ml7050la Oki Semiconductor, ml7050la Datasheet - Page 14

• Manufacturer Part Number: ml7050la
• Description: Bluetooth Rf Transceiver Ic
• Manufacturer: Oki Semiconductor

SYSTEM OVERVIEW
Together, RF (ML7050LA) and baseband (ML70511LA) devices form a complete hardware solution optimized for
low system cost, small form factor, and reduced power consumption wireless applications. The ML70511LA
baseband IC controls the ML7050LA frequency selection, tuning characteristics, and control functions through writing
to internal registers. ML7050LA can then read-back the register information to ML70511LA insuring proper modes of
operation. The communication between the devices occurs on Oki’s proprietary, low pin count serial interface. The
connection between a host controller or processor and the baseband device is implemented via USB (version 1.1) or
UART.
Power Supply
The analog power supply (V
Vdd_LNA, Vdd_VCO, Vdd_PLL, Vdd_IF, Vdd_IRM and Vdd_IRM_LO). A separate digital power supply voltage is
required by the digital section. Each of the analog power supply voltage should be supplied from regulated voltage
source and should be low-frequency de-coupled by external blocking capacitors.
Ground
In order to minimize electrical noise and other interference, the ground plane should be distributed with low impedance
characteristics including underneath the ML7050LA. Connect all GND pins to the ground plane.
1 Oki Semiconductor
Antenna
2.4 to 2.5 GHz
Band-pass
Filter
~
~ ~
DD
ML7050LA
) voltage is connected to pins serving each analog functional blocks (Vdd_PA,
GND
V
DD
Control
Signal
OSC
RXD
TXD
14/16
ML70511LA
V
GND
UART
DD
USB
or
UART
USB
or
FEDL7050LA-02
System
ML7050LA
Host