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

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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 _______________________________________________________________________________________

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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

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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

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2/5X

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________________________________________________________________

(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

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___________________________________________________________________

(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

ّ

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

___________________________________________________________________

引脚

TDFN-EP/

μMAX

— — 10 B4 12 OUTL-

— — 12 D4 14 OUTR+

— — 15 D2 1 OUTR-

— — 16 D1 2 INR-

—————EP

_____________________________

NBY:8290NBY:82:

MAX9718/MAX9719ก1.4W BTL

กة෕لႻ෕ಹ܅ؙಹLjۚ
ؙಹă઩ቸಹڞ঱ᅘّޢࠞߔڱன෷ࠧჟ૘࿘وᆹ
ᄞᄀቨޢ௢ă
ైብཛྷݽ٫౿ᅘပࢪّ٫౿ᅘပߔڱăሦဗಹᅑݽพ
־٫ૣᄞ౷܅ؙಹዩ֑Ljᄞ౷܅ؙಹైብཛྷ



ޢ௢༐

(

դ౹ă

UCSP TQFN-EP UCSP TSSOP-EP

详细说明

Ⴛ෕ಹ܅ؙಹă

MAX9719

MAX9718

ă໗ޥ৹ٻᇜᄐࠧ߈ڊᇜᄐ

)

঱ᅘใพ൩ߔڱ۽ѦLj৹ჾܖӼ

ก઎໛෕Ⴛ෕ಹ܅

(0dBĂ3dBĂ6dB)

MAX9718

BTL

܅ؙಹ

名称

ዳ෕ل೥෷܅ؙಹݘพ־ă
ᅚ෕ل೥෷܅ؙಹቁพ־ă
ᅚ෕ل೥෷܅ؙಹݘพ־ă

ᅚ෕ل۴࿰พ൩ă

ଭࠒరLjEPᅳ

表

关断模式选择

1.

SHDM SHDN OPERATIONAL MODE

0 0 Shutdown

0 1 Normal operation

1 0 Normal operation

1 1 Shutdown

GND

_____________________________

功能

ઘă

(MAX9718)

引脚说明(续

应用信息

)

BIAS

ሦဗಹޠዷᇀ
ብ٫ႅLjݡޮன౭ብ٫ႅ࿰ڶᅢٜ٫཭ཛྷ
٫ଁࣞ໗ޥᆹᄞᄀቨLjნཛྷᄞ౷พ־හብቓૣ౭ብ٫౿ă
Ѣሙ

BIAS

༶ԩݘᆾLjჾஊᄸ࿼ሿ໛၂௢ă

2.7Vባ5.5V

٫൛

ԩܖوํடၭᇗసଁ٫൛ăԥეᇀ

ة٫ᆚLjᅑ௠ԩդූޮன౭

V

/2ăBIAS

CC

ᄧ

BIAS

关断模式

MAX9718/MAX9719

ّ঄ຢ٫ૣຈࠞă൩ߔڱன෷ࡍLjಹو౭ብ٫ଁ
ӇᅋLj܅ؙಹพ־ӰཛྷݽየኴຢLj

GNDăMAX9718وSHDM

ཛྷݽ٫౿෫Lj

SHDM

ّ٫౿෫Lj
঱ᅘّ٫౿ᅘပوߔڱพ൩

SHDN

঱ᅘ

SHDN

พ൩ཛྷّ٫౿ᅘပ(ӹ1)ă

ّޢࠞߔڱன෷Lj৹ჾ

100nA

ڭӇഝڑف

BIAS

พ൩ᅋቨ

พ൩ཛྷݽ٫౿ᅘပǗ

ă

SHDN

SHDN

وࣁ၂ă

ཛྷ

SHDM

MAX9719

杂音抑制

MAX9718/MAX9719

ଁăಶڑ߹֔ቲLj܅ؙಹޮன౭ብ٫ႅኒණෙفቓૣ
౭ብ٧ă൩ߔڱன෷෫Lj܅ؙಹพ־ቐࣺ঱ᅘ
ݽየăሦቸ޵ؙؙّષ־࿦ᇀᄞ౷Ԓڰو௢ફă

঱ᅘ

ჟ૘࿘وᆹᄞᄀቨ٫

Maxim

100kΩ

و

放大器

BTL

MAX9718/MAX9719

֎ཛྷ೥ݘᆾࢪ
ڭైብوქޔݘᆾڭٜăᇀ࿰ༀ໫࿒Lj՘ܖ۽෷ഝ
ڑݘᆾهفوพ־٫ႅกةڭ܅ؙಹو۠ӂă

ᅑᅢพ־٫ႅࣩӂLjᇀ࿒઼ާ෷ቲᅋ

V

OUT(P-P)

