UPB1008 Datasheet, PDF (1/9 Pages) NEC – NECs LOW POWER GPS RF RECEIVER

NEC's LOW POWER
GPS RF RECEIVER
UPB1008K
FEATURES
• LOW POWER CONSUMPTION: 52 mW
• DUAL-CONVERSION IQ DOWN CONVERTER¹:
Reference frequency: REFin = 27 MHz
• PSEUDO-BASEBAND WITH 2-BIT DIGITIZED OUTPUT
• ON-CHIP LNA, ON-CHIP FREQUENCY SYNTHESIZER,
IF AGC AMPLIFIER:
with 45 dB typical range of adjustable gain
• SMALL 36 PIN QFN PACKAGE:
Flat lead style for better RF performance
Note:
1. Based on eRide's proprietary GPS DSP architecture
BLOCK DIAGRAM
PIN 1 –
LNA
1stMIX
AGC
OSC
PD
1/2
ADC
ADC
APPLICATIONS
• E911 ENABLED MOBILE PHONE
• IN-VEHICLE NAVIGATION SYSTEMS
• LOW POWER HANDHELD GPS RECEIVER
• PC/PDA+GPS INTEGRATION
• ASSET TRACKING
RF APPLICATION DIAGRAM
DESCRIPTION
NEC's UPB1008K is a Silicon RFIC especially designed for
handheld low power/low cost GPS receivers. The IC com-
bines an LNA, followed by a double-conversion RF/IF
downconverter block and a PLL frequency synthesizer on one
chip. The second IF Freqency is a pseudo- baseband signal
into a on-chip 2-bit A/D converters.The device can operate on
a supply voltage as low as 2.7 V, and is a housed in a small 36
pin QFN (Quad, Flat, No-lead) package, resulting in a very low
power consumption and reduced board space.
NEC's stringent quality assurance and test procedures en-
sure the highest reliability and performance.
1st Mixer
IF filter
LNA
AGC
RF SAW
TANK
/2
/4
Nyquist Filters
2-bit
ADC
2-bit
ADC
ISign
IMag
QSign
QMag
Loop
Filter
/6
/7
/2
PLL Frequency
Counters
/8
/2
Regulator Circuitry
I/Q
Balance
REFin
27 MHz
Reference
Clock
California Eastern Laboratories