isl22444 Intersil Corporation, isl22444 Datasheet - Page 15

• Manufacturer Part Number: isl22444
• Description: Quad Digitally Controlled Potentiometer Xdcp? , Low Noise, Low Power, Spi? Bus, 256 Taps
• Manufacturer: Intersil Corporation

SDO
SCK
SDI
CS
µC
SDO 0
SDO 1
SDO 2
MOSI
MISO
SCK
SCK
SDI
CS
CS
INSTRUCTION
1
15
2
CS
SCK
SDI
FIGURE 19. DAISY CHAIN WRITE SEQUENCE OF N = 3 DCP
WR
DCP0
3
16 CLKLS
SDO
D C P2
FIGURE 18. DAISY CHAIN CONFIGURATION
4
FIGURE 20. TWO BYTE OPERATION
5
ADDR
CS
SCK
SDI
6
ISL22444
DCP1
7
WR
WR
SDO
16 CLKS
8
D C P1
D C P2
N DCP IN A CHAIN
9
CS
SCK
SDI
10
DCP2
11
SDO
WR
WR
WR
DATA OUT
DATA IN
16 CLKS
12
D C P2
D C P1
D C P0
13
14
15
CS
SCK
SDI
DCP(N-1)
16
SDO
May 24, 2007
FN6426.0