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AFE5804 Datasheet(PDF) 35 Page - Texas Instruments

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Part # AFE5804
Description  FULLY-INTEGRATED, 8-CHANNEL ANALOG FRONT-END FOR ULTRASOUND 0.89nV/?숰z, 12-Bit, 40MSPS, 101mW/Channel
PDF  60 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AFE5804 Datasheet(HTML) 35 Page - Texas Instruments

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AFE5804
www.ti.com ................................................................................................................................................ SBOS442A – JUNE 2008 – REVISED SEPTEMBER 2008
Table 8. Byte 4—Third Data Byte
BIT NUMBER
BIT NAME
DESCRIPTION
D24 (LSB)
DB5:1
Channel 5, LSB of matrix control
D25
DB5:2
Channel 5, matrix control
D26
DB5:3
Channel 5, matrix control
D27
DB5:4
Channel 5, MSB of matrix control
D28
DB6:1
Channel 6, LSB of matrix control
D29
DB6:2
Channel 6, matrix control
D30
DB6:3
Channel 6, matrix control
D31 (MSB)
DB6:4
Channel 6, MSB of matrix control
Table 9. Byte 5—Fourth Data Byte
BIT NUMBER
BIT NAME
DESCRIPTION
D32 (LSB)
DB7:1
Channel 7, LSB of matrix control
D33
DB7:2
Channel 7, matrix control
D34
DB7:3
Channel 7, matrix control
D35
DB7:4
Channel 7, MSB of matrix control
D36
DB8:1
Channel 8, LSB of matrix control
D37
DB8:2
Channel 8, matrix control
D38
DB8:3
Channel 8, matrix control
D39 (MSB)
DB8:4
Channel 8, MSB of matrix control
Table 10. LPF Bandwidth Setting
SETTING
FUNCTION
BW
D3 = 0
Bandwidth set to 17MHz (default)
BW
D3 = 1
Bandwidth set to 12.5MHz
Table 11. Mode Setting
M1 [D5]
M0 [D4]
FUNCTION
0
0
CW mode
0
1
TGC mode I; high-performance mode, lowest noise
1
0
TGC mode II; lowest power mode
1
1
PW mode
Table 12. PGA Gain Setting
PG1 (D7)
PG0 (D6)
FUNCTION
0
0
Sets PGA gain to 20dB (default)
0
1
Sets PGA gain to 25dB
1
0
Sets PGA gain to 27dB
1
1
Sets PGA gain to 30dB
Copyright © 2008, Texas Instruments Incorporated
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