CY8C5368AXI-106 Cypress Semiconductor Corp, CY8C5368AXI-106 Datasheet - Page 53
CY8C5368AXI-106
Manufacturer Part Number
CY8C5368AXI-106
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY8C5368AXI-106.pdf
(106 pages)
Specifications of CY8C5368AXI-106
Lead Free Status / Rohs Status
Compliant
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CY8C5368AXI-106
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8.9.1 Current DAC
The current DAC (IDAC) can be configured for the ranges 0 to
32 µA, 0 to 256 µA, and 0 to 2.04 mA. The IDAC can be
configured to source or sink current.
8.9.2 Voltage DAC
For the voltage DAC (VDAC), the current DAC output is routed
through resistors. The two ranges available for the VDAC are 0
to 1.024 V and 0 to 4.096 V. In voltage mode any load connected
to the output of a DAC should be purely capacitive (the output of
the VDAC is not buffered).
8.10 Up/Down Mixer
In continuous time mode, the SC/CT block components are used
to build an up or down mixer. Any mixing application contains an
input signal frequency and a local oscillator frequency. The
polarity of the clock, Fclk, switches the amplifier between
inverting or noninverting gain. The output is the product of the
input and the switching function from the local oscillator, with
frequency components at the local oscillator plus and minus the
signal frequency (Fclk + Fin and Fclk - Fin) and reduced-level
frequency components at odd integer multiples of the local
Document Number: 001-66237 Rev. *A
Reference
Source
PRELIMINARY
Scaler
Figure 8-10. DAC Block Diagram
oscillator frequency. The local oscillator frequency is provided by
the selected clock source for the mixer.
Continuous time up and down mixing works for applications with
input signals and local oscillator frequencies up to 1 MHz.
Figure 8-11. Mixer Configuration
sc_clk
Vin
Vref
I
I
PSoC
1x , 8x , 64x
1x , 8x , 64x
source
sink
R
Range
Range
mix
0 20 k or 40 k
®
3R
R
5: CY8C53 Family Datasheet
0
1
Vout
C2 = 1.7 pF
C1 = 850 fF
R
mix
sc_clk
0 20 k or 40 k
Iout
Page 53 of 106
Vout
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