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19-1736; Rev 0; 7/00

Triple/Dual-Mode

CDMA LNA/Mixers

________________General Description

____________________________Features

? 2.7V Operation

The MAX2323/MAX2325 are low-noise amplifier (LNA)

plus mixer ICs optimized for code-division multiple-access

(CDMA) applications in both cellular and PCS bands. The

MAX2323 addresses dual-band, triple-mode CDMA appli-

cations by providing switched signal paths for cellular FM,

cellular CDMA, and PCS CDMA. The MAX2325 is a cellu-

lar-band dual-mode version.

? Dual Band, Triple Mode

? Three LNA Gain Settings (Cellular)

? Two LNA Gain Settings (PCS)

? 18mA in Low-Gain Mode

19.5mA in Paging and Midgain Mode

26.5mA in High-Gain, High-Linearity Mode

To optimize cellular-band dynamic range at minimum cur-

rent, the MAX2323/MAX2325 implement four LNA states:

high gain/high linearity, high gain/low linearity, midgain,

and low gain. In high-gain/high-linearity mode, the

adjustable high-intercept LNA minimizes desensitization in

the presence of a large interfering signal. For the other

gain states, the LNA current is reduced to improve stand-

by time.

16.5mA in FM Mode, High-Gain, Low-Linearity

Mode

? 2.5dB (typ) Cascade Noise Figure

? Adjustable LNA IIP3, +5dBm to +13dBm

? Ultra-Small 28-Pin Package (5mm x 5mm)

The CDMA mixers are designed for high linearity, low

noise, and differential IF outputs, while the FM mixer is

designed for lower current and single-ended output. Each

band is implemented with a separate mixer to optimize

performance for the specific band.

Ordering Information

PART

TEMP. RANGE

-40°C to +85°C

PIN- PACKAGE

28 QFN

MAX2323EGI

MAX2325EGI

MAX2323EVKIT

28 QFN

The MAX2323/MAX2325 can also be used in TDMA,

EDGE, and W-CDMA phones.

28 QFN

Pin Configuration/

Functional Diagram

________________________Applications

Dual-Band, Triple-Mode PCS/Cellular Phones

TOP VIEW

Dual-Mode Cellular Phones

28

27

26

25

24

23

22

1

21

RLNA

RBIAS

20 CDMA+

19

Typical Application Circuits appear at end of data sheet.

2

PLNAIN

GND

3

4

5

6

CDMA-

CLNAIN

SLEEP

G2

18 GND

MAX2323

17 BAND

16 V

CC

G1

FMOUT

15

7

8

9

10

11

12

13

14

QFN

________________________________________________________________ Maxim Integrated Products

1

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

Triple/Dual-Mode

CDMA LNA/Mixers

ABSOLUTE MAXIMUM RATINGS

CC

Digital Input Voltage to GND......................-0.3V to (V

LNA Input Level .....................................................................1Vp

LO, Mixer Input Levels .....................................................+5dBm

Digital Input Current ......................................................... 10mA

V

to GND ...............................................................0.3V, +4.3V

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range.............................-65°C to +150°C

Lead Temperature (soldering, 10s) ................................ +300°C

+ 0.3V)

CC

Continuous Power Dissipation (T = +70°C)

A

28-Pin QFN (derate 28.5mW/°C

above T = +70°C) ...................................................2000mW

A

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

DC ELECTRICAL CHARACTERISTICS

(V

= +2.7V to +3.6V, R

= 20k?, R

= 24k?, T = -40°C to +85°C, no RF applied. Typical values are V

= 2.75V and

CC

RBIAS

RLNA

A

CC

T

= +25°C, unless otherwise noted.)

