FCC ID: 2AJVQ-7668AUC Wireless Module

Qingdao Intelligent & Precise Electronics Co., Ltd ZDGF7668AU-C User Manual Product NameIEEE 802.11 a/b/g/n/ac 2.4GHz+5GHz 2T2R, Bluetooth 5.0 USB Module Model ZDGF7668AU-C 1. Introduction Thank you for using the Wi-Fi module product provided by Qingdao Intelligent &Precise Electronics Co., Ltd. Before use, please read this user manual carefully. Please follow the technical specifications when using the module in your design and develop activities. Qingdao Intelligent &Precise Electronics Co., Ltd has the right to change the contents of this manual in accordance with the needs of the technical development. FCC & IC application:

This device complies with Part 15 of the FCC Rules / Industry Canada licence-exempt RSS standard(s). 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. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. The device for operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems. Les dispositifs fonctionnant dans la bande de 5 150 5 250 MHz sont rservs uniquement pour une utilisation l'intrieur afin de rduire les risques de brouillage prjudiciable aux systmes de satellites mobiles utilisant les mmes canaux. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 1 MPE Requirements To satisfy FCC / IC RF exposure requirements, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not recommended. Les antennes installes doivent tre situes de facon ce que la population ne puisse y tre expose une distance de moin de 20 cm. Installer les antennes de facon ce que le personnel ne puisse approcher 20 cm ou moins de la position centrale de l antenne. La FCC des ltats-unis stipule que cet appareil doit tre en tout temps loign dau moins 20 cm des personnes pendant son functionnement. Region Selection Limited by local law regulations, version for North America does not have region selection option. Label Host labeling requirement: Contains transmitter module FCC ID: 2AJVQ-7668AUC. Host labeling requirement: Contains transmitter module IC: 22470- 7668AUC. 2Product Information 2.1 Product Information ZDGF7668AU-C Wi-Fi USB module is a wireless signal module device work at 2.4GHz (2.400 ~ 2.4835GHz)/5GHz

(5.150 ~ 5.85GHz). ZDGF7668AU-C comply with IEEE 802.11a802.11b802.11 g802.11 n and 802.11 ac standard. It supports up to 867Mbps physical layer transmitting rate. ZDGF7668AU-C support USB 2.0, which has up to 480Mbps data rate. ZDGF7668AU-C also support Bluetooth specification 2.1+EDRBluetooth 4.2 Low Energy and Bluetooth 5.0. ZDGF7668AU-C has 2T2R structurehas two onboard PIFA Antenna. It could provide stable wireless link with high throughput. ZDGF7668AU-C is a wireless signal module. It could transmit and receive Wi-Fi wireless signal device without radar detection. It is widely used to multi-media device, such as smart TV. Equipped with ZDGF7668AU-C, a smart TV could access to Wireless Local Network, which is also called WLAN or WIFI network. ZDGF7668AU-C helps multi-media device achieve to send & receive data package in a wireless way. 2.2 Feature IEEE standardIEEE 802.11a/b/g/n/ac client device without radar detection Bluetooth 5.0 operating Frequency 2.4GHz/5 GHz 2 support up to 867Mbps 2T2R mode Support 20MHz, 40MHz, 80MHz in 5GHz band, and 20MHz, 40MHz band width in 2.4GHz band. support USB 2.0 high data rate mode,10-pin interface support WFA/ WPA/WPA2 /WPS2.0/WAPI security RoH MAC /baseband/RF MT7668AU 3. Product Specification 3.1 Parameter WLAN Standard IEEE802.11a/b/g/n/ac Data Interface USB2.0 WLAN Modulation Mode WLAN Working Frequency WLAN Receiver Sensitivity WIFI:

802.11b: CCK, DQPSK, DBPSK 802.11a, 802.11g: 64QAM, 16QAM, QPSK, BPSK 802.11n: 64QAM, 16QAM, QPSK, BPSK 802.11ac: 256QAM, 64QAM, 16QAM, QPSK, BPSK 2.4G: 2400-2483.5MHz;

