Users Manual

ISM14585-EVB User’s Manual
DOC-DS-14585-EVB-201911-3.6
Confidential Inventek Systems
Page 4
2 OVERVIEW
The Inventek Systems ISM14585-L35 SiP (System in Package), is one of the smallest, lowest
power and most integrated Bluetooth® 5.0 solutions available. The ISM14585-L35 platform
is the first BLE module from Inventek's FLEXiBLE product family. The ISM14585-L35 SiP is
an embedded wireless Bluetooth Low Energy (BLE) IoT radio, based on the Dialog
Semiconductor DA14585 radio SoC (System on Chip). The ISM14585-L35 offers designers
all the benefits of the industry-leading DA14580 technology but with even greater flexibility to
create more advanced applications from the smallest footprints and power budgets.
The ISM14585-L35 is ideal for applications such as remote controls, beacons, connected
sensors and innovative medical devices. Among the new features, the ISM14585-L35
supports Data Packet Length Extension, Link Layer Privacy v1.2, Secure Connections,
Bluetooth low energy and Efficient connectable Advertising.
The ISM14585-L35 integrated Audio Unit (AU) is equipped with a Pulse-Density Modulation
(PDM) interface that can be connected to up to 2 input devices (e.g. MEMS microphones) or
output devices, a PulseCode modulation (PCM) controller which provides an up to 192 kHz
synchronous interface to external audio devices, ISDN circuits and serial data interfaces (I2S)
and a 24-bit Sample Rate Converting unit (SRC) used to convert the sampling rate of audio
samples between the various interfaces. PDM and PCM functionality can be mapped to any
GPIO through the user programmable pin logic. An integrated DMA controller handles all data
transfers between the AU and the RAM providing the CPU with the freedom to cope with other
tasks. Please Note that the AU feature requires a version of the ISM14585 module without
the integrated 8Mb of Flash. The Microphone feature requires I2S or PDM via the SPI
interface.
The ISM14585-L35 SiP provide smarter, more flexible, and even lower power BLE
connectivity with an integrated 32bit CortexTM-M0 (16MHz), processor, an integrated PMU
(Power Management Unit), an integrated PA (Power Amplifier), an integrated 128kB of ROM,
64KB OTP, 1MB SPI Flash as well as a foot print compatible options for an additional
integrated 4Mb, 8Mb, or 16Mb of Flash.
The ISM14585-L35 SiP provides a number of features and standard peripheral interfaces
(see “Features” below), enabling a seamless connection to an embedded design. The
ISM14585-L35 is a very versatile SoC and is ideal for adding Bluetooth low energy to products
like remote controls, proximity tags, beacons, connected medical devices and smart home
nodes. The ISM14585-L35 supports all Bluetooth developments up to and including Bluetooth
5.0.
The ISM14585-L35 also includes 96KB of RAM, the ISM14585-L35 has double the memory
for User applications of its predecessor to take full advantage of the standard’s features. The
ISM14585-L35 also includes an integrated microphone interface for voice support at no