Component - Waveform Generator (WaveDAC8) V2.0

®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
2.0
Features
 Supports standard and arbitrary waveform generation
 Arbitrary waveform may be drawn manually or imported from file
 Output may be voltage or current, sink or source
 Voltage output can be buffered or direct from DAC
 Hardware selection between two waveforms
 Waveforms may be up to 4000 points
 Predefined sine, triangle, square, and sawtooth waveforms
General Description
The WaveDAC8 component provides a simple and fast solution for automatic periodic waveform
generation. A high-level interface allows you to select a predefined waveform or a custom
arbitrary waveform. Two separate waveforms can be defined then selected with an external pin
to create a modulated output. The input clock can also be used to change the sample rate or
modulate the output.
When to use a WaveDAC8
Use the WaveDAC8 anytime a periodic waveform needs to be generated.
Input/Output Connections
This section describes the various input and output connections for the WaveDAC8. An asterisk
(*) in the list of I/Os indicates that the I/O may be hidden on the symbol under the conditions
listed in the description of that I/O.
Wave – analog output (the terminal label is hidden)
The Wave terminal is connected directly to the DAC’s output, except when the buffered range is
chosen, then the WaveDAC’s output is buffered. It may be routed to any analog compatible pin
on the PSoC.
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document Number: 001-88815 Rev. *A
Revised September 26, 2014
8-Bit Waveform Generator (WaveDAC8)
®
PSoC Creator™ Component Datasheet
ws – Input
The Wave Select (ws) input selects which waveform will be generated. It can be used to switch
quickly between two waveforms to generate an FSK signal.
clock – Input*
The clock input allows you to use an alternate clock source. When internal clock is selected, this
input is not visible.
wc1 – Output
The Wave Complete 1 (wc1) signal goes high for two bus clocks at the end of waveform 1.
wc2 – Output
The Wave Complete (wc2) signal goes high for two bus clocks at the end of waveform 2.
Parameters and Setup
Drag a WaveDAC8 component onto your design and double-click it to open the Configure dialog.
The WaveDAC8 component provides the following parameters.
Page 2 of 20
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
Range Selection
This parameter selects the output mode and range of the internal DAC.
Range
Mode
Ouput
Step Size
VDAC 0 – 1.020 V
Voltage
0 to 1.020 Volts
4 mV
VDAC 0 – 1.020 V (Buffered)
Voltage
0 to 1.020 Volts
4 mV
VDAC 0 – 4.080 V
Voltage
0 to 4.080 volts
16 mV
VDAC 0 – 4.080 V (Buffered)
Voltage
0 to 4.080 volts
16 mV
ISink 0 – 2.040 mA
Current Sink
0 to 2.040 mA
8 uA
ISink 0 – 255 uA
Current Sink
0 to 255 uA
1 uA
ISink 0 – 32 uA
Current Sink
0 to 32 uA
0.125 uA
ISource 0 – 2.040 mA
Current Source
0 to 2.040 mA
8 uA
ISource 0 – 255 uA
Current Source
0 to 255 uA
1 uA
ISource 0 – 32 uA
Current Source
0 to 32 uA
0.125 uA
Timing
Clock Source (Internal / External )
Use this parameter to select whether the clock source is internal or external. When an internal
clock is selected, the clock pin will not be visible.
Sample Rate (kSPS)
Use this parameter to select the sampling frequency rate in kSPS. The maximum sample rate is
6 MSPS for Current Mode, 1 MSPS for Voltage Mode 1 V ranges, and 250 kSPS for Voltage
Mode 4 V ranges. The Waveform Period and Frequency can be calculated as follows:
Waveform _ Period =
Samples
SampleRate
, Waveform _ Frequency =
Samples
SampleRate
Actual Rate (kSPS)
This read-only field displays the actual calculated sample frequency rate. This may vary from the
requested sample rate depending on the ability to create the clock based on the integer division
of a higher frequency clock in the system.
