Specifications

Shanghai Yancan Electronic Technology Co.,Ltd.
Dual Mode Bluetooth
1. Overview
1.1 Features
 Bluetooth specification V4.2 compliant
 BR 1Mbps, EDR 3Mbps, LE 1Mbps data rate
 LE profiles supported: GATT, HID over GATT (HOGP), Beacon
 Classic Bluetooth profiles supported: SPP, A2DP, HFP 1.6 with WBS, HID, PBAP,
AVRCP, HSP, OBEX
 UART or OTA firmware upgrade
 Serial port command for applications
1.2 Applications
 Bluetooth SPP or BLE to
TTL serial data conversion
 Bluetooth wireless data
transmission
 Medical and industrial
telemetry
 Portable printers
 Barcode scanning devices
 Mobile POS devices
 Smart appliances
 Industrial automation
 Custom Bluetooth audio
devices
1.3 Descriptions
The Module ZEN-BDM90 has a notable merit that its firmware supports concurrent Bluetooth
SPP and GATT connections. It establishes a Bluetooth bidirectional communication channel
which is between the application MCU and the mobile phone through the UART interface. The
application MCU can send a corresponding command to enable the Bluetooth module and to
set it into different modes, then to send and receive communication data at the SPP or GATT
level. The MCU can also read the mode status of the module through serial commands.
This module is designed with Cypress® CYW20706 dual mode Bluetooth 4.2 SoC.
CYW20706 features
96 MHz Cortex M3 core, excellent receiving sensitivity down to -96 dBm (BLE GFSK),
integrated PA to support Class 1 Tx power up to 5.62dBm. These two RF parameters
contribute to its best in class link budget to enable long Bluetooth communication distance
around 100 meters or even farther. This module has a fine tuned inverted-F PCB antenna.
It provides excellent efficiency while keeps small size. This module can be easily integrated in
a product board.
As a dual mode Bluetooth module, it can realize both GATT and SPP connections concurrently,
which provide the best interoperability for various iOS and Android mobile devices. These high
Classic Bluetooth data