CMX980AL7 CML Microcircuits, CMX980AL7 Datasheet - Page 74

• Manufacturer Part Number: CMX980AL7
• Description: TETRA Baseband Processor
• Manufacturer: CML Microcircuits

TETRA Baseband Processor
Title:
Address:
Function:
Description:
7:0
7:0
7:0
7:0
Bit
1999 Consumer Microcircuits Limited
RxIOffsetLSB
RxIOffsetMSB
RxQOffsetLSB
RxQOffsetMSB
RxIQOffset
Receive I and Q Channel Offset correction register
$0x32, $0x33, $0x36, and $0x37 (4 locations)
RW
This register controls the Rx Data path signal offset. This offset is a 2s-complement value
(N
FIR filters. The offset applied is at the discretion of the user. Inappropriate values may cause
arithmetic overflow in the subsequent operator sections. The result is given by the formula:
Name
offset
Address $0x32
Address $0x33
Address $0x36
Address $0x37
), which is applied to the Rx signal after the Gain Multiplier (G
D
out
Data
Data
Data
Data
Active State
D +
in
RW
RW
RW
RW
N
2
offset
15
Least significant 8 bits of the RxIOffset register (N
Most significant 8 bits of the RxIOffset register (N
Least significant 8 bits of the RxQOffset register (N
Most significant 8 bits of the RxQOffset register (N
74
Where:
D
D
N
in
out
offset
Function
is the signal input,
is the signal output,
is the signed 2s-complement
value in the register.
val
), but before the two 63-tap
offset
offset
offset
offset
CMX980A
D/980A/3
).
).
).
).