AS1524 EB austriamicrosystems, AS1524 EB Datasheet - Page 17

• Manufacturer Part Number: AS1524 EB
• Description: BOARD EVAL AS1524
• Manufacturer: austriamicrosystems

Specifications of AS1524 EB

• Number Of Adc's: 1
• Number Of Bits: 12
• Sampling Rate (per Second): 150k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: 0 ~ VREF
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AS1524
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption

AS1524/AS1525
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Figure 27. QSPI Serial Interface Timing (CPOL = CPHA = 0)
PIC16 and SSP Module and PIC17 Interface
The AS1524/AS1525 are compatible with a PIC16/PIC17 controllers, using the synchronous serial port (SSP) module
To establish SPI communication, connect the PIC16/PIC17 controllers as shown in
PIC17 as system master. This is done by initializing its synchronous serial port control register (SSPCON) and syn-
chronous serial port status register (SSPSTAT) to the bit patterns shown in
page
Figure 28. SPI Interface Connections for PIC16/PIC17 Controller
In SPI mode, the PIC16/PIC17 processor allow 8 bits of data to be synchronously transmitted and received simultane-
ously. Two consecutive 8-bit readings
AS1525. DOUT data transitions on the serial clock’s falling edge and is clocked into the processor on SCLK’s rising
edge.
The first 8-bit data stream contains the first 8 data bits starting with the MSB. The second data stream contains the
remaining bits, D3 through D0.
Figure 29. SPI Interface Timing with PIC16/PIC17 in Master Mode (CKE = 1. CKP = 0. SMP = 0, SSPM3:SSPM0
www.austriamicrosystems.com
CNVST
DOUT
SCLK
CNVST
DOUT
18.
SCLK
= 0001)
MSB
B11
MSB
B11
1
1
B10
B10
Sampling Instant
Sampling Instant
B9
B9
PIC16/
PIC17
(see Figure 29)
B8
1st Byte Read
4
B8
4
B7
B7
B6
SCLK
CNVST
DOUT
B6
Revision 1.02
are necessary to obtain the entire 12-bit result from the AS1524/
B5
B5
B4
CNVST
8
B4
DOUT
SCLK
8
B3
8
6
7
B3
AS1524/
AS1525
B2
B2
Table 6 on page 18
B1
B1
LSB
Figure 28
B0
2nd Byte Read
12
LSB
B0
12
High Z
High Z
and configure the PIC16/
and
Table 7 on
16
16
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