Declaration Letter for Several Models of End Product

FCC ID: QOQGM210P

Cover Letter(s)

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FCCID_4460962

Silicon Laboratories Finland Oy Alberga Business Park, Bertel Jungin aukic 3, FI-02600 Espoo, Finland SILICON LABS TEL: +358 9 435 5060 Federal Communications Commission (Authorization and Evaluation Division) 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT: Attestation of Model Difference FCC: QOQGM21OP Models: BGM2JOP22A, BGM21OP32A, MGM2JOP22A, MGM2JOP32A We, Silicon Laboratories Finland Oy, hereby dectare that the famity of our Bluetooth Low Energy and ZigBee wireless radio modules, includes 4 modeLs with names as listed above. These modets are electricalLy and mechanically identical. The differences between models are described in the table below: Model MGM21OP22A MGM21OP32A BGM21OP22A BGM21OP32A . Low-Power, High-Power, Low-Power, BLE High-Power, BLE , Specification . . Zigbee and/or BLE Zigbee and/or BLE 1. On-board ceramic chip antenna with 1 .S6dBi of gain Antenna Type 2. Reference external dipole antenna with the theoretical gain of 2.l4dBi which can be optionally connected to module’s RE pin The wireless chipset (System-on-Chip, S0C) is the same in all these modules, and it integrates a PA subsystem and a RF switch to route the RF signal to two separate RF ports, one further routed to the module’s integral on-board ceramic chip antenna, and the other routed to a module’s RE pin Hardware Note . for an optional external antenna. Both antennas can be used for a switched diversity implementation with Zigbee-only. There cannot be simultaneous transmission out of the two RE ports, and packets are transmitted only using one protocol at a time. RE maxTX power lOdBm 2OdBm lOdBm 2OdBm Differences: The MGM21 OP modules are for Zigbee + BLE, while the BGM21 OP modules are for BLE only. The Zigbee is disabled in the BGM21 OP by a hardcoded software configuration in the SoC. The 22 and 32 in the model names indicate the power variant, 22 referring to the low-power variants which are allowed to transmit at up to 1 OdBm, based on a purely hardcoded software limitation in the SoC, whereas the 32 indicates the high-power variants for up to 2OdBm. Hardware-wise, the two power variants only differ in their 500 matching networks which are optimized for the related max allowed output power. Should you have any question, feeL free to contact the undersigned directLy. Sincerely yours, Senior Contact: Pasi Rahikkala Job Title: Staff Hardware Engineer, loT Wireless Radio Modules E-mail: pasi.rahikkata@sitabs.com Ptace and date: Espoo, September 11, 2019


Document Created: 2019-09-16 15:49:18
Document Modified: 2019-09-16 15:49:18
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