AMIS-53050 Datasheet, PDF (49/107 Pages) AMI SEMICONDUCTOR – Frequency Agile Transceiver

AMIS-53050 Frequency Agile Transceiver
Data Sheet
6.4.1.6. Peak Deviation 0
Table 23: Peak Deviation 0 - 0X0A [10]
Bit
Name
Comment
7:0
PEAK_DEV [7:0]
Lower 8 bits of the peak deviation
6.4.1.7. RF PLL Options
Contains general options for the setup of the RF PLL.
Table 24: RF PLL Options - 0X28 [40]
Bit Name
7 _{Kicker calibration status}
6
Temperature
compensation curve
5 Reserved
4 Reserved
3 Internal loop filter
2 Charge pump current
1 Ivco[1:0]
State
1
0
1
0
1
0
1
0
11
01
10
00
Comment
The kicker has been calibrated
The kicker has not been calibrated
Use the Type 1 compensation for external crystal with curves similar to Type 1
Use the Type 2 compensation for external crystal with curves similar to Type 2
Enable using the internal loop filter for the PLL (used for calibration)
50uA
25uA
Ivco= 1.2mA
Ivco= 800uA
Ivco= 600uA
Ivco= auto level control
Figure 34: Typical Crystal Temperature Curve for Crystal with Type 1 Characteristics
AMI Semiconductor – Jan. 07, M-20639-002
49
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