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參數(shù)資料
| 型號： | W7020 |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 30K |
| 代理商： | W7020 |
W7020 Radio Module
Product Brief
March 2001
Features
+
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
+
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
Description
The W7020 radio module is a short-range microwave-
frequency radio transceiver for
Bluetooth
links. It
operates in the globally available 2.4 GHz to 2.5 GHz
ISM band. The radio is based on a bipolar
complementary metal-oxide semiconductor (BiCMOS)
RF integrated circuit. The antenna filter and the RX and
TX baluns are all integrated into the radio subsystem
(see Figure 1).
As illustrated in Figure 2, the radio module requires
only an external antenna connected through a 50
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.
INTEGER N
PLL
LPF
TANK
Radio ASIC
AMPLIFIER
13 MHz
XTAL
CLOCK
GENERATION
TRANSMITTER DATA IN
13 MHz
1 MHz
3.2 kHz
2402 MHz—2495 MHz
0 dBm/–78 dBm
ANTENNA
FILTER
W7020 RADIO SUBSYSTEM
RECEIVER
DATA OUT
EXTERNAL TO MODULE
SWITCH
LNA
φ
Σ
135°
45°
90°
GLPF
LIMITER
DISCRIMINATOR
VCO
BUFFER
RX BALUN
TX BALUN
ANTENNA
UNLOCK PLL
Figure 1. Circuit Block Diagram
*
Bluetooth
is a trademark of Telefonaktiebolaget LM Ericsson.
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