AM TELECOM Communication Module AML550 Hardware User Guide Rev 0.1 2021.
Limitations of Liability This user guide is provided “as is” and the recipient of the user guide shall endorse all risks arising from its use. In no event shall AM TELECOM has any responsibility for any damages if the product(s) has been improperly stored, installed, used or maintained, or if it has been made under any unauthorized modifications, adjustments and/or repairs to such product(s).
■ Revision History Version Date Draft 2021.04.01 Description Initial release Editor M.
Contents INTRODUCTION ....................................................................................................................... 6 1. SYSTEM SPECIFICATION .................................................................................................... 7 1.1. PHYSICAL FEATURE ........................................................................................ 7 1.2. MODEM SPECIFICATION ................................................................................... 8 1.2.1.
6. RF DESIGN GUIDE............................................................................................................ 29 6.1. ANTENNA RF DESIGN GUIDE .......................................................................... 29 6.2. RF LINE DESIGN GUIDE ................................................................................ 31 7. PCB LAYOUT GUIDE ......................................................................................................... 32 8. SOLDER REFLOW PROFILE .......
Introduction This module is designed with a Qualcomm MDM9207 chipset solution. It supports GSM, UMTS, LTE, GNSS with small size and thin 2.2mm thickness. It will be given a best choice to all customers who want LTE wireless data communication. Any portable devices such as Laptop, Tablet PC and PDA, and various M2M devices can be designed with minimum efforts.
1. System Specification 1.1. Physical feature Item Specification Dimension(*1) 30.0±0.20 (W) x 30.0±0.20 (D) x 2.2±0.15 (H) mm Weight T.B.D Mounting type SMD NOTE(*1): The dimension includes a label thickness Figure 1.
1.2. Modem specification 1.2.1. Modem Frequency specification Technology LTE UMTS Uplink Downlink Band 1 1920 ~ 1980 MHz 2110 ~ 2170 MHz Band 2 1850 ~ 1910 MHz 1930 ~ 1990 MHz Band 3 1710 ~ 1785 MHz 1805 ~ 1880 MHz Band 4 1710 ~ 1755 MHz 2110 ~ 2155 MHz Band 5 824 ~ 849 MHz 869 ~ 894 MHz Band 7 2500 ~ 2570 MHz 2620 ~ 2690 MHz Band 8 880 ~ 915 MHz 925 ~ 960 MHz Band 9 1749.9 ~ 1784.
1.2.3. Environment Specification Item Spec. Storage Temperature -40℃ to + 90℃ Operating Temperature -40℃ to + 85℃ Humidity (Operational) 85% relative humidity, Non-condensing Vibration (Operational) 5 Hz to 500 Hz sinusoidal, 1.
1.3. RF specifications 1.3.1. RX/TX frequency specification - LTE mode 특성 항목 BW DL conf Maximum 1.4MHz NA Output 비고 UL conf Mod RB RB idx QPSK 1.4MHz 1,5 RB Low/ 5MHz 5MHz 1,8 RB High Power 10MHz 10MHz 1,12 RB (Class III) 15MHz 15MHz 1,16 RB 20MHz 20MHz 1,18 RB Minimum 1.4MHz Output Power 5MHz 5MHz 25 RB 10MHz 10MHz 50 RB 15MHz 15MHz 75 RB 20MHz 20MHz 100 RB Frequency Error 1.4MHz NA QPSK QPSK QPSK 1.4MHz 6RB 1.4MHz 6RB 조건 22.0dBm +/- 2.
B5<-94.3 10MHz B7<-94.3 15MHz B8<-93.3 20MHz B12<-93.3 B20<-93.3 Maximum input 10MHz Level 1.3.2. 64QAM QPSK Cat4 50RB 10MHz 50 RB >- 25.7 dBm RX/TX frequency specification - WCDMA mode Item Maximum Output Power (Class III) Specification +23.0 dBm / 3.84 MHz, Minimum Transmit Power < -50 dBm /3.84 MHz Adjacent Channel Leakage > 33 dB @ ±5 MHz, Power Ratio > 43 dB @ ±10 MHz Reference Sensitivity. Level Maximum Input Level 1.3.3. 0 +/- 2dB BER < 0.001 when Îor = -106.7 dBm / 3.
2. Interface Connector 2.1. Pin assignment This figure is the pin arrangement of LGA Pad connected to the product. Figure 2.
2.2.
