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TLV1578CDARG4 Datasheet(PDF) 5 Page - Texas Instruments |
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TLV1578CDARG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 34 page TLV1571, TLV1578 2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT, PARALLEL ANALOG-TO-DIGITAL CONVERTERS SLAS170D –MARCH 1999 – REVISED JULY 2000 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 detailed description (continued) control registers Output = Output = Output = 0: Binary 1: 2s Complement 0: Reserved Bit, Always Write 0 0: INT. OSC. SLOW 1: INT. OSC. FAST 7h 6h 5h STARTSEL A1 A0 D6 D5 D4 D3 D2 D1 D0 D7 Control Register Zero (CR0) D6 D7 D5 D4 D3 D2 D1 D0 Channels Swept PROGEOC CLKSEL SWPWDN MODESEL CHSEL(2–0)† 0: HARDWARE START (CSTART) A(1:0)=00 1: SOFTWARE START 0: INT 1: EOC 0: Internal Clock 1: External Clock 0: NORMAL 1: Power Down 0: Single Channel 1: Sweep Mode D(2– 0) 0h 1h 2h 3h 4h 0,1 0,1,2,3 0,1,2,3,4,5, 0,1,2,3,4,5,6,7 N/A N/A N/A N/A 3h 2h 1h RESERVED Control Register One (CR1) D6 D7‡ D3 D2 D1 D0 IF READREG = 0 OSCSPD 0 Reserved 0 Reserved OUTCODE READREG 0: Reserved Bit Always Write 0 A(1:0)=01 0: Reserved Bit Always Write 0 0: Enable Self Test ACTION 1: Enable Register Read back 0h 1h 2h 3h CONVERSION result SELF TEST 1 result SELF TEST 2 result Output Contents of CR1 RESERVED RESERVED STEST1 STEST0 CR1.(1–0) SELF TEST 3 result IF READREG = 1 Output Contents of CR0 0h 7 6 5 Single Input 0 1 2 3 4 Output = D5‡ D4‡ † Don’t care for TLV1571 ‡ When in read back mode, the values read from the control register reserved bits are don’t care. Figure 2. Input Data Format |
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