TS4990IST STMicroelectronics, TS4990IST Datasheet - Page 11

• Manufacturer Part Number: TS4990IST
• Description: IC AMP AUDIO PWR 1.2W MONO 8MSOP
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4990IST

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1.2W x 1 @ 8 Ohm
• Voltage - Supply: 2.2 V ~ 5.5 V
• Features: Depop, Differential Inputs, Standby, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• For Use With: 497-6383 - BOARD DEMO FOR TS4990
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4451-2

TS4990
Figure 20. PSRR vs. DC output voltage
Figure 22. Output power vs. power supply
Figure 24. PSRR at F = 217 Hz vs.
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-10
-20
-30
-40
-50
-60
-70
-30
-40
-50
-60
-70
-80
0
-2.5 -2.0 -1.5 -1.0 -0.5
0.1
RL = 4 Ω
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
Av=2
Vcc:
2.6V
3.3V
5V
2.5
voltage
bypass capacitor
Differential DC Output Voltage (V)
3.0
Vcc = 2.6V
Vripple = 200mVpp
RL = 8 Ω
Cb = 1 μ F
AV = 2
Tamb = 25 ° C
Bypass Capacitor Cb ( F)
Av=5
Vcc:
2.6V
3.3V
5V
THD+N=10%
3.5
Vcc (V)
0.0
4.0
0.5
1
4.5
THD+N=1%
1.0
1.5
Tamb=25 ° C
5.0
Av=10
Vcc:
2.6V
3.3V
5V
2.0
5.5
2.5
Figure 21. PSRR vs. DC output voltage
Figure 23. PSRR vs. DC output voltage
Figure 25. Output power vs. power supply
-10
-20
-30
-40
-50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-10
-20
-30
-40
-50
-60
0
-2.5 -2.0 -1.5 -1.0 -0.5
0
-2.5 -2.0 -1.5 -1.0 -0.5
RL = 8 Ω
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
2.5
voltage
Differential DC Output Voltage (V)
Differential DC Output Voltage (V)
3.0
Vcc = 2.6V
Vripple = 200mVpp
RL = 8 Ω
Cb = 1 μ F
AV = 10
Tamb = 25 ° C
Vcc = 2.6V
Vripple = 200mVpp
RL = 8 Ω
Cb = 1 μ F
AV = 5
Tamb = 25 ° C
THD+N=10%
3.5
Electrical characteristics
Vcc (V)
0.0
0.0
4.0
0.5
0.5
THD+N=1%
4.5
1.0
1.0
1.5
1.5
5.0
2.0
2.0
5.5
2.5
2.5
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