Document Number: 001-88815 Rev. *A
Page 3 of 20
8-Bit Waveform Generator (WaveDAC8)
®
PSoC Creator™ Component Datasheet
Waveform 1 & 2
Both waveforms have identical parameters:
Wave Type
This parameter selects one of six waveforms, four are fixed and two allow the user to provide a
custom waveform:






Sine
Square
Triangle
Sawtooth
Arbitrary (Draw)
Arbitrary (From File)
Amplitude
This parameter defines the peak-to-peak amplitude for the non-arbitrary waveforms.
Offset
This parameter defines the offset of the middle for the non-arbitrary waveforms relative to zero
level (0V or 0mA).
Phase
This parameter defines the phase shift (in degrees) of the waveform relative to the generation
start point.
Samples
This parameter defines the number of waveform data samples.
Page 4 of 20
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
Resources
The WaveDAC8 uses one viDAC8 block, digital demux, DFF trigger, two DMA channels, and an
optional clock and/or opamp:
Resource Type
UDB
Macrocells
DMA
Channels
VIDAC
Fixed
Blocks
Opamp Fixed
Blocks
Digital Clock
Dividers
Internal clock, VDAC mode not buffered
3
2
1
0
1
Internal clock, VDAC mode buffered
3
2
1
1
1
Internal clock, IDAC mode
3
2
1
0
1
External clock, VDAC mode not buffered
3
2
1
0
0
External clock, VDAC mode buffered
3
2
1
1
0
External clock, IDAC mode
3
2
1
0
0
Configuration
The Flash/RAM usage is:
PSoC 3 (Keil_PK51)
Configuration
PSoC 5LP (GCC)
Flash Bytes
SRAM Bytes
Flash Bytes
SRAM Bytes
Internal clock, VDAC not buffered
851
11
850
10
Internal clock, VDAC buffered
902
12
932
10
Internal clock, IDAC
884
11
914
10
External clock, VDAC not buffered
815
11
794
10
External clock, VDAC buffered
866
12
876
10
External clock, IDAC
848
11
858
10
The listed flash sizes do not include waveform data arrays (2*100 bytes by default).
Document Number: 001-88815 Rev. *A
Page 5 of 20
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8-Bit Waveform Generator (WaveDAC8)
PSoC Creator™ Component Datasheet
Application Programming Interface
Application Programming Interface (API) routines allow you to configure the component using
software. The following table lists and describes the interface to each function. The subsequent
sections cover each function in more detail.
By default, PSoC Creator assigns the instance name "WaveDAC8_1" to the first instance of a
component in a given design. You can rename the instance to any unique value that follows the
syntactic rules for identifiers. The instance name becomes the prefix of every global function
name, variable, and constant symbol. For readability, the instance name used in the following
table is "WaveDAC8".
Functions
Function
Description
void WaveDAC8_Start(void)
Starts the DAC and DMA channels.
void WaveDAC8_Stop(void)
Disables DAC and DMA channels.
void WaveDAC8_Init(void)
Initializes or restores the component according to the customizer
Configure dialog settings.
void WaveDAC8_Enable(void)
Activates the hardware and begins component operation.
void WaveDAC8_Wave1Setup(uint8 *
wavePtr, uint16 sampleSize)
Sets the array and size of array used for waveform generation for
waveform 1.
void WaveDAC8_Wave2Setup(uint8 *
wavePtr, uint16 sampleSize)
Sets the array and size of array used for waveform generation for
waveform 2.
void WaveDAC8_StartEx(uint8 * wavePtr1,
uint16 sampleSize1, uint8 * wavePtr2,
uint16 sampleSize2)
Sets the arrays and sizes of arrays used for waveform generation
for both waveforms and starts the DAC and DMA channels.
void WaveDAC8_SetSpeed(uint8 speed)
Set drive mode / speed of the DAC.
