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User Manual

2.8.7. ADC Interface

An Analog to Digital Converter (ADC) input is provided by the M14Q2. The converter is a 16 bit

resolution, ranging from 0.1 V to 1.7 V, with a sampling rate of 2.4 MHz.

Layout suggestion:

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Should be protected by GND

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Should be protected from noise and other easily radiated signals

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Summary of Contents for M14Q2

Page 1: ...1 33 Normal Internal Use Confidential Restricted Confidential User manual Project Name M14Q2 Author Wistron NeWeb Corporation Revision 1 0 Revision Date 2016 06 23 ...

Page 2: ...fidential Restricted Confidential User Manual Contact Information Sale and Technical Support SupportIoT MBA wnc com tw Website www wnc com tw Revision History Rev Author Summary of Changes Date 1 0 WNC MBU Draft release 2016 6 23 ...

Page 3: ...e undesired operation This device has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiated radio frequency energy and if not installed and used in accordance with the instruc...

Page 4: ...NT NOTE This module is intended for OEM integrator The OEM integrator is still responsible for the FCC compliance requirement of the end product which integrates this module 20cm minimum distance has to be able to be maintained between the antenna and the users for the host this module is integrated into Under such configuration the FCC radiation exposure limits set forth for an population uncontr...

Page 5: ...able in the users manual This device complies with Part 15 of FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation ...

Page 6: ...s 9 2 1 1 LGA Pad Diagram 9 2 1 2 Pin Assignments 10 2 2 Power supply 12 2 3 USB interface 14 2 4 SGMII interface 15 2 5 HSIC interface 16 2 6 SIM interface 17 2 7 Control interface wakeup 17 2 8 Digital interface 18 2 8 1 JTAG Interface 18 2 8 2 SPI Master Interface 18 2 8 3 PCM Interface 19 2 8 4 I2S Interface 19 2 8 5 I2C Interface 20 2 8 6 UART Interface 20 2 8 7 ADC Interface 21 3 RF Specific...

Page 7: ...and sensitivity 24 3 5 Radiated sensitivity measurement 25 3 6 Supported frequencies 25 4 Software Interface 27 4 1 Support tools 27 4 2 USB interface 27 5 Mechanical and Environmental Certifications 28 5 1 PCBA Form Factor 28 5 2 Labeling 31 6 Regulatory Compliance and Certification 32 6 1 Certification testing 32 7 Safety Recommendation 33 ...

Page 8: ...roprocessor running a Linux OS with a variety of host interfaces including USB 2 0 SGMII SPI UART PCM I2C HSIC USIM SDC The module supports integrated VoLTE functionality with a variety of narrow and wide band CODECs and full IMS signaling 1 1 Features 3GPP category support LTE Cat 1 with 10Mbps downlink 5Mbps uplink Supports LTE B2 4 12 Ultra high performance Cortex A7 microprocessor Modem subsys...

Page 9: ...9 33 Normal Internal Use Confidential Restricted Confidential User Manual 2 Electrical Specifications 2 1 Host interface pin assignments 2 1 1 LGA Pad Diagram Figure 1 LGA pad diagram top view ...

Page 10: ...SB_HS_DM USB Data Negative I O HSIC HSIC USB_STROBE HSIC USB Strobe I O HSIC USB_DATA HSIC USB Data I O SGMII SGMII_RX_P SGMII receive plus I SGMII_RX_M SGMII receive minus I SGMII_TX_P SGMII transmit plus O SGMII_TX_M SGMII transmit minus O SGMII_MDIO SGMII Management data I O SGMII_MDC SGMII Management data clock I O UART1 UART1_CTS_N Clear To Send for UART 1 I UART1_RFR_N UART ready for frame O...

Page 11: ...he module I WAKEUP_OUT Module wakes up host ORGPIO O WAKEUP_IN Hostwakesupmodule ORGPIO I RESET Reset the module I Power and Ground VREF Voltage Reference Output O VCC Main Power I GND GND I General Purpose GPIO Digital I O I O ADC_CONVENTOR ADC_CONVENTOR I AUDIO PCM I2S PCM_DIN PCM_DIN IO AUX_BT_I2S_DATA0 AUX_BT_I2S_DATA0 IO PCM_DOUT PCM_DOUT IO AUX_BT_I2S_DATA1 AUX_BT_I2S_DATA1 IO PCM_CLK PCM_CL...

