msm7584c Oki Semiconductor, msm7584c Datasheet - Page 46

• Manufacturer Part Number: msm7584c
• Description: Pi /4 Shift Qpsk Modem/adpcm Codec
• Manufacturer: Oki Semiconductor

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(14) CR15 (I and Q Gain Adjustment)
CR15
Initial Value
CR1 - B7
CR1 - B3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B7 - B4: ......I+ and I– output gain setting: 3 mV steps (refer to Table 8)
B3 - B0: ......Q+ and Q– output gain setting: 3 mV steps (refer to Table 8)
B6
B2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
GAIN3
B7
lch
0
B5
B1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
Table 8 I and Q Channel Amplitude Value
B4
B0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
GAIN2
B6
lch
0
GAIN1
B5
lch
0
Amplitude Value :
GAIN0
B4
lch
0
Description
GAIN3
Qch
B3
1.042
0
1.036
1.030
1.024
1.018
1.012
1.006
1.000
0.994
0.988
0.982
0.976
0.970
0.964
0.958
0.952
(Reference Value)
(Reference Value)
GAIN2
Qch
B2
0
GAIN1
Qch
B1
0
MSM7584C
RX Qch
GAIN0
B0
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0