Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Audio amplifier 1-channel (mono) Class AB MSOP 8 PowerPad

APPLICATION CIRCUIT

O+

O-

GND

To Battery

Bias

Circuitry

IN-

IN+

In From

DAC

SHUTDOWN

(BYPASS)

(1)

DGN PACKAGE

(TOP VIEW)

SHUTDOWN

BYPASS

IN+

IN-

O-

GND

O+

100 kΩ

40 kΩ

SHUTDOWN

BYPASS

IN+

IN-

O-

GND

O+

8-PIN QFN (DRB) PACKAGE

(TOP VIEW)

(1)

(BYPASS)

is optional.

TPA6211A1

www.ti.com

SLOS367D –AUGUST 2003– REVISED JUNE 2011

3.1-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER

Check for Samples: TPA6211A1

FEATURES

APPLICATIONS

• Designed for Wireless or Cellular Handsets

• Ideal for Wireless Handsets, PDAs, and

and PDAs Notebook Computers

• 3.1 W Into 3Ω From a 5-V Supply at

DESCRIPTION

THD = 10% (Typ)

The TPA6211A1 is a 3.1-W mono fully-differential

• Low Supply Current: 4 mA Typ at 5 V

amplifier designed to drive a speaker with at least

• Shutdown Current: 0.01 μA Typ

3-Ω impedance while consuming only 20 mm

total

• Fast Startup With Minimal Pop

printed-circuit board (PCB) area in most applications.

• Only Three External Components

The device operates from 2.5 V to 5.5 V, drawing

– Improved PSRR (-80 dB) and Wide Supply

only 4 mA of quiescent supply current. The

Voltage (2.5 V to 5.5 V) for Direct Battery

TPA6211A1 is available in the space-saving

Operation

3-mm × 3-mm QFN (DRB) and the 8-pin MSOP

(DGN) PowerPAD™ packages.

– Fully Differential Design Reduces RF

Rectification

Features like –80 dB supply voltage rejection from

– -63 dB CMRR Eliminates Two Input

20 Hz to 2 kHz, improved RF rectification immunity,

Coupling Capacitors

small PCB area, and a fast startup with minimal pop

makes the TPA6211A1 ideal for PDA/smart phone

applications.

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.

2PowerPAD is a trademark of Texas Instruments.

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.

Summary of content (32 pages)

