Rainbow-electronics MAX11043 Manual do Utilizador descarregar pdf (Página 23)

MAX11043

4-Channel, 16-Bit, Simultaneous-Sampling ADCs

with PGA, Filter, and 8-/12-Bit Dual-Stage DAC

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FINE GAIN REGISTER GAIN

7FFFh (4 – 1/8192)

4000h 2

2001h 8193/8192

2000h 1 (default)

1FFFh 8191/8192

1000h 0.5

0800h 0.25

Fine Gain A/B/C/D Registers (11h–14h)

Fine gain for each channel is a two’s complement binary value (8192 x desired gain).

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

CHAN1 CHAN0 ADR5 ADR4 ADR3 ADR2 ADR1 ADR0

Filter Coefficient Address Register (15h)

CHAN_<7:6>: Channel selection.

00 = channel A (default).

01 = channel B.

10 = channel C.

11 = channel D.

ADR5:ADR0<5:0>: Address pointer for C-RAM con-

taining filter coefficients (default = 0).

Filter Coefficient Data Out Register (16h)

This is a 32-bit register that contains the data from a

C-RAM read operation.

Filter Coefficient Data In Register (17h)

This is a 32-bit register that contains the data for a C-RAM

write operation. Default = 0.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 31 32

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