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ADS5270 Datasheet(Fiches technique) 6 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Numéro de pièce ADS5270
Description  8-Channel, 12-Bit, 40MSPS ADC with Serial LVDS Interface
Télécharger  18 Pages
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Fabricant  BURR-BROWN [Burr-Brown (TI)]
Site Internet  http://www.burr-brown.com
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 6 page
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ADS5270
SBAS293D − JANUARY 2004 − REVISED MAY 2004
www.ti.com
6
SERIAL INTERFACE TIMING
ADDRESS
DATA
DESCRIPTION
REMARKS
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0. LVDS BUFFERS
0
0
Normal ADC Output
0
1
Deskew Pattern
Patterns Get Reversed in MSB First
Mode of LVDS
1
0
Sync Pattern
Patterns Get Reversed in MSB First
Mode of LVDS
1
1
Custom Pattern
Mode of LVDS
0
0
Output Current in LVDS = 3.5mA
0
1
Output Current in LVDS = 2.5mA
1
0
Output Current in LVDS = 4.5mA
1
1
Output Current in LVDS = 6.0mA
0
0
0
1
1. LSB/MSB MODE
D3
D2
D1
D0
Default LVDS Clock Output Current
0
X
X
1
2X LVDS Clock Output Current
0
0
X
X
LSB Mode
0
1
X
X
MSB Mode
0
0
1
0
2. POWER-DOWN ADC CHANNELS
D3
D2
D1
D0
X
X
X
X
Power-Down Channels 1 to 4; D3 is
for Channel 4 and D0 for Channel 1
Example: 1010 Powers Down
Channels 4 and 2 and Keeps
Channels 1 and 3 Alive
0
0
1
1
3. POWER-DOWN ADC CHANNELS
D3
D2
D1
D0
X
X
X
X
Power-Down Channels 5 to 8; D3 is
for Channel 8 and D0 for Channel 5
CUSTOM PATTERN (registers 4-6)
D3
D2
D1
D0
0
1
0
0
MSB
X
X
X
0
1
0
1
X
X
X
X
Bits for Custom Pattern
0
1
1
0
X
X
X
LSB
TEST PATTERNS(1)
Deskew
101010101010
Sync
000000111111
Custom
Any 12-bit pattern that is defined in the custom pattern registers 4 to 6. The output comes out in the following order:
D0(4) D1(4) D2(4) D3(4) D0(5) D1(5) D2(5) D3(5) D0(6) D1(6) D2(6) D3(6)
where, for example, D0(4) refers to the D0 bit of register 4, etc.
(1) Default is LSB first. If MSB is selected the above patterns will be reversed.




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