Rainbow-electronics MAX19515 Manual do Utilizador descarregar pdf (Página 22)

MAX19515

Dual-Channel, 10-Bit, 65Msps ADC

22 ______________________________________________________________________________________

Clock Divide/Data Format/Test Pattern (06h)

Reserved (07h)—Do not write to this register

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

TEST_PATTERN TEST_DATA FORMAT_1 FORMAT_0 TERM_100 SYNC_MODE DIV1 DIV0

Bit 7 TEST_PATTERN: Test pattern selection

0 = Ramps from 0 to 1023 (offset binary) and repeats (subsequent formatting applied) (default)

1 = Data alternates between D[9:0] = 0101010101, DOR = 1, and D[9:0] = 1010101010,

DOR = 0 on both channels

Bit 6 TEST_DATA: Data test mode

0 = Normal data output (default)

1 = Outputs test data pattern

Bit 5, 4 FORMAT_1, FORMAT_0: Data numerical format

00 = Two’s complement (default)

01 = Offset binary

10 = Gray code

11 = Two’s complement

Bit 3 TERM_100: Select 100Ω clock input termination

0 = No termination (default)

1 = 100Ω termination across differential clock inputs

Bit 2 SYNC_MODE: Divider synchronization mode select

0 = Slip mode (Figure 11) (default)

1 = Edge mode (Figure 12)

Bit 1, 0 DIV1, DIV0: Input clock-divider select

00 = No divider (default)

01 = Divide-by-2

10 = Divide-by-4

11 = No divider

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Rainbow-electronics MAX19515 Manual do Utilizador Página 22