TS4994IST STMicroelectronics, TS4994IST Datasheet
TS4994IST
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TS4994IST Summary of contents
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... Pin connections (top view) TS4994IQT - DFN10 STBY STBY STBY MODE STBY MODE N/C N GND GND BYPASS BYPASS TS4994IST - MiniSO-8 STBY STBY Vcc Vcc IN- IN GND GND IN+ IN+ BYPASS BYPASS regardless of the input common CC Packing Marking K994 Tape & reel K994 1/35 www.st.com 35 ...
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Contents Contents 1 Application component information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings and ...
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TS4994 1 Application component information Components C Supply bypass capacitor that provides power supply filtering Bypass capacitor that provides half supply filtering. b Feedback resistor that sets the closed loop gain in conjunction with R R feed A ...
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Application component information Figure 2. Typical application, MiniSO-8 version Diff. input - Cin1 220nF Cin2 GND 220nF Diff. Input + Optional 4/35 Rfeed1 20k Rin1 2 Vin- 20k Rin2 3 Vin+ 20k 4 Bypass + Cb 1u Stdby GND 1 ...
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TS4994 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol (1) V Supply voltage CC (2) V Input voltage i T Operating free air temperature range oper T Storage temperature stg T Maximum junction temperature j ...
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Electrical characteristics 3 Electrical characteristics Table 3. Electrical characteristics for V specified) Symbol Supply current input signal, no load Standby current I No input signal, V STBY STBY No input signal, V STBY Differential output offset voltage ...
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TS4994 Table 4. Electrical characteristics for V correlation measurements at 2.6V and 5V), GND = 0V, T specified) Symbol I Supply current no input signal, no load CC Standby current I No input signal, V STBY STBY No input signal, ...
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Electrical characteristics Table 5. Electrical characteristics for V specified) Symbol Supply current input signal, no load Standby current I No input signal, V STBY STBY No input signal, V STBY Differential output offset voltage ...
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TS4994 Figure 3. Current consumption vs. power supply voltage 4.0 No load Tamb=25 ° C 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 Power Supply Voltage (V) Figure 5. Current consumption vs. power supply voltage 3.5 3.0 ...
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Electrical characteristics Figure 9. Power dissipation vs. output power 0.3 RL=8 Ω 0.2 0.1 RL=16 Ω 0.0 0.0 0.1 0.2 Output Power (W) Figure 11. Output power vs. power supply voltage 1 μ 1kHz ...
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TS4994 Figure 15. Power derating curves 0.6 Nominal Value 0.4 AMR Value 0.2 0 Ambiant Temperature ( C) Figure 17. Open loop gain vs. frequency 60 Gain 40 20 Phase 0 Vcc = 3.3V - ...
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Electrical characteristics Figure 21. Closed loop gain vs. frequency 10 Gain 0 -10 -20 Vcc = 2.6V - Ω + 500pF Tamb = 25 ° C -40 0 100 Frequency (kHz) Figure ...
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TS4994 Figure 27. PSRR vs. frequency 0 -10 Vcc = 2.6V -20 Vripple = 200mVpp Inputs = Grounded - 2.5, Cin = 4.7 μ F -40 RL ≥ 8 Ω -50 Tamb = 25 ° C Cb=0.47 μ ...
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Electrical characteristics Figure 33. PSRR vs. common mode input voltage 0 Vcc = 2.5V Vripple = 200mVpp Inputs Grounded - 217Hz -40 RL ≥ 8 Ω Tamb = 25 ° C -60 Cb=0 -80 -100 ...
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TS4994 Figure 39. CMRR vs. frequency 0 Vcc = 2.6V -10 Vic = 200mVpp - 2.5, Cin = 470 μ ≥ 8 Ω -30 Tamb = 25 ° C -40 Cb=1 μ F -50 Cb=0.47 μ ...
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Electrical characteristics Figure 45. THD+N vs. output power Ω 1kHz Vcc=2. μ < 125kHz Vcc=3.3V Tamb = 25 ° C Vcc=5V 0.1 0.01 1E-3 0.01 ...