void WaveDAC8_SetRange(uint8 range)
Set current or voltage range.
void WaveDAC8_SetValue(uint8 value)
Set 8-bit DAC value.
void WaveDAC8_DacTrim(void)
Set the trim value for the given range.
void WaveDAC8_Sleep(void)
Stops and saves the user configuration.
void WaveDAC8_Wakeup(void)
Restores and enables the user configuration.
void WaveDAC8_SaveConfig(void)
This function saves the component configuration. This function will
also save the current component parameter values, as defined in
the Configure dialog or as modified by appropriate APIs. This
function is called by the WaveDAC8_Sleep() function.
void WaveDAC8_RestoreConfig(void)
This function restores the component configuration. This function
will also restore the component parameter values to what they
were before calling the WaveDAC8_Sleep() function.
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Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
Global Variables
Function
Description
uint8 WaveDAC8_initVar
The initVar variable is used to indicate initial configuration of this component.
This variable is prepended with the component name. The variable is initialized
to zero and set to 1 the first time WaveDAC8_Start() is called. This allows for
component initialization without reinitialization in all subsequent calls to the
WaveDAC8_Start() routine.
If reinitialization is required, then the WaveDAC8_Init() function can be called
before the WaveDAC8_Start() or WaveDAC8_Enable() function.
void WaveDAC8_Start(void)
Description:
Performs all of the required initialization for the component and enables power to the block.
The first time the routine is executed, the range, polarity (if any), and power (speed)
settings are configured for the operating mode selected in the design. When called to
restart the WaveDAC8 following a WaveDAC8_Stop() call, the current component
parameter settings are retained.
When the external clock is used – this function should be called before the clock is started
to cause correct waveform generation. Otherwise the first sample may be undefined.
Parameters:
None
Return Value:
None
Side Effects:
None
void WaveDAC8_Stop(void)
Description:
Turn off the WaveDAC8 block.
Parameters:
None
Return Value:
None
Side Effects:
Does not affect WaveDAC8 type or power settings
Document Number: 001-88815 Rev. *A
Page 7 of 20
8-Bit Waveform Generator (WaveDAC8)
®
PSoC Creator™ Component Datasheet
void WaveDAC8_Wave1Setup(uint8 *WavePtr, uint16 SampleSize)
Description:
Selects a new waveform array for the waveform 1 output. The WaveDAC8_Stop function
should be called prior to calling this function and WaveDAC8_Start should be called to
restart waveform.
Parameters:
uint8 *WavePtr: Pointer to array containing waveform data
uint16 SampleSize: Size of waveform array pointed to by WavePtr. (Maximum sample size
is 4000, minimum is 4)
Return Value:
None
Side Effects:
Does not affect WaveDAC8 type or power settings
void WaveDAC8_Wave2Setup(uint8 *WavePtr, uint16 SampleSize)
Description:
Select a new waveform array for the waveform 2 output. The WaveDAC8_Stop function
should be called prior to calling this function and WaveDAC8_Start should be called to
restart waveform.
Parameters:
uint8 * WavePtr: Pointer to array containing waveform data
uint16 SampleSize: Size of waveform array pointed to by WavePtr. (Maximum sample size
is 4000, minimum is 4)
Return Value:
None
Side Effects:
Does not affect WaveDAC8 type or power settings
void WaveDAC8_StartEx(uint8 *WavePtr1, uint16 SampleSize1, uint8
*WavePtr1, uint16 SampleSize1)
Description:
Select new waveform arrays for both waveform outputs and starts the WaveDAC8. The
WaveDAC8_Stop function should be called prior to calling this function.
Parameters:
uint8 *WavePtr1: Pointer to array containing waveform1 data
uint16 SampleSize1: Size of waveform1 array pointed to by WavePtr1. (Maximum sample
size is 4000, minimum is 4)
uint8 * WavePtr2: Pointer to array containing waveform2 data
uint16 SampleSize2: Size of waveform2 array pointed to by WavePtr2. (Maximum sample
size is 4000, minimum is 4)
Return Value:
None
Side Effects:
Does not affect WaveDAC8 type or power settings
Page 8 of 20
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
void WaveDAC8_Init(void)
Description:
Initializes or restores the component according to the customizer Configure dialog settings.
