SNAU291A October 2023 – September 2024
The LMKDB1108EVM can be configured for multiple modes using on board MCU, and can be powered via USB or an external power supply. The following sections describes power, logic, clock input, and output interfaces on the EVM and how to configure the EVM accordingly.
Some of the key components and the reference designator are noted in Table 3-1.
Item No. | Reference Designators | Description |
---|---|---|
1 | U9 | LMKDB1108. |
2A | J8 | External VDD option through SMA port. |
2B | JP12 | Jumper header to select between external or on-board 3.3V USB supply option. |
3 | J10, J11 | SMA ports for clock input (CLKIN_P, CLKIN_N). |
4 | J13 through J28 | SMA Ports for Clock Outputs (CLKXX_P, CLKXX_N). |
5 | JP3, JP4 | SADR0_tri and SADR1_tri jumper header option to select different address as defined in Table 3-7. |
6 | JP5 | SBEN pin header jumper to enable or disable SBI interface during power-up. |
7 | JP1 | TCA_RESET pin header jumper for Input/Output (IO) Expander needs to be pulled-up for proper operation. Default configuration is set to pull-up (header connected to 1-2). |
8 | JP2 | CLKPWRGD_PD# pin header jumper to enable or disable the LMKDB1108. |
9 | JP6 | SLEWRATE_SEL pin header jumper to select fast or slow slew rate option. |
10A | J1 | SBI Connector header jumper for daisy chain option. |
10B | J2 | SBI_PRIMARY header jumper option to disable the U3A, U3B, U3C, U3D buffer part of the EVM. |
11 | U4 | USB power option LDO. |
12 | U1A, U1B, U1C, U1D | Hi-Z buffer part used on SBI lines for daisy chain configuration. |
13 | U3 | MUX part to choose between MCU and IO expander option on OE#0, OE#1, and OE#4 pins. |
14 | U2 | IO Expander used for all OE# pin controls. |
15 | U8 | MSP430F5529IPN MCU. |