MAXIM MAX9718, MAX9719 User Manual

19-3050; Rev 7; 4/10

భᄋ৙ຶৰۇ

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

________________________________

MAX9718/MAX9719

ก՘ܖพ൩ᄞ౷ޢଔ܅ؙಹLjคᅋ

概述

ᅢ௠ብႻ෕ಹوӯဝ෷ᄞ౷හӄă՘ܖพ൩޵ݢජષ
ᇑ෕ᄀቨ௢઒LjԌ໗ޥޮனᄀቨă೥ݘᆾ

(BTL)

޵ᇀ
໗ޥݽ౹ቬᄞ౷ޢଔ܅ؙوༀ෫Ljؙؙඵષ༶ԩᆐ
ืă

MAX9718

෕࿅༇وใ໼ل܅ؙಹăԳᅋ
ಹو୧ޔ໼لڞ௢ჾဏᅢ1%و

وઘၦ౿োޢଔăሦဗಹࣞ৹ჾ໗ޥᇜᄐ৹ٻو

1.4W

܅ؙಹLjნ৹ჾ໗ޥ

กة໼ل܅ؙಹLjۚ

+5V

0dBĂ3dBࠧ6dB

MAX9719

กᅋᅢ઎໛

ة٫ᆚޥ٫෫Ljሦ઩

THD+Nဂ4Ω

ݘᆾพ־

و௠ԩ߈ڊᇜᄐLj

ჾඵᆐื௅ă

ߔڱพ൩৹ჾᅋ౭ብ٫ႅۢූಹࠧ܅ؙಹLjෳ঄ຢ٫
ૣຈࠞّف
ڊཛྷݽ٫౿ᅘပࢪّ٫౿ᅘပăሦဗಹ঱ᅘ

100nA

ჾ௠ă

MAX9718

وߔڱพ൩৹ჾහ

༾

Maxim

ӄوᆹᄞᄀቨ٫ଁLj৹ჾّಶڑࠧߔڱ߹֔وᖷᗸ/ᘶ
ᘩ෕ă

MAX9718ᅳLM4895



TDFNࠧ10

TQFNĂ16

ޠዷᇀ

ᄧ

-40°Cባ+85°C

ᄧࣼ൛Lj໗ޥ9ࠒഒ

μMAX

®

ܢኰă

ᄧ

TSSOPࠧ16ࠒഒUCSP

ᇽུڪ۶ཙă

MAX9719

ܢኰăሦဗಹڞ

________________________________

TM

UCSP

Lj10ᄧ

໗ޥ16ᄧ

应用

ჰڑ٫ࡨ

2/5X

________________________________

♦ 2.7V至5.5V

ތፒຫ৖ൈࡍ໭

特性

单电源供电

♦高PSRR，217Hz时为-93dB
♦以1%的THD+N为4Ω

差分输入

♦

内部固定增益，可以减少元件数目

♦

可调增益选择

♦
♦ 100nA

上电/断电时无咔嗒/噼噗声

♦
♦与LM4895

兼容于1.8V逻辑电平

♦

(MAX9718A/H/MAX9719A)

低功耗关断模式

引脚兼容的升级产品

负载提供

1.4W功率(

(MAX9718D/G)

_____________________________

PART TEMP RANGE

M A X9 7 1 8 AE BL+ TG 45 -40°C to +85°C 3 x 3 UCSP +ADX

MAX9718AETB+T -40°C to +85°C 10 TDFN-EP* +AAV

+

ӹ෸ྐೆ

*EP =
G45

(Pb)/ܻࠩRoHS

ଭࠒరă

ӹ෸ߘာ؞ᅘү࡜Սă

Ӷኼوܢኰă

PIN­PACKAGE

每通道

)

定购信息

T O P

M A R K

NBY:8290NBY:82:

PDA

ӯဝ෷ኰብ

_________________________________________________________________________

SINGLE SUPPLY

2.7V TO 5.5V

IN+

IN-

SHDN

SHDM

________________________________________________________________ Maxim Integrated Products 1

۾ᆪဵ፞ᆪၫ௣ᓾ೯ࡼፉᆪLjᆪᒦభถࡀᏴፉ࿟ࡼݙᓰཀྵ૞ࡇᇙăྙኊ஠ጙݛཀྵཱྀLj༿Ᏼิࡼ࿸ଐᒦݬఠ፞ᆪᓾ೯ă

MAX9718

OUT+

OUT-

定购信息(续)在数据资料的最后给出。

引脚配置在数据资料的最后给出。

UCSPกMaxim Integrated Products, Inc.
μMAXกMaxim Integrated Products, Inc.

