x9430 Intersil Corporation, x9430 Datasheet - Page 3

• Manufacturer Part Number: x9430
• Description: Dual Digitally Controlled Potentiometer Xdcp ?with Operational Amplifier
• Manufacturer: Intersil Corporation

X9430 – Preliminary Information
PIN CONFIGURATION
REV 1.0 6/20/00
V
V
R
R
OUT0
V
R
R
V
R
R
WP
R
V
V
INV0
R
CS
R
WP
W0
W1
CC
A1
SO
H0
SI
H1
NI0
CS
SS
V+
W0
L0
L1
CC
A
H0
L0
0
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
X9430
SOIC
TSSOP
X9430
14
13
24
23
22
21
20
19
18
17
16
15
24
23
22
21
20
19
18
17
16
15
14
13
V+
V
V
V
A0
S0
HOLD
SCK
V
V
V
V-
OUT0
NI0
INV0
INV1
NI1
OUT1
HOLD
SCK
V
V
V
V-
V
R
R
R
A
SI
INV1
NI1
OUT1
SS
1
W1
H1
L1
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PIN NAMES
PRINCIPLES OF OPERATION
The X9430 is an integrated microcircuit incorporating two
digitally controlled potentiometers, two operational
amplifiers and their associated registers and counters;
and the serial interface logic providing direct communica-
tion between the host and the digitally controlled
potentiometers.
Serial Interface
The X9430 supports the SPI interface hardware con-
ventions. The device is accessed via the SI input with
data clocked in on the rising edge of SCK. CS must be
LOW and the HOLD and WP pins must be HIGH dur-
ing the entire operation.
SCK
SI
SO
A0-A1
CS
HOLD
R
R
V
V
WP
V+,V-
V
V
NI(0,1)
OUT0,
CC
SS
H0
W0
–R
–R
Symbol
H1
W1
, V
V
OUT1
, R
INV(0,1)
L0
–R
L1
Characteristics subject to change without notice.
Serial Clock
Serial Input
Serial Output
Device Address
Chip Select
Hold
Potentiometers (terminal
equivalent)
Potentiometers (wiper
equivalent)
Amplifier Input Voltages
Amplifier Outputs
Hardware Write Protection
Analog and Voltage Amplifier
Supplies
System/Digital Supply Voltage
System Ground
Description
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