2

3

12

IC 15

RF 18

5 5.75MHz Butterworth ITU-601 Rauch 3

BUFFER

U1aU1b

U2aU2b

GAIN = 2

VCC

VCC

VEE

VEE

VCC

VEE

VCC

VEE

5-POLE FILTER

DELAY EQUALIZER

RIN75Ω

Ri270Ω

Rf270Ω

R178.7Ω

R2392Ω

C1270pF

C2120pF

R3196Ω

C343pF

R4470Ω R8

200Ω

C518pF

R6200Ω

R5432Ω

C4680pF

R7100Ω

R11215Ω

C691pF

R10215Ω

R1375Ω

R9215Ω

R12200Ω

U1, U2 = MAX4451

MAXIM 2003$0.04 $0.08

Maxim Integrated Products, Inc. (MXIM) 2003 6 28 295.0

2003 286.2 8.8 81.7 0.24

2003 77.6 0.23 Dallas

Semiconductor 18.6%

2003 Maxim 11.53 10.25 12.5% 2003

309.6 2002 259.2 Dallas Semiconductor

2003 16.8% 2002 0.73 24.7% 2003

0.91

2003 46.7 1.3 28.4

107.3 12 2002

398.5 52.1% 2.9 126.8

2.6 121.2

67.2 22.8% 66.8

23.3%

313 161 (

)

12 227 199 2004

12 219 196

Jack Gifford Maxim 2003 2002

12% 25% Dallas Semiconductor 4%

42% Dallas Semiconductor Maxim

15% 21%

Maxim

Gifford Maxim

23.6% 1959

802.11 LAN

Maxim

Gifford

0.04 0.08 2003 9 5 2003 8 22

News Brief

LC

RC

60

PC

(ADC) Nyquist

ADC

1 ITU-601

ADC

PC

(sinx)/x

(DAC)

DAC

DAC

RGB

RGB PC

( )

NTSC PAL/DVB ITU SMPTE VESA

Rauch

Sallen-Key GBW

• ITU-601

• 20MHz

• HDTV

AC

(Bessel

Butterworth Chebyshev Cauer) 1

1-rad

( )

(GD)

3

1. 1-rad

INSERTION LOSS

BESSELBUTTERWORTHCAUER

AMPL

ITUD

EDE

LAY

TIM

E

GROUP DELAY

ω/ωc

NORMALIZEDFREQUENCY

CHEBYSHEV

ITU-470

ITU-601

MPEG-2

1 (ω /ωc = 1)

3 6MHz

Butterworth

20ns–25ns

2 Bessel Thompson-

Butterworth LeGendre

Butterworth

NTSC/PAL

ITU-470

RGB

RGB

RGB

Pb Pr (Y)

Y 3

Y

Pb Pr

4:2:2 4:4:44

RGB Pb Pr

S-VHS

Y YPbPr (C)

YPbPr

Y C

S-VHS

S-VHS

Y C

Sallen-Key Rauch

- (GBW)

2VP-P

GBW 2VP-P 0.1dB GBW

GBW

Rauch ( )

Arg[K(jω)]inv = -(ωc/GBWrad)(1+Rf/Ri)

Sallen-Key ( )

Arg[K(jω)]noninv = π -(ωc/GBWrad)(1+Rf/Ri)

Rf Ri

GBWrad ωc

/ Rf Ri5

(ωc/GBWrad) Rauch

Rf/Ri = 1 Sallen-Key Rf/Ri = 0

Sallen-Key GBW

Rauch

GBW Sallen-Key

Q

GBWrad/ωc

ωc6

Sallen-Key

Rauch ( 1 2 )

7 SXY

X Y

1 Sallen-Key

4

(1)

(2)

