TI1-LM4936.pdf资源-CSDN文库

需积分: 5 50 浏览量 2022-12-03 19:26:11 上传评论 3 收藏 2.11MB PDF 举报

资源详情

资源评论

LM4936

www.ti.com

SNAS269A –APRIL 2005–REVISED APRIL 2013

LM4936 Boomer™ Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers with

Volume Control and Selectable Control Interface (SPI or I

Check for Samples: LM4936

FEATURES

DESCRIPTION

The LM4936 is a monolithic integrated circuit that

• Selectable SPI or I

C Control Interface

provides volume control, and stereo bridged audio

• System Beep Detect

power amplifiers capable of producing 2W into 4Ω

(1)

• Stereo Switchable Bridged/Single-Ended

with less than 1% THD or 2.2W into 3Ω

(2)

with less

Power Amplifiers

than 1% THD.

• Selectable Internal/External Gain and Bass

Boomer audio integrated circuits were designed

Boost

specifically to provide high quality audio while

requiring a minimum amount of external components.

• “Click and Pop” Suppression Circuitry

The LM4936 incorporates a SPI or I

C Control

• Thermal Shutdown Protection Circuitry

Interface that runs the volume control, stereo bridged

• Headphone Sense

audio power amplifiers and a selectable gain or bass

boost. All of the LM4936's features (i.e. SD, Mode,

APPLICATIONS

Mute, Gain Sel) make it optimally suited for

multimedia monitors, portable radios, desktop, and

• Portable and Desktop Computers

portable computer applications.

• Multimedia Monitors

The LM4936 features an externally controlled, low-

• Portable Radios, PDAs, and Portable TVs

power consumption shutdown mode, and both a

power amplifier and headphone mute for maximum

KEY SPECIFICATIONS

system flexibility and performance.

• P

at 1% THD+N

– into 3Ω, 2.2W (Typ)

– into 4Ω, 2.0W (Typ)

(1) When properly mounted to the circuit board, LM4936MH will

– into 8Ω, 1.25W (Typ)

deliver 2W into 4Ω. See Application Information section

HTSSOP PACKAGE PCB MOUNTING CONSIDERATIONS

• Single-ended mode - THD+N at 90mW into

for more information.

32Ω, 1% (Typ)

(2) An LM4936MH that has been properly mounted to the circuit

• Shutdown current, 0.7µA (Typ) board and forced-air cooled will deliver 2.2W into 3Ω.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2Boomer is a trademark of Texas Instruments.

3All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

LM4936

www.ti.com

SNAS269A –APRIL 2005–REVISED APRIL 2013

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1)(2)

Supply Voltage 6.0V

Storage Temperature -65°C to +150°C

Input Voltage −0.3V to V

+0.3V

Power Dissipation

(3)

Internally limited

ESD Susceptibility

(4)

2000V

ESD Susceptibility

(5)

200V

Junction Temperature 150°C

Vapor Phase (60 sec.) 215°C

Soldering Information Small Outline Package

Infrared (15 sec.) 220°C

(typ) - PWP0028A 2°C/W

(typ) - PWP0028A (HTSSOP)

(6)

41°C/W

(typ) - PWP0028A (HTSSOP)

(7)

54°C/W

(typ) - PWP0028A (HTSSOP)

(8)

59°C/W

(typ) - PWP0028A (HTSSOP)

(9)

93°C/W

(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and

specifications.

(3) The maximum power dissipation must be derated at elevated temperatures and is dictated by T

JMAX

, θ

, and the ambient temperature

. The maximum allowable power dissipation is P

DMAX

= (T

JMAX

− T

)/θ

. For the LM4936, T

JMAX

= 150°C, and the typical junction-to-

ambient thermal resistance for each package can be found in the Absolute Maximum Ratings section above.

(4) Human body model, 100pF discharged through a 1.5kΩ resistor.

(5) Machine Model, 220pF – 240pF discharged through all pins.

(6) The θ

given is for an PWP0028A package whose HTSSOP is soldered to a 2in

piece of 1 ounce printed circuit board copper on a

bottom side layer through 21 8mil vias.

(7) The θ

given is for an PWP0028A package whose HTSSOP is soldered to an exposed 2in

piece of 1 ounce printed circuit board

copper.

(8) The θ

given is for an PWP0028A package whose HTSSOP is soldered to an exposed 1in

piece of 1 ounce printed circuit board

copper.

(9) The θ

given is for an PWP0028A package whose HTSSOP is not soldered to any copper.

Operating Ratings

Temperature Range T

MIN

≤ T

≤T

MAX

−40°C ≤ TA ≤ 85°C

2.7V ≤ V

≤ 5.5V

Supply Voltage

(1)

C/SPI V

≤ V

2.4V ≤ I

C/SPI V

≤ 5.5V

(1) I

C/SPI V

must not be larger than V

at any time or damage to the IC may occur. During power up and power down, I

C/SPI V

must remain equal to V

or lower.

Product Folder Links: LM4936

LM4936

SNAS269A –APRIL 2005–REVISED APRIL 2013

www.ti.com

Electrical Characteristics for Entire IC

(1)(2)

The following specifications apply for V

= 5V unless otherwise noted. Limits apply for T

= 25°C.