Page 12: ...ding to the final version of the MDM9207 datasheet 2 2 Power supply LTE module power input is VCC The internal power chipset will transfer VCC to other power level Table 3 Power supply specifications Power Pin Name Pads Description Voltage Level V Min Typ Max VCC VCC1 to VCC6 Nos 37 to 42 Main Power Supply 3 3 3 8 4 2 The M14Q2 includes an integrated power manager enabling single and direct voltag...

Page 13: ... V 1 8 V 1 8 V 3 075 V 2 85 V 2 85 V 1 8 V 1 8 V 1 225 V 1 025 V 1 8 V 1 15 V 2 85 V 2 7 V VREG_L1 VREG_L4 VREG_L6 VREG_L7 VREG_L9 VREG_L12 VREG_L14 VREG_XO VREG_LPDDR VREG_L2 VREG_L3 VREG_L5 VREG_L8 VREG_L10 VREG_L11 VREG_L13 VREG_RFCLK 1 8 V 1 8 V 0 6 V Figure 2 M14Q2 internal power path Layout Suggestion Each power trace should possess sufficient line width to withstand its respective current l...

Page 14: ... be less than 150 mils Maximum length for each trace 150 mm Signals lengths on M14Q2 are tuned as below Function Net Length mil USB USB_Dp 545 54 USB_Dn 503 04 Name Description Input Output Direction to module Voltage Level V Min Typ Max D USB data positive low full speed Input High 2 3 3 3 6 Input Low 0 0 8 Output High 2 8 3 3 3 6 Output Low 0 3 USB data positive high speed Input High 0 3 0 44 In...

Page 15: ...0 100 Mbps Supports VLAN tagging Supports IEEE 1588 Precision Time Protocol PTP Can be used to connect to external Ethernet PHYs such as AR8033 or to an external switch The following figures describe an example of the additional logic connection between the M14Q2 and the Ethernet chip Figure 3 SGMII circuit example Layout suggestion Differential impedance 100 Ω Space to other signals 3x line width...

Page 16: ... SGMII_RX_M_C SGMII_RX_M 675 06 2 5 HSIC interface The M14Q2 includes a HSIC interface This host interface can be connected to other application processor or interface transfer chipset Figure 4 HSIC circuit example Layout suggestion Single end impedance 50 Ω Intra lane mismatch 2 mm Maximum trace length 100 mm Signals lengths on the M14Q2 are tuned as below Function Net Length mil HSIC HSIC_STB 28...

Page 17: ...d the host to be able to enter low power states whenever possible and the other side to wake it up once required For example if the host has no data to transmit nor any other tasks it may enter some low power state according to its own capabilities and configurations If during that period the host is in a low power state and the modem suddenly receives data it must wake up the host A similar requi...

Page 18: ...m Output LOW The MODEM does not require the Host allowing it to sleep HIGH The MODEM requires the Host or acknowledges it is ready following a wakeup request from the SoC 2 8 Digital interface This section provides the required AC timing information relating to Module Digital Interfaces 2 8 1 JTAG Interface There is one JTAG interface for LGA module debugging Figure 6 JTAG schematic example 2 8 2 ...

Page 19: ...ace The LGA module provides one PCM digital audio interface The PCM data bus voltage level is 1 8 V Figure 7 PCM connection example 2 8 4 I2S Interface PCM and I2S share the same pins on the M14Q2 the PCM signal pins can be configured as an I2S interface Config1 Config2 PCM_SYNC I2S_WS PCM_DIN I2S_DATA0 PCM_DOUT I2S_DATA1 PCM_CLK I2S_SCK Figure 8 I2S connection example ...

