ams-OSRAM AS621x-EK Evaluation Kits User Guide
- June 12, 2024
- ams OSRAM
Table of Contents
ams-OSRAM AS621x-EK Evaluation Kits
Product Information
- Product Name: AS62xx Eval Kit
- Product Model: AS621x-EK, AS622x-EK
- Published by: ams OSRAM Group
- Downloaded from: Arrow.com
- User Guide: UG000452
Introduction
The AS62xx Eval Kit is a small PCB that allows for a simple and quick
evaluation of the AS62xx digital temperature sensors without the need to
design a custom PCB. This fully assembled board includes the AS62xx
temperature sensor and its necessary external components.
Kit Content
The kit includes the following items:
- Item: AS62xx-EK
- Comment: Eval Kit
Ordering Information
- Ordering Codes:
- AS6221-EK
- AS6212-EK
- AS6214-EK
- AS6218-EK
Getting Started:
To get started with the AS62xx Eval Kit, refer to Figure 3 for the visual
representation of the kit.
Hardware Description
The P1 connector on the board provides all relevant signals that can be easily
wired to a microcontroller and the power supply. Refer to Figure 4 for the
pinout details. Hardware Architecture: Refer to Figure 5 for the hardware
architecture of the AS62xx Eval Kit.
AS62xx Configuration
The AS62xx Eval Kit has different jumper settings for configuring the device
address. Refer to the table in this section for the binary and hexadecimal
values corresponding to each jumper setting.
Power Supply and Connections
Refer to Figure 7 for the connections between the MCU and AS62xx.
Software Description
No specific information is provided in the text-extract regarding the software
description.
Product Usage Instructions
- Getting started with the AS62xx Eval Kit: – Refer to Figure 3 for a visual representation of the kit.
- Hardware Connection
- Connect the P1 connector on the AS62xx Eval Kit to the microcontroller and power supply. –
- Refer to Figure 4 for the pinout details of the P1 connector.
- AS62xx Configuration: – Set the jumper settings on the AS62xx Eval Kit to configure the device address.
- Refer to the table in the “AS62xx Configuration” section for the binary and hexadecimal values corresponding to each jumper setting.
Note: Detailed instructions on software usage are not provided in the text-extract. Please refer to the complete user manual for comprehensive instructions on software usage.
Introduction
The AS62xx Eval Kit is a small PCB allowing a simple and quick evaluation of the AS62xx digital temperature sensors without the need to design a custom PCB. This small form factor board is fully assembled with the AS62xx temperature sensor and its necessary external components
Kit Content
This kit contains following material listed in Figure 1:
| Pos. | Item | Comment |
|---|---|---|
| 1 | AS62xx-EK | Eval Kit |
Ordering Information
Figure 2:
Getting Started
The AS62xx Eval Kit is ideal for rapid setup of a digital temperature sensor. To get started connect the board to your microcontroller as described in Figure 4. Add a command in your source code to request two bytes from the selected I²C address. Finally convert the returned data as described in chapter 4.2 to get the actual temperature value.
Figure 3:
Eval Kit
Hardware Description
The P1 connector does provide all relevant signals, which can be easily wired to a microcontroller and to the power supply.
Figure 4:
Eval Kit Pinout Caption
| Pin | Symbol | Description | Info |
|---|---|---|---|
| 1 | SCL | I²C clock | Use R1 if pull-up is required |
| 2 | SDA | I²C data | Use R2 if pull-up is required |
| 3 | GND | Ground | |
| 4 | VDD | Power supply | According datasheet |
| 5(1) ALERT | Digital output pin | Alert interrupt output |
- Do not connect pin 5 to VSS. This pin should only be used for the ALERT functionality
Hardware Architecture
Figure 5:
AS62xx Eval Kit
R1, R2 and R3 are pull-up resistors for the I²C interface and the ALERT pin. Depending on the application, it is recommended to either populate the decoupling capacitor C1.
AS62xx Configuration
With the address selector, it is possible to choose the I²C address of the
device. The included jumpers are an easy way of setting the I²C address of the
sensor. Both address selectors must not be left open.
Figure 6:
I²C Address
Power Supply and Connections
The PCB has to be connected to an external microcontroller. P1 is populated
with a 1×5 pin header and is required for power supply as well as I²C
communication. In addition to that, it can be used to monitor the interrupt
status via pin 5 (IRQ).
Figure 7:
MCU and AS62xx Connections
Software Description
The AS62xx has 4 data registers. With the use of the index register, it is possible to address the specific data register. When powered up the address register is set to 0x0.
Figure 8:
Data Registers
For additional configuration settings, the Config register (0x1) has to be addressed. Please refer to the datasheet for details.
Figure 9:
Configuration Register
| Address | Symbol | Register | Description |
|---|---|---|---|
| 0x0 | TVAL | Contains the temperature value |
0x1 CONFIG Configuration Register
Configuration settings of the
| | | temperature sensor
0x2| TLOW| TLOW Register| Low temperature threshold value
0x3| THIGH| THIGH Register| High temperature threshold value
Index Register
The index register contains 8-bit, but only D0 and D1 are used.
Figure 10:
Index Register
Bit| D7| D6| D5| D4| D3| D2| D1|
D0
---|---|---|---|---|---|---|---|---
Value| 0| 0| 0| 0| 0| 0| Address| Bits
Temperature Register
Figure 11:
Temperature Register
D15 D14| D13| D12| D11| D10| D9| D8|
D7| D6| D5| D4| D3| D2| D1| D0
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
T15 T14| T13| T12| T11| T10| T9| T8| T7| T6| T5| T4| T3| T2| T1| T0
MSB Byte| | | | | | | LSB| Byte| | | | | |
The temperature register contains the digitally converted temperature value.
It consists of 2 bytes and can be converted according to the following
formula:
Positive values= |Value| / LSB
Negative values= Complement( |Value| / LSB ) + 1
Example +75°C
75°C/ 0.0078125 °C=9600=Binary 0010 0101 1000 0000=Hex 2800
Example -40°C
|−40°? /0.0078125 °? + 1 = 5120 + 1 = ?????? 0001 0100 0000 0000 + 1 = 1110
1100 0000 0000 = ??? ??00
Figure 12:
Temperature Conversion Examples
Temperature (°C)| Digital Output (Binary)| Digital Output
(Hex)
---|---|---
100.0| 0011 0010 0000 0000| 3200
75.0| 0010 0101 1000 0000| 2580
50.0| 0001 1001 0000 0000| 1900
25.0| 0000 1100 1000 0000| 0C80
0.125| 0000 0000 0001 0000| 0010
0.0078125| 0000 0000 0000 0001| 0001
0.0| 0000 0000 0000 0000| 0000
-0.0078125| 1111 1111 1111 1111| FFFF
-0.125| 1111 1111 1111 0000| FFF0
-25.0| 1111 0011 1000 0000| F380
-40.0| 1110 1100 0000 0000| EC00
Schematics, Layers and BOM
The schematics, layout and BOM of the adapter board are shown below for reference.
Schematics
The schematics of the board is shown below in Figure 13
Figure 13:
Schematics
Layout and Board Dimensions
The PCB layout is shown below in Figure 14 and Figure 15
The board dimensions are shown below in Figure 16
Figure 16:
Dimensions
Bill of Materials
The BOM of the board is shown below in Figure 17
Figure 17:
BOM
| Position | Name | Value |
|---|---|---|
| 1 | R3 | 10 K |
| 2 | R2 | 10 K |
| 3 | R1 | 10 K |
| 4 | P3 | Header 2X2 |
| 5 | P2 | Header 4X2 |
| 6 | P1 | Header 1X5 |
| 7 | C1 | 10 nF |
| 8 | AS62xx | AS62xx-WLCSP6 |
Revision Information
- Page and figure numbers for the previous version may differ from page and figure numbers in the current revision.
- Correction of typographical errors is not explicitly mentioned.
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Demo Kit Manual • PUBLIC
UG000452 • v2-00 • 2020-Nov-19