LM4936

Units

Symbol Parameter Conditions

(Limits)

Typical

(3)

Limit

(4)

Supply Voltage 2.7 V (min)

5.5 V (max)

Quiescent Power Supply Current V

= 0V, I

= 0A 10 25 mA (max)

Shutdown Current V

shutdown

= V

0.7 2.0 μA (max)

Headphone Sense High Input Voltage 4 V (min)

Headphone Sense Low Input Voltage 0.8 V (max)

(1) All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical

application as shown in Figure 2.

(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3) Typicals are measured at 25°C and represent the parametric norm.

(4) Limits are specified to Texas Instruments' AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are specified

by design, test, or statistical analysis.

Electrical Characteristics for Volume Control

(1)(2)

The following specifications apply for V

= 5V. Limits apply for T

= 25°C.

LM4936

Units

Symbol Parameter Conditions

(Limits)

Typical

(3)

Limit

(4)

RANGE

Volume Control Range Maximum gain setting 0 ±0.75 dB (max)

Minimum gain setting -91 -75 dB (min)

Ch-Ch

Channel to Channel Gain Mismatch f

= 1kHz 0.35 dB

Mute Attenuation Mute Mode -78 dB (min)

(1) All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical

application as shown in Figure 2.

(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3) Typicals are measured at 25°C and represent the parametric norm.

(4) Limits are specified to Texas Instruments' AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are specified

by design, test, or statistical analysis.

Product Folder Links: LM4936

LM4936

www.ti.com

SNAS269A –APRIL 2005–REVISED APRIL 2013

Electrical Characteristics for Control Interface

(1) (2)

The following specifications apply for V

= 5V, V

= 3V and 2.4V ≤ I

C/SPI V

≤ 5.5V. Limits apply for T

= 25°C.

LM4936

Units

Symbol Parameter Conditions

(Limits)

Typical

(3)

Limit

(4)

SCL period 2.5 μs (min)

SDA Set-up Time 100 ns (min)

SDA Stable Time 0 ns (min)

Start Condition Time 100 ns (min)

Stop Condition Time 100 ns (min)

Digital Input High Voltage 0.7 X V (min)

C/SPIV

Digital Input Low Voltage 0.3 X V (max)

C/SPIV

SPI ENABLE Setup Time 50 ns (min)

SPI ENABLE Hold Time 50 ns (min)

SPI ENABLE High Time 50 ns (min)

SPI DATA Setup Time 50 ns (min)

SPI DATA HOLD Time 50 ns (min)

SPI CLOCK Setup Time 50 ns (min)

SPI CLOCK High Pulse Width 100 ns (min)

SPI CLOCK Low Pulse Width 100 ns (min)

CLK

SPI CLOCK Frequency 5 MHz (max)

(1) All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical

application as shown in Figure 2.

(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3) Typicals are measured at 25°C and represent the parametric norm.

(4) Limits are specified to Texas Instruments' AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are specified

by design, test, or statistical analysis.

Electrical Characteristics for Single-Ended Mode Operation

(1)(2)

The following specifications apply for V

= 5V. Limits apply for T

= 25°C.

LM4936

Units

Symbol Parameter Conditions

(Limits)

Typical

(3)

Limit

(4)

Output Power THD = 1%; f = 1kHz; R

= 32Ω 90 mW

THD = 10%; f = 1 kHz; R

= 32Ω 110 mW

THD+N Total Harmonic Distortion+Noise P

OUT

= 20mW, f = 1kHz, R

= 32Ω, 0.02 %

= 1, 80kHz BW

PSRR Power Supply Rejection Ratio C

= 1μF, f = 120Hz, 57 dB

Input Terminated

RIPPLE

= 200mVp-p

OUT

Output Noise A-Wtd Filter 18 µV

talk

Channel Separation

(5)

f = 1kHz, C

= 1μF 63 dB

(1) All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical

application as shown in Figure 2.

(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3) Typicals are measured at 25°C and represent the parametric norm.

(4) Limits are specified to Texas Instruments' AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are specified

by design, test, or statistical analysis.

(5) PCB design will affect Crosstalk performance.

Product Folder Links: LM4936

剩余36页未读，继续阅读

评论收藏

内容反馈

TI1-LM4936.pdf

评论0

最新资源

TI1-LM4936.pdf

评论0

最新资源

相关推荐

TI1-SN74ACT72211L.pdf

TI1-PRM57L843ZWTT.pdf

TI1-SN74ALS235.pdf

TI1-SN74ALS234.pdf

TI1-SN74ALS2232A.pdf

TI1-LM49200.pdf

TI1-TMS464409.pdf

TI1-TMS465169.pdf

TI1-TMS416169.pdf

TI1-JBP28L22.pdf

TI1-TIB82S167BC.pdf

TI1-TMS29F002B.pdf

TI1-TMS626812A.pdf

TI1-TMS28F004AFT.pdf

TI1-TMS416800.pdf

TI1-TPA0152.pdf

TI1-TIM9907.pdf

TI1-TMS44400-60DJ.pdf

TI1-TIBPAL16R6-15MFKB.pdf

TI1-TM893NBM36H.pdf

TI1-TMS29F010.pdf

TI1-MM54C910.pdf

TI1-TM497MBM36A.pdf

TI1-TMS417800A-60DZ.pdf

TI1-SN74ACT7801-18FN.pdf

TI1-TMS28F1600.pdf

TI1-TMS416100P.pdf

TI1-TIBPLS506AC.pdf

TI1-TIBPSG507AC.pdf