参数资料
型号: AFE7222EVM
厂商: Texas Instruments
文件页数: 48/106页
文件大小: 0K
描述: EVAL MODULE FOR AFE7222
标准包装: 1
主要目的: 接口,模拟前端(AFE)
嵌入式:
已用 IC / 零件: AFE7222
已供物品:
其它名称: 296-30300
AFE7222EVM-ND
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
5.4
TX DAC CONTROL REGISTERS
Register Name – CONFIG112 – Address 0x237, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
DACQ_GAIN<7:0>
DACQ_GAIN<7:0>: Fine control of Channel B (DACQ) output current.
Output current range is 0.04*FS to -0.04*FS, where FS is Full scale current of DACQ. The word is in 2’s
complement format.
DACQ_GAIN<7:0>(decimal equivalent)
OUTPUT CURRENT
0
FS
127
FS+.04*FS
128
FS-.04*FS
Register Name – CONFIG113 – Address 0x238, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
DACI_GAIN<7:0>
DACI_GAIN<7:0>: Fine control of Channel A (DACI) output current. Similar to DACQ_GAIN<7:0>.
Register Name – CONFIG114 – Address 0x239, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
DACI_COARSEZ<3:0>
DACQ_COARSEZ<3:0>
DACI_COARSEZ<3:0>: Coarse control of the Channel A (DACI) output current. Let FS be full scale
current then,
DACI_COARSEZ<3:0>
OUTPUT CURRENT
0000
FS
0001
15*FS/16
0010
14*FS/16
0011
13*FS/16
0100
12*FS/16
0101
11*FS/16
0110
10*FS/16
0111
9*FS/16
1000
8*FS/16
1001
7*FS/16
1010
6*FS/16
1011
5*FS/16
1100
4*FS/16
1101
3*FS/16
1110
2*FS/16
1111
FS/16
DACQ_COARSEZ<3:0>: Coarse control of the Channel B (DACQ) output current - similar to
DACI_COARSEZ<3:0>.
46
REGISTER DESCRIPTIONS
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): AFE7222 AFE7225
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