參數(shù)資料
型號(hào): ZL20250
廠商: Zarlink Semiconductor Inc.
英文描述: 2.5G Multimode Transceiver
中文描述: 2.5G的多模收發(fā)器
文件頁(yè)數(shù): 38/56頁(yè)
文件大?。?/td> 392K
代理商: ZL20250
ZL20250
Data Sheet
38
Zarlink Semiconductor Inc.
2.5.1 Q Channel Gain Adjust
Bits 22:20 adjust Q channel gain.
2.5.2 Baseband Offset Correction
Bits 19:12 adjust the dc offset for the Q channel. Bit 19 is the sign bit and bit 12 the LSB. Bits 11:4 adjust the dc offset
for the I channel with bit 11 the sign bit and bit 4 the LSB. The coding is the same for both I and Q channels and is
shown below:
Bit 23 must be set to '1' to enable dc offset correction.
2.6 Test Mode Register - Address 8
This register is used for test purposes only and should not be used.
<22>
<21>
<20>
Gain Adjustment(dB)
0
0
0
0
0
0
1
-3
0
1
0
-6
0
1
1
-9
1
0
0
-12
1
0
1
-15
1
1
0
-18
1
1
1
-21
00000000
Maximum positive correction
00000001
01111110
01111111
Zero positive correction
11111111
Zero negative correction
11111110
10000001
10000000
Maximum negative correction
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