SINGLE SUPPLY

2.7V TO 5.5V

INL+

INL-

INR+

INR-

SHDN

MAX9719

OUTL+

OUTL-

OUTR+

OUTR-

وඨӶă
وኢՋඨӶă

简化框图

ᎌଥৃĂ৙ૡૺࢿ৪ቧᇦLj༿ೊ൥Nbyjn዇ᒴሾ၉ᒦቦǖ21911!963!235:!)۱ᒦཌ*Lj21911!263!235:!)ฉᒦཌ*Lj
૞ᆰNbyjnࡼᒦᆪᆀᐶǖdijob/nbyjn.jd/dpnă

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCCto GND) ..................................-0.3V to +6V

Any Other Pin to GND ...............................-0.3V to (V

CC

+ 0.3V)

IN_, BIAS, SHDM, SHDN, SHDN Continuous Current ........20mA

OUT_ Short-Circuit Duration to GND or V
Continuous Power Dissipation (T

= +70°C)

A

.............Continuous

CC

9-Bump UCSP (derate 5.2mW/°C above +70°C) .......1067mW

10-Pin TDFN (derate 24.4mW/°C above +70°C) ........1951mW

10-Pin μMAX (derate 10.3mW/°C above +70°C) ..........825mW

16-Bump UCSP (derate 8.2mW/°C above +70°C) .....1633mW

16-Pin TQFN (derate 16.9mW/°C above +70°C) ........1349mW

16-Pin TSSOP (derate 21.3mW/°C above +70°C) ......1702mW

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.

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

Soldering Temperature (reflow) .......................................+260°C

NBY:8290NBY:82:

ELECTRICAL CHARACTERISTICS—5V Supply

(VCC= 5V, GND = 0, SHDN/SHDN = VCC(MAX9718/MAX9719), SHDM = GND (MAX9718), RIN= RF= 10kΩ (MAX971_A/H),

= +25°C. C

T

A

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

Supply Current I

Shutdown Supply Current I
SHDN, SHDN, SHDM

Threshold

SHDN, SHDN, SHDM
Threshold

Output Offset Voltage V

Common-Mode Input Voltage V

Input Impedance R

Common-Mode Rejection Ratio CMRR

Power-Supply Rejection Ratio PSRR

Output Power P

Total Harmonic Distortion Plus
Noise

= 0.1μF, no load. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

BIAS

CC

V

= V

CC

SHDN

V

IH

V

IL

V

IH

V

IL

OS

IC

IN

OUT

THD+N

IN-

per amplifier (Note 2)
SHDN = SHDM = SHDN = GND, per amplifier 0.1 1 μA

MAX9718A/B/C/D

MAX9718E/F/G/H

V

IN-

Inferred from
CMRR test

External gain, MAX971_A/H 0.5 VCC - 1.2
MAX971_B/E, MAX971_C/F, MAX971_D/G 10 15 20 kΩ

f

= 1kHz -60

N

V

IN-

V

RIPPLE

R

= 8Ω , C

L

THD+N = 1%,

= 1kHz (Note 4)

f

IN

= 8Ω, f

R

L

V

CC

= V

IN+

= V

IN+

= V

= V

IN+

= 200m V

BIAS

IN

= 5V, AV = 6dB (Note 5)

, TA = -40°C to +85°C,

BIAS

AV = 0dB, MAX971_A/H,

= V

= 1kHz, P

MAX971_B/E

BIAS

AV = 3dB, MAX971_C/F ±1 ±15

AV = 6dB, MAX971_D/G ±1 ±20

AV = 0dB, MAX971_B/E 0.5 V CC - 0.5

AV = 3dB, MAX971_C/F 0.5 V CC - 0.6

A

V

,

BIAS

,

P-P

= 1μF

OUT

= 6dB, MAX971_D/G 0.5 V CC - 0.8

f = 217Hz -93

f = 1kHz -90

R

= 8Ω 0.8 1.1

L

= 4Ω 1.4

R

L

= 0.75W,

2.7 5.5 V

5.0 7.5 mA

0.7 x V

CC

0.3 x V

CC

1.4

0.4

±1 ±10

-50 -60

0.002 %

V

V

mV

V

dB

dB

W

2 _______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

ތፒຫ৖ൈࡍ໭

ELECTRICAL CHARACTERISTICS—5V Supply (continued)

