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MT7612
EEPROM Content
Confidential B
MediaTek Confidential
© 2013 MediaTek Inc.
Page 30 of 32
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
i.
Thermal sensor value: This value will be filled in MTK FT production line.
Customers don’t need to re-fill this column.
2.37 2G/5G ePA Slope for Temperature Compensation
(0xF2h~0xF5h)
Offset Description
0xF2
5G ePA NT to high temp slope
0xF3
5G ePA NT to low temp slope
0xF4
2G ePA NT to high temp slope
0xF5
2G ePA NT to low temp slope
1. Fill up 2/5G ePA NT to high temp slope and NT to low temp slope value with positive value slope
2. If Slope value equals to 0x00 or 0xFF, temperature compensation will be disable
3. Unit of Slope: (
℃
/dB)
Example:
If gain difference between NT and HT is 4dB, the slope of +25 degree C to 85 degree C is equal to 15
(85-25)/4=15(dec)=0x0F(hex)
If gain difference between NT and LT is 5dB, the slope of +25 degree C to -20 degree C is equal to 9
((25-(-20))/5=9(dec)=0x09(hex)
If you use MTK HDK, you could use value as follows.
Offset
Value
Description
0xF2
0F
5G ePA NT to high temp slope
0xF3
09
5G ePA NT to low temp slope
0xF4
0D
2G ePA NT to high temp slope
0xF5
10
2G ePA NT to low temp slope
2.38 2G/5G ePA Temperature Compensation limit(0x53h~0x54h)
Temperature compensation will be constraint within Temperature compensation configures in
0x53h~0x54h. Resolution is 1dB/step.
1. Use 0x53[7:4] for 2G temperature compensation upper limit for high temperature gain
variation
2. Use 0x53[3:0] for 2G temperature compensation lower limit for low temperature gain variation.
3. Use 0x54[7:4] for 5G temperature compensation upper limit for high temperature gain
variation.
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FOR danielwu@ synnex.com.tw USE ONLY
