msm7583 Oki Semiconductor, msm7583 Datasheet - Page 18

• Manufacturer Part Number: msm7583
• Description: Shift Qpsk Modem
• Manufacturer: Oki Semiconductor

¡ Semiconductor
(2) CR1 (I, Q gain adjustment)
(3) CR2 (ENV gain adjustment)
CR1
Initial value
CR2
Initial value
B7 to B4: I+/I- output gain setting, in 3 mV steps (Refer to Table 3.)
B3 to B0: Q+/Q- output gain setting, in 3 mV steps (Refer to Table 3.)
B7 to B4: ENV output gain setting, in 9 mV steps (Refer to Table 3.)
B3 to B0: Not used
B7
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B6
B2
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
CR1
B5
B1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
GAIN3
GAIN3
ENV
B7
Ich
B7
0
0
B4
B0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
(value relative to the reference
(1.000) at (0, 0, 0, 0))
GAIN2
Table 3 I, Q, and ENV Output Gain Values
GAIN2
ENV
B6
Ich
I and Q Amplitude
B6
0
0
1.042
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
GAIN1
GAIN1
ENV
B5
Ich
B5
0
0
GAIN0
GAIN0
ENV
B4
Ich
B4
0
0
B7 B6 B5 B4
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
CR2
GAIN3
Qch
B3
1
1
1
1
1
1
1
1
B3
0
0
0
0
0
0
0
0
—
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
(value relative to the reference
GAIN2
Qch
B2
B2
(1.000) at (0, 0, 0, 0))
—
0
0
ENV Amplitude
1.126
1.108
1.090
1.072
1.054
1.036
1.018
1.000
0.982
0.964
0.946
0.928
0.910
0.892
0.874
0.856
GAIN1
Qch
B1
B1
—
0
0
GAIN0
MSM7583
Qch
B0
B0
—
0
0
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