(VCC= 5V, GND = 0, SHDN/SHDN = VCC(MAX9718/MAX9719), SHDM = GND (MAX9718), RIN= RF= 10kΩ (MAX971_A/H),

= +25°C. C

T

A

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Gain Accuracy MAX971_B/E, MAX971_C/F, MAX971_D/G ±1 %

Channel-to-Channel Gain
Matching

Signal-to-Noise Ratio SNR P

Thermal-Shutdown Threshold +160 °C

Thermal-Shutdown Hysteresis 15 °C

Maximum Capacitive Drive C

Power-Up/Enable from
Shutdown Time

Shutdown Time t

Turn-Off Transient V

Crosstalk MAX9719, fIN = 1kHz -85 dB

= 0.1μF, no load. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

BIAS

MAX9719B/E, MAX9719C/F, MAX9719D/G ±1 %

= 1W, RL = 8Ω -104 dB

OUT

LOAD

t

SHDN

POP

Bridge-tied capacitance 500 pF

PU

(Note 6) 50 mV

10 ms

3.5 μs

ELECTRICAL CHARACTERISTICS—3V Supply

(VCC= 3V, GND = 0, SHDN/SHDN = VCC(MAX9718/MAX9719), SHDM = GND (MAX9718), RIN= RF= 10kΩ (MAX971_A/H),

= +25°C. C

T

A

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Current I

Shutdown Supply Current I

SHDN, SHDN, SHDM
Threshold

Common-Mode Bias Voltage V

Output Offset Voltage V

Common-Mode Input Voltage V

Input Impedance R

Common-Mode Rejection Ratio CMRR

Power-Supply Rejection Ratio PSRR

= 0.1μF, no load. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

BIAS

V

= V

CC

SHDN

V

IH

V

IL

BIAS

OS

IC

IN

IN+

= V

IN+

= V

IN+

= 200m V

= 1μF

= V

= V

= V

IN-

per amplifier (Note 2)
SHDN = SHDM = SHDN = GND, per amplifier 0.1 1 μA

(Note 3)

V

IN-

Inferred from
CMRR test

External gain, MAX971_A/H 0.5 V CC - 1.2

MAX971_B/E, MAX971_C/F, MAX971_D/G 10 15 20 kΩ

f

= 1kHz -70

N

V

IN-

V

RIPPLE

R

= 8Ω ,

L

C

BIAS

, TA = -40°C to +85°C,

BIAS

AV = 0dB, MAX971_A/H
MAX971_B/E

BIAS

AV = 3dB, MAX971_C/F ±1 ±15

AV = 6dB, MAX971_D/G ±1 ±20

AV = 0dB, MAX971_B/E 0.5 V CC - 0.7

AV = 3dB, MAX971_C/F 0.5 V CC - 0.8

= 6dB, MAX971_D/G 0.5 V CC - 1.0

A

V

,

BIAS

f = 217Hz -93

,

P-P

f = 1kHz -90

0.7 x V

CC

V

/2

CC

- 5%

-50 -60

3.8 6.0 mA

0.3 x V

CC

V

/2

CC

/2

V

CC

±1 ±10

+ 5%

V

V

mV

V

dB

dB

NBY:8290NBY:82:

_______________________________________________________________________________________ 3

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

ELECTRICAL CHARACTERISTICS—3V Supply (continued)

(VCC= 3V, GND = 0, SHDN/SHDN = VCC(MAX9718/MAX9719), SHDM = GND (MAX9718), RIN= RF= 10kΩ (MAX971_A/H),

= +25°C. C

T

A

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Output Power P

Total Harmonic Distortion Plus
Noise

Thermal-Shutdown Threshold +160 °C

Thermal-Shutdown Hysteresis 15 °C

Maximum Capacitive Drive C

Power-Up/Enable from
Shutdown Time

Shutdown Time t

NBY:8290NBY:82:

Turn-Off Transient V

Crosstalk MAX9719, fIN = 1kHz -85 dB

Note 1: All specifications are 100% tested at TA= +25°C. Specifications over temperature (TA= T

design, not production tested.

