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參數(shù)資料
| 型號： | X9470 |
| 英文描述： | RF Power Amplifier (PA) Bias Controller |
| 中文描述： | 射頻功率放大器（PA）的偏置控制器 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大小： | 542K |
| 代理商： | X9470 |
21 of 25
REV 11.16 3/20/03
www.xicor.com
Preliminary Information
X9470
Stop Condition
All communications must be terminated by a stop con-
dition, which is a LOW to HIGH transition of SDA when
SCL is HIGH. The stop condition is also used to place
the device into the Standby power mode after a read
sequence. A stop condition can only be issued after the
transmitting device has released the bus. See Figure 9.
Acknowledge
Acknowledge is a software convention used to indicate
successful data transfer. The transmitting device, either
master or slave, will release the bus after transmitting
eight bits. During the ninth clock cycle, the receiver will
pull the SDA line LOW to acknowledge that it received
the eight bits of data. Refer to Figure 10.
The device will respond with an acknowledge after rec-
ognition of a start condition and if the correct Device
Identifier and Select bits are contained in the Slave
Address Byte. If a write operation is selected, the
device will respond with an acknowledge after the
receipt of each subsequent eight bit word. The device
will acknowledge all incoming data and address bytes,
except for:
– The Slave Address Byte when the Device Identifier
and/or Select bits are incorrect
– The 2nd Data Byte of a Status Register Write Opera-
tion (only 1 data byte is allowed)
Figure 9. Valid Start and Stop Conditions
Figure 10. Acknowledge Response From Receiver
Figure 11. Valid Data Changes on the SDA Bus
SCL
SDA
Start
Stop
SCL from
Master
Data Output
from Transmitter
Data Output
from Receiver
8
1
9
Start
Acknowledge
SCL
SDA
Data Stable
Data Change
Data Stable
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| X9470V24I | 功能描述:IC BIAS CTRLR RF PA 24-TSSOP RoHS:否 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標準包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點:四頻帶 封裝/外殼:8-VFBGA 供應商設備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX |
| X9483919-2 | 功能描述:環(huán)形MIL規(guī)格工具、五金與附件 RoHS:否 制造商:Amphenol Industrial MIL 類型:MIL-DTL-5015 系列:97 產品類型:Dummy Receptacles 用于:97 Series Plugs |
| X9483919-3 | 功能描述:環(huán)形MIL規(guī)格工具、五金與附件 RoHS:否 制造商:Amphenol Industrial MIL 類型:MIL-DTL-5015 系列:97 產品類型:Dummy Receptacles 用于:97 Series Plugs |
| X9483919-4 | 功能描述:環(huán)形MIL規(guī)格工具、五金與附件 RoHS:否 制造商:Amphenol Industrial MIL 類型:MIL-DTL-5015 系列:97 產品類型:Dummy Receptacles 用于:97 Series Plugs |
| X9483919-5 | 功能描述:環(huán)形MIL規(guī)格工具、五金與附件 RoHS:否 制造商:Amphenol Industrial MIL 類型:MIL-DTL-5015 系列:97 產品類型:Dummy Receptacles 用于:97 Series Plugs |
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