参数资料
型号: AFE7222IRGCT
厂商: Texas Instruments
文件页数: 45/106页
文件大小: 0K
描述: IC AFE 12BIT 65/130MSPS 64VQFN
标准包装: 1
位数: 12
通道数: 4
功率(瓦特): 610mW
电压 - 电源,模拟: 2.85 V ~ 3.6 V
电压 - 电源,数字: 1.7 V ~ 1.9 V
封装/外壳: 64-VFQFN 裸露焊盘
供应商设备封装: 64-VQFN 裸露焊盘(9x9)
包装: 标准包装
其它名称: 296-30113-6
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
PWR_OP_Q(19:12)
Register Name – CONFIG104 – Address 0x190, Default = 0x00 (Read Only)
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
PWR_OP_Q(11:4)
Register Name – CONFIG105 – Address 0x191, Default = 0x00 (Read Only)
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
PWR_OP_Q(3:0)
PWR_OP_Q_RDY
PWR_OP_I_RDY
PWR_OP_I_RDY – Set when the very first computation from the ‘I’ power meter is complete.
PWR_OP_Q_RDY – Set when the very first computation from the ‘Q’ power meter is complete.
PWR_OP_Q(3:0) – Lowest two bits of the power meter output for Q channel when it is configured to do
fine power computation in the real mode.
Register Name – CONFIG106 – Address 0x1B2, Default = 0x00 (Read Only)
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
COARSE_PWR_OP_I(3:0)
COARSE_PWR_OP_Q(3:0)
COARSE_PWR_OP_Q(3:0) – Represents the power in the Q channel when power meter is configured in
the coarse power computation mode. In complex power computation mode, this output should be ignored.
The mapping of this value to the db scale is given below table.
COARSE_PWR_OP_I(3:0) – Represents the power in the I channel when power meter is configured in
the coarse power computation mode. In complex power computation mode, this output represents the
complex power.
Note – In complex power computation mode, the full scale is twice of what it is in the real power
computation mode.
VALUE
POWER IN DB SCALE
15
Greater than –1 dbFS
14
Greater than –2 dbFS
13
Greater than –3 dbFS
12
Greater than –4 dbFS
11
Greater than –5 dbFS
10
Greater than –6 dbFS
9
Greater than –7 dbFS
8
Greater than –8 dbFS
7
Greater than –9 dbFS
6
Greater than –10 dbFS
5
Greater than –11 dbFS
4
Greater than –12 dbFS
3
Greater than –13 dbFS
2
Greater than –14 dbFS
1
Greater than –15 dbFS
0
Lesser than –15 dbFS
Copyright 2011–2012, Texas Instruments Incorporated
REGISTER DESCRIPTIONS
43
Product Folder Link(s): AFE7222 AFE7225
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