It is not necessary to call WaveDAC8_Init() because the WaveDAC8_Start() API calls this
function and is the preferred method to begin component operation.
Parameters:
None
Return Value:
None
Side Effects:
All registers will be set to values according to the customizer Configure dialog.
void WaveDAC8_Enable(void)
Description:
Activates the hardware and begins component operation. It is not necessary to call
WaveDAC8_Enable() because the WaveDAC8_Start() API calls this function, which is the
preferred method to begin component operation.
Parameters:
None
Return Value:
None
Side Effects:
None
void WaveDAC8_SetSpeed(uint8 speed)
Description:
Sets the drive mode / speed to one of the settings.
Parameters:
uint8 speed: See the following table for valid speed settings.
Power Setting
Notes
WaveDAC8_LOWSPEED
Lowest active power and slowest slew rate.
WaveDAC8_HIGHSPEED
Highest power and fastest slew rate.
Return Value:
None
Side Effects:
None
Document Number: 001-88815 Rev. *A
Page 9 of 20
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8-Bit Waveform Generator (WaveDAC8)
PSoC Creator™ Component Datasheet
void WaveDAC8_SetRange (uint8 range)
Description:
Sets the DAC range to one of the settings.
Parameters:
uint8 range:
For VDAC mode:
Range Setting
Notes
WaveDAC8_VDAC8_RANGE_1V
1.02V
WaveDAC8_VDAC8_RANGE_4V
4.08V
For IDAC mode:
Range Setting
Notes
WaveDAC8_IDAC8_RANGE_32uA
32 uA.
WaveDAC8_IDAC8_RANGE_255uA
255 uA.
WaveDAC8_IDAC8_RANGE_2mA
2.04 mA
Return Value:
None
Side Effects:
The range value defines are applicable only for their DAC modes, e.g. if you try to use
WaveDAC8_IDAC8_RANGE_32uA in VDAC mode, then a compilation error will be
generated.
void WaveDAC8_SetValue (uint8 value)
Description:
Sets the output of the DAC to the desired value. It is preferable to use this function when
the clock is stopped. If this function is used during normal operation (clock is running), the
predefined waveform may be interrupted.
Parameters:
uint8 value: 8-bit DAC value from 0 to 255.
Return Value:
None
Side Effects:
None
void WaveDAC8_DacTrim(void)
Description:
Sets the proper predefined trim calibration value for the present DAC mode and range.
Parameters:
None
Return Value:
None
Side Effects:
None
Page 10 of 20
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
void WaveDAC8_Sleep(void)
Description:
This is the preferred API to prepare the component for sleep. The WaveDAC8_Sleep() API
saves the current component state. Then it calls the WaveDAC8_Stop() function and calls
WaveDAC8_SaveConfig() to save the hardware configuration.
Call the WaveDAC8_Sleep() function before calling the CyPmSleep() or the
CyPmHibernate() function. Refer to the PSoC Creator System Reference Guide for more
information about power management functions.
Parameters:
None
Return Value:
None
Side Effects:
None
void WaveDAC8_Wakeup(void)
Description:
This is the preferred API to restore the component to the state when WaveDAC8_Sleep()
was called. The WaveDAC8_Wakeup() function calls the WaveDAC8_RestoreConfig()
function to restore the configuration. If the component was enabled before the
WaveDAC8_Sleep() function was called, the WaveDAC8_Wakeup() function will also reenable the component.
