www.szttk.com SHENZHEN TTK TECHNOLGY CO.LTD Add:NanYuan Commerical Bldg, 8F,MinZhi LongHua Town,BaoAn,District,ShenZhen Email:TTK@szttk.com http:www.szttk.com Tel:0755-89484443 Fax:0755-89484040 BTM-35 BTM-35 Bluetooth V4.0 Product Name version Product development Department LI YI Prepared By Caoshiyi auditor Chenshengqi Approved By Tel:0755-89484441 1 DATE 2013-7-15 2013-7-15 2013-7-15 http:www.szttk.
Bluetooth Audio Module BTM-35 BTM-35 DATA SHEET 07 Nov 201５ ＰＣＢ Version ３.0 SHENZHEN TTK TECHNOLOGY CO.,LTD. Shenzhen TTK Technology CO.,LTD TEL：0755-89484041 FAX：0755-89484040 2.
Bluetooth Audio Module BTM-35 TABLE OF CONTENTS 1.0 Block Diagram....................................................................................................... 5 2.0 Electrical Characteristics....................................................................................... 6 3.0 Device Terminal Functions.................................................................................... 8 4.0 Example Application Schematic...............................................................
Bluetooth Audio Module DESCRIPTION: BTM-35 FEATURES: BTM-35 is the latest generation of Bluetooth ·Plug n' Play Bluetooth Solution for Stereo Module. It provides highest level of integration Audio Solutions With integrated 2.4GHz radio, DSP, battery ·80MHz RISC MCU and 80MIPS Kalimba DSP Charger, stereo codec, and antenna ready. ·Voice recognition support for answering a call Mono and stereo audio applications. Enabled hands-free use BTM-35 is also ready to support the latest ·Bluetooth 4.
Bluetooth Audio Module BTM-35 REVISION HISTORY Version Comment Custom Date 1.0 Preliminary Datasheet zuoguoqiang 11/2013 Shenzhen TTK Technology CO.,LTD TEL：0755-89484041 FAX：0755-89484040 5.
Bluetooth Audio Module 1.0 BTM-35 Block Diagram Serial Flash/ SPI/I2C 2.4GHz Radio RAM XTAL 26MHz EEPROM USB ROM I/O Audio in/out MCU PIO Kalimba DSP PM/char ger Charger in 5V Debug SPI Battery 3.6V-4.2V 。Bluetooth Version 4.0 specification 。Operating Frequency 2.4GHz-2.48GHz ISM band 。Modulation GFSK(Gaussian Frequency Shift Keying) 。Transmit Power ≤4dBm, Class 2 。Sensitivity ≤-81dBm at 0.1% BER 。Security features Authentication and encryption 。Support profiles Hands-Free Profile v1.
Bluetooth Audio Module 2.0 BTM-35 Electrical Characteristics Recommended operating conditions Min Typ Max Unit Operating temperature -20 20 70 ℃ VDD_BAT 3.0 3.8 4.2 V VDD_CHG 4.5 5 6.5 V VDD_IO 1.7 1.8 1.95 V Table 1:Recommended operating conditions Battery charger Charger Mode(BAT_P rising to 4.2V) Min Typ Max Unit Supply current(a) -- 4.5 6 mA Battery trickle charge current(b) -- 4 -- mA Maximum battery fast charge Headroom(e) > 0.
Bluetooth Audio Module Trickle charge voltage threshold Float voltage (with correct trim value set), VFLOAT (f) Float voltage trim step size(f) Battery charge termination current, % of fast charge current BTM-35 -- 2.9 -- V 4.10 4.15 4.
Bluetooth Audio Module BTM-35 MUTE BTM-35 can output a high level to control the amplifier mute. When bluetooth normal working, Module output high level to control the amplifier open. Standby, Module output low level to control the amplifier off. Figure 3: BTM-68E Mute contorl circuitry Shenzhen TTK Technology CO.,LTD TEL：0755-89484041 FAX：0755-89484040 10.
Bluetooth Audio Module BTM-35 .3.
Bluetooth Audio Module BTM-35E 11 1V8 1.8V POWER Positive supply for 1.
Bluetooth Audio Module 5.0 BTM-35E Package Dimensions Unit: mm Shenzhen TTK Technology CO.,LTD TEL：0755-89484041 FAX：0755-89484040 14.
Bluetooth Audio Module 6.0 BTM-35 Layout Guidelines 6.0.1 Audio Layout Route audio lines as differential pairs. The positive and negative signals should run parallel and close to each other until they are converted to single-ended signals. Use dedicated audio ground plane for entire audio section. 6.0.2 Antenna Design Do not place GND plane or any metal directly under the antenna of BTM-35.
Bluetooth Audio Module 7.0 BTM-35 Contact Information Sales : ttk@szttk.com Technical Support: chenxl@szttk.com liy@szttk.com Address: 8th Floor,Southland Building,minzhi hongshan , Mei long Road, long hua Town, Bao'an District,shenzhen Website: WWW.szttk.com Shenzhen TTK Technology CO.,LTD TEL：0755-89484041 FAX：0755-89484040 16.
FCC WARNING FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. 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.
antenna or transmitter. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. The final end product must be labelled in a visible area with the following: “Contains Transmitter Module 2A6OP-BTM35” The module can be used for Bluetooth Module with 0dBi antenna.
Requirement per KDB996369 D03 2.2 List of applicable FCC rules List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list compliance to unintentional-radiator rules (Part 15 Subpart B) since that is not a condition of a module grant that is extended to a host manufacturer. See alsoSection 2.
module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval. This limited module procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host. The module manufacturer must state how control of the product into which the modular transmitter will be installed will be maintained such that full compliance of the product is always ensured.
The module manufacturers shall provide a list of acceptable unique connectors. Explanation: The EUT has one PCB antenna, the antenna can't be replaced by other authorized antennas. 2.8 Label and compliance information Grantees are responsible for the continued compliance of their modules to the FCC rules. This includes advising host product manufacturers that they need to provide a physical or e-label stating “Contains FCC ID” with their finished product.
as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. Explanation: The module without unintentional-radiator digital circuity, so the module does not require an evaluation by FCC Part 15 Subpart B. The host shoule be evaluated by the FCC Subpart B.