A

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

PCS CDMA MODE (MAX2323)

Midgain mode

20.5

22

24

25.5

30

Operating Supply Current

High-gain, low-linearity idle mode

High-gain, high-linearity mode

mA

25.5

CELLULAR CDMA MODE (MAX2323/MAX2325)

Low-gain mode

18.0

19.5

26.5

21.5

23.5

31.5

Midgain mode

Operating Supply Current

FM MODE (MAX2323/MAX2325)

Operating Supply Current

mA

High-gain, low-linearity idle mode

High-gain, high-linearity mode

Low-gain mode

15

18

20

28

Midgain mode

16.5

23.5

mA

High-gain, low-linearity mode

High-gain, high-linearity mode

SHUTDOWN MODE

Shutdown Supply Current

ALL MODES

SLEEP = high

1

25

μA

Digital Input Logic High

Except SLEEP input

2.0

V

-

CC

SLEEP Input Logic High

0.6

Digital Input Logic Low

Digital Input Current High

Digital Input Current Low

0.6

5

V

μA

-25

2

_______________________________________________________________________________________

Triple/Dual-Mode

CDMA LNA/Mixers

AC ELECTRICAL CHARACTERISTICS

(MAX2323 EV kit, F

= 1960MHz, F

= 881MHz, F = 110MHz, high-side LO, 50? system, R

= 20k?,

RBIAS

PLNAIN

CLNAIN

IF

R

RLNA

= 24k?. Typical values are V

= 2.75V, T = +25°C. LO input power = -7dBm, LOW = 0V, HIGH = V , unless otherwise

CC A CC

noted.) (Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

OVERALL PERFORMANCE

Low-Band RF Frequency Range

(Note 2)

850

1800

800

950

MHz

High-Band RF Frequency

Range

MAX2323 (Note 2)

(Note 2)

2200

1150

2300

Low-Band LO Frequency Range

High-Band LO Frequency

Range

MAX2323 (Note 2)

(Note 2)

1600

IF Frequency Range

LO Input Level

40

-7

400

0

MHz

dBm

100? input impedance

-5

CELLULAR LNA PERFORMANCE (MAX2323/MAX2325)

CDMA AND FM HIGH-GAIN, HIGH-LINEARITY MODES

Gain

T

= T

to T

MAX

14.5

15.5

1.7

17

dB

A

MIN

Noise Figure

1.9

T

= +25°C

9

10.5

A

IIP3

dBm

= T

to T

7.5

A

MIN

MAX

CDMA HIGH-GAIN, LOW-LINEARITY PAGING MODE, AND FM HIGH-GAIN MODE

Gain

T

= T

to T

13

14.5

1.7

5

16

dB

A

MIN

MAX

LNA Noise Figure

1.9

T

= +25°C

2.5

2.7

A

LNA IIP3

(Note 3)

dBm

= T

to T

A

MIN

MAX

CDMA AND FM MIDGAIN MODES

Gain

T

= T

to T

4.5

6

8

dB

A

MIN

MAX

Noise Figure

3.3

10

3.5

T

= +25°C

8.5

5

A

IIP3

(Note 3)

dBm

= T

to T

A

MIN

MAX

CDMA AND FM LOW-GAIN MODES

Gain

T

= T

to T

-4.5

13

-3.5

7.5

-1.5

8.5

dB

A

MIN

MAX

Noise Figure

IIP3

(Note 3)

17.5

dBm

PCS LNA PERFORMANCE (MAX2323)

CDMA HIGH-GAIN, HIGH-LINEARITY MODE

Gain

T

= T

13.5

14.5

1.9

8

15.5

2.1

dB

A

MIN

MAX

Noise Figure

T

= +25°C

7

A

IIP3

(Note 3)

dBm

= T

to T

5.5

A

MIN

MAX

_______________________________________________________________________________________

3

Triple/Dual-Mode

CDMA LNA/Mixers

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2323 EV kit, F

= 1960MHz, F

= 881MHz, F = 110MHz, high-side LO, 50? system, R

= 20k?,

RBIAS

PLNAIN

CLNAIN

IF

R

RLNA

= 24k?. Typical values are V

= 2.75V, T = +25°C. LO input power = -7dBm, LOW = 0V, HIGH = V , unless otherwise

CC A CC

noted.) (Note 1)

PARAMETER

CDMA HIGH-GAIN, LOW-LINEARITY PAGING MODE

CONDITIONS

MIN

TYP

MAX

UNITS

Gain

T

= T

to T

12.5

14

1.9

5.5

14.5

2.1

dB

A

MIN

MAX

LNA Noise Figure

LNA IIP3

T

= +25°C

(Note 3)