Note 2: Quiescent power-supply current is specified and tested with no load. Quiescent power-supply current depends on the offset

voltage when a practical load is connected to the amplifier. Guaranteed by design.

Note 3: Common-mode bias voltage is the voltage on BIAS and is nominally V
Note 4: Output power is specified by a combination of a functional output current test and characterization analysis.
Note 5: Measurement bandwidth for THD+N is 22Hz to 22kHz.
Note 6: Peak voltage measured at power-on, power-off, into or out of SHDN. Bandwidth defined by A-weighted filters, inputs at AC

GND. V

= 0.1μF, no load. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

BIAS

= 8Ω, THD+N = 1%, f

OUT

THD+N

LOAD

t

SHDN

POP

rise and fall times greater than or equal to 1ms.

CC

R

L

= 8Ω, f

R

L

A

V

= 6dB

IN

Bridge-tied capacitance 500 pF

PU

(Note 6) 40 mV

= 1kHz, P

= 1kHz (Note 4) 475 mW

IN

= 0.25W,

OUT

/2.

CC

0.003 %

10 ms

3μs

to T

MIN

) are guaranteed by

MAX

__________________________________________________________________

(VCC= 5V, C

TOTAL HARMONIC DISTORTION PLUS NOISE

10

VCC = 5V
R
A

1

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

4 _______________________________________________________________________________________

= 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz, TA= +25°C, unless otherwise noted.)

BIAS

vs. FREQUENCY

= 4Ω

L

= 2

V

OUTPUT POWER = 1W

OUTPUT POWER = 50mW

100 1k 10k

FREQUENCY (Hz)

MAX9718 toc01

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. FREQUENCY

10

VCC = 5V

= 4Ω

R

L

= 4

A

V

1

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

OUTPUT POWER = 1W

OUTPUT POWER = 200mW

100 1k 10k

FREQUENCY (Hz)

MAX9718 toc02

TOTAL HARMONIC DISTORTION PLUS NOISE

10

1

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

vs. FREQUENCY

VCC = 5V

= 8Ω

R

L

= 2

A

V

OUTPUT POWER = 750mW

OUTPUT POWER = 250mW

100 1k 10k

FREQUENCY (Hz)

典型工作特性

MAX9718 toc03

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

ތፒຫ৖ൈࡍ໭

________________________________________________________________

(VCC= 5V, C

TOTAL HARMONIC DISTORTION PLUS NOISE

10

VCC = 5V
R
A

1

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

TOTAL HARMONIC DISTORTION PLUS NOISE

10

VCC = 3V
R
A

1

= 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz, TA= +25°C, unless otherwise noted.)

BIAS

TOTAL HARMONIC DISTORTION PLUS NOISE

10

1

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

TOTAL HARMONIC DISTORTION PLUS NOISE

100

MAX9718 toc08

10

vs. FREQUENCY

= 8Ω

L

= 4

V

OUTPUT POWER = 800mW

OUTPUT POWER = 200mW

100 1k 10k

FREQUENCY (Hz)

vs. FREQUENCY

= 8Ω

L

= 2

V

MAX9718 toc04

MAX9718 toc07

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. FREQUENCY

10

VCC = 3V

= 4Ω

R

L

= 2

A

V

1

0.1

THD+N (%)

0.01

0.001

0.0001

OUTPUT POWER = 50mW

OUTPUT POWER = 250mW

100 1k 10k

10 100k

FREQUENCY (Hz)

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. FREQUENCY

10

VCC = 3V

= 8Ω

R

L

= 4

A

V

1

MAX9718 toc05

VCC = 3V

= 4Ω

R

L

= 4

A

V

100 1k 10k

VCC = 5V

= 4Ω

R

L

= 2

A

V

典型工作特性(续

vs. FREQUENCY

OUTPUT POWER = 175mW

OUTPUT POWER = 70mW

FREQUENCY (Hz)

vs. OUTPUT POWER

NBY:8290NBY:82:

)

MAX9718 toc06

MAX9718 toc09

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

OUTPUT POWER = 100mW

OUTPUT POWER = 250mW

100 1k 10k

FREQUENCY (Hz)

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. OUTPUT POWER

100

VCC = 5V

= 4Ω

R

L

= 4

A

V

10

1

THD+N (%)