Page 20: ...pull high resistors to 1 8 V through the 2 2 kΩ resistors is recommended Figure 9 I2C connection example 2 8 6 UART Interface There are two UART interfaces One is a 4 bit UART for high speed data transfer and the other is a 2 bit UART for diagnostic tools and debugging Figure 10 UART connection example ...

Page 21: ...C Interface An Analog to Digital Converter ADC input is provided by the M14Q2 The converter is a 16 bit resolution ranging from 0 1 V to 1 7 V with a sampling rate of 2 4 MHz Layout suggestion Should be protected by GND Should be protected from noise and other easily radiated signals ...

Page 22: ... ANT0_TRX pad Pin15 Primary RX TX path ANT1_DRX pad Pin21 Diversity path ANT_GNSS pad Pin9 NA 3 2 RF Layout guidance It is recommended that grounds not be present under the surface of the RF pads in the layout Details are included below Layer1 Layer2 Layer3 0 5mm 0 5mm GND GND GND Pin9 Pin15 Pin21 The RF trace between RF pads and antenna should as shorter as possible with 50ohm characteristic impe...

Page 23: ...e spacing Microstrip type is required The detail simulation as below The RF trace of the test board which was used in the FCC test is defined as below Primary Antenna interface port RF I O port Primary path RF I O port Diversity path Diversity Antenna interface port R1 R2 R3 R4 Length1 1000mil Length2 white 1461mil Trace width 20mil Trace width 20mil Note R1 R2 R3 R4 0ohm ...

Page 24: ...developers in identifying the interference that may affect the M14Q2 when is it used in systems Interference from other wireless devices Harmonics inter modulated signal generated from wireless devices that fall in RX ranges of the M14Q2 may result in degraded RX performance It is highly recommended to check RX performance of entire systems within the shielding environment Interference from host i...

Page 25: ...arly stages of development 3 5 Radiated sensitivity measurement Over the air testing can demonstrate the TRX ability of the whole system Keys elements that affect the measurement are Module ability refer Specification Antenna Gain System noise source The OTA performance should be performed in an OTA chamber IO05Pin129 GPI 3 6 Supported frequencies Table 5 Band support Band Uplink MHz Downlink MHz ...

Page 26: ...l User Manual Table 7 Conductive Rx sensitivity Band Items Parameter Unit Min Typ Max LTE Band 2 Receive Sensitivity 10 MHz with 50 RBs dBm 94 3 LTE Band 4 Receive Sensitivity 10 MHz with 50 RBs dBm 96 3 LTE Band 12 Receive Sensitivity 10 MHz with 50 RBs dBm 93 3 ...

Page 27: ... Software Interface 4 1 Support tools The M14Q2 is compatible with the following support tools WNC M14Q2 Connection Manager WNCCM 4 2 USB interface The M14Q2 supports 3GPP standard AT commands and proprietary AT commands the MAL Manager SDK is also supported for Linux platforms ...

Page 28: ... Internal Use Confidential Restricted Confidential User Manual 5 Mechanical and Environmental Certifications 5 1 PCBA Form Factor Dimensions 26 3 mm typ 23 1 mm typ 2 3 mm typ tolerance 0 15 mm Top view Right view ...

Page 29: ...29 33 Normal Internal Use Confidential Restricted Confidential User Manual Bottom view ...

Page 30: ...30 33 Normal Internal Use Confidential Restricted Confidential User Manual Pads location Pin1 location Figure 11 PCBA dimensions ...

Page 31: ... label must be visible through a window on the final device or it must be visible when an access panel door or cover is easily re moved If not a second label must be placed on the outside of the final device that contains the following text Contains FCC ID NKRM18Q2 The grantee s FCC ID can be used only when all FCC compliance requirements are met ...

Page 32: ...32 33 Normal Internal Use Confidential Restricted Confidential User Manual 6 Regulatory Compliance and Certification 6 1 Certification testing PTCRB FCC and AT T TA ...

Page 33: ...supplied with a stabilized voltage source and the wiring must conform to the security and fire prevention regulations This product must be handled with care avoid any contact with the pins because electrostatic discharge may damage the product Same caution must be taken regarding the SIM card carefully check the instructions for its use Do not insert or remove the SIM when the product is in power ...

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