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Details, datasheet, quote on part number:TPA6112A2DGQ
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| Part: | TPA6112A2DGQ |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Audio/Power Amplifiers |
| Description: | ti TPA6112A2, Stereo, Differential Input, Stereo Headphone Audio Amplifier |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPA6112A2DGQ datasheet File size : 339 kB |
| Request For quote: | Find where to buy TPA6112A2DGQ
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Datasheet text preview:
TPA6112A2 150-mW STEREO AUDIO POWER AMPLIFIER
SLOS342 DECEMBER 2000
D D D D D D D
150 mW Stereo Output Differential Inputs PC Power Supply Compatible Fully Specified for 3.3 V and 5 V Operation Operation to 2.5 V Pop Reduction Circuitry Internal Mid-Rail Generation Thermal and Short-Circuit Protection Surface-Mount Packaging PowerPADTM MSOP
DGQ PACKAGE (TOP VIEW)
VO 1 IN1 IN1+ BYPASS GND
1 2 3 4 5
10 9 8 7 6
VDD VO 2 IN2 IN2+ SHUTDOWN
description
The TPA6112A2 is a stereo audio power amplifier with differential inputs packaged in a 10-pin PowerPADTM MSOP package capable of delivering 150 mW of continuous RMS power per channel into 16- loads. Amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation for settings of 1 to 10. THD+N when driving an 16- load from 5 V is 0.03% at 1 kHz, and less than 1% across the audio band of 20 Hz to 20 kHz. For 32- loads, the THD+N is reduced to less than 0.02% at 1 kHz, and is less than 1% across the audio band of 20 Hz to 20 kHz. For 10-k loads, the THD+N performance is 0.005% at 1 kHz, and less than 0.5% across the audio band of 20 Hz to 20 kHz.
typical application circuit
325 k Ri
325 k
VDD 10
VDD/2 Ri Right In (Differential) + Ci Rf 4 C (B) Ri + Left In (Differential) Ci Rf Ci Ri 8 IN 2 Rf 7 IN 2+ + VO2 9 5 C (C) BYPASS Ci Ri 3 IN 1+ 2 IN 1 + VO1 1 C (C)
VDD C(S)
Bias Control
SHUTDOWN 6
From Shutdown Control Circuit
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. PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2000, Texas Instruments Incorporated
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TPA6112A2 150-mW STEREO AUDIO POWER AMPLIFIER
SLOS342 DECEMBER 2000
AVAILABLE OPTIONS TA PACKAGED DEVICE MSOP MSOP Symbolization
40°C to 85°C TPA6112A2DGQ TI APD The DGQ package is available in left-ended tape and reel only (e.g., TPA6112A2DGQR).
Terminal Functions
TERMINAL NAME BYPASS GND IN1 IN1+ IN2 IN2+ SHUTDOWN VDD VO1 VO2 NO. 4 5 2 3 8 7 6 10 1 9 I/O I I I I I I I I O O DESCRIPTION Tap to voltage divider for internal mid-supply bias supply. Connect to a 0.1 µF to 1 µF low ESR capacitor for best performance. GND is the ground connection. IN1 is the negative input for channel 1. IN1+ is the positive input for channel 1. IN2 is the negative input for channel 2. IN2+ is the positive input for channel 2. Puts the device in a low quiescent current mode when held high. VDD is the supply voltage terminal. VO1 is the audio output for channel 1. VO2 is the audio output for channel 2.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VDD + 0.3 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . internally limited Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
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 under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. DISSIPATION RATING TABLE PACKAGE DGQ TA 25°C POWER RATING 2.14 W§ DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING
17.1 mW/°C 1.37 W 1.11 W § Please see the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report (literature number SLMA002), for more information on the PowerPADTM package. The thermal data was measured on a PCB layout based on the information in the section entitled Texas Instruments Recommended Board for PowerPAD on page 33 of the before mentioned document.
recommended operating conditions
MIN Supply voltage, VDD Operating free-air temperature, TA High-level input voltage, VIH, (SHUTDOWN) Low-level input voltage, VIL, (SHUTDOWN) 2.5 40 60% x VDD 25% x VDD MAX 5.5 85 UNIT V °C V V
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPA6112A2 150-mW STEREO AUDIO POWER AMPLIFIER
SLOS342 DECEMBER 2000
dc electrical characteristics at TA = 25°C, VDD = 3.3 V
PARAMETER VIO PSRR IDD IDD(SD) Zi Input offset voltage Power supply rejection ratio Supply current Supply current in SHUTDOWN mode Input impedance VDD = 3.2 V to 3.4 V 83 1.5 10 >1 3 50 TEST CONDITIONS MIN TYP MAX 5 UNIT mV dB mA µA M
ac operating characteristics, VDD = 3.3 V, TA = 25°C, RL = 16
PARAMETER PO THD+N BOM Output power (each channel) Total harmonic distortion + noise Maximum output power BW Phase margin Supply ripple rejection ratio Channel/channel output separation SNR Vn Signal-to-noise ratio Noise output voltage TEST CONDITIONS THD 0.1%, PO = 40 mW, G = 10, Open loop f = 1 kHz f = 1 kHz PO = 50 mW, AV = 1 AV = 1 f = 1 kHz 20 20 kHz THD 20 96° 71 89 100 11 dB dB dB µV(rms) kHz MAX UNIT mW
dc electrical characteristics at TA = 25°C, VDD = 5 V
PARAMETER VIO PSRR IDD IDD(SD) Zi Input offset voltage Power supply rejection ratio Supply current Supply current in SHUTDOWN mode Input impedance VDD = 4.9 V to 5.1 V 76 1.5 60 >1 3 100 TEST CONDITIONS MIN TYP MAX 5 UNIT mV dB mA µA M
ac operating characteristics, VDD = 5 V, TA = 25°C, RL = 16
PARAMETER PO THD+N BOM Output power (each channel) Total harmonic distortion + noise Maximum output power BW Phase margin Supply ripple rejection ratio Channel/channel output separation SNR Vn Signal-to-noise ratio Noise output voltage TEST CONDITIONS THD 0.1%, f = 1 kHz PO = 100 mW, 20 20 kHz G = 10, THD 20 96° 61 90 100 11.7 dB dB dB µV(rms) kHz MAX UNIT mW
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· DALLAS, TEXAS 75265
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