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LTE Module Series

EC25 Mini PCIe Hardware Design

EC25_Mini_PCIe_Hardware_Design Confidential / Released 29 / 42

4

Electrical and Radio Characteristics

4.1. General Description

This chapter mainly describes the following electrical and radio characteristics of EC25 Mini PCIe:



Power supply requirements



I/O requirements



Current consumption



RF characteristics



GNSS receiver



ESD characteristics

4.2. Power Supply Requirements

The input voltage of EC25 Mini PCIe is 3.3V±9%, as specified by

PCI Express Mini CEM Specifications

1.2

. The following table shows the power supply requirements of EC25 Mini PCIe.

Table 14: Power Supply Requirements

Parameter

Description

Min.

Typ.

Max.

Unit

VCC_3V3

Power Supply

3.0

3.3

3.6

V

Quectel

Confidential

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Содержание EC25 series

Страница 1: ...EC25 Mini PCIe Hardware Design LTE Module Series Rev EC25_Mini_PCIe_Hardware_Design_V1 1 Date 2017 01 24 www quectel com...

Страница 2: ...E INFORMATION PROVIDED IS BASED UPON CUSTOMERS REQUIREMENTS QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMAT...

Страница 3: ...2017 01 24 Lyndon LIU Frank WANG 1 Deleted description of EC25 AUT Mini PCIe in Table 1 2 Added description of EC25 AU and EC25 J Mini PCIe in Table 1 3 Updated key features of EC25 Mini PCIe in Table...

Страница 4: ...n of Interface 14 3 2 2 Pin Assignment 17 3 3 Power Supply 18 3 4 USIM Card Interface 19 3 5 USB Interface 20 3 6 UART Interface 21 3 7 PCM and I2C Interfaces 22 3 8 Control Signals 24 3 8 1 RI Signal...

Страница 5: ...re Design EC25_Mini_PCIe_Hardware_Design Confidential Released 4 42 5 2 Mechanical Dimensions of EC25 Mini PCIe 38 5 3 Standard Dimensions of Mini PCI Express 39 5 4 Packaging Specification 40 6 Appen...

Страница 6: ...NS OF NETWORK STATUS 26 TABLE 13 ANTENNA REQUIREMENTS 27 TABLE 14 POWER SUPPLY REQUIREMENTS 29 TABLE 15 I O REQUIREMENTS 30 TABLE 16 EC25 MINI PCIE CONDUCTED RF OUTPUT POWER 30 TABLE 17 EC25 A MINI PC...

Страница 7: ...MODE 23 FIGURE 7 TIMING IN AUXILIARY MODE 23 FIGURE 8 REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC 24 FIGURE 9 RI BEHAVIOR 25 FIGURE 10 TIMING OF RESETTING MODULE 26 FIGURE 11 LED_WWAN SIGNA...

Страница 8: ...s air interfaces This document can help you to quickly understand the interface specifications electrical and mechanical details as well as other related information of EC25 Mini PCIe module To facili...

Страница 9: ...vices on boarding the aircraft if your device offers an Airplane Mode which must be enabled prior to boarding an aircraft Switch off your wireless device when in hospitals clinics or other health care...

Страница 10: ...sion and GNSS functionalities for your applications EC25 Mini PCIe module can be applied in the following fields PDA and Laptop Computer Remote Monitor System Vehicle System Wireless POS System Intell...

Страница 11: ...5 AU Mini PCIe3 Support GSM 850 900 1800 1900MHz Support WCDMA B1 B2 B5 B8 Support LTE FDD B1 B2 B3 B4 B5 B7 B8 B28 Support LTE TDD B40 Support LTE WCDMA receive diversity3 Support GNSS1 Support digit...

Страница 12: ...dBm 2dB for PCS1900 Class E2 27dBm 3dB for GSM850 8 PSK Class E2 27dBm 3dB for GSM900 8 PSK Class E2 26dBm 3dB for DCS1800 8 PSK Class E2 26dBm 3dB for PCS1900 8 PSK Class 3 24dBm 1 3dB for WCDMA band...

