PRODUCT SPECIFICATION L297B-SR Wi-Fi Dual-band 2x2 11ac+ Bluetooth 5.0 Combo Module Version:v1.
L297B-SR Module Datasheet Ordering Information Part NO. FGL297BSRX-00 Description NXP88W8997, b/g/n/ac, Wi-Fi+BLE5.0, 2T2R, 13X15mm, SDIO/ UART, PCB version V1.0 Customer: Customer P/N: Signature: Date: Office: 14th floor, Block B, phoenix zhigu, Xixiang Street, Baoan District, Shenzhen Factory: NO.8, Litong RD., Liuyang Economic & Technical Development Zone, Changsha, CHINA TEL:+86-755-2955-8186 FN-LINK TECHNOLOGY LIMITED Website:www.fn-link.
L297B-SR CONTENTS 1. General Description.............................................................................................................. 5 1.1 Introduction......................................................................................................................... 5 1.2 Description.......................................................................................................................... 5 2. Features..................................................................
L297B-SR Revision History Version V1.0 Date Contents of Revision Change 2021/11/19 New version Preparde Checked Approved FC Tzq Qjp FC Tzq Qjp Add Module picture V1.1 2022/01/19 Revision pin definition Add marking description V1.
L297B-SR 1. General Description 1.1 Introduction This document is to specify the product requirements for 802.11a/b/g/n/ac and Bluetooth 5.0 SDIO&UART module. This module based on NXP(MARVELL) 88W8997 chipset that complied with IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac standard from 2.4~2.5GHz and 5.15GHz ~ 5.85GHz, and it also can be used to provide up to 11Mbps for IEEE 802.11b, 54Mbps for IEEE 802.11a and IEEE 802.11g, 150Mbps for 802.11n and 866.7Mbps for IEEE 802.
L297B-SR 2. Features General Compatible with IEEE 802.11a standard to provide wireless 54Mbps data rate Compatible with IEEE 802.11b standard to provide wireless 11Mbps data rate Compatible with IEEE 802.11g standard to provide wireless 54Mbps data rate Compatible with IEEE 802.11n standard to provide wireless 150Mbps data rate Compatible with IEEE 802.11ac standard to provide wireless 866.
L297B-SR 3. Block Diagram 4. General Specification 4.1 2.4GHz WI-FI Specification Feature Description WLAN Standard IEEE 802.11 b/g/n Wi-Fi compliant Frequency Range 2.400 GHz ~ 2.4835 GHz (2.4 GHz ISM Band) Number of Channels 2.4GHz：Ch1 ~ Ch14 Test Items Typical Value EVM 802.11b /11Mbps : 16dBm ± 2 dB EVM -10dB 802.11g /54Mbps : 15dBm ± 2 dB EVM -25dB 802.11n /MCS7 EVM -28dB Output Power : 14dBm ± 2 dB Spectrum Mask Meet with IEEE standard Freq.
L297B-SR Receive Sensitivity (11g,20MHz) @10% PER Receive Sensitivity (11n,20MHz) @10% PER Receive Sensitivity (11n,40MHz) @10% PER - 54Mbps PER @ -74 dBm ≤-65 - MCS=7 PER @ -68 dBm ≤-64 - MCS=7, PER @ -66 dBm ≤-61 4.2 5GHz WI-FI Specification Feature Description WLAN Standard IEEE 802.11a/n/ac, Wi-Fi compliant Frequency Range 4.900 GHz ~ 5.845 GHz (5.0 GHz ISM Band) Number of Channels 5.0GHz：Please see the table1 802.11a/n : 64-QAM,16-QAM, QPSK, BPSK Modulation 802.
L297B-SR 4.3 Bluetooth Specification Feature Description General Specification Bluetooth Standard Bluetooth V5.0 Host Interface UART Frequency Band 2402 MHz ~ 2480 MHz 79 channels for BDR+EDR Number of Channels 40 channels for BLE Modulation GFSK, π/4-DQPSK, 8-DPSK RF Specification Min(dBm) Typical(dBm) BDR Output Power 8 BLE Output Power 8 Min Typical IEEE -86 -70 -86 -70 -80 -70 -90 -70 Sensitivity @ BER=0.1% for GFSK (1Mbps) Sensitivity @ BER=0.
L297B-SR 6. Pin Definition 6.1 Pin Outline < TOP VIEW > 6.2 Pin Definition details NO.