0.1

0.01

0.001
0 2.0

fIN = 100Hz

fIN = 1kHz

0.5 1.51.0
OUTPUT POWER (W)

fIN = 10kHz

MAX9718 toc10

0.1

THD+N (%)

0.01

0.001

0.0001
10 100k

OUTPUT POWER = 50mW

OUTPUT POWER = 200mW

100 1k 10k

FREQUENCY (Hz)

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. OUTPUT POWER

100

VCC = 5V

= 8Ω

R

L

= 2

A

V

10

1

THD+N (%)

0.1

0.01

0.001

0.2 0.6 0.8 1.0 1.20.4

0 1.4

fIN = 1kHz

fIN = 100Hz

OUTPUT POWER (W)

fIN = 10kHz

1

THD+N (%)

0.01

0.001

fIN = 100Hz

0.1

0.2 0.4 0.6 0.8 1.2 1.41.0 1.8

0 2.0

OUTPUT POWER (W)

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. OUTPUT POWER

100

VCC = 5V

= 8Ω

R

L

= 4

MAX9718 toc11

A

V

10

1

THD+N (%)

0.1

0.01

0.001

0.2 0.6 0.8 1.0 1.20.4

0 1.4

fIN = 100Hz

fIN = 1kHz

OUTPUT POWER (W)

fIN = 10kHz

fIN = 1kHz

1.6

MAX9718 toc12

fIN = 10kHz

_______________________________________________________________________________________ 5

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

___________________________________________________________________

(VCC= 5V, C

TOTAL HARMONIC DISTORTION PLUS NOISE

100

VCC = 3V
R
A

10

1

THD+N (%)

0.1

0.01

NBY:8290NBY:82:

0.001
0 600

TOTAL HARMONIC DISTORTION PLUS NOISE

100

VCC = 3V
R
A

10

= 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz, TA= +25°C, unless otherwise noted.)

BIAS

vs. OUTPUT POWER

= 4Ω

L

= 2

V

fIN = 1kHz

100 300 400 500200

OUTPUT POWER (mW)

vs. OUTPUT POWER

= 8Ω

L

= 4

V

fIN = 10kHz

fIN = 100Hz

MAX9718 toc13

MAX9718 toc16

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. OUTPUT POWER

100

VCC = 3V

= 4Ω

R

L

= 4

A

V

10

1

THD+N (%)

0.1
fIN = 1kHz

0.01

0.001
100 300 400 500200

0 600

OUTPUT POWER (mW)

fIN = 10kHz

fIN = 100Hz

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. COMMON-MODE VOLTAGE

0.01
VCC = 5V

= 200mW

P

O

= 2

A

V

MAX9718 toc14

MAX9718 toc17

TOTAL HARMONIC DISTORTION PLUS NOISE

100

10

1

THD+N (%)

0.1

0.01

0.001
0 600

TOTAL HARMONIC DISTORTION PLUS NOISE

0.01

典型工作特性(续

vs. OUTPUT POWER

VCC = 3V

= 8Ω

R

L

= 2

A

V

fIN = 1kHz

fIN = 100Hz

100 300 400 500200

OUTPUT POWER (mW)

vs. COMMON-MODE VOLTAGE

VCC = 3V

= 200mW

P

O

= 2

A

V

)

MAX9718 toc15

fIN = 10kHz

MAX9718 toc18

1

THD+N (%)

0.1

0.01

0.001
0

fIN = 1kHz

100 300 400 500200

OUTPUT POWER (mW)

OUTPUT POWER

vs. SUPPLY VOLTAGE

2.5
RL = 4Ω

f = 1kHz

= 2

A

V

2.0

1.5

1.0

OUTPUT POWER

0.5

0

2.5 5.5

THD+N = 10%

THD+N = 1%

SUPPLY VOLTAGE (V)

fIN = 10kHz

fIN = 100Hz

5.04.54.03.53.0

0.001

THD+N (%)

0.0001

1.8

1.6

MAX9718 toc19

1.4

1.2

1.0

0.8

0.6

OUTPUT POWER (W)

0.4

0.2

13452

0

COMMON-MODE VOLTAGE (V)

OUTPUT POWER

vs. SUPPLY VOLTAGE

RL = 8Ω
f = 1kHz

= 2

A

V

THD+N = 10%

THD+N = 1%

0

2.5 5.5
SUPPLY VOLTAGE (V)

5.04.54.03.53.0

0.001

THD+N (%)

