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GW1NS & GW1NSR & GW1NSE & GW1NSER Series of FPGA
Products Schematic Manual
UG292-1.0E
www.gowinsemi.com.en
13
(
15
)
port. BANK0/BANK1 of GW1NS-4 is MIPI input and BANK2 supports MIPI
output.
Note!
For GW1NS-2C/2 devices of LX or UX version, V
CCO0
is set to 1.2V when BANK0 is
used as MIPI input and V
CCO2
is set to 1.2V when BANK2 is used as MIPI output. And
the MIPI speed of LX version is only 60% of that of UX version.
When BANK0/BANK1 of GW1NS-4C/4 is used as MIPI input, V
CCO0
/V
CCO1
need to be
set to 1.2V, and when BANK2 is used as MIPI output, V
CCO2
needs to be set to 1.2V;
When V
CCX
is set to 1.8 V, the speed of MIPI can only reach 60% of the speed of MIPI
when V
CCX
is set to 2.5V/3.3V.
ADC
GW1NS-2C/2 series of FPGA products integrate an eight-channel
single-ended 12 bits SAR ADC. It is a medium-speed ADC with low-power,
low-leakage current and high-speed.
Dynamic Performance
Slew Rate: Max. 1MHz
Dynamic range: >81 dB SFDR
,
>62 db SINAD
Linear performance: INL<1 LSB, DNL<0.5 LSB, no missing codes
ADC Reference Voltage
The reference voltage can be enabled or disabled by configuring
parameters.
VREF_EN=1, enabled;
VREF_EN=0, disabled, and Vref is provided by Vccx.
When Vref is enabled, there are two ways to provide Vref: internal and
external.
The internal is provided by Vccx and supports seven reference
voltages by configuring VREF_SEL. The external is provided by VREF.
Note!
It is recommended to add 10uF capacitance for ADC signal pin.
It is recommended to use external reference voltage
USB
GW1NS-2C/2 is embedded with USB2.0 PHY with 480Mbps, USB1.1
1.5/12Mbps compatible, plug-and-play, hot-plug.
Note!
The VBUS pin of FPGA chip needs to be connected to the VBUS of USB connector.
The ID pin of FPGA chip needs to be connected to the ID of USB connector.
The XIN and XOUT pins of FPGA chip need to be connected to the external 12Mhz
crystal.
The REXT pin of FPGA chip must be connected to the pull-down 12.7K with
resistance of 1% accuracy.