Datasheet

UG-139 Evaluation Board User Guide
Rev. A | Page 8 of 16
EVALUATION BOARD OVERVIEW
MOTHERBOARD
SET I/O VOLTAGE
2.8V (DEFAULT) OR 1.8V
TORCH AND STROBE: USE PUSH-BUTTONS FOR
EXTERNAL TORCH OR FLASH. BUTTONS MUST
BE ENABLED FROM SOFTWARE GUI.
CY68013 A MICROCONTROLLER:
PROVIDES USB-TO-I
2
C CONVERSION
USB MINI B TYPE
CONNECTOR
ADP3303: 3.3V, 200mA
LDO SUPPLY FOR
CY68013A
USB SUPPLY
FOR DAUGHTERBOARD
(FOR DEMONSTRATION)
ADP1712 LDOs FOR VDDIO
2.8V OR 1.8V
CONNECTS MOTHERBOARD
SIGNALS TO DAUGHTERBOARD
09024-009
Figure 9. Motherboard
The ADP1650 motherboard provides the interface signals to the
ADP1650 flash driver IC. These signals are controlled via the
evaluation software GUI.
The Cypress Semiconductor Corporation CY68013A provides
the USB interface and I
2
C signals. The selected I
2
C frequency is
400 kHz. The EEPROM U5 M24C64 provides the USB address
of the board.
Typically, the daughterboard is inserted directly into the 20-pin
header of the motherboard. For temperature measurements,
however, the ribbon cable provided with the evaluation kit must
be used to connect the motherboard and the daughterboard
because the Cypress CY68013A is not rated at −40°C.