SI535X-20QFN-EVB Silicon Laboratories Inc, SI535X-20QFN-EVB Datasheet - Page 3

• Manufacturer Part Number: SI535X-20QFN-EVB
• Description: EVALUATION BOARD FOR SI535X
• Manufacturer: Silicon Laboratories Inc

Specifications of SI535X-20QFN-EVB

• New! Us2012 Catalog Page: Class-D Audio Driver_Precision Clock ICs
• Main Purpose: Timing, Clock Generator
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: Si5350, Si5351
• Primary Attributes: USB Powered or External Supply
• Secondary Attributes: Status LEDs
• Minimum Operating Temperature: + 85 C
• Technology Type: Evaluation Board
• For Use With/related Products: Si535x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-1992

2. Jumpers
The following jumpers are available on the evaluation board:
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3. Status LEDs
There are three status LEDs on the evaluation board:
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4. Clock Inputs
The EVB can operate in asynchronous mode using the onboard 27 MHz crystal, synchronous mode using an
external CMOS clock source, or both modes if both PLLs in the device are utilized. An SMA connector is provided
to interface an external clock source to CLKIN. Additionally, CLKIN can be applied using the test hooks TP39/
TP49.
VDD—Connects the Si5350/51 pin to the VDD voltage regulator (normally installed).
VDD VOLT_SEL—Allows user to select a VDD voltage of 2.5 V or 3.3 V (default 3.3 V).
VDDOA—Connects the Si5350/51 pin to the VDDOA voltage regulator (normally installed).
VDDOA VOLT_SEL—Allows user to select a VDDOA voltage of 2.5 V or 3.3 V (default 3.3 V).
VDDOB—Connects the Si5350/51 pin to the VDDOB voltage regulator (normally installed).
VDDOB VOLT_SEL—Allows user to select a VDDOB voltage of 2.5 V or 3.3 V (default 3.3 V).
VDDOC—Connects the Si5350/51 pin to the VDDOC voltage regulator (normally installed).
VDDOC VOLT_SEL—Allows user to select a VDDOC voltage of 2.5 V or 3.3 V (default 3.3 V).
VDDOD—Connects the Si5350/51 pin to the VDDOD voltage regulator (normally installed).
VDDOD VOLT_SEL—Allows user to select a VDDOD voltage of 2.5 V or 3.3 V (default 3.3 V).
SCL—Connects the Si5350/51 SCL pin to the I
connection to the MCU and allows the user to feed in an external I
SDA—Connects the Si5350/51 SDA pin to the I
connection to the MCU and allows the user to feed in an external I
EXP POWER—Allows user to select between 5 V USB supply and 5 V external supply on J17. See Figure 1 for
jumper locations.
RDY (Green)—Indicates that the EVB is operating normally. This LED should always be on.
BUSY (Green)—Indicates that the on-board MCU is communicating with the device and/or the USB host.
INTR (Red)—Indicates device or EVB fault condition (also on when DUT hasn't been programmed).
Preliminary Rev. 0.1
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C bus from the MCU. Removing the jumper breaks the
C bus from the MCU. Removing the jumper breaks the
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2
Si535x-20QFN-EVB
C signal to the device.
C signal to the device.
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