ᅑᅢ՘ܖพ־౭ብᇀ٫ᆚቲ٧Ljݘᆾ઩ڭୣᅘ঍ቓૣ٫
ႅăሦჅট৹ჾෛണةڭ܅ؙಹቲຑၖეوޒቓ٫൛ă
ሦဗ٫൛໛ࢵؙĂ֑ӊݽLjࣞܑ٫ଁғࣺLjᅞّ
ષّ౷၂௢ቚӶă

৹ჾهف๜ӂوพ־ޢଔǖ

ෳᅋ՘ܖ۽෷ഝڑݘᆾLjሦቸైብ

BTLăBTL

V

RMS

P

ైብ(༐1)ᅍᅢةڭైብLjة

2 x V

V

OUT P P

22

V

RMS

R

−()

2

L

OUT

=

=

OUT(P-P)

ໜؠ

10 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

+1

-1

༐1/ ೥ݘᆾైብ

V

OUT(P-P)

2 x V

V

OUT(P-P)

OUT(P-P)

功耗与散热

ᇀӶኼޠዷ໫࿒Lj

MAX9718/MAX9719

ԩܖޢଔLjᇀAbsolute Maximum Ratingsԩܖو

Power Dissipation

ቲޖ־ષ୧ቸܢኰوዮؙޢଔࠞൾ቗Lj

ნ৹ჾᅋჾ࿒ާ෷ࣜ๻ǖ

෷ቲ

T

J(MAX)

P

D MAX

()

ก

+150°CLjT

TT

=

A

−

J MAX A

()

θ

JA

ก࡯অུڪLj

Maximum Ratingsԩܖߢڊوې࿅ืوؽืLjة཭ཛྷ

ăઋ൥Lj

°C/W

ᅳةڭైብ࿰ӔLj

TQFN

ܢኰو

BTL

௠ԩޢࠞوᇜࣩăޖڊ

V

ก

+59.2°C/W

θ

JA

ైብพ־ޢଔوᇜࣩቓـቤષ

ࠧݘᆾࡍLj௠ԩޢࠞوዮؙ቗

CC

ᅑ࿒෷ࣜ๻ǖ

2

V

2

P

D MAX

()

CC

=

2

R

π

L

൲ᇀޖڊ໫࿒௠ԩޢࠞմ־ષޖڊܢኰຑᆰၛوዮؙ
቗Lj໼߹ᇜؙٜஎࢵĂ໗ݽൾെ௢઒Ljჾࣆᇜؙಹ
ᄧ࿯و֧؍(
ޢࠞو۽ۨᅘǖဏ

Ԧ࿯ᅳٜ

V

CC

ԩܖ)৹ჾّޢࠞăದຓّ

Ăᇜؙݘᆾየ৩Ăّ࡯অུڪĂ

ဏᇜᄐࢪဏพ൩ဳٌࠟă

െ߹ᆾү࡜࢙࿮ቨ
ུմ߹
ུ࿒

+160°C
15°C

MAX9718/MAX9719

෫Ljെү࡜٫ଁᅋ܅ؙಹพ־࣌ă

ࡍᆿಶڑ܅ؙಹăઘၦെ߹ᆾഉ࿒Lj๾ዅ

ಹෙུĂུۚդූୀ֭พ־ă

ཛྷࢩهዮࣧوޢଔࠞൾᅳൾെ໫Lj

TQFNࠧTSSOP

ܢኰණوଭࠒరᄮᅳؙஎࢵٜՍ࿰ઘă

৹ჾࠞൾ৊ؙ

Continuous

กAbsolute

θ

JA

ă

وዜޢࠞăص

μMAXĂTDFN

2/5X

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

༐2/ හብ

MAX9718A/H/MAX9719A

ތፒຫ৖ൈࡍ໭

R

F

R

F

MAX9718A/H

IN-

IN+

MAX9719A

BIAS

GENERATOR

وᇜᄐ

(OPTIONAL)

