參數(shù)資料
型號(hào)： 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)： 9/156頁
文件大?。?/td> 1782K
代理商： MC72000
MOTOROLA
MC72000
Advance Information Data Sheet
Go to: www.freescale.com
9
Table 6 shows the overall current consumed by the MC72000 in many well-known scenarios as well as
detailed current in real-time specific modes.
The first row in Table 6 shows the maximum peak and typical average total current consumed by the
device in most scenarios used by PDAs, cell phone design, and other audio-capable devices such as
headsets. The current specified in this row is the total current consumed through the three power groups of
the MC72000 (i.e., the voltage relationship between the three different supply voltages in these three
groups are ignored). Power dissipated by the MC72000 may, therefore, be different than the direct power
consumption calculated on the total current consumption.
In order to find current values for special scenarios not covered by the typical values of total current
consumption, the current consumed in each of the three power groups are also defined in a variety of
usages. Each value represents the current consumed in between a repeatedly symmetrical timeframe, for
example, the BB power supply current for transmitting one-slot ACL packets is defined as the time from
start of TX burst to the start of RX burst, as the same current consumption is repeated again in the next TX
slot. This also applies to all currents defined for receiving packets regardless of packet type. See example
below in Figure 2. The repeatedly symmetrical pattern definition for the listed scenarios are shown in
Table 7.
Figure 2. Power Consumption Characteristics
Table 7. Real-time Current Consumption Definitions
Scenario
Defined as
TX and RX, ACL, HV
From TX burst to RX burst or vice versa
TX and RX Continuous
Absolute value as there is no repeated pattern
Standby Mode
Absolute value as there is no repeated pattern
Sniff Mode
One sniff cycle with defined length in seconds
Hold Mode
Total hold time from start to finish
Inquiry and/or Page Scan Mode
One page/inquiry scan interval with defined length in
seconds
3-SLOT TX
3-SLOT RX
3 x 625 μs
Actual TX average current
Actual TX peak current
3 x 625 μs
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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