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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com 3.1-W MONO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER Check for Samples: TPA6211A1 FEATURES APPLICATIONS • • 1 2 • • • • • Designed for Wireless or Cellular Handsets and PDAs 3.1 W Into 3Ω From a 5-V Supply at THD = 10% (Typ) Low Supply Current: 4 mA Typ at 5 V Shutdown Current: 0.01 μA Typ Fast Startup With Minimal Pop Only Three External Components – Improved PSRR (-80 dB) and Wide Supply Voltage (2.5 V to 5.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com 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. ORDERING INFORMATION PACKAGED DEVICES (1) TA SMALL OUTLINE (DRB) MSOP PowerPAD™ (DGN) EVALUATION MODULES –40°C to 85°C TPA6211A1DRB TPA6211A1DGN TPA6211A1EVM (1) The DGN and DRB are available taped and reeled.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com RECOMMENDED OPERATION CONDITIONS MIN VDD Supply voltage VIH High-level input voltage SHUTDOWN VIL Low-level input voltage SHUTDOWN TA Operating free-air temperature TYP MAX 2.5 5.5 1.55 UNIT V V 0.5 V 85 °C –40 ELECTRICAL CHARACTERISTICS TA = 25°C PARAMETER TEST CONDITIONS VOS Output offset voltage (measured differentially) VI = 0 V differential, Gain = 1 V/V, VDD = 5.5 V PSRR Power supply rejection ratio VDD = 2.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com OPERATING CHARACTERISTICS TA = 25°C, Gain = 1 V/V PARAMETER TEST CONDITIONS THD + N= 1%, f = 1 kHz, RL = 3 Ω PO Output power THD + N= 1%, f = 1 kHz, RL = 4 Ω THD + N= 1%, f = 1 kHz, RL = 8 Ω MIN THD+N Total harmonic distortion plus noise f = 1 kHz, RL = 4 Ω f = 1 kHz, RL = 8 Ω MAX VDD = 5 V 2.45 VDD = 3.6 V 1.22 VDD = 2.5 V 0.49 VDD = 5 V 2.22 VDD = 3.6 V 1.1 VDD = 2.5 V 0.47 VDD = 5 V 1.36 VDD = 3.6 V 0.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com POWER DISSIPATION vs OUTPUT POWER POWER DISSIPATION vs OUTPUT POWER 1.4 0.8 VDD = 3.6 V 0.6 PD - Power Dissiaption - W PD - Power Dissiaption - W 1.2 4Ω 0.5 0.4 8Ω 0.3 0.2 0 0 0.3 0.6 0.9 1.2 PO - Output Power - W 1.5 8Ω 0.6 0.4 0 0.3 0.6 0.9 1.2 PO - Output Power - W 1.5 1.8 Figure 3. Figure 4.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 10 5 10 RL = 8 Ω, C(BYPASS) = 0 to 1 µF, Gain = 1 V/V THD+N - Total Harmonic Distortion + Noise - % THD+N - Total Harmonic Distortion + Noise - % 20 2 1 2.5 V 0.5 3.6 V 0.2 5V 0.1 0.05 0.02 0.01 10m 20m 2 1 0.5 1W 0.2 0.1 2W 0.05 0.02 0.01 0.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 10 VDD = 2.5 V, RL = 4 Ω,, C(BYPASS) = 0 to 1 µF, Gain = 1 V/V, CI = 2 µF 5 2 1 THD+N - Total Harmonic Distortion + Noise - % THD+N - Total Harmonic Distortion + Noise - % 10 TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 0.5 0.4 W 0.2 0.28 W 0.1 0.05 0.02 0.01 0.005 0.002 0.001 50 100 200 500 1k 2k f - Frequency - Hz 5k 1 0.5 0.25 W 0.6 W 0.2 0.1 W 0.1 0.05 0.02 0.01 0.005 0.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com SUPPLY VOLTAGE REJECTION RATIO vs FREQUENCY -20 -30 -40 -50 VDD = 2.5 V -60 VDD = 3.6 V -70 -80 VDD = 5 V -90 -100 20 +0 k SVR − Supply Voltage Rejection Ratio − dB k SVR - Supply Voltage Rejection Ratio - dB -10 +0 RL = 4 Ω,, C(BYPASS) = 0.47 µF, Gain = 5 V/V, CI = 2 µF, Inputs ac Grounded −10 −20 50 100 200 500 1k 2k 5k -40 -50 -60 -70 -80 -90 20 50 100 200 500 1k 2k 5k 10k 20k Figure 15. Figure 16.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com GSM POWER SUPPLY REJECTION vs TIME VDD Voltage − V C1 Frequency 217 Hz C1 − Duty 20% C1 Pk−Pk 500 mV RL = 8 Ω CI = 2.2 µF VOUT C(BYPASS) = 0.47 µF 2 ms/div Ch1 100 mV/div Ch4 10 mV/div t − Time − ms Figure 19. 0 −50 VO − Output Voltage − dBV −100 VDD Shown in Figure 19, RL = 8 Ω, CI = 2.2 µF, Inputs Grounded −100 −150 VDD − Supply Voltage − dBV GSM POWER SUPPLY REJECTION vs FREQUENCY −120 −140 −160 −180 0 C(BYPASS) = 0.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com COMMON MODE REJECTION RATIO vs FREQUENCY 0 RL = 4 Ω,, VIC = 200 mV Vp-p, Gain = 1 V/V, -20 -30 -40 VDD = 2.5 V -50 -60 -70 VDD = 5 V -80 -90 -100 20 50 100 200 500 1k 2k 5k -20 -30 -40 -50 VDD = 2.5 V -60 -80 0 0.5 1 1.5 2 2.5 3 3.5 Figure 21. Figure 22.