A

4.5

3.0

dBm

= T

to T

MAX

A

MIN

CDMA MIDGAIN MODE

Gain

T

= T

to T

-2.0

12

-1.0

5.6

-0.5

6.0

dB

A

MIN

Noise Figure

IIP3

(Note 3)

13.5

dBm

CELLULAR MIXER PERFORMANCE (MAX2323/MAX2325)

CDMA, ALL MODES

Gain

T

= T

to T

11.5

3.5

13

7.5

4.8

14.5

8.5

dB

A

MIN

MAX

Noise Figure

IIP3

(Note 3)

dBm

FM MODE

Gain

8.5

1.5

10

10.5

5

11.5

dB

Noise Figure

IIP3

dBm

PCS MIXER PERFORMANCE (MAX2323)

CDMA HIGH-GAIN, HIGH-LINEARITY MODE

Gain

T

= T

to T

12

13.5

7.9

4

15.5

8.5

dB

A

MIN

MAX

Noise Figure

IIP3

T

= T

(Note 3)

1.5

dBm

A

MIN

MAX

Note 1: Devices are production tested for functionality at frequencies stated; 30 units from 3 independent wafer lots, when one lot

was at the upper process extreme, one lot was nominal, and one lot was at the lower process extreme, were characterized.

The resulting standard deviation therefore includes process variations. Data sheet limits are 3σ from the mean.

Note 2: Operation over this frequency range requires the ports to be rematched for the desired operating range. Performance at

various frequencies is indicated by the S-parameter data in Tables 3–7.

Note 3: Specifications are based on R

= 20k?. I

for all LNAs (except HGHL) and mixers are inversely proportional to R

.

BIAS

CC

RBIAS

IIP3 can be traded for I

by selecting other values of R

.

CC

RBIAS

4

_______________________________________________________________________________________

Triple/Dual-Mode

CDMA LNA/Mixers

Pin Description

NAME

FUNCTION

MAX2323

MAX2325

LNA Bias-Setting Pin. For nominal bias, connect a 24k? resistor to ground. This

resistor value can be adjusted to alter the linearity of the input LNA in high-gain,

high-linearity CDMA modes.

1

RLNA

—

2, 10, 23

N.C.

No Connection. Leave this pin floating.

High-Band RF Input Port. Blocking capacitor is required, which may be used as part of

the matching network.

2

—

PLNAIN

3, 8, 11,

12, 13, 18,

24, 25, 27

3, 8, 11, 12,

13, 17, 18,

24, 25, 27

GND

Ground

Low-Band RF Input Port. Blocking capacitor is required, which may be used as part of

the matching network.

4

CLNAIN

5

6

7

5

6

7

SLEEP

G2

Logic Input. High shuts off entire device.

Logic Input. See Tables 1 and 2 for details.

G1

Low-Frequency LO Input Port. Requires blocking capacitor, which may be used as

part of an optional matching network.

9

LOLIN

High-Frequency LO Input Port. Requires blocking capacitor, which may be used as

part of an optional matching network.

10

14

15

—

14

15

LOHIN

MODE

FMOUT

Logic Input. See Tables 1 and 2 for details.

FM IF Output Port. Requires a pull-up inductor and a DC blocking capacitor, which

may be used as part of the matching network.

16

17

16

V

2.7V to 3.6V Supply Pin. Must be capacitively bypassed near the pin.

Logic Input. High selects high band (PCS). Low selects low band (cellular).

CC

—

BAND

CDMA-,

CDMA+

Differential Output Port for CDMA Mode. Requires pull-up inductors and blocking

capacitors, which may be used as part of the matching network.

19, 20

21

19, 20

21

Bias Setting Pin. For nominal bias, connect a 20k? resistor to ground. This resistor

value can be adjusted to alter the linearity of the mixers in all modes and the LNA in all

modes except high gain and high linearity.

RBIAS

Low-Band Mixer Input Port. Requires blocking capacitor, which may be used as part of

the matching network.

22

23

22

CMIXIN

PMIXIN

High-Band Mixer Input Port. Requires blocking capacitor, which may be used as part

of the matching network.