Parameters:
None
Return Value:
None
Side Effects:
Calling the WaveDAC8_Wakeup() function without first calling the WaveDAC8_Sleep() or
WaveDAC8_SaveConfig() function may produce unexpected behavior.
void WaveDAC8_SaveConfig(void)
Description:
This function saves the component configuration. This function will also save the current
component parameter values, as defined in the Configure dialog or as modified by
appropriate APIs. This function is called by the WaveDAC8_Sleep() function.
Parameters:
None
Return Value:
None
Side Effects:
None
Document Number: 001-88815 Rev. *A
Page 11 of 20
8-Bit Waveform Generator (WaveDAC8)
®
PSoC Creator™ Component Datasheet
void WaveDAC8_RestoreConfig(void)
Description:
This function restores the component configuration. This function will also restore the
component parameter values to what they were before calling the WaveDAC8_Sleep()
function.
Parameters:
None
Return Value:
None
Side Effects:
None
MISRA Compliance
This section describes the MISRA-C:2004 compliance and deviations for the component. There
are two types of deviations defined:


project deviations – deviations that are applicable for all PSoC Creator components
specific deviations – deviations that are applicable only for this component
This section provides information on component-specific deviations. Project deviations are
described in the MISRA Compliance section of the System Reference Guide along with
information on the MISRA compliance verification environment.
The WaveDAC8 component does not have any specific deviations.
Sample Firmware Source Code
PSoC Creator provides numerous example projects that include schematics and example code
in the Find Example Project dialog. For component-specific examples, open the dialog from the
Component Catalog or an instance of the component in a schematic. For general examples,
open the dialog from the Start Page or File menu. As needed, use the Filter Options in the
dialog to narrow the list of projects available to select.
Refer to the "Find Example Project" topic in the PSoC Creator Help for more information.
Functional Description
The core of WaveDAC8 is the DAC. It will either be a standard VDAC8 (voltage DAC) or IDAC8
(Current DAC) depending on the range selected. The two DMA channels Wave1_DMA and
Wave2_DMA are used to transfer the waveform array data in memory to either the IDAC or
VDAC. When the user configures a waveform with the user interface, the component
automatically configures each of the DMA channels to transfer the data. Both of these DMA
channels transfer data to the DAC, but only one can operate at a time. The wave select “ws”
input selects which of these DMA channels is triggered by the clock, using the demultiplexer
“DMA Select” to route the signal to the corresponding DMA channel. The two wave complete
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Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
outputs “wc1” and “wc2” can be used to signal that the DMA channel has transferred the last
value from the waveform table, or that one full waveform period has been completed.
Block Diagram and Configuration
System
Memory
WaveDAC8
Data Flow Diagram
Output DAC
viDAC8
Waveform 1
Wave
Out
DAC
Waveform 2
Wave
Select
