參數(shù)資料
型號(hào)： AMIS-53000
英文描述： Frequency Agile Transceiver
中文描述： 捷變頻收發(fā)器
文件頁(yè)數(shù)： 45/99頁(yè)
文件大?。?/td> 2638K
代理商： AMIS-53000
AMIS-53000
Frequency Agile Transceiver
Data Sheet
Table 26: System Clock Control
Register
Number (HEX)
Name
Bits
Function
11 POR starts in TX
10 POR starts in RX
01 POR starts in idle
00 POR starts in standby
Standby mode with system clock output
11 External XTAL reference divided by 2 (12MHz)
10 External XTAL reference divided by 4 (6MHz)
01 External XTAL reference divided by 8 (3MHz)
00 System clock off
11 System clock continues for 1024 clock cycles
10 System clock continues for 512 clock cycles
01 System clock continues for 256 clock cycles
00 System clock shuts down after idle command ASAP
2,1
0X0C
General Options A
0
0X0D
General Options B
1,0
0X10
Idle Config
4,3
Setup registers descriptions:
Crystal Oscillator Trim
- The value of the calibration for the 10kHz oscillator. (See Section 6.10.1.1)**
6.4.4. Quick Start
The AMIS-53000 includes the ASTRIC family patented Quick Start oscillator. This circuit uses a “kicker” to force the crystal oscillator
close to the final desired frequency. This reduces the time required for the crystal oscillator to settle to the RF frequency.
Table 27: Kicker Calibration
Register
Number (HEX)
Name
Bits
0X28
RF PLL Options
7
Kicker calibration status
Setup registers descriptions:
Quick Start Trim
- The value of the calibration for the kicker. (See Section 6.10.1.3)**
Function
6.4.5. Self Calibration
The AMIS-53000 has internal trim functions for the PLL, TX PLL, RX PLL, 10kHz oscillator, and kicker (Quick Start). A self calibration
is started by writing an instruction to the command register. This self calibration needs to be done at least once after the AMIS-53000
has been powered on and before the AMIS-53000 is placed into any mode such as transmit or receive. The application should monitor
the status registers and trim value registers to determine that the calibration was successful.
Table 28: Self Calibration Command
Register
Number (HEX)
Name
Code
0X07
Calibrate the Quick Start (kicker)
0X08
Calibrate the 10kHz oscillator
0X09
Calibrate the PLL
0X0A
Calibrate the LNA
Bit 2
Calibrate PLL during HK
Bit 1
Calibrate 10kHz oscillator during HK
0X1B
Config
Bit 0
Calibrate kicker during HK
Function
0X00
Command
Housekeeping
45
AMI Semiconductor
– Aug. 05, Rev. 1.0
www.amis.com
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