TS4990IJT STMicroelectronics, TS4990IJT Datasheet - Page 17

• Manufacturer Part Number: TS4990IJT
• Manufacturer: STMicroelectronics

Specifications of TS4990IJT

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 1.2x1@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.2@8Ohm@1W%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Supply Current (max): 6@5VmA
• Power Supply Requirement: Single
• Unity Gain Bandwidth Product (typ): 1.5MHz
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 64dB
• Single Supply Voltage (min): 2.2V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 9
• Package Type: Flip-Chip
• Lead Free Status / Rohs Status: Not Compliant

TS4990
Figure 56. Signal to noise ratio vs. power
Figure 58. Signal to noise ratio vs. power
110
105
100
100
95
90
85
80
95
90
85
80
75
70
Av = 2
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
Av = 10
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
2.5
2.5
supply with a weighted filter
supply with a weighted filter
RL=16 Ω
RL=16 Ω
3.0
3.0
Power Supply Voltage (V)
Power Supply Voltage (V)
RL=4 Ω
RL=4 Ω
3.5
3.5
4.0
4.0
RL=8 Ω
RL=8 Ω
4.5
4.5
5.0
5.0
Figure 57. Output noise voltage
Figure 59. Output noise voltage device in
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
45
40
35
30
25
20
15
10
2
2
Vcc=2.2V to 5.5V
Cb=1 μ F
RL=8 Ω
Tamb=25 ° C
Vcc=2.2V to 5.5V
Cb=1 μ F
RL=8 Ω
Tamb=25 ° C
Unweighted Filter
device ON
Standby
4
4
Unweighted Filter
Closed Loop Gain
Closed Loop Gain
Electrical characteristics
6
6
A Weighted Filter
A Weighted Filter
8
8
10
10
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