AirPrime MC7750 Hardware Integration Guide 2130114 Rev 3.0.
Preface 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.
AirPrime MC7750 Hardware Integration Guide Patents This product may contain technology developed by or for Sierra Wireless Inc. This product includes technology licensed from QUALCOMM®. This product is manufactured or sold by Sierra Wireless Inc. or its affiliates under one or more patents licensed from InterDigital Group. Copyright © 2012 Sierra Wireless. All rights reserved. Trademarks Sierra Wireless™, AirPrime™, Watcher™ and the Sierra Wireless logo are trademarks of Sierra Wireless.
Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 The Universal Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Required connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Overview of operation . . . . . . . . . . . . . . . . .
AirPrime MC7750 Hardware Integration Guide OEM integration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Application of regulatory guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 OEM device classification process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Acronyms and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Index. . . . . . . . . . . . . . . . . . . . . . . . . . .
1 1: Introduction Sierra Wireless’ AirPrime Intelligent Embedded Modules form the radio component for the products in which they are embedded. The AirPrime MC7750 is available for use on LTE, CDMA, and GSM networks. Note: An understanding of network technology, and experience in integrating hardware components into electronic equipment is assumed.
AirPrime MC7750 Hardware Integration Guide • 8 Industry-standard USIM connector—the actual connector you use depends on how your device exposes the USIM socket. For example, the USIM connector used on the Mini Card Dev Kit board is an ITT CCM03-3518.
2 2: Power Interface Overview of operation AirPrime embedded modules are designed to use a 3.3V (nominal) power supply provided by the host. It is the host’s responsibility to provide safe and continuous power to the module at all times; the module does NOT have an independent power supply, or protection circuits to guard against electrical issues. The module’s power state is controlled by the host’s assertion/ deassertion of W_Disable#.
AirPrime MC7750 Hardware Integration Guide Note: ESD protection is highly recommended for the USIM connector at the point where the contacts are exposed, and for any other signals from the host interface that would be subjected to ESD by the user of the product. Module power states Note: The module unit defaults to the Normal state when VCC is first applied in the absence of W_Disable# control. The module has five power states: • Disconnected No power to the module.
Power Interface Sleep state In this state, the host and module are powered up, and the module cycles between wake (polling the network) and sleep, at network provider-determined interval. This is the normal state of the module between calls or data connections. Note: This is the default state when VCC is first applied in the absence of W_Disable# control. Normal state This is the active state of the module. In this state: • The module is fully powered.
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3 3: RF Integration The AirPrime MC7750 operates on the following frequencies: Table 3-1: Supported RF bands (MC7750) Technology Band Frequency range (MHz) LTE 13 Tx: 777–787 Rx: 746–756 WCDMAa 1 (UMTS 2100) Tx: 1920–1980 Rx: 2110–2170 2 (UMTS 1900) Tx: 1850–1910 Rx: 1930–1990 5 (UMTS 850) Tx: 824–849 Rx: 869–894 8 (UMTS 900) Tx: 880–915 Rx: 925–960 GSM 850 Tx: 824–849 Rx: 869–894 EGSM 900 Tx: 880–915 Rx: 925–960 DCS 1800 Tx: 1710–1785 Rx: 1805–1880 PCS 1900 Tx: 1850–1910 Rx: 1930–199
AirPrime MC7750 Hardware Integration Guide RF connection When attaching an antenna to the module: Note: To disconnect the antenna, make sure you use the Hirose U.FL connector removal tool (P/N UFL-LP-N-2(01)) to prevent damage to the module or coaxial cable assembly. • Use a Hirose U.FL connector (model U.FL #CL331-0471-0-10) to attach an antenna to a connection point on the module.
RF Integration Developing custom antennas Consider the following points when developing custom-designed antennas: • A skilled RF engineer should do the development to ensure that the RF performance is maintained. • Identify the bands that need to be supported. Determining the antenna’s location Consider the following points when deciding where to put the antenna: Note: The MC7750 is based on ZIF (Zero Intermediate Frequency) technologies.
AirPrime MC7750 Hardware Integration Guide • The Tx power and corresponding broadband noise of other wireless devices may overload or increase the noise floor of the module’s receiver, resulting in Rx desense. The severity of this interference depends on the closeness of the other antennas to the module’s antenna. To determine suitable locations for each wireless device’s antenna, thoroughly evaluate your host device’s design.
A A: 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.
AirPrime MC7750 Hardware Integration Guide Important compliance information for North American users The MC7750 modem has been granted modular approval for mobile applications. Integrators may use the MC7750 modem in their final products without additional FCC/IC (Industry Canada) certification if the following conditions are met. Otherwise, additional FCC/IC approvals must be obtained.
test lab to determine how regulatory guidelines will impact the device compliance. Proactive management of the regulatory process will minimize unexpected schedule delays and costs due to unplanned testing activities. Device classifications The OEM integrator must determine the minimum distance required between their device and the user’s body. The FCC provides device classification definitions to assist in making the correct determination.
AirPrime MC7750 Hardware Integration Guide 4. If the device classification is Mobile, confirm the antenna does not violate the Gain Limits specific to the module grant as specified in Important compliance information for North American users on page 18. 5. Outline and execute a test plan with the preferred regulatory test lab. Testing is likely to include some or all of Parts 15, 22, 24, 27, and either SAR (for Portable devices) or MPE (for Mobile devices). 6.
OEM product instruction manual content Consistent with §2.909(a), the following text must be included within the user’s manual or operator instruction guide for the final commercial product. (OEMspecific content is displayed in italics.) Operating Requirements and Conditions The design of (Product Name) complies with U.S. Federal Communications Commission (FCC) guidelines respecting safety levels of radio frequency (RF) exposure for (OEM to insert device classification: Mobile or Portable) devices.
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B B: Acronyms and Definitions .
AirPrime MC7750 Hardware Integration Guide Table B-1: Acronyms and definitions Acronym or term 24 Definition RF Radio Frequency RMS Root Mean Square SA Selective Availability Sensitivity (Audio) Measure of lowest power signal that the receiver can measure Sensitivity (RF) Measure of lowest power signal at the receiver input that can provide a prescribed BER/BLER/SNR value at the receiver output.
Index A M acronyms and definitions, 23– 24 antenna connection considerations, 14 custom, considerations, 15 limit, matching coaxial connections, 14 location, considerations, 15 matching, considerations, 14 maximum cable loss, 14 module power states, 10– 11 N noise leakage, minimizing, 14 RF interference, power supply, 15 normal, module power state, 11 C O cable loss antenna, maximum, 14 connection grounding, 14 connectors, required EDGE mating (52-pin), 7 host-module, 7– 8 RF, Hirose, 7 USIM, 8 off,
AirPrime MC7750 Hardware Integration Guide S sensitivity RF parameter, 13 shielding module, compliance, 14 SIM See also USIM simultaneous transmission evaluation, 20 sleep, module power state, 11 U UDK (Universal Development Kit) components, included, 7 26 Universal Development Kit (UDK) components, included, 7 USIM connector type, required, 8 W W_Disable# Normal state, 11 off state, 10 Z ZIF (Zero Intermediate Frequency), 15 Proprietary and Confidential 2130114
