参数资料
型号: AFE7222IRGCT
厂商: Texas Instruments
文件页数: 29/106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
Register Name – CONFIG25– Address 0x11E Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
TX_NCO_SYNC_
TX_NCO_SER_IF_
TX_NCO_SYNC_
DIS
SRC
SYNC
NEEDED
TX_NCO_SYNC_NEEDED – Specifies if syncing is needed for TX NCO. If set, NCO Frequency and
Offset words programmed into the serial interface registers are not applied to the NCO until a sync is
applied
TX_NCO_SER_IF_SYNC – A rising edge on this bit is used as the sync source for TX NCO. This is
applicable
when
TX_GLOBAL_SYNC_DIS
is
set,
and
TX_NCO_SYNC_DIS
is
cleared,
and
TX_NCO_SYNC_SRC specifies serial interface bit to be the sync source for the NCO.
TX_NCO_SYNC_SRC – Specifies the sync source for TX NCO. When cleared, SYNC pin is used as the
sync source. When set, a rising edge on serial interface bit TX_NCO_SER_IF_SYNC is used as the sync
source for TX NCO. This is applicable when TX_GLOBAL_SYNC_DIS is set.
TX_NCO_SYNC_DIS
Disables
Syncing
of
the
Tx
NCO.
This
takes
effect
only
when
TX_GLOBAL_SYNC_DIS is set.
Register Name – CONFIG26 – Address 0x11F, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CHA_REG1(15:8)
CHA_REG1(15:8) – Upper 8 bits for sample 1 for DAC A in 8-sample FIFO mode . TX_CHA_8_IP_EN in
CONFIG 1 needs to be set for Regs CONFIG26 to CONFIG41 to take effect.
Register Name – CONFIG27 – Address 0x120, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CHA_REG1(7:0)
CHA_REG1(7:0) – Lower 8 bits for sample 1 for DAC A
Register Name – CONFIG28 – Address 0x121, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CHA_REG2(15:8)
CHA_REG2(15:8) – Upper 8 bits for sample 2 for DAC A .
Register Name – CONFIG29 – Address 0x122, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CHA_REG2(7:0)
CHA_REG2(7:0) – Lower 8 bits for sample 2 for DAC A
Register Name – CONFIG30 – Address 0x123, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CHA_REG3(15:8)
CHA_REG3(15:8) – Upper 8 bits for sample 3 for DAC A
Register Name – CONFIG31 – Address 0x124, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CHA_REG3(7:0)
CHA_REG3(7:0) – Lower 8 bits for sample 3 for DAC A
Copyright 2011–2012, Texas Instruments Incorporated
REGISTER DESCRIPTIONS
29
Product Folder Link(s): AFE7222 AFE7225
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