Q C1 C2 (

Rauch ) Sallen-Key

Rauch SXY

ITU-601

2 5.75MHz

±0.1dB 6.75MHz 12dB 8MHz

40dB 0.1dB ±3ns

27MHz

12dB 32MHz 40dB

8 -3dB

8.45MHz 5 Butterworth

0.1dB 2VP-P9 1 2

3a 3b

PC VESA

XGA (1024 x 768

85Hz) 94.5MHz Nyquist

47.25MHz Nyquist >35dB

Rauch 20MHz 4 Butterworth

( 4a 4b) MAX4450/4451

5

Sensitivity Function SXY Gain K = 3 - 1/Q

(R1 = R2 = C1 = C2 = 1)Gain K = 1

(R1 = R2 = 1)Gain K = 2

(R1 = C1 = 1)Sx

ω (x = R1, R2, C1, C2) -1/2 -1/2 -1/2SK

Q 14 50 10SR1

Q 4.5 0 4.5

SR2Q -4.5 0 -4.5

SC1Q 9.5 1/2 5.5

SC2Q -9.5 -1/2 -5.5

SRaK -9/14 N/A -1/2

SRbK 9/14 N/A 1/2

ω (actual) ω (design)[1 - 1/2(3 - 1/Q)2ω / GBW] ω (design)[1 - ω Q / GBW] —

Q (actual) Q (design)[1 + 1/2(3 - 1/Q)2ω / GBW] Q (design)[1 + ω Q / GBW] —

1. BW Q (Sallen-Key ωo = 1rad/ )

Sensitivity Function SXY Gain K = 1

(R1 = R2 = R3 = 1)

Gain K = 2(R1 = 1, R3 = H ,

R2 = (H / 1 + H ))

Gain K = 2(C1 = 1,

C2 = C1 / 100)Sx

ω (x = R2, R3, C1, C2,SR1

ω = 0)-1/2 -1/2 -1/2

SR1Q 1/3 1/3 1/3

SR2Q -1/6 0 0

SC1Q 1/2 1/2 1/2

SC2Q -1/2 -1/2 -1/2

SR3K 1 1 1

SR1K -1 -1 -1

SR3Q 1/6 0 0

ω (actual) ω (design)[1 - 3ω Q / 2GBW] — —

Q (actual) Q (design)[1 + 3ω Q / 2GBW] — —

2. BW Q (Rauch ωo = 1rad/ )

6

3. (a) (b) ITU-601 5 5.75MHz Butterworth Rauch

BUFFER

U1aU1b

U2aU2b

GAIN = 2

VCC

VCC

VEE

VEE

VCC

VEE

VCC

VEE

5-POLE FILTER

DELAY EQUALIZER

RIN75Ω

Ri270Ω

Rf270Ω

R178.7Ω

R2392Ω

C1270pF

C2120pF

R3196Ω

C343pF

R4470Ω R8

200Ω

C518pF

R6200Ω

R5432Ω

C4680pF

R7100Ω

R11215Ω

C691pF

R10215Ω

R1375Ω

R9215Ω

R12200Ω

U1, U2 = MAX4451

2. ITU-R BT.601-5

0dB

-40dB

FREQUENCY5.75MHz

6.75MHz

+0.1dB

-0.1dB

-3.0dB

INSERTIONLOSS

-12dB

8.0MHz

FREQUENCY

GROUP DELAY

TO

5.75MHz

6ns

(a)

(b)

(2VP-P 175MHz)

DAC

DAC 5 A

DAC

10

Butterworth Bessel ( 6 )

4dB

7a

Bessel

7

4. (a) (b) XGA 4 20MHz Butterworth Rauch

R4301Ω

C3115pF

R1332Ω

C133pF

R2130Ω

C45.6pF

C222pF

R6221Ω

R3332Ω

R698Ω

R5221Ω

R7221Ω

EIN

EOUT

U1

U2

VCC

VEE

VCC

VEE

(a)

(b)

8

DAC (FS) 7b

DAC

NTSC/PAL 13.5MHz

>20dB 27MHz >40dB ωc

Sallen-Key 3 Butterworth

(+2)

( 8a–8d NTSC PAL

) DAC

XGA Sallen-Key

20MHz 3 Butterworth

8 ( 9a 9b)

4 +2

75Ω

HDTV

SMPTE 274 296M

ωc = 0.4 x FS = 29.7MHz DAC

30MHz 5 Sallen-Key ( 10) 74.25MHz

>40dB +2

75Ω

5. DAC (FS) Nyquist (FN)

FS = SAMPLE FREQUENCY

FREQUENCY

AMPL

ITUD

E

FN = NYQUIST FREQUENCY

FSFS

FN

A

NX0

0

7. DAC (b) (sinx)/x (

(a) )

The component's values are a function of the sampling frequency of the DAC.

1. R1 x C1 = 1/4 x Fsample2. R2 = R1/10

3. R3 = R1/504. C2 = 12 x C1

EIN

VEE

VCC

EOUT

R1

R1

R2R1

R3

C2

C1

6. DAC (sinx)/x

ZERO ORDER HOLD

00

1.0

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

0.5

NORMALIZED FREQUENCY

AMPL

ITUD

E |H

(F) |

-2.5

-2.0

-1.5

-1.0

-0.5

0

0.5

0.071

-2.42

0 0.100.05 0.15 0.20 0.25 0.30 0.35 0.40

DAC CORRECTION

NORMALIZED FREQUENCY

INSE

RTIO

N LO

SS (I

L)