Страница 13: ...ace PCM interface GSM HR FR EFR AMR AMR WB WCDMA AMR AMR WB LTE AMR AMR WB Support echo cancellation and noise suppression PCM Interface Support 8 bit A law law and 16 bit linear data formats Support...

Страница 14: ...the specified tolerances When the temperature returns to normal operating temperature levels the module is compliant with 3GPP specification again 2 4 Functional Diagram The following figure shows the...

Страница 15: ...nterfaces definition and application of EC25 Mini PCIe Power supply USIM card interface USB interface UART interface PCM I2C interfaces Control signals Antenna interface 3 2 EC25 Mini PCIe Interface 3...

Страница 16: ...Mini card ground 10 UIM_DATA USIM_DATA IO USIM data signal 11 REFCLK UART_RX DI UART receive data Connect to DTE s TX 12 UIM_CLK USIM_CLK DO USIM clock signal 13 REFCLK UART_TX DO UART transmit data...

Страница 17: ...A IO I2C serial data Require external pull up to 1 8V 33 PETp0 RESERVED Reserved 34 GND GND Mini card ground 35 GND GND Mini card ground 36 USB_D USB_DM IO USB differential data 37 GND GND Mini card g...

Страница 18: ...on Telematics version 3 2 2 Pin Assignment The following figure shows the pin assignment of EC25 Mini PCIe module The top side contains EC25 module and antenna connectors PIN2 PIN52 BOT PIN1 PIN51 TOP...

Страница 19: ...and a bypass capacitor of no less than 470 F with low ESR should be used to prevent the voltage from dropping The following figure shows a reference design of power supply The precision of resistor R...

Страница 20: ...Connector In order to enhance the reliability and availability of the USIM card in your application please follow the criteria below in USIM circuit design Keep layout of USIM card as close to the mod...

Страница 21: ...d sensitive occasion are applied and should be placed close to the USIM card connector 3 5 USB Interface The following table shows the pin definition of USB interface Table 7 Pin Definition of USB Int...

Страница 22: ...ts to the USB connector as close as possible Pay attention to the influence of junction capacitance of ESD protection components on USB data lines Typically the capacitance value should be less than 2...

Страница 23: ...ces that can be applied in audio codec design Table 9 Pin Definition of PCM and I2C Interfaces EC25 Mini PCIe provides one PCM digital interface which supports 8 bit A law and law and also supports 16...

Страница 24: ...PCM_SYNC and 2048kHz PCM_CLK PCM_CLK PCM_SYNC PCM_DOUT MSB LSB MSB 125us 1 2 256 255 PCM_DIN MSB LSB MSB Figure 6 Timing in Primary Mode In auxiliary mode the data is sampled on the falling edge of t...

Страница 25: ...PCM_DOUT PCM_SYNC PCM_CLK I2C_SCL I2C_SDA Codec Module 1 8V 2 2K 2 2K BCLK FS DACIN ADCOUT SCLK SDIN BIAS MIC_BIAS MIC MIC SPKOUT SPKOUT Figure 8 Reference Circuit of PCM Application with Audio Codec...

Страница 26: ...e provides W_DISABLE signal to disable wireless communications through hardware operation The following table shows the radio operational states of the module Please refer to document 2 for related AT...

Страница 27: ...g to the following circuit in order to reduce the current of the LED a resistor must be placed in series with the LED The LED is emitting light when the LED_WWAN output signal is active low LED_WWAN V...

Страница 28: ...a main antenna interface an Rx diversity antenna interface and a GNSS antenna interface And Rx diversity function is enabled by default The following table shows the requirement on main antenna Rx di...

Страница 29: ...ial Released 28 42 The following figure shows the overall sizes of RF connector Figure 13 Dimensions of the RF Connector Unit mm U FL LP serial connectors listed in the following figure can be used to...

Страница 30: ...ini PCIe Power supply requirements I O requirements Current consumption RF characteristics GNSS receiver ESD characteristics 4 2 Power Supply Requirements The input voltage of EC25 Mini PCIe is 3 3V 9...