—

High-Band LNA Output Port. This port requires an external pull-up inductor and series

capacitor as part of the matching network.

26

—

PLNAOUT

—

V

2.7 to 3.6V Supply Pin. Bypassing is not necessary at this pin.

26

CC

_______________________________________________________________________________________

5

Triple/Dual-Mode

CDMA LNA/Mixers

Pin Description (continued)

MAX2323

28

MAX2325

28

NAME

CLNAOUT

GND

FUNCTION

Low-Band LNA Output Port. This port requires an external pull-up inductor and series

capacitor as part of the matching network.

Slug

Ground

Table 1. MAX2323 Operational Modes

FUNCTION

CTRL PIN

MODES

PCS Band, High Gain,

High Linearity (HGHL)

P

C

√

1

0

X

1

0

1

0

1

0

PCS Band, High Gain,

Low Linearity (Paging

Mode) (HGLL)

√

PCS Band, Midgain

(MGHL)

√

Cellular Band CDMA

Mode, High Gain, High

Linearity (HGHL)

√

Cellular Band CDMA,

High Gain, Low Linearity

(Paging Mode) (HGLL)

C

√

0

1

0

1

0

Cellular Band, CDMA

Mode, Midgain (MGHL)

C

√

0

1

0

1

0

Cellular Band, CDMA

Mode, Low Gain (LGHL)

√

Cellular Band, FM Mode,

High Gain, Low Linearity

(HGLL)

C

√

0

1

0

Cellular Band, FM Mode,

Midgain

C

√

0

1

0

1

0

Cellular Band, FM Mode,

Low Gain

Shutdown

Undefined

—

X

1

X

1

X

1

0

—

Cellular Band, FM Mode,

High Gain, High Linearity

(HGHL)

C

√

—

√

0

X: Don’t care

6

_______________________________________________________________________________________

Triple/Dual-Mode

CDMA LNA/Mixers

Table 2. MAX2325 Operational Modes

FUNCTION

CTRL PIN

MODES

Cellular Band CDMA

Mode, High Gain, High

Linearity (HGHL)

C

√

1

0

1

0

Cellular Band CDMA,

High Gain, Low Linearity

(Paging Mode) (HGLL)

√

Cellular Band, CDMA

Mode, Midgain (MGHL)

C

√

1

0

1

0

Cellular Band, CDMA

Mode, Low Gain (LGHL)

√

Cellular Band, FM Mode,

High Gain, Low Linearity

(HGLL)

C

√

0

1

0

Cellular Band, FM Mode,

Midgain

√

Cellular Band, FM Mode,

Low Gain

C

√

0

X

1

X

1

X

0

1

Shutdown

—

Cellular Band, FM Mode,

High Gain, High Linearity

(HGHL)

√

0

X: Don’t care

_______________________________________________________________________________________

7

Triple/Dual-Mode

CDMA LNA/Mixers

Table 3. Cellular LNA S Parameters in High-Gain High-Linearity Mode

FREQUENCY

(MHz)

S11

(MAG)

S11

(PHASE)

S21

(MAG)

S21

(PHASE)

S12

(MAG)

S12

(PHASE)

S22

(MAG)

S22

(PHASE)

700

750

800

850

900

950

1000

0.623

0.627

0.629

0.631

0.632

0.635

-81.9

-84.3

-86.6

-89.0

-91.4

-93.7

-96.0

4.58

4.30

4.06

3.70

3.50

3.39

3.08

79.8

78.0

74.8

72.3

72.2

68.7

66.3

0.046

0.048

0.049

0.051

0.052

0.053

59.5

60.6

60.9

61.4

62.1

61.3

62.7

0.746

0.748

0.750

0.749

0.751

0.753

-29.5

-30.2

-30.9

-31.1

-32.3

-33.0

-33.5

Table 4. PCS LNA S Parameters in High-Gain High-Linearity Mode

FREQUENCY

(MHz)

S11

(MAG)

S11

(PHASE)

S21

(MAG)

S21

(PHASE)

S12

(MAG)

S12

(PHASE)

S22

(MAG)

S22

(PHASE)

