參數(shù)資料
型號: MC72000
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Integrated Bluetooth Radio
中文描述: 集成藍(lán)牙無線
文件頁數(shù): 141/156頁
文件大?。?/td> 1782K
代理商: MC72000
Applications Information
MOTOROLA
MC72000
Advance Information Data Sheet
Go to: www.freescale.com
141
Figure 88. PIN Implementation of Antenna Switch
10.6 Class 1 Operation
Class 1 Operation can be realized by the MC72000 with the use of an external power amplifier (PA) such
as the MRFIC2408 as shown in Figure 40. During a transmit cycle, EPAEN drives the external PA Bias
Enable. Figure 38 shows the transmitter warm up sequence for this mode of operation. The external PA is
required to be fully powered within 5 ms. It is recommended that the antenna switch be set to the TX
position before the internal PA is enabled. This option minimizes frequency pulling of the VCO, which
may appear as splatter. The power level of the external PA can be digitally controlled through the use of a
digital-to-analog converter (EPADAC) internal to the MC72000. To access the DAC capability, External
PA DAC Enable (R11/7), must be set to one. This line is generally decoupled with a small capacitor value
(H 0.1 ìF(xiàn)). Approximately 44 ìs is available to fully charge this capacitor (see Figure 30).
10.7 Manufacturer Code
The format of the device identification code is shown in Figure 89. The 32-bit value is defined in the IEEE
1149.1 specification. This is also known as the Bluetooth address.
Figure 89. Manufacturer Identification Code
PA
LNA
Balun
Band Pass
Filter
Antenna
λ
/4
Pin 1
Pin 9
Pin 6
Pin 8
GPO
Manufacturer
Version
Number
Manufacturer Part Number
# of
continuation
code bytes
Most significant byte (as non-
continuation) code
1
LSB
MSB
R31/15-12
R31/11-0
R30/15-12
R30/11-8
R30/7-1
R30/0
4 Bits
16 Bits
4 Bits =0
7 Bits
F
Freescale Semiconductor, Inc.
For More Information On This Product,
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