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TS4990EIJTST,STN/a10000avai1.2W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE
TS4990IQTSTMN/a18000avai1.2W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE
TS4990ISTST,STN/a1964000avai1.2W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE


TS4990IST ,1.2W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODETS49901.2W Audio Power Amplifier withActive-Low Standby Mode

TS4990EIJT-TS4990IQT-TS4990IST
1.2W AUDIO POWER AMPLIFIER WITH ACTIVE LOW STANDBY MODE
Operating from VCC = 2.2V to 5.5V 1.2W Output power @ Vcc=5V, THD=1%, f=1kHz, with 8Ω Load Ultra-low consumption in standby mode
(10nA)
62dB PSRR @ 217Hz in grounded mode Near-zero POP & CLICK Ultra-low distortion (0.1%) Unity gain stable Available in a 9-bump Flip-Chip, MiniSO8
and DFN8 packages
Description

The TS4990 has been designed for demanding
audio applications such as mobile phones and to
minimize the number of external components.
This Audio Power Amplifier is capable of
delivering 1.2W of continuous RMS Output Power
into an 8Ω load @ 5V.
An externally-controlled standby mode reduces
the supply current to less than 10nA. It also
includes internal thermal shutdown protection.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
Pin Connections (top view)
Applications
Mobile phones (cellular / cordless) Laptop / notebook computers PDAs Portable audio devices
Order Codes
Lead free Flip-Chip part number
TS4990

1.2W Audio Power Amplifier with
Active-Low Standby Mode
TS4990 Absolute Maximum Ratings
Figure 1: Typical application schematic Absolute Maximum Ratings
Table 2:Operating Conditions
Table 1:Key parameters and their absolute maximum ratings
All voltage values are measured with respect to the ground pin. The magnitude of input signal must never exceed VCC + 0.3V / GND - 0.3V Device is protected in case of over temperature by a thermal shutdown active @ 150°C. This thermal resistance is reached with a 100mm2 copper heatsink surface. When mounted on a 4-layer PCB.
Electrical Characteristics TS4990
2 Electrical Characteristics
Table 3:Electrical characteristics when VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise
specified)
Standby mode is activated when Vstdby is tied to Gnd All PSRR data limits are guaranteed by production sampling tests
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon Vcc.
TS4990 Electrical Characteristics
Table 4:Electrical Characteristics when VCC = +3.3V, GND = 0V, Tamb = 25°C (unless otherwise
specified)
Standby mode is activated when Vstdby is tied to Gnd All PSRR data limits are guaranteed by production sampling tests
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon Vcc.
Electrical Characteristics TS4990
Table 5:Electrical characteristics when VCC = 2.6V, GND = 0V, Tamb = 25°C (unless otherwise
specified)
Standby mode is activated when Vstdby is tied to Gnd All PSRR data limits are guaranteed by production sampling tests
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon Vcc.
Table 6:Components description
TS4990 Electrical Characteristics
Figure 2: Open Loop Frequency Response
Figure 3: Open Loop Frequency Response
Figure 4: Open Loop Frequency Response
Figure 5: Open Loop Frequency Response
Figure 6: Open Loop Frequency Response
Figure 7: Open Loop Frequency Response
Electrical Characteristics TS4990
Figure 8: Power Supply Rejection Ratio
(PSRR) vs Power supply
Figure 9: Power Supply Rejection Ratio
(PSRR) vs Power supply
Figure 10: Power Supply Rejection Ratio
(PSRR) vs Power supply
Figure 11: Power Supply Rejection Ratio
(PSRR) vs Power supply
Figure 12: Power Supply Rejection Ratio
(PSRR) vs Power supply
Figure 13: Power Supply Rejection Ratio
(PSRR) vs Power supply
TS4990 Electrical Characteristics
Figure 14: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 15: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 16: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 17: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 18: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 19: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Electrical Characteristics TS4990
Figure 20: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 21: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage

Figure 22: Output Power vs Power Supply
Voltage
Figure 23: Power Supply Rejection Ratio
(PSRR) vs DC Output Voltage
Figure 24: Power Supply Rejection Ratio
(PSRR) at F=217Hz vs Bypass
Capacitor
Figure 25: Output Power vs Power Supply
Voltage
TS4990 Electrical Characteristics
Figure 26: Output Power vs Power Supply
Voltage
Figure 27: Output Power vs Load Resistor
Figure 28: Output Power vs Load Resistor

Figure 29: Output Power vs Power Supply
Voltage
Figure 30: Output Power vs Load Resistor
Figure 31: Power Dissipation vs Pout

Electrical Characteristics TS4990
Figure 32: Power Dissipation vs Pout
Figure 33: Power Derating Curves

Figure 34: Clipping Voltage vs Power Supply
Voltage and Load Resistor
Figure 35: Power Dissipation vs Pout
Figure 36: Clipping Voltage vs Power Supply
Voltage and Load Resistor
Figure 37: Current Consumption vs Power
Supply Voltage
TS4990 Electrical Characteristics
Figure 38: Current Consumption vs Standby
Voltage @ Vcc = 5V
Figure 39: Current Consumption vs Standby
Voltage @ Vcc = 2.6V
Figure 40: THD + N vs Output Power
Figure 41: Current Consumption vs Standby
Voltage @ Vcc = 3.3V
Figure 42: Current Consumption vs Standby
Voltage @ Vcc = 2.2V
Figure 43: THD + N vs Output Power
Electrical Characteristics TS4990
Figure 44: THD + N vs Output Power
Figure 45: THD + N vs Output Power
Figure 46: THD + N vs Output Power
Figure 47: THD + N vs Output Power
Figure 48: THD + N vs Output Power
Figure 49: THD + N vs Output Power
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