MAX2063 MAXIM [Maxim Integrated Products], MAX2063 Datasheet - Page 16

• Manufacturer Part Number: MAX2063
• Description: Dual 50MHz to 1000MHz High-Linearity, Serial/Parallel-Controlled Digital VGA
• Manufacturer: MAXIM [Maxim Integrated Products]

Dual 50MHz to 1000MHz High-Linearity,
Serial/Parallel-Controlled Digital VGA
D0:D7
D8:D12
D13:D17 Preprogrammed Attenuation State 2
D18:D22 Preprogrammed Attenuation State 3
D23:D27 Preprogrammed Attenuation State 4
Figure 1. SPI Timing Diagram
16
Reserved. Set to logic 0.
Preprogrammed Attenuation State 1
D11 = 8dB bit, D12 = 16dB bit
D16 = 8dB bit, D17 = 16dB bit
D18 = 1dB bit, D19 = 2dB bit, D20 = 4dB bit,
D21 = 8dB bit, D22 = 16dB bit
D23 = 1dB bit, D24 = 2dB bit, D25 = 4dB bit,
D26 = 8dB bit, D27 = 16dB bit
D8 = 1dB bit, D9 = 2dB bit, D10 = 4dB bit,
D13 = 1dB bit, D14 = 2dB bit, D15 = 4dB bit,
1st Digital Attenuator Programming
CLOCK
DATA
NOTES:
CS
DATA ENTERED ON CLOCK RISING EDGE.
ATTENUATOR REGISTER STATE CHANGE ON CS RISING EDGE.
N = NUMBER OF DATA BITS.
MSB
t
EWS
DN
t
CS
D(N-1)
D28:D35
D36:D40
D41:D45
D46:D50
D51:D55
D1
t
CH
Reserved. Set to logic 0.
Preprogrammed Attenuation State 1
D36 = 1dB bit, D37 = 2dB bit, D38 = 4dB bit,
D39 = 8dB bit, D40 = 16dB bit
Preprogrammed Attenuation State 2
D41 = 1dB bit, D42 = 2dB bit, D43 = 4dB bit,
D44 = 8dB bit, D45 = 16dB bit
Preprogrammed Attenuation State 3
D46 = 1dB bit, D47 = 2dB bit, D48 = 4dB bit,
D49 = 8dB bit, D50 = 16dB bit
Preprogrammed Attenuation State 4
D51 = 1dB bit, D52 = 2dB bit, D53 = 4dB bit,
D54 = 8dB bit, D55 = 16dB bit
t
2nd Digital Attenuator Programming
CW
t
ES
D0
LSB
t
EW