The optional output buffer eliminates the load influence on the output voltage in VDAC mode.
DC and AC Electrical Characteristics
DC Characteristics (VDAC Mode) for CY8C38 Family
Parameter
Description
Conditions
Resolution
Vout
Min
Typ
Max
Units
-
-
8
bits
Output voltage range,
code = 255
1 V scale
-
1.02
-
Volt
4 V scale, Vdda = 5 V
-
4.08
-
Volt
INL
Integral non linearity
1 V scale
-
±2.1
±2.5
LSB
DNL
Differential non linearity
CL=15 pF
-
±0.3
±1
LSB
Rout
Output resistance
1 V scale
-
4
-
kΩ
(for non-buffered ranges)
4 V scale
-
16
-
kΩ
Monotonicity
-
-
Yes
-
Zero scale error
-
0
±0.9
LSB
Vos
Document Number: 001-88815 Rev. *A
Page 13 of 20
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8-Bit Waveform Generator (WaveDAC8)
Parameter
Eg
TC_Eg
Idd
Description
PSoC Creator™ Component Datasheet
Min
Typ
Max
Units
1 V scale
-
-
±2.5
%
4 V scale
-
-
±2.5
%
Temperature coefficient,
gain error
1 V scale
-
-
0.03
%FSR / °C
4 V scale
-
-
0.03
%FSR / °C
Operating current
Low speed mode
-
-
100
μA
High speed mode
-
-
500
μA
Gain error
Conditions
DC Characteristics (IDAC Mode) for CY8C38 Family
Parameter
Description
Conditions
Min
Typ
Resolution
Iout
Output current
Range = 2mA, code = 255,
Max
Units
8
bits
-
2.04
-
mA
Range = 2mA, high speed mode,
code = 255, VDDA ≤2.7 V,
Rload = 300 Ω
-
2.04
-
mA
Range = 255 µA, code = 255,
Rload = 600 Ω
-
255
-
μA
VDDA ≥2.7 V, Rload = 600 Ω
Range = 32 µA, code = 255,
Rload = 600 Ω
31.875
Monotonicity
INL
Integral non linearity
Yes
Sink mode, range = 255 µA,
Codes 8 – 255, Rload = 2.4 kΩ,
Cload = 15 pF
-
±0.9
±1
LSB
±1.2
±1.6
LSB
±0.3
±1
LSB
±0.3
±1
LSB
-
0
±1
LSB
Range = 2 mA, 25 °C
-
-
±2.5
%
Range = 255 µA, 25 ° C
-
-
±2.5
%
Range = 32 µA, 25 ° C
-
-
±3.5
%
Source mode, range = 255 µA,
Codes 8 – 255, Rload = 2.4 kΩ,
Cload = 15 pF
DNL
Differential non linearity
Sink mode, range = 255 µA,
Rload = 2.4 kΩ, Cload = 15 pF
-
Source mode, range = 255 µA,
Rload = 2.4 kΩ, Cload = 15 pF
Ezs
Zero scale error
Eg
Gain error
Page 14 of 20
μA
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
Parameter
Description
Conditions
TC_Eg
Temperature coefficient
of gain error
Min
Typ
Max
Units
Range = 2 mA
0.04
% / °C
Range = 255 µA
0.04
% / °C
Range = 32 µA
0.05
% / °C
Vcompliance Dropout voltage, source
or sink mode
Voltage headroom at max current,
Rload to VDDAor Rload to VSSA,
Vdiff from VDDA
1
-
-
V
IDD
Low speed mode, source mode,
range = 32 µA
-
44
100
μA
Low speed mode, source mode,
range = 255 µA,
33
100
μA
Low speed mode, source mode,
range = 2 mA
33
100
μA
Low speed mode, sink mode,
range = 32 µA
36
100
μA
Low speed mode, sink mode,
range = 255 µA
33
100
μA
Low speed mode, sink mode,
range = 2 mA
33
100
μA
High speed mode, source mode,
range = 32 µA
310
500
μA
High speed mode, source mode,
range = 255 µA
305
500
μA
High speed mode, source mode,
range = 2 mA
305
500
μA
High speed mode, sink mode,
range = 32 µA
310
500
μA
High speed mode, sink mode,
range = 255 µA
300
500
μA
High speed mode, sink mode,
range = 2 mA
300
500
μA
Operating current,
code = 0
DC Characteristics (VDAC Mode) for CY8C58LP family
Parameter
Description
Conditions
Min
Typ
Max
Units
-
8
-
bits
1 V scale
-
1.02
-
Volt
4 V scale, Vdda = 5 V
-
4.08
-
Volt
Resolution
Vout
Output voltage range, code = 255