F3 GND - - Ground F5 GND - - Ground F6 GND - - Ground F7 GND - - Ground F8 GND - - Ground F9 GND - - Ground F10 GND - - Ground F11 GND - - Ground F13 GND - - Ground G2 GND - - Ground G5 GND - - Ground G11 GND - - Ground G13 GND - - Ground G14 GND - - Ground G15 GND - - Ground H1 GND - - Ground H5 GND - - Ground H11 GND - - Ground H15 GND - - Ground I1 GND - - Ground I5 GND - - Ground I11 GND - - Grou
L10 GND - - Ground L11 GND - - Ground M1 GND - - Ground M2 GND - - Ground M4 GND - - Ground M10 GND - - Ground N2 GND - - Ground N3 GND - - Ground N4 GND - - Ground N6 GND - - Ground N8 GND - - Ground N9 GND - - Ground N10 GND - - Ground N12 GND - - Ground N13 GND - - Ground N14 GND - - Ground O1 GND - - Ground O2 GND - - Ground O3 GND - - Ground O5 GND - - Ground O6 GND - - Ground O7 GND - - Ground
Output H13 +1.8V_OUT PO 1.8V 1.8V Output port Power P8 +2.7V_OUT PO 2.7V 2.7V Output port ANT P2 DRX_ANT AI Antenna for LTE bands(Sub) Interface P4 GNSS_ANT AI Antenna for GNSS P12 PRX2_ANT AI,AO Antenna for LTE bands(Main) P14 PRX1_ANT AI,AO Antenna for LTE bands(Main) USB A9 USB_D- B USB data (-) Interface A10 USB_D+ B USB data (+) USIM A6 USIM_PWR PO 1.8V/2.85V USIM Power Interface D3 USIM_DATA B 1.8V/2.85V USIM Data E3 USIM_RESET DO 1.8V/2.
K4 JTAG_SRST_N DI 1.8V JTAG reset for debug, Active low In/out G1 POWER_KEY DI 1.8V Power on / off control (Active high) Interface B2 RESET_KEY DI 1.8V Hardware reset (Active Low) H2 USB_DISABLE DI 1.8V Active low signal to USB_DISABLE M5 READY DO 1.8V The boot sequence completed successfully. L13 /WAKE_UP DO 1.8V HOST Wake Up Signal N5 GNSS_LNA_EN DO 1.8V External GNSS LNA enable. WLAN E15 SDIO_CMD B 1.8V WLAN Command Interface F15 SDIO_CLK B 1.
N/C E2 Reserved(*1) - - - F1 Reserved (*1) - - - F12 Reserved(*1) - - - G12 Reserved(*1) - - - H3 Reserved(*1) - - - H4 Reserved(*1) - - - H12 Reserved (*1) - - - H14 Reserved(*1) - - - I2 Reserved (*1) - - - I3 Reserved(*1) - - - I4 Reserved (*1) - - - J1 Reserved(*1) - - - J2 Reserved (*1) - - - J3 Reserved(*1) - - - J4 Reserved(*1) - - - K1 Reserved (*1) - - - K14 Reserved(*1) - - - K15 Reserved (*1) - - - L
DO : Digital Output from Module PI : Power input into Module PO : Power output from Module 19
3. Modem Interface Description 3.1. Power supply Requirement of Input Voltage is refer to the below table N Item O1 Supply Pin NO VCC Min Typ Max Unit A3, A4 3.4 3.8 4.2 sV O9, 910 3.4 - 4.2 V 1.2 1.8 2.1 V 0 0 0.6 V 1.2 1.8 2.1 V 0 0 0.
3.2. USB Interface This module supports the USB 2.0 Specification. It is used for diagnostic monitoring and data transfer. Differential line (D+,D-) impendence should be designed closely to 90Ω. Pin no. Pin name Pin description Direction A9 USB_D- USB data (-) Bidirectional A10 USB_D+ USB data (+) Bidirectional Figure 3. USB interface circuit 3.3. USIM Interface This module supports UIM interface as the below table. Pin no.
Figure 4. USIM Interface design 3.4. UART Interface UART pins are used to communicate AT-COMMAND and DATA. Software upgrade can be performed thru this UART Direction Pin no.
D15 SDIO_DATA_1 WLAN Data bit 1 I/O Module ↔ Host E14 SDIO_DATA_2 WLAN Data bit 2 I/O Module ↔ Host D14 SDIO_DATA_3 WLAN Data bit 3 I/O Module ↔ Host E15 SDIO_CMD WLAN Command I/O Module ↔ Host Figure 5. WLAN Interface connection 3.6. Ethernet Interface This module supports Ethernet interface as the below table. When using the Ethernet interface, refer to the below table and connect all signal lines to the host. Pin no.