Страница 31: ...acteristics The following tables show the conducted RF output power and receiving sensitivity of EC25 Mini PCIe module Table 16 EC25 Mini PCIe Conducted RF Output Power Parameter Description Min Max U...

Страница 32: ...dBm 94 3dBm LTE FDD B4 10M 97 5dBm 99 0dBm 101 0dBm 96 3dBm LTE FDD B12 10M 96 5dBm 98 0dBm 101 0dBm 93 3dBm Frequency Primary Diversity SIMO 3GPP SIMO WCDMA B1 110 0dBm 106 7dBm WCDMA B6 110 5dBm 106...

Страница 33: ...ity SIMO 3GPP SIMO GSM900 109 0dBm 102 0dBm DCS1800 109 0dBm 102 0dbm WCDMA B1 110 5dBm 106 7dBm WCDMA B5 110 5dBm 104 7dBm WCDMA B8 110 5dBm 103 7dBm LTE FDD B1 10M 98 0dBm 98 0dBm 101 5dBm 96 3dBm L...

Страница 34: ...gy and configurations A passive antenna should be used for the GNSS engine 4 6 ESD Characteristics The following table shows the ESD characteristics of EC25 Mini PCIe Table 21 ESD Characteristics of E...

Страница 35: ...PA 22 57dBm 752 0 mA WCDMA B5 HSDPA 22 49dBm 616 0 mA WCDMA B5 HSUPA 22 43dBm 637 0 mA LTE data transfer GNSS OFF LTE FDD B2 22 92dBm 977 0 mA LTE FDD B4 23 42dBm 1094 0 mA LTE FDD B12 23 39dBm 847 0...

Страница 36: ...ected 44 0 mA LTE TDD PF 64 USB disconnected 32 0 mA LTE TDD PF 64 USB connected 44 0 mA GPRS data transfer GNSS OFF GSM900 4DL 1UL 33 08dBm 372 0 mA GSM900 3DL 2UL 31 03dBm 626 0 mA GSM900 2DL 3UL 29...

Страница 37: ...HSDPA 22 23dBm 655 0 mA WCDMA B8 HSUPA 21 68dBm 659 0 mA LTE data transfer GNSS OFF LTE FDD B1 23 12dBm 940 0 mA LTE FDD B3 22 75dBm 989 0 mA LTE FDD B5 22 92dBm 962 0 mA LTE FDD B7 23 42dBm 1188 0 mA...

Страница 38: ...3 mA Idle state LTE FDD PF 64 USB disconnected 30 0 mA LTE FDD PF 64 USB connected 42 0 mA LTE data transfer GNSS OFF LTE FDD B4 23 3dBm 873 0 mA LTE FDD B13 22 13dBm 638 0 mA Table 25 GNSS Current C...

Страница 39: ...ased 38 42 5 Dimensions and Packaging 5 1 General Description This chapter mainly describes mechanical dimensions as well as packaging specification of EC25 Mini PCIe module 5 2 Mechanical Dimensions...

Страница 40: ...sign Confidential Released 39 42 5 3 Standard Dimensions of Mini PCI Express The following figure shows the standard dimensions of Mini PCI Express Please refer to document 1 for detailed A and B Figu...

Страница 41: ...s with the directives and standards listed in the document 1 The following figure takes the Molex 679100002 as an example Figure 17 Dimensions of the Mini PCI Express Connector Molex 679100002 Unit mm...

Страница 42: ...5 and EC21 AT Commands Manual 3 Quectel_EC25 EC21_GNSS_AT_Commands_ Manual EC25 and EC21 GNSS AT Commands Manual Abbreviation Description AMR Adaptive Multi rate bps Bits Per Second CS Coding Scheme D...

Страница 43: ...Bits Per Second ME Mobile Equipment Module MIMO Multiple Input Multiple Output MMS Multimedia Messaging Service MO Mobile Originated MT Mobile Terminated PCM Pulse Code Modulation PDU Protocol Data Un...

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