Document Number: 001-88815 Rev. *A
Page 15 of 20
®
8-Bit Waveform Generator (WaveDAC8)
PSoC Creator™ Component Datasheet
Parameter
Description
Conditions
Min
Typ
Max
Units
INL
Integral non linearity
1 V scale
-
±2.1
±2.5
LSB
4 V scale
-
±2.1
±2.5
LSB
1 V scale
-
±0.3
±1
LSB
4 V scale
-
±0.3
±1
LSB
1 V scale
-
4
-
kΩ
4 V scale
-
16
-
kΩ
Monotonicity
-
-
Yes
-
Vos
Zero scale error
-
0
±0.9
LSB
Eg
Gain error
1 V scale
-
-
±2.5
%
4 V scale
-
-
±2.5
%
Temperature coefficient, gain error 1 V scale
-
-
0.03
%FSR / °C
4 V scale
-
-
0.03
%FSR / °C
Low speed mode
-
-
100
μA
High speed mode
-
-
500
μA
DNL
Rout
TC_Eg
Idd
Differential non linearity
Output resistance
Operating current
DC Characteristics (IDAC Mode) for CY8C58LP family
Parameter
Description
Conditions
Min
Typ
Resolution
Iout
Output current
Page 16 of 20
8
bits
-
2.04
-
mA
Range = 2mA, high speed mode,
code = 255, VDDA ≤2.7 V,
Rload = 300 Ω
-
2.04
-
mA
Range = 255 µA, code = 255,
Rload = 600 Ω
-
255
-
μA
31.87
5
Monotonicity
Integral non linearity
Units
Range = 2mA, code = 255,
VDDA ≥2.7 V, Rload = 600 Ω
Range = 32 µA, code = 255,
Rload = 600 Ω
INL
Max
μA
Yes
Sink mode, range = 255 µA, Codes
8 – 255, Rload = 2.4 kΩ,
Cload = 15 pF
-
±0.9
±1
LSB
Source mode, range = 255 µA,
Codes 8 – 255, Rload = 2.4 kΩ,
Cload = 15 pF
-
±1.2
±1.6
LSB
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
Parameter
DNL
Description
Differential non linearity
Ezs
Zero scale error
Eg
Gain error
TC_Eg
Temperature coefficient of
gain error
Vcompliance Dropout voltage, source or
sink mode
Document Number: 001-88815 Rev. *A
8-Bit Waveform Generator (WaveDAC8)
Conditions
Min
Typ
Max
Units
Source mode, range = 32µA,
Codes 8 - 255, Rload = 20 kΩ,
Cload = 15 pF
-
±0.9
±2
LSB
Sink mode, range = 32µA,
Codes 8 - 255, Rload = 20 kΩ,
Cload = 15 pF
-
±0.9
±2
LSB
Source mode, range = 2mA,
Codes 8 - 255, Rload = 600 Ω,
Cload = 15 pF
-
±0.9
±2
LSB
Sink mode, range = 2mA,
Codes 8 - 255, Rload = 600 Ω,
Cload = 15 pF
-
±0.6
±1
LSB
Sink mode, range = 255 µA,
Rload = 2.4 kΩ, Cload = 15 pF
-
±0.3
±1
LSB
Source mode, range = 255 µA,
Rload = 2.4 kΩ, Cload = 15 pF
-
±0.3
±1
LSB
Source mode, range = 31.875 µA,
Rload = 20 kΩ, Cload = 15 pF
-
±0.2
±1
LSB
Sink mode, range = 31.875 µA,
Rload = 20 kΩ, Cload = 15 pF
-
±0.2
±1
LSB
Source mode, range = 2.0 4 mA,
Rload = 600 Ω, Cload = 15 pF
-
±0.2
±1
LSB
Sink mode, range = 2.0 4 mA,
Rload = 600 Ω, Cload = 15 pF
-
±0.2
±1
LSB
-
0
±1
LSB
Range = 2 mA, 25 °C
-
-
±2.5
%
Range = 255 µA, 25 ° C
-
-
±2.5
%
Range = 32 µA, 25 ° C
-
-
±3.5
%
Range = 2 mA
0.045
%/
°C
Range = 255 µA
0.045
%/
°C
Range = 32 µA
0.05
%/
°C
-
V
Voltage headroom at max current,
Rload to Vdda or Rload to Vssa,
Vdiff from Vdda
1
-
Page 17 of 20
®
8-Bit Waveform Generator (WaveDAC8)
PSoC Creator™ Component Datasheet
Parameter
Description
Conditions
Min
Typ
Max
Units
IDD
Operating current, code = 0
Slow mode, source mode,
range = 32 µA
-
44
100
μA
Slow mode, source mode,
range = 255 µA,
33
100
μA
Slow mode, source mode,
range = 2 mA
33
100
μA
Slow mode, sink mode,
range = 32 µA
36
100
μA
Slow mode, sink mode,
range = 255 µA
33
100
μA
Slow mode, sink mode,
range = 2 mA
33
100
μA
Fast mode, source mode,
range = 32 µA
310
500
μA
Fast mode, source mode,
range = 255 µA