0.0001

MAX9718 toc20

OUTPUT POWER (W)

0.5 1.5 2.0 2.5 3.01.0

0

COMMON-MODE VOLTAGE (V)

OUTPUT POWER

vs. LOAD RESISTANCE

2.0
VCC = 5V

1.8
f = 1kHz

= 2

A

V

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

1

LOAD RESISTANCE (Ω)

THD+N = 10%

THD+N = 1%

MAX9718 toc21

10010

6 _______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

ތፒຫ৖ൈࡍ໭

___________________________________________________________________

(VCC= 5V, C

600

VCC = 3V
f = 1kHz

500

A

V

400

300

200

OUTPUT POWER (mW)

100

0

1

700

VCC = 3V
R

L

600

f = 1kHz
A

V

500

400

300

200

POWER DISSIPATION (mW)

100

0

0 700

= 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz, TA= +25°C, unless otherwise noted.)

BIAS

OUTPUT POWER

vs. LOAD RESISTANCE

= 2

THD+N = 1%

LOAD RESISTANCE (Ω)

POWER DISSIPATION

vs. OUTPUT POWER

= 4Ω

= 2

OUTPUT POWER (mW)

THD+N = 10%

1.8

1.6

MAX9718 toc22

1.4

1.2

1.0

0.8

0.6

POWER DISSIPATION (W)

0.4

0.2

10010

MAX9718 toc25

600500400300200100

0

350

300

250

200

150

100

POWER DISSIPATION (mW)

50

0

POWER DISSIPATION

vs. OUTPUT POWER

VCC = 5V

= 4Ω

R

L

f = 1kHz

= 2

A

V

0 1.8

OUTPUT POWER (W)

1.51.20.90.60.3

POWER DISSIPATION

vs. OUTPUT POWER

VCC = 3V

= 8Ω

R

L

f = 1kHz

= 2

A

V

0 500

OUTPUT POWER (mW)

400300200100

1.0

MAX9718 toc23

0.8

0.6

0.4

POWER DISSIPATION (W)

0.2

0

150

120

MAX9718 toc26

90

60

30

0

-30

GAIN/PHASE (°/dB)

-60

-90

-120

-150
10 100k

0 1.4

VCC = 5V

= 8Ω

R

L

f = 1kHz

= 2

A

V

AV = 60dB

典型工作特性(续

POWER DISSIPATION

vs. OUTPUT POWER

OUTPUT POWER (W)

GAIN AND PHASE

vs. FREQUENCY

10k1k100

FREQUENCY (Hz)

NBY:8290NBY:82:

)

MAX9718 toc24

1.21.00.80.60.40.2

MAX9718 toc27

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

0

V

= 200mV

RIPPLE

-10

RL = 8Ω
C

BIAS

-20

-30

-40

-50

PSRR (dB)

-60

-70

-80

-90

-100
10 100k

P-P

= 1μF

VCC = 5V

VCC = 3V

FREQUENCY (Hz)

MAX9718 toc28

10k1k100

COMMON-MODE REJECTION RATIO

vs. FREQUENCY

0

V

= 200mV

RIPPLE

-10

RL = 8Ω
C

BIAS

-20

-30

-40

-50

CMRR (dB)

-60

-70

-80

-90

-100
10 100k

P-P

= 1μF

VCC = 5V

VCC = 3V

FREQUENCY (Hz)

MAX9718 toc29

10k1k100

_______________________________________________________________________________________ 7

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

_____________________________________________________________________

(VCC= 5V, C

NBY:8290NBY:82:

= 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz, TA= +25°C, unless otherwise noted.)

BIAS

CROSSTALK

vs. FREQUENCY

0

VCC = 5V

-10

-20

-30

-40

-50

-60

-70

CROSSTALK (dB)

-80

-90

-100

-110

-120

= 200mV

V

RIPPLE

RL = 8Ω
C

BIAS

10 100k

P-P

= 1μF

CHANNEL 2

CHANNEL 1

FREQUENCY (Hz)

ENTERING SHUTDOWN

C
V
R

10k1k100

BIAS
CC
L

= 8Ω

MAX9718 toc32

= 0.1μF

= 3V

MAX9718 toc30

SHDN
2V/div

OUT+
1V/div

OUT­1V/div

0

VCC = 3V

-10
V

RIPPLE

-20

RL = 8Ω
C

-30

BIAS

-40

-50

-60

-70

CROSSTALK (dB)