(OPTIONAL)

R

IN

R

IN

MAX9718B/EĂMAX9718C/FĂMAX9718D/GĂMAX9719B
MAX9719CࠧMAX9719D

௕

ăሦࡧષහࣜĂဏષ༶ြ֧؍ĂԌෛണષᇜᄐහ

)

ڊ٫የă

ޢ௢༐

ቲو٫የ

঱ᅘ௠ԩ߈ڊᇜᄐ(

ࠧ

R

ᅋࢩه୧ޔ߈ڊ

R

1

2

ᇜᄐă

ᅋ༶ԩ۴٫የහብ
٫የ

෷ቲ

20kΩ

R

ࠧ

R

R

F

IN

กຑಜཏو٫ႅᇜᄐăᅢกLj

A

V

෫ᇜᄐཛྷ

৹ჾก߈ڊ٫የࢪ৹Ӱ٫የLjᆰၛෳᅋื٫཭ಹᇀ

F

MAX9718A/HࠧMAX9719A

Ѣሙ࿒෷හብ܅ؙಹᇜᄐǖ

(༐2)

R

A

2V/Vࢪ6dB

F

=

V

R

IN

ă

R

IN

൫ቨ࿒ݢӰᇜᄐă

Ă

OUT+

OUT-

固定差分增益

ၭျቚ

可调差分增益

增益设置电阻

وᇜᄐă

ട

10kΩLjR

F

NBY:8290NBY:82:

Ă

ട

______________________________________________________________________________________ 11

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

输入滤波器

ഩ՘ܖ܅ؙಹوพ൩৹ჾ౭ብᇀ٫ᆚቲ٧ჾ༶و٫ႅăޮ
ன۴٫ଁᅋٻพ൩౭ብLjവүพ־౭ብ෶ቷү֞ᇀ
٫ᆚቲ٧׌ăቝეޮனพ൩٫ႅᇀ
ӹቚڊوېڊޠዷ۶ཙჾ௠Ljটԥၖეพ൩٫൛ă

൥߷ෳᅋષพ൩٫൛Ljพ൩٫൛
໼କԒಹLj৹ჾဋׅพ൩ဳࠟቲوቓૣ౭ብăૣᱺࠩ
٫൛ᆰၛ܅ؙಹཛྷဳࠟ໗ޥዮࣧوቓૣ౭ብă࣯ڊဳࠟ
ᆚየ৩ཛྷ0Ljݽ໼କԒಹو

f

=

dB

−

3

൥߷

NBY:8290NBY:82:

ᅘّ٫ႅ࿅ื٫ቬو٫൛Lj൥᭕ࢪଋ٫٫൛ă໋ׯ
٫൛ٌݽ٫ႅ࿅ื٫൛৹௢࢙ـቤّ౷෡ሪࣩহă

BIAS

సଁ٫൛
ჾݢජ
ᆹᄞوಶڑቓૣ౭ብԒြăᅋ

GND

دෳ
܅େ10ӂLjدෳ
༶ԩݘᆾă

හብ߹ݽLj࢙ᄸ࿼܅ؙಹوّ౷࿼ᄮăၭᅋ঱

f

-3dB

ᄧก௠ԩդූو

໼߹ّ٫ᆚᅳޮன౭ብ٧وᇑ෕ᆚ৹

C

BIAS

PSRRࠧTHD+N

ăؙ൛቗و

t

ON/tOFF

C

෫ࣺӰେă

PSRR

2π

VCC/2

၂௢LjԌཛྷႻ෕ಹ܅ؙಹ໗ޥྐ

ݽؕ

(

BIAS

1μFC

ݢජ

Electrical Characteristics

ᅳ

C

IN

٧ཛྷǖ

-3dB

1

RC

IN IN

౭ብ٫ႅوพ־ڭă

0.1μF

৹ჾݢජ

1μ F)

