CS5509-AS Cirrus Logic Inc, CS5509-AS Datasheet - Page 19

• Manufacturer Part Number: CS5509-AS
• Description: A/D Converter (A-D) IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5509-AS

• Peak Reflow Compatible (260 C): No
• Sample Rate: 200 SPS
• Supply Voltage Max: 5V
• No. Of Bits: 16 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• No. Of Channels: 1
• Power Rating: 1.7mW
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIN DESCRIPTIONS*
* Pinout applies to both PDIP and SOIC
Clock Generator
XIN; XOUT - Crystal In; Crystal Out, Pins 4, 5.
Serial Output I/O
CS - Chip Select, Pin 1.
DRDY - Data Ready, Pin 16.
SDATA - Serial Data Output, Pin 15.
SCLK - Serial Clock Input, Pin 14.
DS125F2
DIFFERENTIAL ANALOG INPUT
DIFFERENTIAL ANALOG INPUT
A gate inside the chip is connected to these pins and can be used with a crystal to provide the
master clock for the device. Alternatively, an external (CMOS compatible) clock can be
supplied into the XIN pin to provide the master clock for the device. Loss of clock will put the
device into a lower powered state (approximately 70% power reduction).
This input allows an external device to access the serial port.
Data Ready goes low at the end of a digital filter convolution cycle to indicate that a new
output word has been placed into the serial port. DRDY will return high after all data bits are
shifted out of the serial port or two master clock cycles before new data becomes available if
the CS pin is inactive (high).
SDATA is the output pin of the serial output port. Data from this pin will be output at a rate
determined by SCLK. Data is output MSB first and advances to the next data bit on the falling
edges of SCLK. SDATA will be in a high impedance state when not transmitting data.
A clock signal on this pin determines the output rate of the data from the SDATA pin. This pin
must not be allowed to float.
BIPOLAR / UNIPOLAR
CRYSTAL OUT
CHIP SELECT
CRYSTAL IN
CALIBRATE
CONVERT
BP/UP
CONV
XOUT
AIN+
CAL
AIN-
XIN
CS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DRDY
SDATA
SCLK
VD+
GND
VA+
VREF-
VREF+
DATA READY
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
POSITIVE DIGITAL POWER
GROUND
POSITIVE ANALOG POWER
VOLTAGE REFERENCE INPUT
VOLTAGE REFERENCE INPUT
CS5509
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