.
Highly Integrated RFIC for Multi-band & Multi-mode
FC7860
D
ESCRIPTION
FC7860 is a highly integrated RFIC that covers
multi-band and multi-mode HSPA/HSPA+/LTE along
with quad-band GSM/GPRS/EDGE. FC7860 is
MCP (multi-chip package) which includes
LTE/HSPA+/HSPA and GSM/EDGE with 7mm x
7mm small leadless BGA package. The companion
baseband modem chip is CMC221 which enables
several digital standards such as 2G/2.5G
(GSM/GPRS/EDGE), 3G (HSPA), and 3.9G
(HSPA+/LTE). FC7860 covers all the required
frequency bands that 2G/2.5G/3G/3.9G requires.
The HSPA/HSPA+/LTE chip full y supports 2x1 (2RX
1TX) receiver diversity for the increased data traffic.
HSPA/HSPA+/LTE die is a highly integrated chip
working with dual supply voltage such as 1.2V and
1.8V. The 4-wired serial-to-parallel interface (SPI)
enables operating in various modes.
HSPA/HSPA+/LTE die contains complete multiband receiver diversity path such as LNA, downconversion mixer, channel selection filter (CSF),
baseband programmable gain amplifier (PGA), Rx
VCO, Rx PLL, and LO distribution block. FC7850
also contains complete transmitter path such as
baseband amplifier, up-converter, RF
programmable gain amplifier (PGA), programmable
drive amplifier, Tx VCO, Tx PLL, and LO distribution
block.
GSM/GPRS/EDGE transceiver is a complete RF
front end for GSM/GPRS/EDGE wireless
communication. It has an integrated power
manager unit which can be directly connected to
battery power supply. The receive section interfaces
between the RF band-select SAW filter and
baseband IC. The GSM/GPRS/EDGE receiver
employs a digital low-IF/Zero IF architecture, and
support both universal analog baseband interfaces
and DigRF 1.12 digital interface. In GSM GMSK
modulation mode, the transmit section provides a
direct modulation PLL transmitter from the
baseband subsystem to the power amplifier (PA). In
8PSK mode, traditional direct modulation
architecture to translate BB 8PSK signal to RF. A
fast settling fractional-N synthesizer is fully
integrated including RF VCO, loop filters, and
varactors, and etc.
F
EATURES
HSPA/HSPA+/LTE transceiver chip supports
2RX and 1TX (2x1) MIMO receiver diversity
transceiver covering multi-band (Band1~40)
from 680MHz to 2700MHz.
HSPA/HSPA+/LTE transceiver chip capable of
FDD-LTE and TDD-LTE.
HSPA/HSPA+/LTE transceiver chip requires
modem assisted TX LO leakage, TX I/Q and
RX DC offset calibration along with selfcalibrated VCO and RX and TX filter cut-off
frequency calibration.
GSM/GPRS/EDGE transceiver covers GSM
850, E-GSM 900, DCS1800, and PCS1900
with low-IF/Zero IF receiver and direct
modulation transmitter architecture.
GSM/GPRS/EDGE transceiver supports
universal analog baseband interface and also
DigRF V1.12 digital interface
GSM/GPRS/EDGE transceiver integrates
LDO (3.3 to 4.2V) allowing reception of
battery voltage
7x7mm small leadless BGA package
A
PPLICATIONS
-
Multi-band GSM/EDGE/LTE/HSPA+ mobile
phone
-
Multi-band GSM/EDGE/LTE/HSPA+ wireless
data modems
R
EVISION HISTORY
-
Tentative version: August, 12, 2011.
-
Preliminary version: Feb, 03, 2012.
FCI Confidential and Proprietary Information
These materials could be changed without prior notice.
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Last Update Feb/03/2012
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