٫൛ෳـ໼/ߔӡ෫ࣺ

BIAS

20dB (1kHz)ăBIAS

ქಲ޵֑ષݽ

R

IN

٫൛

BIAS

BIAS

PSRR

׌ԥე

电源旁路

คصو٫ᆚసଁ৹ჾവүّᇑ෕Ăّ෡ሪޠዷLjᇀ

ቐࣺ

GND

໣ࣩې༶وؙ٫൛ăసଁ٫൛ᄮ৹௢৯ಹѠኰă

໋ׯ٫൛ăޗয঱໛ᄮᅋوၖഓLj৹ჾ

1μF

电容

BIAS

సଁف

၂௢Lj

ᅳ

V

CC

布线与接地

નࠝو
܅ؙಹพ־ڭෳᅋوᄧ࿯Ljჾّᅑᅢᄧ࿯وࣚූ٫
የຑᄧಲوຈࠞLjԌݢජಹوൾെăનࠝوٜ৹ჾ
ݢජᄞ౷၂௢Ăဏ໼لࣺהൃLjԌ܀ቛืዖ৚ߔᇑ෕
ᱺࠩفᄞ౷ဳࠟቲă

MAX9718/MAX9719وTDFNĂTQFNĂTSSOPࠧμMAX

ܢኰو࿒۽ڞᅘൾെଭࠒరăሦޔࠒర໗ޥ׹ߘာف

PCB

وࡨLjෳᅋۂޔ߹ଭࠒరᅳٜՍ࿰ઘă

_______________________UCSP

ᅘߔ

UCSP

ྲĂ

PCB

ࣆ৹৯၂Ռฎ߷ٌዮူဳྲLjഋԸ৬ᄮᅋӖࣝ

౮࣌ܢኰ)XMQ*ࣆದᄮᅋ

____________________________

PART MONO STEREO

MAX9718A/H √ — Adjustable √
MAX9718B/E √ —0 √
MAX9718C/F √ —3 √
MAX9718D/G √ —6 √
MAX9719A — √ Adjustable —
MAX9719B — √ 0—
MAX9719C — √ 3—
MAX9719D — √ 6—

Ԧ࿯กࢩهዮࣧ၂௢وߔăᇀ٫ᆚพ൩ࠧ

PCB

وቓـെ໼لLjᅋّܢኰوെየă൥߷ၖე

应用信息

وዮူᄮᅋ࿈Ljດو޵Ă༶ြ֧؍Ăᆾ؞ဳ

࣒ฯĂࠒഒ-ࠒరԦনĂ༚و࢐ૣࠒུڪച࿯ჾ

ǖ



1891

ă

选型指南

GAIN

(dB)