1700

1750

1800

1850

1900

1950

2000

2050

2100

2150

2200

2250

2300

2350

2400

0.671

0.675

0.685

0.689

0.694

0.696

0.700

0.706

0.712

0.717

0.718

0.721

0.724

0.730

0.735

-125.8

-126.9

-128.9

-130.8

-132.7

-134.3

-135.8

-137.3

-138.9

-140.4

-141.9

-143.2

-144.5

-145.6

-146.9

5.77

5.66

5.56

5.63

5.54

5.50

5.41

5.33

5.24

5.08

4.99

4.78

4.64

4.45

109.2

109.3

107.2

106.3

104.7

102.7

101.2

99.0

0.062

0.064

0.065

0.066

0.068

0.070

0.072

0.073

0.074

0.077

0.081

0.085

90.4

89.9

89.1

88.7

89.3

90.6

91.9

92.6

92.7

93.0

94.2

96.2

98.3

99.2

99.4

0.796

0.800

0.808

0.812

0.817

0.820

0.826

0.832

0.839

0.844

0.845

0.849

0.852

0.858

0.862

-50.3

-50.7

-51.7

-52.6

-53.6

-54.4

-55.3

-56.3

-57.4

-58.8

-60.1

-61.4

-62.9

-64.5

-66.5

97.4

95.0

93.3

91.2

89.0

87.7

85.7

2450

2500

0.740

0.746

-147.9

-148.4

4.33

4.39

85.4

85.5

0.087

0.089

99.3

99.5

0.867

0.875

-68.0

-69.1

8

_______________________________________________________________________________________

Triple/Dual-Mode

CDMA LNA/Mixers

Table 5. Cellular Mixer S11 in High-Gain

High-Linearity Mode

Table 6. PCS Mixer S11 in High-Gain

High-Linearity Mode

FREQUENCY

(MHz)

S11

(MAG)

S11

(PHASE)

FREQUENCY

(MHz)

S11

(MAG)

S11

(PHASE)

1700

1750

1800

1850

1900

1950

2000

2050

2100

2150

2200

2250

2300

2350

2400

2450

2500

0.764

0.763

0.764

0.763

0.765

0.762

0.751

0.750

-42.6

-44.1

-45.8

-47.3

-48.5

-50.0

-50.1

-50.0

-49.9

-50.0

-49.9

-50.1

-64.4

-64.3

-64.2

700

750

800

850

900

0.803

0.792

0.799

0.769

0.761

-17.5

-18.1

-18.8

-20.2

-21.9

950

0.751

0.738

-23.9

-26.7

1000

_______________________________________________________________________________________

9

Triple/Dual-Mode

CDMA LNA/Mixers

Table 7. Mixer IF Port S22

DIGITAL MIXER

(SINGLE-ENDED)

FM MIXER

FREQUENCY

(MHz)

S22

(MAG)

S22

(PHASE)

S22

(MAG)

S22

(PHASE)

(MHz)

50

0.999

0.997

0.996

0.995

0.994

0.993

0.992

0.986

0.983

0.982

-2.1

50

0.998

0.997

-1.7

-2.5

-2.8

-3.6

-4.0

-5.4

-7.2

-8.9

-10.6

-12.1

100

110

130

150

200

210

250

300

350

-4.1

70

-4.5

85

-5.5

100

110

150

200

250

300

350

-6.2

-8.2

-8.6

-10.0

-12.0

-13.9

400

0.977

-15.8

400

0.997

-13.8

10 ______________________________________________________________________________________

Triple/Dual-Mode

CDMA LNA/Mixers

Typical Application Circuits

CELLULAR

V

CC

PCS

25

28

27

26

22

V

CC

24

23

21

20

19

1

2

3

CDMA

PCS

18

17

16

4

5

6

V

CC

CELLULAR

BAND

SLEEP

G2

MAX2323

FM

G1

15

7

8

9

10

11

12

13

14

MODE

CELLULAR LO

PCS LO

______________________________________________________________________________________ 11

Triple/Dual-Mode

CDMA LNA/Mixers

Typical Application Circuits (continued)

