GC5018_06 Datasheet, PDF (112/134 Pages) Texas Instruments – 8-CHANNEL WIDEBAND RECEIVER

GC5018
8-CHANNEL WIDEBAND RECEIVER
SLWS169A – MAY 2005 – REVISED NOVEMBER 2005
4.4.5.23 AGC_AMAX Register
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Register name: AGC_AMAX
BIT 15
0
0
BIT 7
0
0
Page: 0x0%00
where:
% = 2×(DDC channel #)+1
Address: 0x16
agc_amax(15:8)
0
0
0
0
0
agc_amax(7:0)
0
0
0
0
0
BIT 8
0
BIT 0
0
agc_amax(15:0) : This is the maximum gaina or gainb can be adjusted up. The value programmed is a
positive value that is used to generate the most positive AGC gain adjust. For example, if
512 is programmed, the maximum gain will be the programmed gain (AGC_GAINA/B) + 512.
4.4.5.24 AGC_AMIN Register
Register name: AGC_AMIN
BIT 15
0
0
BIT 7
0
0
Page: 0x0%00
where:
% = 2×(DDC channel #)+1
Address: 0x17
agc_amin(15:8)
0
0
0
0
0
agc_amin(7:0)
0
0
0
0
0
BIT 8
0
BIT 0
0
agc_amin(15:0) : This is the minimum gaina or gainb can be adjusted down. The value programmed is a
positive value that is inverted internally to generate the most negative AGC gain adjust. For
example, if 512 is programmed, the minimum gain will be the programmed gain
(AGC_GAINA/B) – 512.
112 GC5018 GENERAL CONTROL