FCC ID: 2ACIJ71511 Bluetooth low energy wireless module

3 2 Cl 2.2 HS) QIN: NZ Label MK71511 M/N:MK71511 MK71511A M/N:MK71511A X<FCC/IC CODE FCC ID : 2ACIJ71511 IC: 20971-71511

ROHM GROUP LAPIS SEMICONDUCTOR FCC Agency Authorization Date: April 7, 2020 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046-1609 Letter of Agency To Whom It May Concern:

|, an officer of LAPIS Semiconductor Co.,Ltd., do hereby authorize, until further notice, Arvin Ho of TUV Rheinland Taiwan Ltd., 11F, No. 758, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan to act on our behalf in dealings before the Federal Communications Commission with respect to all matters relating to equipment authorizations under 47CFR. This authorization includes, but is not limited to, signing of Form 731.

| certify that no party (as defined in 47 CFR 1:2002) to this application, including myself, is subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Agency Agreement Expiration Date: Dec 1, 2020 Sincerely, By: lakanori Kamivama Takanori Kamiyama

(Signature) / (Print Name) Title: Group Leader On behalf of: | LAPIS Semiconductor Co.,Ltd. 2-4-8 Shinyokohama, Kouhoku-ku, Yokohama, 222-8575 Japan Telephone: +81 45 476 9294 LAPIS Semiconductor Co.,Ltd. ROHM 2-4-8 Shinyokohama, Kouhoku-ku, Yokohama, 222-8575, JAPAN Beene tared TEL +81-45-476-9212 http:/Awww.lapis-semi.com/

ROHM GROUP LAPIS SEMICONDUCTOR FCC Letter for Modular Approval Date:

April 7, 2020 Request for Transmitter Modular Approval Model: MK71511, MK71511A FCC ID: 2ACIJ71511 The modular transmitter complies with the following requirements in FCC Part 15 Section 15.212 for Modular Approval:

Transmitter Module Characteristics:

Requirement Comment 1. | Yes | The radio element of the modular transmitter must RF circuits are shielded by metal. have its own shielding. 2. | Yes | The modular transmitter must have buffered The modular transmitter has modulation/data inputs (if such inputs are provided). | buffered modulation/data inputs. 3. | Yes | The modular transmitter must have its own power The modular transmitter has its supply regulation. own power supply regulation. 4. | Yes | The modular transmitter must comply with the The antenna is PCB pattern antenna requirements of FCC 15.203 and antenna which is fixed on the 15.204(c). module. 5. | Yes | The modular transmitter must be tested in a stand- The modular transmitter was alone configuration, i.e. the module must not be tested in a stand-alone inside another device during testing. configuration. Refer to the test report for more details. 6. | Yes | The modular transmitter must be labeled with its The modular transmitter is own FCC ID. If the FCC ID is not visible when the labeled with its own FCC ID. As it module is installed inside another device, then the is not visible when the module is outside of the device into which the module is installed into the host device, the installed must also display a label referring to the label of the host device will bear enclosed module. the wording Contains FCC ID:

2ACIS71511. 7. | Yes | The modular transmitter must comply with any The modular transmitter is specific rules or operating requirements that compliant with all applicable FCC ordinarily apply to a complete transmitter and the rules, Detailed instructions are manufacturer must provide adequate instructions given in the user manual. along with the module to explain any such requirements. 8. | Yes | The modular transmitter must comply with any The modular transmitter complies applicable RF exposure requirements. with RF exposure requirements. Refer to the RF exposure statement for more details. ef a | / f i By: faranor) Kamiyana Takanori Kamiyama

: (Signature) / (Print Name) Title: Group Leader LAPIS Semiconductor Co.,Ltd. 2-4-8 Shinyokohama, Kouhoku-ku, Yokohama, 222-8575, JAPAN TEL +81-45-476-9212 http://www. lapis-semi.com/

ROHM SEMICONDUCTOR

ROHM GROUP LAPIS SEMICONDUCTOR FCC Request for Confidentiality Date: April 7, 2020 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046-1609 Confidentiality Request To Whom It May Concern:

This letter is to comply with 47 CFR 0.457(d)(2) and 0.459 pertaining to confidential material. LAPIS Semiconductor Co.,Ltd. requests that the following documents regarding this submission for 2ACIJ71511 be kept permanently confidential:

Exhibit Type Schematics Block Diagram Technical Description / Parts List The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to Public Notice DA04-1705 of June 15, 2004 of the Commission's policy, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type Internal Photos External Photos Test Set-up Photos User Manual Time of confidentiality: 180 days Sincerely, wre [7 . By: | akanori ICamiyam q Takanori Kamiyama

(Signature) / (Print Name) Title: | Group Leader LAPIS Semiconductor Co.,Ltd. ROHM 2-4-8 Shinyokohama, Kouhoku-ku, Yokohama, 222-8575, JAPAN SEMICONDUCTOR TEL +81-45-476-9212 http://www. lapis-semi.com/

ROHM GROUP LAPIS SEMICONDUCTOR Letter for Model Differences Date: April 22, 2020 Letter for Model Differences Models: MK71511, MK71511A FCC ID: 2ACIJ71511 IC: 20971-71511 The differences between the models listed here above are the following:

1. MK71511 has a 32.768kHz crystal oscillator 2. MK71511A does not have a 32.768kHz crystal oscillator The clock (32.768kHz) is for system sleep, during which the module does not transmit anything. Therefore, both models are electrically identical, the crystal oscillator Y2 (32.768kHz) does not affect the RF performance, and MK71511A contributes to cost reduction. Other than the above mentioned differences, these models are electrically identical. For further details, refer to the submitted exhibits, such as Operational Description, Block Diagram, Circuit Diagrams, Parts List, External Photographs and Internal Photographs. Sincerely, By: AAaAnivyaMg Takanori Kamiyama

(Signature) (Print Name) Title: Group Leader LAPIS Semiconductor Co.,Ltd. ROHM 2-4-8 Shinyokohama, Kouhoku-ku, Yokohama, 222-8575, JAPAN Pret ents TEL +81-45-476-9212 htto://www.lapis-semi.com/