CS5501-BS Cirrus Logic Inc, CS5501-BS Datasheet - Page 35

• Manufacturer Part Number: CS5501-BS
• Description: A/D Converter (A-D) IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5501-BS

• Peak Reflow Compatible (260 C): No
• No. Of Bits: 16 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Interface Type: Serial
• Package / Case: 20-SOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

In such asynchronous configurations the CS5501
is operated much like a successive-approximation
converter with a Convert signal and a subsequent
read cycle.
If it is required to latch the 16-bit data, then 2
74HC595 8-bit "shift register with latch" parts
may be used instead of 74HC299’s.
Serial Interfaces
Figures A3 to A8 offer both the hardware and
software interfaces to several industry-standard
microcontrollers using the CS5501’s SEC and
AC output modes. In each instance a system in-
itialization routine is provided which configures
the controller’s I/O ports to accept the CS5501’s
serial data and clock outputs and/or generate its
+5V
DS31F2
MODE
CS
CS5501
CS5503
SDATA
DRDY
SCLK
+5V
+5V
A
S1
S2
Q
A
S1
S2
OE2 OE1
OE2
H
Figure A2. 8-Bit Parallel Interface
OE1
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
own serial clock. The routine also sets the
CS5501 into a known state.
For each interface, a second subroutine is also
provided which will collect one complete 16-bit
output word from the CS5501. Figure A5 illus-
trates the detailed timing throughout the
subroutine for one particular interface - the
COPS family interface of Figure A4.
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
D
CS5501/CS5503
RESET
SET
Only needed for
interrupt driven systems
Q
Q
(For polling)
CS
A0
INT
DRDY
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