-80

-90

-100

-110

-120
10 100k

CROSSTALK

vs. FREQUENCY

= 200mV

P-P

= 1μF

CHANNEL 2

CHANNEL 1

FREQUENCY (Hz)

EXITING SHUTDOWN

典型工作特性(续

MAX9718 toc31

10k1k100

MAX9718 toc33

SHDN
2V/div

OUT+
1V/div

OUT­1V/div

R

C
V

BIAS
CC

= 8Ω

L

= 0.1μF

= 3V

)

OUT+ - OUT­200mV/div

100μs/div

ENTERING POWER-DOWN

C

BIAS

= 3V

V

CC

= 8Ω

R

L

100μs/div

MAX9718 toc34

= 0.1μF

SHDN
1V/div

OUT+
1V/div

OUT­1V/div

OUT+ - OUT­200mV/div

C
V
R

BIAS

CC

= 8Ω

L

= 0.1μF

= 3V

4ms/div

EXITING POWER-DOWN

4ms/div

MAX9718 toc35

8 _______________________________________________________________________________________

OUT+ - OUT­200mV/div

SHDN
2V/div

OUT+
1V/div

OUT­1V/div

OUT+ - OUT­200mV/div

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

_____________________________________________________________________

(VCC= 5V, C

6

5

4

3

2

SUPPLY CURRENT (mA)

1

0

-40 85

= 0.1μF, THD+N measurement bandwidth = 22Hz to 22kHz, TA= +25°C, unless otherwise noted.)

BIAS

SUPPLY CURRENT

vs. TEMPERATURE

VCC = 5V

VCC = 3V

TEMPERATURE (°C)

0.03

0.02

MAX9718 toc36

0.01

0

-0.01

SHUTDOWN CURRENT (μA)

-0.02

-0.03

603510-15

-40 85

SHUTDOWN CURRENT

vs. TEMPERATURE

VCC = 5V

VCC = 3V

603510-15

TEMPERATURE (°C)

ތፒຫ৖ൈࡍ໭

典型工作特性(续

TURN-ON TIME

vs. DC BIAS BYPASS CAPACITOR

80

TO -3dB OF FINAL VALUE

70

MAX9718 toc37

TURN-ON TIME (ms)

60

50

40

30

20

10

0

0 1.00

VCC = 5V

C

(μF)

BIAS

______________________________________________________________________

引脚

MAX9718 MAX9719

TDFN-EP/

μMAX

UCSP TQFN-EP UCSP TSSOP-EP

名称

功能

NBY:8290NBY:82:

)

MAX9718 toc38

VCC = 3V

0.800.600.20 0.40

引脚说明

1 C2 — — — SHDN

——9B311SHDN

2 C1 — — — IN-

ߔڱพ൩Lj

ߔڱพ൩Ljّ٫౿ᅘပوߔڱพ൩ă
۴࿰พ൩ă

ߔڱன෷ࣁ၂พ൩Lj

3 B2 — — — SHDM

ݽ٫౿Ljهفݽ٫౿ᅘပو
٫౿Ljهفّ٫౿ᅘပو

4A1———IN+

5 A2 5 B2 7 BIAS

6 A3 — — — OUT-

7 B3 1, 6, 11

A2, C2,

C4

3, 8, 13 GND

8 — 13 — 15 N.C.

9 B1 8, 14 A4, D3 16, 10 V

CC

10 C3 — — — OUT+

— — 2 C1 4 INR+

— — 3 B1 5 INL-

— — 4 A1 6 INL+

— — 7 A3 9 OUTL+

ༀ࿰พ൩ă
ቓૣ౭ብసଁă
೥෷܅ؙಹݘพ־ă

ٜă

ྐઘLj௠ԩསઘă
٫ᆚă
೥෷܅ؙಹቁพ־ă

ᅚ෕لༀ࿰พ൩ă
ዳ෕ل۴࿰พ൩ă

ዳ෕لༀ࿰พ൩ă
ዳ෕ل೥෷܅ؙಹቁพ־ă

_______________________________________________________________________________________ 9

SHDN

وࣁ၂ടৈᅢ

SHDMቨSHDN

SHDN

SHDNพ൩(ӹ1)

SHDM

وኴຢă

وࣁ၂ă

พ൩Ǘ

SHDM

ă

SHDM

ّ