SELECTABLE

SHUTDOWN

POLARITY

12 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

ތፒຫ৖ൈࡍ໭

_________________________________________________________________________

PART TEMP RANGE

MAX9718AEUB+ -40°C to +85°C 10 μM AX - E P * +AAAA

M AX 9718BE BL+ TG45 -40°C to +85°C 3 x 3 U C S P +ADX

MAX9718BETB+T -40°C to +85°C 10 TD FN - E P * +AAW

MAX9718BEUB+ -40°C to +85°C 10 μM AX - E P * +AAAB

M AX 9718C E BL+ TG45 -40°C to +85°C 3 x 3 U C S P +ADZ

MAX9718CETB+T -40°C to +85°C 10 TD FN - E P * +AAX

MAX9718CEUB+ -40°C to +85°C 10 μM AX - E P * +AAAC

M AX 9718D E BL+ TG45 -40°C to +85°C 3 x 3 U C S P +AEA

MAX9718DETB+T -40°C to +85°C 10 TD FN - E P * +AAY

MAX9718DEUB+ -40°C to +85°C 10 μM AX - E P * +AAAD

M AX 9718E E BL+ TG45 -40°C to +85°C 3 x 3 U C S P +AFB

MAX9718EETB+T -40°C to +85°C 10 TD FN - E P * +ASY

MAX9718EEUB+ -40°C to +85°C 10 μM AX - E P * +AAAJ

M AX 9718FE BL+ TG45 -40°C to +85°C 3 x 3 U C S P +AFC

MAX9718FETB+T -40°C to +85°C 10 TD FN - E P * +ASZ

MAX9718FEUB+ -40°C to +85°C 10 μM AX - E P * +AAAK

M AX 9718G E BL+ TG45 -40°C to +85°C 3 x 3 U C S P +AFD

MAX9718GETB+T -40°C to +85°C 10 TD FN - E P * +ATA

PIN­PACKAGE

T O P

M A R K

PART TEMP RANGE

MAX9718GEUB+ -40°C to +85°C 10 μM AX - E P * +AAAL

M AX 9718H E BL+ TG45 -40°C to +85°C 3 x 3 U C S P +AFE

MAX9718HETB+T -40°C to +85°C 10 TD FN - E P * +ATB

MAX9718HEUB+ -40°C to +85°C 10 μM AX - E P * +AAAM

MAX9719AEBE+T -40°C to +85°C 4 x 4 U C S P —

MAX9719AETE+ -40°C to +85°C 16 TQ FN - E P *—

MAX9719AEUE+ -40°C to +85°C 16 TS S O P - E P *—

M AX 9719BE BE + TG45 -40°C to +85°C 4 x 4 U C S P —

MAX9719BETE+ -40°C to +85°C 16 TQ FN - E P *—

MAX9719BEUE+ -40°C to +85°C 16 TS S O P - E P *—

M AX 9719C E BE + TG45 -40°C to +85°C 4 x 4 U C S P —

MAX9719CETE+ -40°C to +85°C 16 TQ FN - E P *—

MAX9719CEUE+ -40°C to +85°C 16 TS S O P - E P *—

M AX 9719D E BE + TG45 -40°C to +85°C 4 x 4 U C S P —

MAX9719DETE+ -40°C to +85°C 16 TQ FN - E P *—

MAX9719DEUE+ -40°C to +85°C 16 TS S O P - E P *—

+

ӹ෸ྐೆ

*EP =
G45

(Pb)/ܻࠩRoHS

ଭࠒరă

ӹ෸ߘာ؞ᅘү࡜Սă

Ӷኼوܢኰă

PIN­PACKAGE

定购信息(续

T O P

M A R K

NBY:8290NBY:82:

)

________________________ UCSP

AAA
XXX

标记信息

■: A1 Bump indicator

AAA: Product code

XXX: Lot code

____________________________

芯片信息

MAX9718 TRANSISTOR COUNT: 2359

MAX9719 TRANSISTOR COUNT: 4447

PROCESS: BiCMOS

______________________________________________________________________________________ 13

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

___________________________________________________________________

2.7V TO 5.5V

10μF

NBY:8290NBY:82:

IN1+

IN1-

IN2+

IN2-

1μF

V

CC

INL+

INL-

INR+

INR-

GND

SHDN

Q

Q

MAX9719

MAX961

OUTL+

OUTL-

OUTR+

OUTR-

BIAS

0.1μF

IN-

V

CC

IN+

0.1μF 0.1μF

2.7V TO 5.5V

220kΩ

系统框图

SHDN

INL

INR

PV

SV

DD

DD

MAX9722B

C1P CIN

1μF

OUTL

OUTR

PV

SV

SS

SS

1μF0.1μF1μF

1μF

1μF

2.7V TO 5.5V

AUTOMATIC HEADPHONE DETECTION AND SPEAKER DISABLE CIRCUIT

14 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

ތፒຫ৖ൈࡍ໭

___________________________________________________________________

2.7V TO 5.5V
SUPPLY

V

CC

IN-

IN+

BIAS

SHDN

SHDM

GND

BIAS

GENERATOR

SHUTDOWN

CONTROL

R

2

R

1

OUT+

R

1

R

2

OUT-

MAX9718B/E
MAX9718C/F
MAX9718D/G

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

1.0μF

C

IN

(OPTIONAL)

C

IN

(OPTIONAL)

C

BIAS

0.1μF

NBY:8290NBY:82:

功能框图

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

MAX9718A

= 2

A

V

= 1Hz

f

C

= 1μF

C

IN

= 10kΩ

R

IN

= 20kΩ

R

F

2.7V TO 5.5V

1.0μF

C

IN

(OPTIONAL)

C

IN

(OPTIONAL)

SUPPLY

R

IN

R

IN

C

BIAS

0.1μF

V

CC

IN-

IN+

BIAS

SHDN

SHDM

GND

R

F

BIAS

GENERATOR

SHUTDOWN

CONTROL

R

F

MAX9718A/H

OUT+

OUT-

______________________________________________________________________________________ 15

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

____________________________________________________________________

2.7V TO 5.5V
SUPPLY

1.0μF

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

NBY:8290NBY:82:

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

C

(OPTIONAL)

C

(OPTIONAL)

C

BIAS

0.1μF

C

(OPTIONAL)

C

(OPTIONAL)

V

CC

IN

IN

IN

IN

INL-

INL+

BIAS

SHDN

INR-

INR+

GND

MAX9719B
MAX9719C
MAX9719D

BIAS

GENERATOR

R

1

R

1

SHUTDOWN

CONTROL

R

1

R

1

R

2

OUTL+

OUTL-

R

2

R

2

OUTR+

OUTR-

R

2

功能框图(续

)

MAX9719A

= 2

A

V

= 1Hz

f

C

= 1μF

C

IN

= 10kΩ

R

IN

= 20kΩ

R

F

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

INVERTING

DIFFERENTIAL

INPUT

NONINVERTING

DIFFERENTIAL

INPUT

2.7V TO 5.5V

1.0μF

C

IN

(OPTIONAL)

C

IN

(OPTIONAL)

C

IN

(OPTIONAL)

C

IN

(OPTIONAL)

SUPPLY

R

IN

R

IN

C

BIAS

0.1μF

R

IN

R

IN

V

CC

INL-

INL+

BIAS

SHDN

INR-

INR+

GND

R

F

MAX9719A

BIAS

GENERATOR

R

F

R

F

SHUTDOWN

CONTROL

R

F

OUTL+

OUTL-

OUTR+

OUTR-

16 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

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ތፒຫ৖ൈࡍ໭

___________________________________________________________________

TOP VIEW TOP VIEW

(BUMPS ON BOTTOM)

10

SHDN

SHDM

1

2

IN-

3

MAX9718

4

5

OUT+

9

V

CC

N.C.

8

GNDIN+

7

OUT-BIAS

6

μMAX 3 × 3 UCSP

TOP VIEW

TOP VIEW
(BUMPS ON BOTTOM)

SHDN

SHDM

1

2

IN-

3

MAX9718

4

5

10

OUT+

9

V

CC

N.C.

8

GNDIN+

7

OUT-BIAS

6

123

IN+

A

V

B

CC

IN-

C

1234

GND

INL+

A

BIAS

INL-

B

GND GND

INR+

C

BIAS

SHDM

SHDN

MAX9718

OUTL+

SHDN

OUT-

GND

OUT+

MAX9719

OUTL-

V

CC

NBY:8290NBY:82:

引脚配置

(3mm × 3mm × 0.8mm)

TDFN

TOP VIEW TOP VIEW

OUTR+

GND

OUTL-

SHDN

12

11 10 9

N.C.

V

13

14

CC

V

8

CC

OUTL+

7

MAX9719

OUTR-

INR-

15

16

1234

GND

INR+

INL-

INL+

GND

6

BIAS

5

TQFN

(4mm × 4mm × 0.8mm)

______________________________________________________________________________________ 17

D

OUTR-

INR-

GND

INR+

INL+

BIAS

GND

INL-

INR-

1

2

3

4

5

6

7

8

OUTR-

V

4 × 4 UCSP

MAX9719

TSSOP-EP

OUTR+

CC

16

V

CC

15

N.C.

14

OUTR+

13

GND

12

OUTL-

SHDN

11

10

V

CC

OUTL+

9

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

```````````````````````````````````````````````````````````````````````````` ᓤቧᇦ

ྙኊᔢதࡼᓤᅪተቧᇦ๤ݚ௜Lj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjᓤܠ൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞܭာSpITᓨზă
ᓤᅄᒦభถ۞ݙᄴࡼᆘᓮᔊLjࡣᓤᅄᒑᎧᓤᎌLjᎧSpITᓨზᇄă

ᓤಢቯ ᓤܠ൩ ᆪ࡭ܠ

3 x 3 UCSP B9+1 21-0093

10 TDFN-EP T1033+1 21-0137

10 μMAX U10E+3 21-0109

4 x 4 UCSP B16+6 21-0101

16 TQFN-EP T1644+4 21-0139

16 TSSOP-EP U16E+3 21-0108

NBY:8290NBY:82:

9LUCSP, 3x3.EPS

18 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

```````````````````````````````````````````````````````````````````````````` ᓤቧᇦ)ኚ*