IL WITH COMPENSATION

IL WITHOUT COMPENSATION

(a)

(b)

9

8. PAL (a) (c) NTSC (b) (d)

R178.7Ω

R2178Ω

R3332Ω

R7SEE NOTE 1

R4604Ω

R675Ω

R5604Ω

R8SEE NOTE 2

C1150pF

C347pF

C247pF

ZT OFDAC

U1MAX4450

PAL VERSION

VCC

VEE

U1

NOTE 1: 75Ω LOADNOTE 2: ADJUSTS GROUP DELAY

R175Ω

R2221Ω

R3365Ω

R7SEE NOTE 1

R4604Ω

R675Ω

R5604Ω

R8SEE NOTE 2

C1330pF

C382pF

C2100pF

ZT OFDAC

U1MAX4450

NTSC VERSION

VCC

VEE

U1

(a) (b)

(c)

(d)

10

10. HDTV 5 30MHz DAC

VCC

VEE

VCC

VEE

VCC

VEE

VCC

VEEC533pF

C327pF

C2150pF

C669pF

C17.5pF

C48.2pF

R1575Ω

R11210Ω

R7210Ω

R2210Ω

R12210Ω

R13210Ω

R1475Ω

R1210Ω

R3100Ω R5

210Ω

R4210Ω

R1675Ω

R6120Ω

R8210Ω

R9210Ω

R10210Ω

XU1d

XU1c

XU1bXU1a

++

++

-

-

--

9. XGA (sinx)/x 3 20MHz Butterworth (a) (b)

R1205Ω

R2205Ω

R3205Ω

Rf604Ω

ROUT75Ω

Ri604Ω

R90Ω

R7178Ω

R8178Ω

R420.5Ω R6

47Ω

R54.12Ω

C127pF

C2 C5330pF

C3220pF

C410pF

VCC

VEE

VCC

VEE

10pF

U2U1EIN

EOUT

(a)

(b)

(5% )

1% 2%

5%

1% 1%

ESR

1 -3dB

2 Taylor Williams, Electronic Filter Design Handbook,

McGraw Hill, ISBN 0-07-070441-4.

3

4 4:2:2

ITU-601 3.375MHz 4:2:2

13.5MHz 6.75MHz

5 Rf/Ri = 0 Rf/Ri = 1

6 E.J. Kennedy, Operational Amplifier Circuits:

Theory and Applications.

7 H.W. Bode Network Analysis and Feedback

Amplifier Design (D. Van Nostrand, Princeton NJ,

1945)

8 Taylor Williams, op. cit.

9 MAX4450/51 www.maxim-ic.com

10 Sinc (sinx)/x

2003 6 EDN

11

( CPU FPGA GPU)

(

)

+90°C +130°C

+120°C

( )

( 30°C )

CPU FPGA IC

IC

40%

PWM 30Hz

12

PWM

(

)

( )

PWM RPM

( 1%

)

( 40%)

100%

5

RPM

IC /

IC

PWM 1 2 1 IC

2

IC

PWM

13

14

1. ( )

2. PWM

CRIT0 CRIT1

HIGH-SPEED CHIP

TO CLOCKTHROTTLE

+3.3V

5kΩ

+3.3V

+3.3V

+3.3V

2200pF

FAN FAILDXP

DXN

THERM

ALERTSMBDATASMBCLK

TO SYSTEM SHUTDOWN

MAX6653

1µF

VFAN

SDR

CRIT1 CRITO

SDL PWMOUT

TACHIN

TOSMBus

MASTER

HIGH-SPEED CHIP

ON-CHIPPN JUNCTION

5kΩ

+12V

+3.3V

TACH IN

FANDXP

DXN OVERTALERT

SMBDATASMBCLK

ADD1ADD0

10kΩ 10kΩ 10kΩ

TO SYSTEM SHUTDOWN

SMBus™ SERIALINTERFACE(TO SMBus MASTER)

MAX6660

GND

VCC

1µF

2200pF

SMBus Intel Corporation

IC

PDA /

(FM) MP3

IC

IC

IC (PMIC) PMIC

PMIC

/

5V BiCMOS

PMIC

1

1)

2)

3)

4)

/ 5)

( )

PMIC

5 12

(LDO) LDO

LDO (PSRR) on/off

LDO PMIC

LDO

PCB / (

)

SOT23

150mA LDO

IC

SOT23

300mA LDO SOT23 150mA LDO

SC70 120mA LDO

(10µVRMS 85dB PSRR)

(UCSPTM)

QFN 3mm x 3mm

15

1. MAX1502

IC CDMA

AC ADAPTER

CONTROLAND STATUS

CLKDATA

RESET

CORE1.80V

150mA

I/O2.85V

250mA

ANALOG2.60V80mA

BATT

GND

Li+BATTERY

AUXADJ150mA

TXADJ150mA

SYNTHADJ80mA

RXADJ80mA

TCXOADJ

80mA

SERIALINTERFACE

ON/OFFLOGIC

LDO1

LDO2

LDO3

LDO4

LDO8

LDO7

LDO6

LDO5

MAX1502

TCXOBUFFER

BATTERYCHARGER

UCSP Maxim Integrated Products, Inc.