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TS4994 Figure 51. THD+N vs. output power Ω Vcc=2. 20Hz Vcc=3. μ < 125kHz Tamb = 25 ° C 0.1 Vcc=5V 0.01 1E-3 1E-3 0.01 ...
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Electrical characteristics Figure 57. THD+N vs. output power Ω Vcc = F=20kHz < 125kHz Tamb = 25 ° C F=1kHz 0.1 F=20Hz 0.01 1E-3 0.01 Output Power ...
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TS4994 Figure 63. THD+N vs. frequency Ω 7 μ < 125kHz Vcc=2.6V, Po=225mW 1 Tamb = 25 ° C 0.1 0.01 20 100 1000 Frequency (Hz) Figure 65. THD+N ...
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Electrical characteristics Figure 69. Startup time vs. bypass capacitor 20 Tamb=25 ° C Vcc= Vcc=2.6V 0 0.0 0.4 0.8 1.2 Bypass Capacitor 20/35 Vcc=3.3V 1.6 2.0 TS4994 ...
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TS4994 4 Application information 4.1 Differential configuration principle The TS4994 is a monolithic full-differential input/output power amplifier. The TS4994 also includes a common mode feedback loop that controls the output bias value to average for any ...
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Application information the values following formula: with The result of the calculation must be in the range: If the result of the V used. Example: With V higher than 2.5V - 0.9V = 1.6V, so input coupling ...
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TS4994 must introduce a mismatch factor (R performance. ● From 200Hz to 5kHz, the C compared with R this range, we can reach the PSRR performance of the TS4994 itself. ● From 5kHz to 20kHz, the C and the C ...
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Application information The three following graphs show PSRR versus frequency and versus bypass capacitor C worst-case conditions ( Figure 70. PSRR vs. frequency (worst case conditions) 0 -10 Vcc = 5V, Vripple = 200mVpp - Cin = ...
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TS4994 The two following graphs show typical applications of the TS4994 with a random selection of Δ four R/R values with a 0.1% tolerance. Figure 73. PSRR vs. frequency with random choice condition 0 -10 Vcc = 5V, Vripple = ...
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Application information Figure 75. CMR vs. frequency (worst case conditions) 0 Vcc = 5V Vic = 200mVpp - Cin = 470 μ F Δ R/R = 0.1%, RL ≥ 8 Ω -20 Tamb = 25 ° C ...
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TS4994 and Therefore, the average current delivered by the supply voltage is: Equation 1 The power delivered by the supply voltage is: Therefore, the power dissipated by each amplifier is: Equation 2 and the maximum value is obtained when: and ...
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Application information To calculate the maximum ambient temperature T ● The value of the power supply voltage, V ● The value of the load resistor, R ● The R value for the package type thja Example 5V, R ...
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TS4994 4.10 Shutdown time When the standby command is set, the time required to put the two output stages in high impedance and the internal circuitry in shutdown mode is a few microseconds. Note: In shutdown mode, the Bypass pin ...
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Application information The component calculations remain the same, except for the gain. In single-ended input configuration, the formula is: 4.13 Demoboard A demoboard for the TS4994 is available designed for the TS4994 in the DFN10 package. However, we ...
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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. Package mechanical data ...
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Package mechanical data ackage 5.1 DFN10 p Ref 32/35 Dimensions Millimeters Min. Typ. Max. 0.80 0.90 1.00 0.02 0.05 0.70 0.20 0.18 0.23 0.30 3.00 2.21 2.26 2.31 3.00 ...
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TS4994 5.2 MiniSO-8 package Ref Dimensions Millimeters Min. Typ. Max. 1.1 0.05 0.10 0.15 0.78 0.86 0.94 0.25 0.33 0.40 0.13 0.18 0.23 2.90 3.00 3.10 4.75 4.90 ...
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Revision history 6 Revision history Date 1-Sep-2003 1-Oct-2004 2-Jan-2005 2-Apr-2005 15-Nov- 2005 12-Dec-2006 34/35 Revision 1 Initial release. 2 Curves updated in the document. 4 Update mechanical data on flip-chip package. 4 Remove data on flip-chip package. 5 Mechanical data ...
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... TS4994 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...