L297B-SR 11 12~14 GND Ground connections NC Floating (NC) Full Power-Down 15 WL_REG_ON I When the host reboot, this pin should VDDIO power down (active low) 16 WL_WAKE_HOST 17 SD_CMD 18 WLAN to wake up HOST VDDIO I/O SDIO command line VDDIO SD_CLK I/O SDIO clock line VDDIO 19 SD_D3 I/O SDIO data line 3 VDDIO 20 SD_D2 I/O SDIO data line 2 VDDIO 21 SD_D0 I/O SDIO data line 0 VDDIO 22 SD_D1 I/O SDIO data line 1 VDDIO 23 GND Ground connections VDDIO 24 NC Floati
L297B-SR 46 NC Floating (NC) 47 NC Floating (NC) 48 NC Floating (NC) 49 HOST_WAKE_BT I Host device to wake up Bluetooth 50 BT_WAKE_HOST O Bluetooth device to wake up host P:POWER I:INPUT O:OUTPUT VDDIO:3.3V 7. Electrical Specifications 7.1 Host Interface Specifications 7.1.1 SDIO Specifications The SDIO host interface pins are powered from the VIO_SD voltage supply 7.1.2 Default Speed, High-Speed Modes SDIO Protocol Timing Diagram—Default Speed Mode (3.
L297B-SR SDIO Timing Data—Default Speed, High-Speed Modes (3.3V)1, 2 NOTE: Over full range of values specified in the Recommended Operating Conditions unless otherwise specified. 7.1.3 SDR12, SDR25, SDR50 Modes (up to 100 MHz) (1.8V) SDIO Protocol Timing Diagram—SDR12, SDR25, SDR50 Modes (up to 100 MHz) (1.
L297B-SR SDIO Timing Data——SDR12, SDR25, SDR50 Modes (up to 100 MHz) (1.8V) NOTE: Over full range of values specified in the Recommended Operating Conditions unless otherwise specified 7.1.4 SDR104 Mode (208 MHz) (1.8V) SDIO Protocol Timing Diagram—SDR104 Mode (208 MHz) SDIO Timing Data—SDR104 Mode (208 MHz) NOTE: Over full range of values specified in the Recommended Operating Conditions unless otherwise specified.
L297B-SR 7.1.5 DDR50 Mode (50 MHz) (1.
L297B-SR SDIO Timing Data—DDR50 Mode (50 MHz) NOTE: Over full range of values specified in the Recommended Operating Conditions unless otherwise specified FN-LINK TECHNOLOGY LIMITED 16
L297B-SR 7.2 High-Speed UART Specifications 7.2.1 UART Timing Diagram UART Timing Data1 7.2.
L297B-SR 8. Size reference 8.1 Module Picture L x W : 13 x 15 (+0.3/-0.1) mm H: 2.3 (±0.2) mm Weight TBD 8.
L297B-SR 8.
L297B-SR 8.
L297B-SR 9. The Key Material List Chipset PCB Crystal Shielding NXP 88W8997 NXP L297B-SR 深绿色,6L,FR4,13x15x0.
L297B-SR 10.
L297B-SR 11. Recommended Reflow Profile Referred to IPC/JEDEC standard.
L297B-SR 12. Package 12.1 Reel A roll of 1500pcs 12.2 Packaging Detail the take-up package Using self-adhesive tape Size of black tape: 24mm*32.6m the cover tape Color of plastic disc: blue FN-LINK TECHNOLOGY LIMITED 24 :21.3mm*32.
L297B-SR NY bag size:460mm*385mm size ：350*350*35mm The packing case size:350*210*370mmg 13. Moisture sensitivity The Modules is a Moisture Sensitive Device level 3, in according with standard IPC/JEDEC J-STD-020, take care all the relatives requirements for using this kind of components.
FCC Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 External Antenna , 4dBi(Provided by the applicant) 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.
2.(1)This device may not cause harmful interference;(2)This device must accept any interference received, including interference that may cause undesiredoperation.Note: 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 againstharmful interference in a residential installation.
External antenna specification Antenna manufacturer：RTANT COMMUNICATIONS co.,LTD Building E, Shalong Ludlang Industrial Innovation Park, Shatang Industrial Zone, Houjie Town, Dongguan City antenna model：External Antenna Antenna Gain：4dBi Please refer to the chart below for PCB size of RF line terminal.
------------------------------------------------------ The line between the External antenna and the BT module must be 50 ohm.
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