ྙኊᔢதࡼᓤᅪተቧᇦ๤ݚ௜Lj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjᓤܠ൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞܭာSpITᓨზă
ᓤᅄᒦభถ۞ݙᄴࡼᆘᓮᔊLjࡣᓤᅄᒑᎧᓤᎌLjᎧSpITᓨზᇄă

ތፒຫ৖ൈࡍ໭

NBY:8290NBY:82:

______________________________________________________________________________________ 19

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

ތፒຫ৖ൈࡍ໭

```````````````````````````````````````````````````````````````````````````` ᓤቧᇦ)ኚ*

ྙኊᔢதࡼᓤᅪተቧᇦ๤ݚ௜Lj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjᓤܠ൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞܭာSpITᓨზă
ᓤᅄᒦభถ۞ݙᄴࡼᆘᓮᔊLjࡣᓤᅄᒑᎧᓤᎌLjᎧSpITᓨზᇄă

COMMON DIMENSIONS

SYMBOL

MIN. MAX.

A 0.70 0.80

D 2.90 3.10

E 2.90 3.10

A1

0.00 0.05

L 0.20 0.40

0.25 MIN.k

A2 0.20 REF.

NBY:8290NBY:82:

PACKAGE VARIATIONS

PKG. CODE

T633-2

T833-2

T833-3

T1033-1

T1033MK-1

T1033-2

T1433-1

N

6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF

8 1.50±0.10 2.30±0.10

8 1.50±0.10 2.30±0.10

1.50±0.10

1.70±0.10 2.30±0.1014

D2

E2 e

2.30±0.1010

2.30±0.101.50±0.10

2.30±0.10 MO229 / WEED-3 2.00 REF0.25±0.050.50 BSC1.50±0.1010

JEDEC SPEC

0.65 BSC MO229 / WEEC

0.65 BSC MO229 / WEEC

0.50 BSC

0.50 BSC MO229 / WEED-3

0.40 BSC

0.40 BSC

0.40 BSC

MO229 / WEED-3

- - - -

- - - - 0.20±0.05 2.40 REFT1433-3F 14 2.30±0.101.70±0.10

b

[(N/2)-1] x e

0.30±0.05 1.95 REF

0.30±0.05 1.95 REF

2.00 REF0.25±0.05

0.25±0.05 2.00 REF10

2.40 REF0.20±0.05- - - -

0.20±0.05 2.40 REFT1433-2 14 2.30±0.101.70±0.10

20 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

ތፒຫ৖ൈࡍ໭

```````````````````````````````````````````````````````````````````````````` ᓤቧᇦ)ኚ*

ྙኊᔢதࡼᓤᅪተቧᇦ๤ݚ௜Lj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjᓤܠ൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞܭာSpITᓨზă
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10L UMAX, EXPPADS.EPS

NBY:8290NBY:82:

1

21-0109

______________________________________________________________________________________ 21

D

1

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ
2/5X

```````````````````````````````````````````````````````````````````````````` ᓤቧᇦ)ኚ*

ྙኊᔢதࡼᓤᅪተቧᇦ๤ݚ௜Lj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjᓤܠ൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞܭာSpITᓨზă
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ތፒຫ৖ൈࡍ໭

NBY:8290NBY:82:

16L,UCSP.EPS

22 ______________________________________________________________________________________

ࢅ߅۾Ă࡝ဉࡸ0ೂᄏဉĂ

2/5X

``````````````````````````````````````````````````````````````````````````` ᓤቧᇦ)ኚ*

ྙኊᔢதࡼᓤᅪተቧᇦ๤ݚ௜Lj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjᓤܠ൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞܭာSpITᓨზă
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24L QFN THIN.EPS

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TSSOP 4.4mm BODY.EPS

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MAX9718, MAX9719 低成本、单声道/立体声、1.4W差分音频功率放大器 - 概述

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Maxim > 产品 > 放大器和比较器 > MAX9718, MAX9719

