参数资料
型号: AFE7222IRGCR
厂商: Texas Instruments
文件页数: 42/106页
文件大小: 0K
描述: IC AFE 12BIT 65/130MSPS 64VQFN
标准包装: 2,000
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: 带卷 (TR)
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
PWR_MTR_SYNC_NEEDED – Specifies if syncing is needed for the RX Power Meter . If set, power
computation begins a programmable number of cycles after the detection of a sync pulse. Applies for both
the coarse and fine power meters.
PWR_MTR_SER_IF_SYNC – A rising edge on this bit is used as the sync source for RX Power Meter.
This is applicable when RX_GLOBAL_SYNC_DIS is set, and PWR_MTR_SYNC_DIS is cleared, and
PWR_MTR_SYNC_SRC specifies serial interface bit to be the sync source for the Power Meter.
PWR_MTR_SYNC_SRC – Specifies the sync source for RX Power Meter . When cleared, SYNC pin is
used as the sync source . When set, a rising edge on serial interface bit PWR_MTR_SER_IF_SYNC is
used as the sync source for RX Power Meter. This is applicable when RX_GLOBAL_SYNC_DIS is set
PWR_MTR_SYNC_DIS – Disables Syncing of the RX Power Meter .This takes effect only when
RX_GLOBAL_SYNC_DIS is set.
Register Name – CONFIG84 – Address 0x17C, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
INTGR_CNT (20:13)
INTGR_CNT(20:13) – Upper 8 bits of the 21 bit Integration count for the fine power meter. Integration is
done over (8N + 3) samples where N is the unsigned integer represented by INTGR_CNT (20:0)
Register Name – CONFIG85 – Address 0x17D, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
INTGR_CNT(12:5)
INTGR_CNT(12:5) – Middle 8 bits of the 21 bit Integration count for the Power meter.
Register Name – CONFIG86 – Address 0x17E, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
INTGR_CNT(4:0)
SYNC_CNT(8:6)
SYNC_CNT(8:6) – Upper 3 bits of the 9 bit Sync count for the fine power meter. After the detection of a
sync pulse, there is a delay of 8N +4 cycles before Integration begins, where N is the unsigned integer
represented by SYNC_CNT(8:0)
INTGR_CNT(4:0) – Lower 5 bits of the 21 bit Integration count for the fine power meter.
Register Name – CONFIG87 – Address 0x17F, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
SYNC_CNT(5:0)
SYNC_CNT(5:0) – Lower 3 bits of the 9 bit Sync count.
Register Name – CONFIG88 – Address 0x180, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
INTRV_CNT (20:13)
INTRV_CNT (20:13) – Upper 8 bits of the 21 bit Interval count for the fine power meter. The actual
Interval period is (8N + 3) samples where N is the unsigned integer represented by INTRV_CNT (20:0)
40
REGISTER DESCRIPTIONS
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): AFE7222 AFE7225
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