User Manual

ManualsBrandsRainbow Electronics ManualsGPS receiverATR0600

Rev. 4536F–GPS–10/03

Features

• Very Low Power Design (≈ 50 mW)

• Single IF Concept

• 2-bit ADC on Chip

• Small QFN Package (28 Pins)

• Highly Integrated, Few External Components

• UHF6 Technology

Electrostatic sensitive device.

Observe precautions for handling.

Description

With the growing importance of mobile communication, location awareness is a key

feature for more and more products and services. Due to its small size and minimal

power consumption, the GPS front-end IC ATR0600 is an ideal solution for mobile

applications and navigation systems.

Figure 1. Block Diagram

RFIN

LNA

SAW

Ant

PFD XTO

LC-BP

RFNIN

96.76 MHz

1575.42 MHz

Dig. IF at 4.35 MHz

VCO

1478.6

VS3

VDIG

Power

control

REF

NBPI

VGA amp

BP-Filter

AGCO

23.104 MHz

SIGL

SIGH

VS1

VS2

VS5

23.104 MHz

MHz

BPI

NBP

XTO

NXTO

VS7

GPS

Front-end IC

ATR0600

Preliminary

Summary of content (11 pages)

PAGE 1
Features • • • • • • Very Low Power Design (≈ 50 mW) Single IF Concept 2-bit ADC on Chip Small QFN Package (28 Pins) Highly Integrated, Few External Components UHF6 Technology GPS Front-end IC Electrostatic sensitive device. Observe precautions for handling. ATR0600 Description With the growing importance of mobile communication, location awareness is a key feature for more and more products and services.
PAGE 2
Pin Configuration n.c. RFNIN RFIN VS3 P1 P2 n.c. Figure 2. Pinning QFN28 14 13 12 11 10 9 8 15 16 17 18 19 20 21 22 23 24 25 26 27 28 7 6 5 4 3 2 1 X VS5 XTO NXTO VS7 NX AGCO GC VS2 REF SIGL SIGH VDIG SC BP NBP BPI NBPI VS1 n.c. n.c.
PAGE 3
ATR0600 [Preliminary] Functional Description The specification of GPS receivers for personal mobile applications strongly differs from stand-alone GPS receiver specifications. One reason is the presence of strong blocking signals from mobile transmitters which might cause unacceptable levels of degradation in the carrier-to-noise ratio of a GPS system if not sufficiently suppressed. The other reason is the requirements for very low power consumption.
PAGE 4
. Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Parameters Symbol Value Unit Supply voltage VS 3.7 V Input voltage Vin 3.
PAGE 5
ATR0600 [Preliminary] Electrical Characteristics (Continued) No. 2 2.1 2.2 3 Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type* st Mixer and 1 IF-filter Output frequency fref = 23.104 MHz 15, 16 fIF 96.76 MHz B Input impedance fref = 1575 MHz 12, 13 Zin, IF 13 - j80 W C fin, VGA 96.76 MHz VGA and 2nd IF-filter Bandpass center frequency fref = 23.104 MHz 3.2 Minimum gain VGC = 1.0 V GVGA, min 0 dB D 3.3 Maximum gain VGC = 2.2 V GVGA, max 75 dB D 3.
PAGE 6
Interface Description Figure 3. Clock Interface VDIG 20k SC SC I 10p Chip Maximum load capacitance Figure 4. SIGH Interface VDIG 20k SIGH SIGH 10p I Chip Maximum load cap. Figure 5. SIGL Interface VDIG 20k SIGL SIGL I 10p Chip Maximum load cap. Figure 6. Supply VDIGI Interface VDIG VDIG 1.8V Chip Supply Figure 7.
PAGE 7
ATR0600 [Preliminary] Figure 8. Power Control Interface P2 VDD 20k P2 P2 50k 100k Application Chip Figure 9. Automatic Gain-control Interface VCC 32uA I 150k 44k AGCO AGCO 50p GC 100p Chip Chip, connected to AGCO Figure 10.
PAGE 8
Figure 11. Mixer Input Interface VCC 250uA 2.5k 2.5k RF NRF 2mA Chip RFx RF NRF NRFx Application (Matching) Figure 12.
PAGE 9
ATR0600 [Preliminary] Figure 13. IF-filter Interface BP Imax 2mA BP 2p 220nH 300fF VCC BPI BPI 220nH 2p 60uA 5p VCC NBPI NBPI 5p VCC 220nH 68 2p 300fF 60uA NBP NBP Imax 2mA Chip 220nH 2p Application (IF-Filter) Figure 14.
PAGE 10
Ordering Information Extended Type Number ATR0600-PJQ Package QFN28 - 5x5 Remarks Taped and reeled Package Information 10 ATR0600 [Preliminary] 4536F–GPS–10/03
PAGE 11
Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg.