ANALOG DEVICES EVAL-ADM1030, EVAL-ADM1031 Service Manual

查询EVAL-ADM1030供应商查询EVAL-ADM1030供应商

Evaluation Board for ACPI Temperature

a

Preliminary T echnical Data

FEATURES
Optimized for Pentium III
Guardbanding
Programmable (ACPI) and Automatic Fan Speed Control
Automatic Fan Speed Control allows control Independant
of CPU Intervention after initial setup.
Control Loop minimizes Acoustic Noise and Battery
Consumption
RPM Feedback mode to maintain constant fan speed
Remote Temperature measurement accurate to 1°C using
Remote Diode (2 channels for ADM1031, 1 for ADM1030)

0.125°C Resolution on External Temperature Channels
Local Temperature Sensor with 0.25°C resolution
Pulse Width Modulation Fan Control (PWM) (two fans for
ADM1031, one fan for ADM1030)
Programmable PWM Frequency
Programmable PWM Duty Cycle
Tach Fan Speed Measurement (One Channel for
ADM1030, Two for ADM1031 )
Analog Inputs to measure Fan Speed of 2-wire fans (using
Sense Resistor)
2-Wire Serial System Management Bus(SMBus) with ARA
Over-Temperature
Programmable
Configurable Offsets for Temperature Channels
3V to 5.5V Supply Range
Shutdown Mode to Minimize Power Consumption
Limit Comparisons of all Monitored Values

APPLICATIONS
Notebook PC’s, Network Computers and Personal
Computers
Microprocessor Based Office Equipment.

INTRODUCTION

The ADM1030/31 evaluation board allows the
ADM1030/31 PC Temperature Monitor and PWM Fan
Controller to be quickly and easily evaluated using a
personal computer. Using the evaluation board and the
accompanying software the ADM1030/31 can be
interfaced to any personal computer running Windows
95 or Windows 98 via the computer’s parallel port.

The evaluation board allows the input and output
functions of the ADM1030/31 to be exercised without the
need for external components. The software allows control
and monitoring of the ADM1030/31’s internal registers.

INTINT

INT Output Pin

INTINT



:- Allows Reduced



THERMTHERM

THERM Output Pin

THERMTHERM

PRELIMINARY

TECHNICAL

DATA

Monitor and PWM Fan Controller

EV AL-ADM1030/31

THE ADM1030/31

The following is a brief description of the ADM1030/31
and a system overview. Further information can be found
on the ADM1030 and ADM1031 datasheet.

The ADM1030 and ADM1031 function in a very similar
manner. The main difference is that the ADM1031 is dual
channel and the ADM1030 is single channel i.e. the
ADM1031 has a second remote temperature measurement
channel, a second fan speed measurement channel and a
second PWM fan speed control channel.

The ADM1030/31 is an ACPI compliant two/three
channel digital thermometer and under/over temperature
alarm, for use in personal computers. A PWM Fan
Control Output controls the speed of cooling fans. The
speed of these fans may be monitored using the Tach
Inputs. A dedicated Fan Speed Control Loop provides
control even without CPU Intervention.

The device has a programmable INT output to indicate
error conditions. The THERM pin is a failsafe output for
over temperatire conditions.

EVALUATION SYSTEM PACKAGE CONTENTS

The evaluation system contains the following items

1. The ADM1030/31 Evaluation Board

2. Centronics Cable

3. CD containing this application note, datasheet and the
ADM1030/31 evaluation software.

EVALUATION BOARD HARDWARE

The ADM1030/31 evaluation board contains the
following main components which can be identified from
the block diagram, printed circuit board silk screen and
schematic diagram of Figures1, 2 and 3 overleaf.

1. ADM1030 or ADM1031 IC

2. 1 or 2 NPN sensor transistors (depending on whether

ADM1030 or ADM1031 IC is used)

3. LED indicators

4. Interface Buffers

5. Connector for parallel interface.

6. Test Connector for connecting to remote thermal

sensor (J7)

7. Fan (1 or 2 depending on IC).

REV. PrA 10/200 0

Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.

One T ec hnology Wa y, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] Wor ld Wide Web Site: http://www .analog.com
Fax: [phone] Analog Devices, Inc., 2000

EVAL-ADM1030/31

V

DD

TACH

Preliminary T echnical Data

V

DD

Q2

NDT3055L

D
D

V

D
D

V

D
D

V

V

DD

PWMOUT

S2

D1

RED

THERM

D2

RED

FAN_FAULT

Figure1. ADM1030 Evaluation Board Block Diagram

PRELIMINARY

SDATA

TACH / AIN

ADM10 30

SCLK

V

CC

GND

THERM

ADD

FAN_FAULT

INT

D1+

D1-

D4

RED

INT

BUFFERS

S3

NPN

SENSOR

S5

V

DD

TECHNICAL

DATA

36-WAY
CENTRONICS
CONNECTOR

(J2)*

J5-10

TEST CONNECTOR FOR

CONNECTING O FF BO ARD

REMOTE SENSOR

J5-9

EL
LL

RA
PA

T
R

PO

PC

Figure2. ADM1030 Evaluation Board Picture

–2– REV. PrA

Preliminary T echnical Data

V

DD

TACH

EVAL-ADM1030/31

V

DD

TACH

NDT3055L

Q3

V

DD

Q2

NDT3055L

V

DD

S2

TACH2 / AIN

PWM2OUT

SDATA

INT

ADM10 31

SCLK

PWM1OUT

S1

D
D

V

D
D

V

D
D

V

D1

RED

THERM

D2

RED

FAN_FAULT

PRELIMINARY

TACH1 / AIN

V

CC

GND

THERM

FAN_FAULT

ADD

D1+

D1-

D2+

D2-

D4

RED

INT

36-WAY

BUFF E R S

S3

NPN

SENSOR

S4

NPN

SENSOR

S5

TEST CONNECTOR FOR

BOARD REMOTE SENSOR

TEST CONNECTOR FOR

BOARD REMOTE SENSOR

V

DD

CENTRONICS
CONNECTOR

(J2)*

J7-12

CONNECTING O FF

J7-11

J7-10

CONNECTING O FF

J7-9

EL
LL

RA
PA

T
R

PO

PC

Figure1. ADM1031 Evaluation Board Block Diagram

TECHNICAL

DATA

Figure2. ADM1031 Evaluation Board Picture

–3–REV. PrA

EVAL-ADM1030/31

Preliminary T echnical Data

PRELIMINARY

TECHNICAL

DATA

Figure3. ADM1030/31 Evaluation Board Schematic

–4– REV. PrA

Preliminary T echnical Data

EVAL-ADM1030/31

PRELIMINARY

TECHNICAL

DATA

Figure3. ADM1030/31 Evaluation Board Schematic

–5–REV. PrA