GC5018_06 Datasheet, PDF (104/134 Pages) Texas Instruments – 8-CHANNEL WIDEBAND RECEIVER

GC5018
8-CHANNEL WIDEBAND RECEIVER
SLWS169A – MAY 2005 – REVISED NOVEMBER 2005
4.4.5.7 TADJC Register
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Register name: TADJC
BIT 15
unused
0
unused
0
Page: 0x0%00
where:
% = 2×(DDC channel #)+1
unused
0
0
Address: 0x06 DOUBLE BUFFERED, REQUIRES SYNC FOR
LOADING
tadj_offset_coarse_a(2:0)
0
0
unused
0
BIT 8
unused
0
BIT 7
unused
0
tadj_offset_coarse_b(2:0)
0
0
0
unused
0
unused
0
unused
0
BIT 0
unused
0
tadj_offset_coarse_a(2:0) : This is the coarse time adjustment offset and acts as an offset from the write
address in the delay ram. This value affects the A data in the path if CDMA mode is being
used. Each LSB is one more offset between input to the course delay block and the output of
the course block.
dj_offset_coarse_b(2:0) : Effects the B channel in CDMA, just as the above effects the A channel.
4.4.5.8 TADJF Register
Register name: TADJF
Page: 0x0%00
where:
% = 2×(DDC channel #)+1
BIT 15
tadj_offset_fine_a(2:0)
0
0
0
0
Address: 0x07 DOUBLE BUFFERED, REQUIRES SYNC FOR
LOADING
tadj_offset_fine_b(2:0)
0
0
BIT 8
tadj_interp(2:1)
0
0
BIT 7
tadj_interp(0)
0
unused
0
unused
0
unused
0
unused
0
unused
0
unused
0
BIT 0
unused
0
tadj_offset_fine_a(2:0) : This is the fine adjust (zero stuff offset) value. It adjusts the time delay at the
rxclk rate. This value affects the A channel data in the path if CDMA mode is being used.
tadj_offset_fine_b(2:0) : Same as above except this value affects the B channel data in CDMA mode.
tadj_interp(2:0) : This is the interpolation (zero stuff) value for the fine time adjust block. Interpolation
can be from 1 to 8 (tadj_interp + 1). This value affects the A and B data in the path if CDMA
mode is being used.
104 GC5018 GENERAL CONTROL