V

CC

28

27

26

25

22

V

CC

24

23

21

20

19

1

2

3

CDMA

18

17

16

4

5

6

V

CC

MAX2325

SLEEP

G2

FM

G1

15

7

8

9

10

11

12

13

14

MODE

VCO

12 ______________________________________________________________________________________

Triple/Dual-Mode

CDMA LNA/Mixers

EV Kit Information

Component List

DESIGNATION QTY

DESCRIPTION

DESIGNATION QTY

DESCRIPTION

0.01μF 10% ceramic caps (0402)

Murata GRM36X7R103K016 or

Taiyo Yuden EMK105B103KW

270nH 2% inductors (0805)

Coilcraft 0805CS-271XGBC

C1, C4, C9,

5

L7, L8

L10

2

1

5

C24, C29

3.9nH 0.3nH inductor (0603)

Murata LQG11A3N9S00

100pF 5% ceramic caps (0402)

Murata GRM36COG101J050 or

Taiyo Yuden UMK105CH101JW

C2, C3,

5

C21, C22, C27

330nH 2% inductor (0805)

Coilcraft 0805CS-331XGBC

L11

2.7pF 0.1pF ceramic cap (0402)

Murata GRM36COG2R7B050 or

Taiyo Yuden EVK105CH2R7JW

C17

C7

1

2.7nH 0.3nH inductor (0603)

Murata LQG11A2N7S00

L12

3.0pF 0.1pF ceramic cap (0402)

Murata GRM36COG3R0B050 or

Taiyo Yuden EVK105CH3R0JW

R1, R4, R5,

R8, R10

1k? 5% resistors (0402)

R2

R3

1

24.3k? 1% resistor (0402)

20.0k? 1% resistor (0402)

2.7k? 5% resistor (0402)

8.2k? 5% resistor (0402)

1.5pF 0.1pF ceramic cap (0402)

Murata GRM36COG1R5B050 or

Taiyo Yuden EVK105CH1R5BW

C8

R7

C12

1

0? resistor (0402)

R11

C6, C10

—

Not installed

Balun transformer (B5F type)

Toko 458DB-1011

C11, C18, C19,

C26, C28,

1000pF 10% ceramic caps (0402)

Murata GRM36X7R102K050 or

Taiyo Yuden UMK105B102KW

T1

1

8

2

7

3

C32, C33

PLNAIN,

CLNAIN,

6800pF 10% capacitors (0402)

Murata GRM36X7R682K025 or

Taiyo Yuden TMK105B682KW

LOLIN, LOHIN,

CLNAOUT,

PLNAOUT,

CDMAOUT,

FMOUT

SMA connectors (PC edge mount)

EFJohnson 142-0701-801 or

Digi-Key J502-ND

C5, C14, C16

1.0pF 0.1pF ceramic cap (0402)

Murata GRM36COG010B050 or

Taiyo Yuden EVK105CH010BW

C15

1

2

PMIXIN,

CMIXIN

SMA connectors (vertical mount)

Digi-Key J500-ND

5.6pF 0.25pF ceramic caps (0402)

Murata GRM36COG5R6C050

C23, C25

4.3pF 0.1pF ceramic cap (0402)

Murata GRM36COG4R3B050 or

Taiyo Yuden EVK105CH4R3JW

Test points

Mouser 151-203

GND, VCC

2

5

4

C31

1

JU1, JU3, JU4,

JU7, JU9

3-pin headers

2-pin headers

8.2nH 5% inductor (0603)

Murata LQG11A8N2J00

L1

1

2

JU2, JU6, JU8,

JU10

1.8nH 10% inductors (0603)

Coilcraft 0603CS-1N8XKBC

L2, L4

None

U1

10

1

Shunts (JU1–JU4, JU6–JU10)

MAX2323EGI (QFN-28)

L3, L6

L5

2

1

0? resistors (0603)

None

1

MAX2323/MAX2325 data sheet

MAX2323 PC board

6.8nH 5% inductor (0603)

Murata LQG11A6N8J00

1

______________________________________________________________________________________ 13

Triple/Dual-Mode

CDMA LNA/Mixers

Figure 1. MAX2323 Evaluation Kit

Package Information

For the latest package outline information, go to

www.maxim-ic.com/packages.

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.

14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

? 2000 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.