Board Design - Renesas RC32012A Manual

RC32012A Evaluation Kit Manual
1.

Board Design

The following diagram identifies the various components of the evaluation board: input and output SMA
connectors, power supply jacks, and some jumper settings necessary for the board operations. Detailed
descriptions are included below.
▪ Input SMA connectors – There are five differential inputs labeled CLK0/nCLK0 - CLK4/nCLK4. Each input
clock can be configured differentially (LVDS, PECL 2.5V, and PECL 3.3V) or in single-ended format (CMOS).
▪ Output SMA connectors – There are 12 outputs labeled as Q0/nQ0 - Q11/nQ11. Each output clock can be
configured differentially (LVDS, LVPECL, or user-defined amplitude) or in single-ended format (LVCMOS – in-
phase or out-of-phase).
▪ GPIO switch, LEDs, and Test points – There are seven GPIOs available. Each GPIO can be set a "low" or
"high" level (if input) or displayed with an LED (if output). Some GPIOs are used to set the chip in a certain
working condition on power-up. For more information, see "Table 18. GPIO Pin Usage at Start-Up" in the
RC32012A Datasheet.
▪ USB connector – A USB mini connector connects the evaluation board to a PC for GUI communications. No
power is consumed from the USB connector other than to power the FTDI USB device.
▪ VDDQx voltage selection jumpers – Each output voltage can be individually supplied with 1.8V, 2.5V, or 3.3V.
These jumpers are used to select the voltage for the output voltages.
▪ Reset button: A small button is used to reset the board.
▪ OSCI Input connector – An SMA connector, J45, is provided to optionally supply a clock signal to overdrive
the crystal.
▪ OCXO/TCXO Reference (Optional) – An OCXO/TCXO footprint, output at J82. It can be connected to J46
(below) as the reference for System DPLL.
R31UH0010EU0102 Rev.1.02
Apr 20, 2022
Figure 2. RC32012A Evaluation Board – Detailed
Page 3