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參數資料
型號: AFE7222EVM
廠商: Texas Instruments
文件頁數: 88/106頁
文件大小: 0K
描述: EVAL MODULE FOR AFE7222
標準包裝: 1
主要目的: 接口,模擬前端(AFE)
嵌入式:
已用 IC / 零件: AFE7222
已供物品:
其它名稱: 296-30300
AFE7222EVM-ND
ADC_DCLKOUT
ADCDATA <11:0>
A
B
A
B
A
B
ADC_DCLKOUT
ADCDATA <11:0>
A
B
A
th
tsu
th
tsu
tCLK
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
Table 10-2 shows the maximum frequency of operation of various clocks of AFE7225 in CMOS interface
mode (by default after reset, AFE722x operates in CMOS interface mode for both RX and TX path).
Table 10-2. Maximum Interface Rates in CMOS Mode
RX PATH
Decimation Factor
Low Power CMOS Mode
Max ADC Sampling Clock
(register bits
Max ADC_DCLKOUT
Max Parallel Output Data Rate
(register bit
(ADC_CLK(1))
RX_DEC_FIL_EN,
MHz
Mbps, per pin
MODE_LP_CMOS)
MHz
RX_DEC_FIL_EN_SRC)
1
105
210
Disabled (default)
105
2
52.5
105
1
40
80
Enabled
40
2
20
40
TX PATH
Interpolation Factor
Max DAC Output Clock
(register bits
Max DAC_DCLKIN
Max Parallel Input Data Rate
(DAC_CLK(1))
TX_INT_MODE(1:0),
MHz
Mbps, per pin
MHz
TX_INT_MODE_SRC)
1
130
260
2
130
65
130
4
32.5
65
(1)
ADC_CLK and DAC_CLK are derived from clocks on CLKINP and CLKINN (differential clock, a single-ended clock or two independent
single-ended clocks). See Clocking section for details. For Full-Duplex operation requiring two single-ended clocks, see section Full
10.1 PARALLEL CMOS ADC RX DATA
The 12-bit ADC-A and ADC-B data is interleaved (A then B) into one 12-bit word on pins
ADCDATA0:ADCDATA11 at twice the rate of each pattern with a DDR clock (data transitions on rising
and falling edges). This can be quadrature data or two independent receive channels. Note that in the
default RX CMOS mode, the edges of the ADC_DCLKOUT are aligned in the middle of the data window.
Figure 10-1. RX CMOS Interleaved Output
10.2 TIMING INFORMATION FOR PARALLEL CMOS ADC RX DATA
tCLK = Time period of ADC output data clock (same as time period of ADC sampling clock when decimation is set to
1).
Figure 10-2. RX CMOS Output Timing
82
DIGITAL INTERFACE
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): AFE7222 AFE7225
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相關代理商/技術參數
參數描述
AFE7222IRGC25 功能描述:射頻前端 Dual 12B,65MSPS ADC RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數據速率:54 Mbps 噪聲系數: 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-32
AFE7222IRGCR 功能描述:射頻前端 Dual 12B,65MSPS ADC RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數據速率:54 Mbps 噪聲系數: 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-32
AFE7222IRGCT 功能描述:射頻前端 Dual 12B,65MSPS ADC RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數據速率:54 Mbps 噪聲系數: 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-32
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AFE7225EVM 功能描述:射頻開發工具 AFE7225 Eval Mod RoHS:否 制造商:Taiyo Yuden 產品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V
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