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com SUPPLY CURRENT vs SUPPLY VOLTAGE 5 10 VDD = 5 V TA = 125°C 4.5 VDD = 5 V 1 4 I DD - Supply Current - mA I DD - Supply Current - mA SUPPLY CURRENT vs SHUTDOWN VOLTAGE TA = 25°C 3.5 3 TA = -40°C 2.5 2 1.5 1 VDD = 3.6 V 0.1 VDD = 2.5 V 0.01 0.001 0.0001 0.5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0.00001 0 VDD - Supply Voltage - V 1 2 3 4 5 Voltage on SHUTDOWN Terminal - V Figure 25. Figure 26.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com APPLICATION INFORMATION FULLY DIFFERENTIAL AMPLIFIER The TPA6211A1 is a fully differential amplifier with differential inputs and outputs. The fully differential amplifier consists of a differential amplifier and a common- mode amplifier. The differential amplifier ensures that the amplifier outputs a differential voltage that is equal to the differential input times the gain.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com VDD 6 CI − 4 IN− + RI 3 IN+ CI _ VO+ 5 VO− 8 + 40 kΩ 1 SHUTDOWN C(BYPASS)(1) (1) Cs 40 kΩ RI To Battery GND 7 Bias Circuitry 100 kΩ 2 C(BYPASS) is optional Figure 29.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com CF CF VDD 6 Ra − Ca Ra RI 4 IN− RI 3 IN+ CI + _ SHUTDOWN C(BYPASS)(1) VO+ 5 VO− 8 + 40 kΩ Ca (1) Cs 40 kΩ CI To Battery 1 GND 7 Bias Circuitry 100 kΩ 2 C(BYPASS) is optional Figure 31. Differential Input Application Schematic With Input Bandpass Filter Selecting Components Resistors (RI) The input resistor (RI) can be selected to set the gain of the amplifier according to equation 1.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com directly affects the bass (low frequency) performance of the circuit. Consider the example where RI is 10 kΩ and the specification calls for a flat bass response down to 100 Hz. Equation 2 is reconfigured as Equation 3. 1 C + I 2p R f c I (3) In this example, CI is 0.16 μF, so the likely choice ranges from 0.22 μF to 0.47 μF. Ceramic capacitors are preferred because they are the best choice in preventing leakage current.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com lengths between the amplifier and the speaker. For higher frequency transients, spikes, or digital hash on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically 0.1 μF to 1 μF, placed as close as possible to the device VDD lead works best.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com For example, a 68-μF capacitor with an 8-Ω speaker would attenuate low frequencies below 293 Hz. The BTL configuration cancels the dc offsets, which eliminates the need for the blocking capacitors. Low-frequency performance is then limited only by the input network and speaker response. Cost and PCB space are also minimized by eliminating the bulky coupling capacitor. VDD VO(PP) CC RL subtracting the RMS value of the output voltage from VDD.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 Table 2 employs Equation 15 to calculate efficiencies for four different output power levels. Note that the efficiency of the amplifier is quite low for lower power levels and rises sharply as power to the load is increased resulting in a nearly flat internal power dissipation over the normal operating range. Note that the internal dissipation at full output power is less than in the half power range.
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TPA6211A1 SLOS367D – AUGUST 2003 – REVISED JUNE 2011 www.ti.com PCB LAYOUT Use the following land pattern for board layout with the 8-pin QFN (DRB) package. Note that the solder paste should use a hatch pattern to fill solder paste at 50% to ensure that there is not too much solder paste under the package. 0,7 mm 0,33 mm plugged vias (5 places) 1,4 mm 0,38 mm 0,65 mm 1,95 mm Solder Mask: 1,4 mm x 1,85 mm centered in package Make solder paste a hatch pattern to fill 50% 3,3 mm Figure 36.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com (4) 18-Oct-2013 There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPA6211A1DGNR MSOPPower PAD DGN 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPA6211A1DGNR MSOPPower PAD DGN 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPA6211A1DRBR SON DRB 8 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPA6211A1DGNR MSOP-PowerPAD DGN 8 2500 358.0 335.0 35.0 TPA6211A1DGNR MSOP-PowerPAD DGN 8 2500 364.0 364.0 27.0 TPA6211A1DRBR SON DRB 8 3000 367.0 367.0 35.0 TPA6211A1DRBR SON DRB 8 3000 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.