User Manual

Advanc
e
Information

2015 Microchip Technology Inc.
page
4
BM78SPPS5M
C2
, RN4678
1.0 DEVICE OVERVIEW
The BM78 is a complete, fully certified, embedded 2.4 GHz Bluetooth® version 4.0
(BR/EDR/LE) wireless IC. It incorporates an on-board Bluetooth stack, cryptographic accelerator,
power management subsystem, 2.4 GHz transceiver, and RF power amplifier (see Figure 1). With
the BM78, designers can embed Bluetooth functionality rapidly into virtually any device.
The BM78 provides cost and time-to-market savings as a self-contained Bluetooth solution.
The IC has been designed to provide integrators with a simple Bluetooth solution that features:
• Ease of integration and programming
• Vastly reduced development time
• Minimum system cost
• Interoperability with Bluetooth hosts
• Maximum value in a range of applications
The BM78 can independently maintain a low-power wireless connection. Low-power usage
and flexible power management maximize the IC’s lifetime in battery-operated devices. A wide
operating temperature range allows use in indoor and outdoor environments (industrial
temperature range).
The BM78 module comes in two varieties. The BM78SPPS3MC2 is a complete, fully
regulatory certified module with integral ceramic chip antenna and shield. The BM78SPP03MC2 is
a lower cost alternative with external antenna and no shield. The integrator is responsible for the
antenna, antenna matching, and regulatory certifications.
The BM78 is a small, compact, surface mount module with castellated pads for easy and
reliable host PCB mounting. The module is compatible with standard pick-and-place equipment.
TABLE 1‐1: BM78 MODULE FAMILY TYPES
Device
Antenna
Shield
Regulatory
C
e
rtifications
BM7
8
SPPS
5N
C
2
Integral
cer
a
mi
c
ch
i
p
Yes
FCC,
IC,
CE,
KCC,
NCC,
Japan
BM7
8
SPP0
5N
C2
External
No
NO
FIGURE 1: Block Diagram