links. It
ISM band. The radio is based on a bipolar
RF integrated circuit. The antenna filter and the RX and
(see Figure 1).
鈩?/div>
characteristic impedance line and a 13 MHz crystal or
reference clock signal to enable
Bluetooth
radio
communication links. It interfaces to a baseband
controller through the serial interface bus and separate
strobe signals to create a complete
Bluetooth
hardware
solution.
Complete RF solution, compliant with
Bluetooth*
specification version 1.0B
Highly integrated module including RF transceiver IC,
antenna filter, and transmit/receive baluns
0 dBm, typical, output power at 50
鈩?/div>
2.7 V operation enabling long battery life
3.2 kHz low-power, idle-mode clock
Digital receive signal strength indicator (RSSI)
Small-outline module ceramic land grid array
(MCLGA) package (9.7 mm x 14.0 mm x 1.6 mm)
Evaluation kit available, including W7020 evaluation
board, USB transceiver interface board, and PC
control software
+
+
+
+
+
+
+
RX BALUN
LNA
2402 MHz鈥?495 MHz
0 dBm/鈥?8 dBm
ANTENNA
FILTER
ANTENNA
鈥?/div>
90擄
135擄
LIMITER
蠁
45擄
危
RECEIVER
DATA OUT
DISCRIMINATOR
SWITCH
Radio ASIC
TX
AMPLIFIER
VCO
BUFFER
13 MHz
CLOCK
GENERATION
1 MHz
3.2 kHz
TX BALUN
GLPF
W7020 RADIO SUBSYSTEM
TANK
INTEGER N
PLL
LPF
13 MHz
XTAL
鈥?/div>
鈥?EXTERNAL TO MODULE
TRANSMITTER DATA IN
UNLOCK PLL
Figure 1. Circuit Block Diagram
*Bluetooth is a trademark of Telefonaktiebolaget LM Ericsson.
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