MAX44000PMB1#

19-6335; Rev 0; 5/12 MAX44000PMB1 Peripheral Module General Description Features The MAX44000PMB1 peripheral module provides the necessary hardware to interface the MAX44000 ambient and infrared proximity sensor to any system that utilizes PmodK-compatible expansion ports configurable for I2C communication. The IC combines a wide-dynamic range ambient light sensor with an integrated infrared (IR) proximity sensor. The on-chip ambient light sensor has the ability to make wide dynamic range 0.03 lux to 65,535 lux measurements. An on-chip IR proximity detector is matched with an integrated IR LED driver. All readings are available on an I2C communication bus. S Ambient Light Sensor S Close Range Proximity Detector Refer to the MAX44000 IC data sheet for detailed information regarding operation of the IC. S Fully Assembled and Tested S Integrated Single-Pulse IR LED Driver S 6-Pin Pmod-Compatible Connector (I2C) S Example Software Written in C for Portability S Secondary Header Allows Daisy-Chaining of Additional Modules on the I2C Bus S RoHS Compliant S Proven PCB Layout Ordering Information appears at end of data sheet. MAX44000PMB1 Peripheral Module Pmod is a trademark of Digilent Inc. __________________________________________________________________ Maxim Integrated Products  1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX44000PMB1 Peripheral Module Component List DESIGNATION C1 QTY 1 DESCRIPTION DESIGNATION QTY R1, R2, R3 3 150I Q5% resistors (0603) 2.2FF Q10%, 10V X5R ceramic capacitor (0603) TDK C1608X5R1A225K/0.80 DESCRIPTION R4 1 33I Q5% resistor (0603) R5, R6, R7 3 4.7kI Q5% resistors (0603) C2 1 0.1FF Q10%, 16V X7R ceramic capacitor (0603) Murata GRM188R71C104KA01D U1 1 Ambient and IR proximity sensor (6 OTDFN-EP*) Maxim MAX44000GDT+ J1 1 6-pin right-angle male header — 1 PCB: EPCB44000PM1 J2 1 8-pin (2 x 4) straight male header 1 70mA, 1.6V, 860nm IR LED (MIDLED) OSRAM SFH4651 LED1 *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com OSRAM Opto Semiconductors 888-446-7726 www.osram-os.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX44000PMB1 when contacting these component suppliers. Detailed Description I2C Interface The MAX44000PMB1 peripheral module can interface to the host in one of two ways. It can plug directly into a Pmod-compatible port (configured for I2C) through connector J1, or in this case, other I2C boards can attach to the same I2C bus through connector J2. Table 1. Connector J1 (I2C Communication) PIN SIGNAL 1 N.C. Not connected 2 INT Interrupt. Open-drain output from module that is pulled low when an interrupt condition occurs (e.g., when ambient lux readings exceed threshold limits for a period greater than that set by the Time register). 3 SCL I2C serial clock 4 SDA I2C serial data 5 GND Ground 6 VCC Power supply I2C Interface (Daisy-Chaining Modules) Alternatively, the peripheral module can connect to other I2C-based Pmod modules using a 4-conductor ribbon cable connecting to the J2 connector. In this situation, pins 1-4 and 5-8 on J2 provide two connections to the I2C bus, allowing the module to be inserted into an I2C bus daisy-chain. Connector J1 provides connection of the module to the Pmod host. The pin assignments and functions adhere to the Pmod standard recommended by Digilent. See Table 1. The J2 connector allows the module to be connected through a daisy-chain from another I2C module and/or provide I2C and power connections to other I2C modules on the same bus. See Table 2. DESCRIPTION Table 2. Connector J2 (I2C Expansion) PIN SIGNAL DESCRIPTION 1 SCL I2C 2 SDA I2C serial data 3 GND Ground 4 VCC Power supply 5 SCL I2C serial clock (same as pin 1 above) 6 SDA I2C serial data (same as pin 2 above) 7 GND Ground 8 VCC Power supply serial clock __________________________________________________________________ Maxim Integrated Products  2 MAX44000PMB1 Peripheral Module The software project (for the SDK) contains several source files intended to accelerate customer evaluation and design. These include a base application (maximModules.c) that demonstrates module functionality and uses an API interface (maximDeviceSpecific Utilities.c) to set and access Maxim device functions within a specific module. Software and FPGA Code Example software and drivers are available that execute directly without modification on several FPGA development boards that support an integrated or synthesized microprocessor. These boards include the Digilent Nexys 3, Avnet LX9, and Avnet ZEDBoard, although other platforms can be added over time. Maxim provides complete Xilinx ISE projects containing HDL, Platform Studio, and SDK projects. In addition, a synthesized bit stream, ready for FPGA download, is provided for the demonstration application. The source code is written in standard ANSI C format, and all API documentation including theory/operation, register description, and function prototypes are documented in the API interface file (maximDeviceSpecificUtilities.h & .c). The complete software kit is available for download at www.maxim-ic.com. Quick start instructions are also available as a separate document. J1 1 2 3 4 5 6 R1 R2 R3 150 150 150 IN T SCL SD A GND V CC R5 4.7k J2 1 2 3 4 5 6 7 8 R4 33 R6 4.7k V CC2 C1 2.2uF V CC2 V CC2 GND V CC2 V CC2 LED 1 LED -SFH 4651 R7 GND C2 V CC2 SD A 4.7k SCL IN T EP V CC2 U1 MA X 44000GDT+ 1 6 V DD SD A 2 5 GND SCL 3 4 DRV IN T 0.1uF GND GND Figure 1. MAX44000PMB11 Peripheral Module Schematic __________________________________________________________________ Maxim Integrated Products  3 MAX44000PMB1 Peripheral Module Figure 2. MAX44000PMB11 Peripheral Module Component Placement Guide—Component Side Figure 3. MAX44000PMB11 Peripheral Module PCB Layout—Component Side Figure 4. MAX44000PMB11 Peripheral Module PCB Layout—Inner Layer 1 (Ground) __________________________________________________________________ Maxim Integrated Products  4 MAX44000PMB1 Peripheral Module Figure 5. MAX44000PMB11 Peripheral Module PCB Layout—Inner Layer 2 (Power) Figure 6. MAX44000PMB11 Peripheral Module PCB Layout—Solder Side Figure 7. MAX44000PMB11 Peripheral Module Component Placement Guide—Solder Side __________________________________________________________________ Maxim Integrated Products  5 MAX44000PMB1 Peripheral Module Ordering Information PART TYPE MAX44000PMB1# Peripheral Module #Denotes RoHS compliant. __________________________________________________________________ Maxim Integrated Products  6 MAX44000PMB1 Peripheral Module Revision History REVISION NUMBER REVISION DATE 0 5/12 DESCRIPTION Initial release PAGES CHANGED — Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ©  2012 Maxim Integrated Products 7 Maxim is a registered trademark of Maxim Integrated Products, Inc.