Datasheet

MAX2066
50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
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DATA
CLOCK
CS
t
EWS
t
EW
t
ES
t
CW
t
CS
DN
MSB LSB
D(N - 1) D1 D0
t
CH
Figure 1. SPI Timing Diagram
Table 2. SPI Data Format
FUNCTION BIT DESCRIPTION
D27 (MSB) 16dB step (MSB of the 5-bit word used to program the digital attenuator state 4)
D26 8dB step
D25 4dB step
D24 2dB step
Digital Attenuator State 4
D23 1dB step (LSB)
D22
D21
D20
D19
Digital Attenuator State 3
D18
5-bit word used to program the digital attenuator state 3 (see the description for digital
attenuator state 4)
D17
D16
D15
D14
Digital Attenuator State 2
D13
5-bit word used to program the digital attenuator state 2 (see the description for digital
attenuator state 4)
D12
D11
D10
D9
Digital Attenuator State 1
D8
5-bit word used to program the digital attenuator state 1 (see the description for digital
attenuator state 4)