SE4110S
GPS Receiver IC
Applications
High sensitivity / low power GPS and A-GPS
applications
Portable navigation devices, mobile phones and
GPS peripheral devices
Telematics equipment
Product Description
The SE4110S is a highly integrated GPS receiver
offering high performance and low power operation in a
wide range of low-cost applications. It is particularly well
suited to cellphone and high sensitivity L1-band GPS /
A-GPS systems.
The SE4110S includes an on-chip LNA, a low IF
receiver with a linear AGC and 2-bit analogue-to-digital
converter (ADC). The receiver incorporates a fully
integrated image reject mixer so no SAW filter is
required in many applications. There is also an on-chip
IF filter.
The SE4110S supports a wide range of reference
frequencies addressing both traditional GPS systems
and emerging mobile phone applications. The
synthesizer is highly integrated requiring only two
passive components to implement an off-chip loop filter.
The SE4110S is optimized for the lowest possible
power consumption consistent with the very low
external component count.
The SE4110S incorporates current controlled low-
spurious output buffers which may optionally be run
from a separate external supply to interface to low
voltage systems. The buffers supply sufficient current to
drive most baseband devices directly.
Features
Single-conversion L1-band GPS radio with
integrated IF filter
Integrated LNA; 1.6 dB typ. noise figure
Low RF system noise figure; 2.25 dB typ.
Low 10 mA operating current with 2.7-3.3 V supply;
8 mA with internal LNA disabled
Standby current <10 µA
Fully Integrated PLL, compatible with 13, 16.368,
19.5 and 26MHz reference frequencies
2-bit SIGN & MAG Digital IF output
Integrated VCO and resonator
I/O supply range extends down to 1.7 V
2.2 x 2.2 x 0.3 mm, 46 pad, 250um pitch, SnAg
solder bump, RoHS-compliant package
Ordering Information
Part No.
SE4110S-R
Package
46-Pad Chip-Scale
Package
Remark
Shipped in Tape
& Reel
Functional Block Diagram
Optional
filter
LNA_OUT
MIX_IN
VAGC
IF Filter
AGC
Controller
-45°
AGC_DIS
Buffer
LNA
~
~
~
I
Q
MAG
ADC
SIGN
+45°
LNA_IN
Clock
select
Quadrature
÷2
VCO
Feedback
Divider
CLK_OUT
FREF2
FREF1
SE4110
~
Phase/Frequency
Detector
Reference
Divider
Chip
control
FREF0
RX_EN
OSC_EN
~
VTUNE
PLL Loop
Filter
Reference
Oscillator
/ Buffer
RVI
XTAL1
XTAL2
DST-00065
Rev 5.3 May 25-2009
1 of 2
SIGE [ SIGE SEMICONDUCTOR, INC. ]