Figure 6. Ethernet Interface Connection 3.7. 3.7.1. In/Out Interface POWER_KEY This pin must keep high for more than1 second to turn on the module, then the module will turn on. Also, It must keep high for more than 3 second to turn off the module, then the module will turn off automatically. Pin no. Pin name G1 POWER_KEY Pin description Power On or Off control Active Low Direction Input Note : an unexpected power shutdown can cause critical damage.
3.7.2. RESET_KEY This pin is for hardware reset of this module. To reset, it must keep low for more than 2.5 seconds and the maximum time is less than 5 seconds. Pin no. Pin name B2 RESET_KEY Pin description Hardware Reset, Active low Internal pulled-up to1.8V Direction Input Figure 8. RESET_KEY Circuit Note : (1) This hardware reset must be designed to be controlled by the host.
3.7.4. USB_DISABLE This pin is used when you do not use the USB function. Pin no. Pin name Pin description H2 USB_DISABLE Direction Active low signal to disable USB Input operation Note: Please do Not Connect, if you do not use this pin. 3.7.5. READY This pin is used to indicate the system is boot-up complete. Pin no. Pin name M5 READY 3.8. Pin description Direction Active high ,boot-up complete Output Debug Interface These pins are designed for software debugging of this product.
3.10. Reserved To use reserved pins, you must inform to the AM Telelcom co.Ltd. Current purpose of reserved pins is as the below table. Pin Pin name Pin description H13 Reserved +1.8V Output Port P8 Reserved +2.
L14 Reserved General Purpose Input Output Port L15 Reserved General Purpose Input Output Port M3 Reserved General Purpose Input Output Port M6 Reserved General Purpose Input Output Port M7 Reserved General Purpose Input Output Port M8 Reserved General Purpose Input Output Port M9 Reserved General Purpose Input Output Port M13 Reserved General Purpose Input Output Port M14 Reserved General Purpose Input Output Port M15 Reserved General Purpose Input Output Port N1 Reserved Gen
4. Current Consumption The current consumption of the module is listed as below table. The listed current consumption is tested when the power supply of module is 3.8 V. Mode Peak current Typ. Unit 1 A 300 mA 770 mA Data Call Condition VCC Band 7 CH BW=10MHz, TX=0dBm Band 7 CH BW=10MHz, TX=22.5dBm 5. RF Design Guide 5.1. Antenna RF Design Guide Please reserve a matching circuit between module and the antenna for antenna tuning.
Module I/F GPS ANT RF Connector GNSS_ANT P4 Module Figure 10.
5.2. RF line Design Guide RF line should be as short as possible with low loss controlled, and impedence of 50ohm. The 50ohm impedance(Z0) of the RF trace is usually determined by the trace width (W), the materials’dielectric constant(Er),the distance between signal layer and reference ground (H), and the clearance between RF trace and ground (D).
6.
7. Solder Reflow Profile e Temperatur ③ ② ① Time Figure 11. Reflow profile graph No Item Temperture Time ① Preheat +150 ~ +180℃ 85 ~ 100sec ② Primary heat Over +220℃ 40 ~ 50sec ③ Peak +238 ~ +245℃ - Cooling down slope 2 ~ 4℃/sec Table 1.
8. Cautions 8.1. Safety precautions This module should be used at authorized places or environments due to frequency jamming possibility while operating. If occur any issues when the module operates at not authorized places or environments, AM TELECOM does not have any responsibility. ① Do not use at life-saving places or areas such as hospitals or medical facilities.
⑪ Do not presses the shield CAN. It can cause electrical short or declining RF performance by the CAN damage. 9. Acronyms Word BW dB dBm Description Band Width A type of (relative) scale that represents the difference of some value as Log An abbreviation for the power ratio in dB of the measured power referenced to one milliwatt (mW).
10. Contact Information ➢ Korea E-mail Sales@amtel.co.kr AM TELECOM Co., Ltd. Address. #608, YatapLeaders bldg., 42, Jangmi-ro, Bundang-gu, Seongnam-si Gyeonggi-do, 463-828, Korea ➢ Japan E-mail amjapan@amtel.co.jp AM Japan Co., Ltd. Address. #201E Shinkasumigaseki Bldg. Lobby floor.
11. OEM/Integrators Installation Guide Important Notice to OEM integrators 1. This module is limited to OEM installation ONLY. 2. This module is limited to installation in mobile or fixed applications, according to Part 2.1091(b). 3. The separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and different antenna configurations 4. For FCC Part 15.
Federal Communication Commission Interference Statement This device complies with Part 15 of the 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. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Industry Canada Statement This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
End Product Labeling This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: “Contains IC: 27086-AML550”.