MAX9718, MAX9719

低成本、单声道/立体声、1.4W差分音频功率放大器

低成本、单声道/立体声、1.4W差分音频功率放大器，适用于内置扬声器的便携式音频设备

概述 技术文档 定购信息 用户说明 (0) 所有内容

状况

状况：生产中。

概述 数据资料

MAX9718/MAX9719为差分输入音频功率放大器，特别适合用于具有内置扬声器的便携式音频设备。
差分输入结构改进了噪声抑制和提供共模抑制。桥接负载(BTL)结构尽可能地减少了外部元件数量，同
时提供高质量的功率音频放大。MAX9718为单声道放大器，而MAX9719为用于立体声系统的双声道放
大器。两种器件均能够在+5V单电源下向4Ω负载输出1.4W连续的平均功率，且THD+N低于1%。该类
器件提供可调增益的放大器，或0dB、3dB或6dB内部固定增益的放大器，以减少元件数目。

完整的数据资料

英文
中文

下载

Rev. 7 (PDF, 668kB)

下载

Rev. 7 (PDF, 1.1MB)

关断输入模式禁止偏置产生电路和放大器，将静态电流损耗减少到100nA以下。MAX9718关断输入能
够设置为高电平有效或低电平有效。该类器件具有Maxim广泛应用的咔嗒/噼噗声抑制电路，能够降低
启动和关断期间的咔嗒/噼噗声。

MAX9718引脚兼容于LM4895，采用9焊球UCSP™、10引脚TDFN或10引脚µMAX®封
装。MAX9719采用16引脚TQFN、16引脚TSSOP或16焊球UCSP封装。两种器件均工作在­40°C至+85°C的扩展级温度范围内。

现备有评估板：MAX9719AEVKIT MAX9718AEVKIT

关键特性 应用/使用

2.7V至5.5V单电源工作
217Hz下具有极高的- 93dB PSRR

向4Ω负载提供1.4W输出功率(每路通道)，具有1%的THD+N

移动电话

PDA

便携式设备
差分输入
内部固定增益以便减少元件数量
可调的增益选择(MAX9718A/MAX9719A)
100nA低功耗关断模式
上电/断电时，无咔嗒/噼噗声
改进性能、引脚兼容升级LM4895 (MAX9718D/G)

1.8V逻辑兼容

Key Specifications: Speaker Amplifiers

Spkr.
Amp.

I

CC

(mA)

P

into 4Ω

@ 1%

THD+N

(W)

Part

Number

Class

Spkr.
Amp.

V

CC

(V)

Spkr.
Amp.

V

CC

(V)

min max typ min min min min

MAX9718

AB 2.7 5.5 5 1.4 1.7 1.1 1.3 0.025 107 93 Yes 1 4

MAX9719 2

OUT

P

OUT

into 4Ω

@ 10%
THD+N

(W)

P

OUT

into 8Ω

@ 1%

THD+N

(W)

P

OUT

into 8Ω

@ 10%
THD+N

(W)

Spkr.
Amp.

Half

Pwr.

THD+N

(%)

SNR
(dB)

A-

Weighted

Spkr.

Spkr.

Amp.

PSRR

(dB)

Spkr.
Amp.

Ext.

Gain

Fxd.

Gain

(V/V)

Amp.

Fxd.
Gain

(V/V)

min min max

Features Channels

Differential

Inputs

查看所有Speaker Amplifiers (36)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may
differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized
distributor.

Price

See

Notes

$0.36

1

@1k

$0.50

@1k

图表

http://china.maxim-ic.com/datasheet/index.mvp/id/4126[2010-10-19 18:05:22]

MAX9718, MAX9719 低成本、单声道/立体声、1.4W差分音频功率放大器 - 概述

原理框图

相关产品

MAX9719AEVKIT MAX9719A、MAX9719B、MAX9719C和MAX9719D评估板
MAX9718AEVKIT MAX9718A、MAX9718B、MAX9718C和MAX9718D评估板

类似产品：浏览其它类似产品线

查看所有Speaker Amplifiers (39产品)

更多信息

顶标 MAX9718A
顶标 MAX9718B
顶标 MAX9718C
顶标 MAX9718D
顶标 MAX9718E
顶标 MAX9718F
顶标 MAX9718G
顶标 MAX9718H
新品发布 [ 2003-10-29 (English only) ]

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概述 技术文档 定购信息

概述
关键特性
应用/使用
关键指标
图表
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相关产品

数据资料
应用笔记
评估板
设计指南
可靠性报告
软件/模型

参考文献： 19-3050 Rev. 7; 2010-05-17

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