305
500
μA
Fast mode, source mode,
range = 2 mA
305
500
μA
Fast mode, sink mode,
range = 32 µA
310
500
μA
Fast mode, sink mode,
range = 255 µA
300
500
μA
Fast mode, sink mode,
range = 2 mA
300
500
μA
AC Characteristics (VDAC Mode) for both CY8C38 and CY8C58LP families
Parameter
Fdac
TsettleP
TsettleN
Description
Min
Typ
Max
Units
Update rate
1V mode
-
-
1
Msps
Update rate
4V mode
-
-
250
Ksps
Settling time to 0.1%, step
25% to 75%
1 V scale, Cload = 15 pF
-
0.45
1
µs
4 V scale, Cload = 15 pF
-
0.8
3.2
µs
1 V scale, Cload = 15 pF
-
0.45
1
µs
4 V scale, Cload = 15 pF
-
0.7
3
µs
Range = 1 V, High speed mode, VDDA= 5 V, 10 kHz
750
-
nV/sqrtHz
Settling time to 0.1%, step
75% to 25%
Voltage noise
Page 18 of 20
Conditions
Document Number: 001-88815 Rev. *A
®
PSoC Creator™ Component Datasheet
8-Bit Waveform Generator (WaveDAC8)
AC Characteristics (IDAC Mode) for both CY8C38 and CY8C58LP families
Parameter
Description
Conditions
Fdac
Update rate
Tsettle
Settling time to 0.5 LSB
Current noise
Min
Typ
Max
Units
-
-
8
Msps
Range = 32 µA or 255 µA,
full scale transition, High
speed mode, 600Ω15-pF load
-
-
125
ns
Range = 255 µA, source
mode, High speed mode,
VDDA= 5 V, 10 kHz
-
340
-
pA/sqrtHz
Component Errata
This section lists known problems with the component.
Cypress
ID
191257
Component
Version
v2.0
Problem
Workaround
This component was modified without a version
number change in PSoC Creator 3.0 SP1. For
further information, see Knowledge Base Article
KBA94159 (www.cypress.com/go/kba94159).
No workaround is necessary.
There is no impact to designs.
Component Changes
This section lists the major changes in the component from the previous version.
Version
Description of Changes
Reason for Changes / Impact
2.0.a
Edited datasheet to add Component Errata section.
Document that the component was changed,
but there is no impact to designs.
2.0
First release of component as part of PSoC Creator.
This component was previously made
available in the Cypress Community Forums
and in Application Note AN69133.
Document Number: 001-88815 Rev. *A
Page 19 of 20
8-Bit Waveform Generator (WaveDAC8)
®
PSoC Creator™ Component Datasheet
© Cypress Semiconductor Corporation, 2013-2014. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the
use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to
be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
PSoC® is a registered trademark, and PSoC Creator™ and Programmable System-on-Chip™ are trademarks of Cypress Semiconductor Corp. All other trademarks or registered trademarks
referenced herein are property of the respective corporations.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and
foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create
derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in
conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as
specified above is prohibited without the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein.
Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in lifesupport systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application
implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Page 20 of 20
Document Number: 001-88815 Rev. *A
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