Product Specification AirPrime AR Series Preliminary 0.
Product Specification Important Notice Due to the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost.
Product Specification Patents Portions of this product may be covered by some or all of the following US patents: 5,515,013 6,191,741 6,653,979 6,968,171 7,287,162 5,629,960 6,199,168 6,697,030 6,985,757 D442,170 5,845,216 6,339,405 6,785,830 7,023,878 D459,303 5,847,553 6,359,591 6,845,249 7,053,843 D599,256 5,878,234 6,400,336 6,847,830 7,106,569 D560,911 5,890,057 6,516,204 6,876,697 7,145,267 5,929,815 6,561,851 6,879,585 7,200,512 6,169,884 6,643,501 6,886,049 7,295,171 and other patents pendi
Product Specification Document History Version Date Updates 0.1 December 9, 2009 Creation 0.2 December 14, 2009 Updates for Preliminary release Preliminary Rev 0.
Contents 1. OVERVIEW .......................................................................................................... 8 1.1. Reference Specifications ................................................................................................... 8 2. FEATURES .......................................................................................................... 9 2.1. Modes of Operation ......................................................................................................
List of Figures Figure 1. AR3550/5550 Block Diagram .......................................................................................... 10 Figure 2. AppCAD screenshot for MicroStrip design power mode diagram ................................... 16 Figure 3. RF routing examples ....................................................................................................... 17 Figure 4. Coplanar clearance example..............................................................................
List of Tables Table 1: AirPrime AR series intelligent embedded modules ........................................................... 8 Table 2: Reference specifications ................................................................................................... 8 Table 3: AR3550 modes of operation .............................................................................................. 9 Table 4: Communications functions .....................................................................
1. Overview This document is the Hardware Product Specification for the AirPrime AR series of intelligent embedded modules. It defines the high level product features and illustrates the interfaces for these features. This document is intended to cover the hardware aspects of the product series, including electrical and mechanical. The AirPrime AR series of intelligent embedded modules are designed for the automotive industry and any market with similar quality and life-time support requirements.
2. Features This chapter highlights the features of the AirPrime AR series intelligent embedded modules. 2.1. Modes of Operation The AR3550 support CDMA 1xRTT operation in the US Cellular (BC0) and US PCS (BC1) frequency Bands. All models also support Standalone GNSS operation. For complete details, refer to the tables below. Table 3: AR3550 modes of operation Mode Band CDMA2000 1xRTT GNSS 2.2.
Product Specification 2.3. Features Block Diagrams Figure 1. AR3550/5550 Block Diagram Preliminary Rev 0.
3. Hardware Specification 3.1. Environmental Specification The environmental specification for both operating and storage are defined in the table below. Table 5: Environmental specifications Parameter Temperature Range -30°C to +75°C (Class A) Ambient Operating Temperature -40°C to +85°C (Class B) Ambient Storage Temperature -40°C to +90°C Ambient Humidity 95% or less 3.2. ESD Specification The AirPrime AR series devices are sensitive to Electrostatic Discharge.
4. RF Specification The section presents the RF interface of the AirPrime AR series intelligent embedded module. The specifications for the CDMA interfaces are defined. 4.1. CDMA RF Interface This section presents the CDMA RF Specification for the AirPrime AR3550. These AirPrime AR series devices are designed to be compliant with 3GPP2 C.S0011 Rev A and additionally 3GPP2 C.S0033 Rev A v1.0 for the AR3550. Parameters specified differently for the reference standard are identified below. 4.1.1.
5. GNSS Specification The AirPrime AR series intelligent embedded module includes optional Global Navigation Satellite System (GNSS) capabilities via the Qualcomm gpsOne Gen8 Engine, capable of operation in assisted and stand-alone GPS modes. 5.1. GPS The GPS implementation supports GPS L1 operation centered at 1575.42 MHz (+/- 1 MHz). 6. Baseband Specification 6.1. Power Supply The AirPrime AR series is powered via a single regulated DC power supply, 4.0V ± 5%.
Product Specification 6.3. Baseband Specification USB The AirPrime AR series has a High Speed USB2.0 compliant, peripheral only interface. Table 11: USB pad details Pad Name Direction Function R1 USB_VBUS Input USB Power Supply V1 USB_D_P In/Out Differential data interface positive T1 USB_D_M In/Out Differential data interface negative The AirPrime AR series will not be damaged if a valid USB_VBUS is supplied while the main DC power is not supplied.
Product Specification Preliminary Baseband Specification Rev 0.
Product Specification RF Circuit Routing Constraints 7. RF Circuit Routing Constraints 7.1. General recommendations To route the RF antenna signals, the following recommendations must be observed for PCB layout: The RF signals must be routed using traces with a 50 characteristic impedance. Basically, the characteristic impedance depends on the dielectric constant (εr) of the material used, trace width (W), trace thickness (T), and height (H) between the trace and the reference ground plane.
Product Specification RF Circuit Routing Constraints Poor routing Correct routing The yellow traces cross the RF trace. There is no signal around the RF path. Figure 3. RF routing examples Fill the area around the RF traces with ground and ground vias to connect inner ground layers for isolation. Cut out ground fill under RF signal pads to reduce stray capacitance losses. Avoid routing RF traces with sharp corners. A smooth radius is recommended.
8. Regulatory Information Important Notice Because of the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost.
Product Specification 3. The AR Series device and the antenna must not be co-located or operating in conjunction with any other transmitter or antenna within a host device. 4. A label must be affixed to the outside of the end product into which the AR Series device is incorporated, with a statement similar to the following: a. For AR3550: This device contains FCC ID: N7NAR3550 This equipment contains equipment certified under IC: 2417C-AR3550 b.
