Rainbow-electronics ATR0601 Manual de usuario

Features•Very Low Power Design (40 mW)•Single IF Architecture•Excellent Noise Performance •1.5-bit ADC On Chip•Small QFN Package (4 mm × 4 mm, 24 pin

104866A–GPS–08/05ATR0601 [Preliminary] Figure 9-3. Equivalent Application Examples Using a GPS TCXO (Please see Table 9-3 on page 12) Figure 9-4. Ap

114866A–GPS–08/05 ATR0601 [Preliminary] Figure 9-5. Recommended IF-filter: Layout versus Schematic Note: Mutual inductance between the four inductors

124866A–GPS–08/05ATR0601 [Preliminary] Table 9-3. Specification of GPS TCXOs Appropriate for the Application Example Shown in Figure 9-3 on page 10P

134866A–GPS–08/05 ATR0601 [Preliminary] 10. Demonstration BoardFigure 10-1. Schematic of Demonstration Board 20PUXTOJ9J81561212312323AGCO EGC21121212

144866A–GPS–08/05ATR0601 [Preliminary] Figure 10-2. Illustration of Demonstration Board Table 10-1. BOM of Demonstration BoardQty Value Device Parts

154866A–GPS–08/05 ATR0601 [Preliminary] 11. Recommended FootprintFigure 11-1. Recommended Footprint (QFN24 - 4 mm × 4 mm)

164866A–GPS–08/05ATR0601 [Preliminary] 13. Package Information 12. Ordering InformationExtended Type Number Package RemarksATR0601-PFQW QFN24, 4 ×

Printed on recycled paper.4866A–GPS–08/05© Atmel Corporation 2005. All rights reserved. Atmel®, logo and combinations thereof, Everywhere You Are® an

24866A–GPS–08/05ATR0601 [Preliminary] 2. Pin ConfigurationFigure 2-1. Pinning QFN24 123456181716151413789101112242322212019Paddle GNDVDIGAGCONXTONXX

34866A–GPS–08/05 ATR0601 [Preliminary] 3. Functional Description3.1 General DescriptionThe ATR0601 GPS receiver IC has been especially designed for G

44866A–GPS–08/05ATR0601 [Preliminary] 3.7 VGA/AGCThe output of the IF-Filter drives an on-chip Variable Gain Amplifier (VGA) which is combined with

54866A–GPS–08/05 ATR0601 [Preliminary] 4. Absolute Maximum RatingsStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent d

64866A–GPS–08/05ATR0601 [Preliminary] 2Mixer2.1 Output frequency fXTO = 23.104 MHz 13, 14 fIF96.764 MHz A2.2Input impedance (balanced)fRF = 1575.42

74866A–GPS–08/05 ATR0601 [Preliminary] 8. TimingFigure 8-1. Recommended Power-up/down Sequence Figure 8-2. Recommended Sleep-mode Sequence Figure 8-3

84866A–GPS–08/05ATR0601 [Preliminary] Figure 8-5. Synchronous Shut-down Behaviour of SC with Respect to PUxto Figure 8-6. Data Outputs SL and SH are

94866A–GPS–08/05 ATR0601 [Preliminary] 9. Application CircuitFigure 9-1. Application Example Using a GPS Crystal with ESRtyp = 12Ω (Please see Table