GC3021A Datasheet, PDF (22/38 Pages) Texas Instruments – 3.3V MIXER AND CARRIER REMOVAL CHIP

GC3021A 3.3V MIXER AND CARRIER REMOVAL CHIP
SLWS137A
4.7 OUTPUT CONTROL REGISTERS
Registers 8, 9, 10 and 11 contain the four output format control words. Each register is identical.
OUTPUT_REGA controls output YA, OUTPUT_REGB controls output YB, OUTPUT_REGC controls output
YC and OUTPUT_REGD controls output YD. The suggested default is 1FFF.
ADDRESS 8:
ADDRESS 9:
ADDRESS 10:
ADDRESS 11:
OUTPUT_REGA
OUTPUT_REGB
OUTPUT_REGC
OUTPUT_REGD
BIT
TYPE
NAME
DESCRIPTION
0-11
R/W
12
R/W
13
R/W
14
R/W
15
R/W
MASK
OUTPUT_SEL
RND_8
RND_10
-
12 Bit output mask. MASK is bitwise anded with the
output sample. Bit 0 is the LSB, bit 11 is the MSB.
Selects which signal is output on this port. See
Table 2 in Section 2.11.
Round to 8 bits
Round to 10 bits
Unused
The RND_8 and RND_10 controls are used to round the 12 bit output values to 8 or 10 bits. Only
one control should be high.
Texas Instruments Incorporated
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