5G: 5150-5350MHz, 5470-5850MHz. 11b @ 11Mbps: (Max.): -84dBm, (Typical): -87dBm (PER<8%) 11g @ 54Mbps: (Max.): -69dBm, (Typical): -77dBm (PER<10%) 11n @ MCS7 (2.4g HT20): (Max.): -67dBm, (Typical): -73dBm (PER<10%) 11n @ MCS7 (2.4g HT40): (Max.): -64dBm, (Typical): -68dBm (PER<10%) 11a @ 54Mbps: (5g): -69dBm, (Typical): -77dBm (PER<10%) 11n @ MCS7 (5g HT20): (Max.): -67dBm, (Typical): -73dBm (PER<10%) 11n @ MCS7 (5g HT40): (Max.): -64dBm, (Typical): --69dBm (PER<10%) 11ac @ MCS9 (5g HT80): (Max.): -51dBm, (Typical): -58dBm (PER<10%) WLAN Antenna type Two onboard PIFA antennas WLAN Antenna Gain BT Standard 2.4G: Ant0:1.91dBi (MAX), Ant1:1.31dBi (MAX) 5G: Ant0:3.52dBi (MAX), Ant1:3.44dBi (MAX) BT 2.1+EDRBT 3.0+HSBT 4.2 BLE BT5.0 BT Working Frequency 2400-2483.5MHz BT Modulation Mode GFSK, /4-DQPSK, 8-DPSK BT Antenna Gain Working Voltage Working Temperature Storage Temperature 0.13dBi (MAX) 5V10% I/O supply voltage

-10~+70

-40~+125 3 4. Hardware information 4.1 structure dimension (Unit: mm) PCB Material: FR-4Surface treatment: OSP. Appearance Dimension (mm): 70 (+/- 0.3)45(+/- 0.3) PCB thickness: 1.6mm (+/-0.15mm). Antenna Height10.0mm (+/-0.15mm). 4.2 PIN definition 1 2 3 4 5 6 7 8 9 VCC VCC GND USBDM NC USBDP VCC VCC GND USB D-

NC USB D+

WIFI_DEV_WAKE WIFI Wake Up Host GND GND WIFI_REG_ON DCDC enable 10 RST reset 4.3 Block Diagram BLOCK DIAGRAM 4 USB 2.0XP1ConnectorDC-DC ConverterU2MCUMT7668AUU15V 3.3V40MHzXTAL12.4G TX0/RX0 Antenna ANT0 Antenna ANT15G TX0/RX0IPD2.4G TX1/RX15G TX1/RX1DiplexerBTTX/RX Antenna BT-ANT2400-2483.5MHz5150-5350 MHz, 5470-5850 MHz.2400-2483.5MHz2400-2483.5MHz5150-5350 MHz, 5470-5850 MHz.F2F1 5 EU single contact point Hisense Czech (Manufacture) s.r.o. U Nov Hospody 1164/4, 301 00 Plze , Czech Republic. 6 Manufactures postal address No.218, Qianwangang Road, Qingdao Economic & Technological Development Zone, Shandong, China 7 Importers name & address Hisense Czech (Manufacture) s.r.o. U Nov Hospody 1164/4, 301 00 Plze, Czech Republic. 5 8. The requirement for KDB 996369 D03:

8.1 List of applicable FCC rules FCC Part 15. 247 and FCC Part 15.407. 8.2 Summarize the specific operational use conditions None 8.3 Limited module procedures The module is a single module, so this requirement is not applicable to the product. 8.4 Trace antenna designs The module uses the permanent PIFA antenna, so this requirement is not applicable to the product. 8.5 RF exposure considerations The host device manufacturer should confirm that a separation distance of 20 cm or more should be maintained between the antenna of this host device and persons during the host device operation. 8.6 Antennas For Bluetooth: PIFA antenna, 0.13dBi For 2.4G wifi: Ant0: 1.91dBi, Ant1: 1.31dBi 5G wifi: Ant0: 3.52dBi, Ant1:3.44dBi 8.7 Label and compliance information If this certified module is installed inside the host device, then the outside of the host must be labeled with Contains FCC ID: 2AJVQ-7668AUC and IC: 22470- 7668AUC. 8.8 Information on test modes and additional testing requirements The host manufacturer can use the software of Combo Tool to make the Bluetooth transmit continuously, and the software of QA Tool to make the wifi transmit continuously. 8.9 Additional testing, Part 15 Subpart B disclaimer The module only complies with the FCC Part 15.247 and FCC 15.407. If the module is installed in the host device, the host manufacturer is responsible for the compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. For example, if the host manufacturer markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the host manufacturer shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. 6

FCC ID: 2AJVQ-7668AUC The FCC ID: 2AJVQ-7668AUC is about to print on the bottom layer of the module. IC: 22470-7668AUC The IC: 22470-7668AUC is about to print on the bottom layer of the module. CE LOGO:

Qingdao Intelligent&Precise Electronics Co., Ltd No.218, Qianwangang Road, Qingdao Economic&Technological Development Zone, Shandong, China. Tel: 86-010-6666666 Request for Class II Permissive Change Data: February 8, 2021 FCC ID: 2AJVQ-7668AUC Original Grant date: 5/23/2019 TO: Federal Communication Commission Please be notified that we, the undersigned, Qingdao Intelligent&Precise Electronics Co., Ltd declare that the reasons for this Class II permissive change are as below:

1. Add another factorys WIFI antenna duplexer. Qingdao Intelligent&Precise Electronics Co., Ltd No.218, Qianwangang Road, Qingdao Economic&Technological Development Zone, Shandong, China. Tel: 86-010-6666666 The antenna gain and antenna type are same as the original one Antenna type: PIFA antenna Antenna 0: 1.91dBi, Antenna 1: 1.31dBi Antenna 0: 3.52dBi, Antenna 1: 3.44dBi Antenna gain 2.4GHz 5GHz Thank you. Sincerely, Caifeng Li / signature Qingdao Intelligent&Precise Electronics Co., Ltd Tel: 86-0532-80879444 Email: licaifeng@hisense.com

Qingdao Intelligent&Precise Electronics Co.,Ltd Authority to Act as Agent Date: _October 20, 2020__ American Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 To Whom It May Concern:

______Intertek Testing Services Shanghai______ is authorized to act on our behalf, until otherwise notified, for applications to American Certification Body, Inc. (ACB). We certify that we are not 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. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Expiration Date: ____ October 20, 2021____

(Signature1) _______ Quality engineer____________________ ________________________ Caifeng Li By:

Title:

On behalf of: __ Qingdao Intelligent&Precise Electronics Co.,Ltd ________________________ Telephone:

______86 532 80879444____________________

(Print name)

(Company Name) 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Qingdao Intelligent&Precise Electronics Co.,Ltd Declaration Letter We Qingdao Intelligent&Precise Electronics Co.,Ltd hereby declare that the product Wireless Module is not capable of operating with channel 12 and 13 in regions of US and Canada. Versions of the product available for import and sale in the US and Canada will not operate on channels 12 and 13. It will not be possible for users and configure these channels in the US and Canada version.

(Signature1)

(Print name) By: ______________________ Caifeng Li Title: Quality Engineer________ On behalf of:

Telephone: ______86 532 80879444____________________ Qingdao Intelligent&Precise Electronics Co.,Ltd _________

(Company Name) 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Qingdao Intelligent&Precise Electronics Co.,Ltd Request for Confidentiality Date: __February 26, 2019____ Subject: Confidentiality Request for: 2AJVQ-7668AUC Pursuant to FCC 47 CFR 0.457(d) and 0.459 and IC RSP-100, Section 9.4, the applicant requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent Permanent *1 Permanent Permanent Permanent Permanent Permanent *3 Exhibit Block Diagrams External Photos Internal Photos Operation Description/Theory of Operation Parts List & Placement/BOM Tune-Up Procedure Schematics Test Setup Photos Users Manual ____ Qingdao Intelligent&Precise Electronics Co.,Ltd ____ has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of ___(specify number of days not to exceed 180)2___ days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify ACB in the event information regarding the product or the product is made available to the public before the requested period has expired. ACB will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. NOTE for Industry Canada Applications:

IC currently only distinguishes Permanent Confidentiality exhibits as shown above. Short Term confidentiality is not considered applicable to IC applications. Sincerely, By:

details. __________________________

(Signature/Title3) _______ Caifeng Li__________________

(Print name) 1 - The asterisked items (*) require further information to be provided to ACB before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 and the specific Document link for D01 found at:

https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. 2 - Please refer to http://acbcert.com/documents/misc-docs/Memo-Short-Term-Vs-Standard-Confidentiality.pdf for complete 3 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Qingdao Intelligent&Precise Electronics Co., Ltd No.218, Qianwangang Road, Qingdao Economic&Technological Development Zone, Shandong, China. RE FCC ID: 2AJVQ-7668AUC To the certification reviewer:

We are hereby applying for full modular approval of the above-referenced FCC ID, based on compliance with all of the criteria as detailed below. Part 15 Unlicensed Single Modular Transmitter Approval Justification per 15.212 Requirement per 15.212 reference

(i)

(v)

(ii)

(iv)

(iii) inputs (if such The radio elements of the modular transmitter must have their own RF shielding. The modular transmitter must have buffered modulation/data inputs are provided. The modular transmitter must have its own power supply regulation. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with Part 15 parameters. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module.

(vii) The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization.

(vi)

(viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Sincerely,

[signature]

[name] Caifeng Li

[title] Quality Engineer Shielding is provided by a metal cover over the circuitry. All modulation and data inputs are buffered by circuitry on the transmitter chip U1, as is shown in the schematic. Power supply regulation is provided by circuitry on the transmitter chip U2, as is shown in the schematic. The antenna is permanently attached. Testing was performed in a stand-alone configuration, as shown in the test setup photos. The module is labeled with its own FCC ID number. Please refer to Label. If the FCC ID is not visible when the module is installed inside another device, than the device should label as below:

Contains transmitter module FCC ID:2AJVQ-7668AUC The module complies with this requirement. Please refer to user manual. The module complies with this requirement. Please refer to MPE report.