參數(shù)資料
型號： AMIS-53050
英文描述： Frequency Agile Transceiver
中文描述： 捷變頻收發(fā)器
文件頁數(shù)： 51/107頁
文件大小： 2576K
代理商： AMIS-53050
AMIS-53050
Frequency Agile Transceiver
Data Sheet
Table 25: 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
3
4,
Regist
ptions:
Crystal Oscillator Trim
- The value of the calibration for the 10kHz oscillator. (See Section 6.10.1.1)
.4.4. Qu
The AMIS-530
close to
the Quick Start circuit can be obtained in the following documents: QuickStart.doc, and AMIS-53XXX_QuickStartAppNote.pdf.
T
Register
Number (HEX)
Name
Bits
0X28
RF PLL Options
7
Kicker calibration status
R
ons:
Q
tart
he value of
ib
ker” to force the crystal oscillator
the RF frequency. Information on
able 26: Kicker Calibration
er descri
6
ick Start
50 includes the ASTRIC family patented Quick Start oscillator. This circuit uses a “kic
the final desired frequency. This reduces the time required for the crystal oscillator to settle to
Function
6.4.5. Self Cal
on
T
is started by writing an instruction to the comman
has been pow
monitor the status registers and trim value registers to determine that the calibration was successful.
should
:
he frequency of the AMIS-53050 can change a small amount (possibly as much as +/- 10MHz at 915MHz) without requiring a
calibration. This tolerance depends on the frequency and VCO coil, so would have to be empirically determined
n
app
ote:
An RF signal input to the receiver is required when performing th
N
performed. An application designed with the AMIS-53050 should consider the proper way to do an LNA calibration or even if an LNA
n is needed.
AMIS-53
0 has internal trim
05
cti
th
ibration
the AMIS-53050
e, the application
efore the AMIS-530
Note
ew PLL
lication.
T
for an
e LNA calibration, therefore this calibration is not typically
calibratio
egister d scripti
uick S
Trim
- T
the cal ration for the kicker. (See Section 6.10.1.3)
ibrati
he
fun
ons for e PLL, TX PLL, RX PLL, 10kHz oscillator, and kicker (Quick Start). A self cal
d register. This self calibration needs to be done at least once after
50 is placed into any mode such as transmit or receive. In this cas
ered on and b
51
AMI Semiconductor
– Jan. 07, M-20639-002
www.amis.com
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