TS4997IQT STMicroelectronics, TS4997IQT Datasheet
TS4997IQT
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TS4997IQT Summary of contents
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Features ■ Operating range from V = 2.7V to 5.5V CC ■ 1W output power per channel @ V THD+N=1%, R =8Ω L ■ Ultra low standby consumption: 10nA typ. ■ 80dB PSRR @ 217Hz with grounded inputs ■ High ...
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Contents Contents 1 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 ...
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TS4997 1 Typical application schematics Figure 1 shows a typical application for the TS4997 with a gain of +6dB set by the input resistors. Figure 1. Typical application schematics Optional Diff. input L- Cin1 P1 330nF Cin2 P2 Diff. input ...
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Absolute maximum ratings 2 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Supply voltage CC V Input voltage i T Operating free air temperature range oper T Storage temperature stg T Maximum junction temperature j R Thermal resistance ...
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TS4997 3 Electrical characteristics Table +5V, GND = 0V Symbol Supply current input signal, no load, left and right channel active (1) Standby current I STBY No input signal, V STBYL Output ...
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Electrical characteristics Table +3.3V, GND = 0V Symbol Supply current input signal, no load, left and right channel active (1) Standby current I STBY No input signal, V STBYL Output offset voltage ...
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TS4997 Table +2.7V, GND = 0V Symbol Supply current input signal, no load, left and right channel active (1) Standby current I STBY No input signal, V STBYL Output offset voltage V ...
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Electrical characteristics Table 7. Index of graphics THD+N vs. output power THD+N vs. frequency PSRR vs. frequency PSRR vs. common mode input voltage CMRR vs. frequency CMRR vs. common mode input voltage Crosstalk vs. frequency SNR vs. power supply voltage ...
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TS4997 Figure 2. THD+N vs. output power 10 Ω +6dB F = 1kHz μ < 125kHz 1 ° Tamb = 25 C Vcc=2.7V 0.1 0.01 1E-3 0.01 Output power (W) ...
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Electrical characteristics Figure 8. THD+N vs. output power 10 Ω +6dB F = 10kHz μ < 125kHz 1 ° Tamb = 25 C Vcc=2.7V 0.1 0.01 1E-3 0.01 Output power ...
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TS4997 Figure 14. THD+N vs. frequency 10 Ω +6dB μ < 125kHz ° Tamb = 0.1 0.01 100 Frequency (Hz) Figure 16. THD+N vs. frequency 10 Ω ...
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Electrical characteristics Figure 20. PSRR vs. frequency 0 Vcc = 5V -10 Vripple = 200mVpp G = +6dB -20 μ μ Cin = 4.7 F -30 Inputs Grounded ° Tamb = 25 C -40 -50 3D ...
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TS4997 Figure 26. PSRR vs. frequency 0 Vcc = 2.7V -10 Vripple = 200mVpp G = +6dB -20 μ μ Cin = 4.7 F -30 Inputs Grounded ° Tamb = 25 C -40 3D MEDIUM -50 ...
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Electrical characteristics Figure 32. CMRR vs. frequency 0 Vcc = 3.3V ≥ Ω - +6dB Vic = 200mVpp -20 μ μ Cin = 4.7 F Tamb = 25°C -30 3D LOW 3D ...
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TS4997 Figure 38. Crosstalk vs. frequency 0 Ω - +6dB -20 μ μ Cin = -30 3D Effect OFF ° Tamb = 25 C -40 -50 Vcc=5V -60 Vcc=3.3V ...
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Electrical characteristics Figure 44. SNR vs. power supply voltage 110 108 106 3D OFF 104 102 3D MEDIUM 100 3D LOW Unweighted filter (20Hz to 20kHz 1kHz 3D HIGH ...
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TS4997 Figure 50. Current consumption vs. standby voltage Both channels active One channel active Standby Voltage (V) Figure 52. Current consumption vs. standby voltage ...
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Electrical characteristics Figure 56. Frequency response 14 μ Ω Cin=4.7 F, Rin=12k Ω Cin=680nF, Rin=12k μ Ω Cin=4.7 F, Rin=24k Ω Cin=330nF, Rin=24k 100 1000 ...
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TS4997 Figure 62. Power dissipation vs. output power Figure 63. Power derating curves 400 350 300 250 200 150 Ω RL=16 100 100 150 200 250 Output Power (mW) Table 8. Output noise, T amb Conditions ...
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Application information 4 Application information 4.1 General description The TS4997 integrates two monolithic full-differential input/output power amplifiers with two selectable standby pins dedicated for each channel. The gain of each channel is set by external input resistors. The TS4997 also ...
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TS4997 Due to the tolerance on the internal 50kΩ feedback resistors, the differential gain will be in the range (no tolerance on R The difference of resistance between input resistors of each channel have direct influence on the PSRR, CMRR ...
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Application information 4.5 Low frequency response The input coupling capacitors block the DC part of the input signal at the amplifier inputs. In the low frequency region, C pass filter with a -3dB cut-off frequency. expressed in Ω and C ...
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TS4997 Table 9. 3D effect settings 3D effect level OFF LOW MEDIUM HIGH 4.7 Power dissipation and efficiency Assumptions: ● Load voltage and current are sinusoidal (V ● Supply voltage is a pure DC source (V The output voltage is: ...
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Application information and the maximum value is obtained when: and its value is: Equation 5 Note: This maximum value is only dependent on the power supply voltage and load values. The efficiency is the ratio between the output power and ...
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TS4997 T is calculated as follows: amb Equation 7 Therefore, the maximum allowable value for 150 - 1.266=42.4°C amb If a 4-layer PCB with vias is used, R value for T in this ...
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Application information The C capacitor has particular influence on the THD+N at high frequencies (above 7kHz) S and an indirect influence on power supply disturbances. With a value for C expect THD+N performance similar to that shown in the datasheet. ...
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TS4997 4.11 Shutdown time When the standby command is activated (both channels put into standby mode), the time required to put the two output stages of each channel in high impedance and the internal circuitry in shutdown mode is a ...
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Application information Figure 67. Typical single-ended input application Diff. input L- Cin1 P1 330nF Cin2 330nF Diff. input R- Cin3 P2 330nF Cin4 330nF The component calculations remain the same for the gain. In single-ended input configuration, the formula is: ...
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TS4997 Figure 68. PSRR measurement Cin1 4.7uF Cin2 4.7uF Cin3 4.7uF Cin4 4.7uF Principles of operation ● The DC voltage supply (V ● The AC sinusoidal ripple voltage (V ● No bypass capacitor C The PSRR value for each frequency ...
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... JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. Figure 69. QFN16 package Figure 70 ...
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TS4997 Figure 71. QFN16 4x4mm * The Exposed Pad is connected to Ground. * The Exposed Pad is connected to Ground. Figure 72. Footprint soldering pad QFN16 package information Dimensions Millimeters (mm) Ref Min A 0 0.18 ...
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... Ordering information 6 Ordering information Table 10. Order codes Part number TS4997IQT 32/34 Temperature range Package -40°C, +85°C QFN16 4x4mm TS4997 Packaging Marking Tape & reel Q997 ...
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TS4997 7 Revision history Date 10-Jan-2007 20-Feb-2007 Revision 1 Preliminary data. 2 First release. Revision history Changes 33/34 ...
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