QFN

LDO LDO

LDO

PMIC

(buck)

LDO

PDA

1.8V 0.9V

( )

SOT23 1MHz

RF

(buck)

buck

CDMA (PA)

VCC

buck

40mA 65mA

PA

WCDMA

buck

SOT23

RDS(ON) P MOSFET

PA

( MAX8500

) FET

LED

LED

LED

LED (

) LED

LED / MPEG

16 LED

1.5 (

buck

PA 40mA )

1 /1.5

LED

LED

IC

( )

PMIC

LED

IC PMIC

( MAX1582 2 )

3 NiMH

1

PMIC

16

1) C/4

2)

3)

4)

5)

PMIC

IC

PMIC

2003 5 Connecting Industry

(UK)

17

2. LED MAX1582

MAX1582

7.5ΩTYP

SUBD

ISPL

AY

KEYB

OARD

680Ω

680Ω

22µH

GND

2.2µF

V+

CTRL PGND

OUT1

LX

OUT2

CS

EN1

EN2

COMP

0.1µ

F

MAI

N DI

SPLA

Y

ANALOG ORPWM DIMMING

INPUT2.6V TO 5.5V

OFF, MAIN,SUB, OR BOTH

NO R-C NEEDED200Hz TO 200kHz

RF

RF

RF

IC

DMOS (LDMOS)

MOSFET

GaN FET HFET SiC

RF

RF LDMOS

RF RF

(Iout) LDMOS

( 1 ) LDMOS

RF

( ) ( )

360°C

MOSFET

( A )

A

DC

RF 28V

DC

RF AB

A AB

360°

AB RF A

A

AB

RF

LDMOS

LDMOS

RF

LDMOS Iout = K (Vgs - Vth)2

K Vth

FET K Vth 2

LDMOS AB

A

18

1. DC LDMOS

AMPLIFIERINPUT

28V

RLOAD

IOUT

VRFVBIAS

+

2. LDMOS

0

1.5

1.0

0.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

3.0 4.03.5 4.5 5.0

LDMOS I vs. Vgs ACROSS TEMPERATURE

Vgs (V)

Id (A

)

Id (A) @ +25°C

Id (A) @ +125°C

Id (A) @ -40°C

DS1847 A AB

3 DS1847

LDMOS DS1847

IC 256

LDMOS

LDMOS 2 (

)

2003 11 Wireless Design &

Development

19

3. DS1847 LDMOS

DATA

CLOCKTEMP

H1

H0

L1

L0

LOOK-UP

TABLE

VRF

28V

REF02

RLOAD

IOUT

DS1847

www.maxim-ic.com

010-62010298www.maxim-ic.com.cn

www.maxim-ic.com.cn/sample.htmwww.maxim-ic.com.cn/technical.htm8008100310 010-62010598

8328 100083

24

Maxim/Dallas

Maxim/Dallas

Maxim/Dallas CD-ROM

( )

____________________________________ / ____________________________

____________________________________ __________________________________

____________________________________________________________________________

____________________________________ __________________________________

____________________________________

____________________________________

________________________________________________________________________

/ ____________________________ ____________ /

( 3 )

EJ49 1/04

MAXIM 800 810 0310

010-6201 0598010-6201 0298

SOLOMON QCE INGRAM MICRO ( ) AVNET010-68408123 ( ) 68408125 ( ) 010-82644888 ( ) 82644333( ) 010-64413113 ( ) 64438260 ( )021-68867026 ( ) 68867217 ( ) 021-64435555 ( ) 64433355( ) 021-52062288 ( ) 52062299 ( )0755-83782626 ( ) 83781753 ( ) 0755-83663721 ( ) 83663027( ) 0755-83781886 ( ) 83780079 ( )028-85535552 ( ) 85593712 ( ) 028-85218282 ( ) 85218383( ) 852-21765388 ( ) 27902182 ( )025-6899420 ( ) 6899419 ( ) 027-87272022 ( ) 87275076( )852-24934202 ( ) 24136307 ( ) 852-27411212 ( ) 27418552( )