TS4990IST STMicroelectronics, TS4990IST Datasheet - Page 16

IC AMP AUDIO PWR 1.2W MONO 8MSOP

TS4990IST

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

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
Electrical characteristics
Figure 50. THD + N vs. output power
10
RL = 16 Ω
F = 20kHz
Av = 2
Cb = 1 μ F
Vcc=2.2V
1
BW < 125kHz
Tamb = 25 ° C
Vcc=2.6V
0.1
Vcc=3.3V
0.01
1E-3
0.01
Output Power (W)
Figure 52. SNR vs. power supply with
unweighted filter (20Hz to 20kHz)
110
RL=16 Ω
105
100
95
RL=4 Ω
90
Av = 2
Cb = 1 μ F
85
THD+N < 0.7%
Tamb = 25 ° C
80
2.5
3.0
3.5
Power Supply Voltage (V)
Figure 54. THD + N vs. frequency
RL=16 Ω
Av=2
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
0.1
Vcc=5V, Po=0.55W
Vcc=2.2V, Po=100mW
0.01
20
100
1000
Frequency (Hz)
16/32
Figure 51. THD + N vs. frequency
0.1
Vcc=5V
0.01
20
0.1
1
Figure 53. THD + N vs. frequency
1
RL=8 Ω
0.1
4.0
4.5
5.0
20
Figure 55. SNR vs. power supply with
95
90
85
80
75
70
10000
20k
RL=8 Ω
Av=2
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
Vcc=5V, Po=1W
Vcc=2.2V, Po=130mW
100
1000
Frequency (Hz)
RL=4 Ω
Av=2
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
Vcc=5V, Po=1.3W
Vcc=2.2V, Po=150mW
100
1000
Frequency (Hz)
unweighted filter (20Hz to 20kHz)
RL=16 Ω
RL=8 Ω
RL=4 Ω
Av = 10
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
2.5
3.0
3.5
4.0
4.5
Power Supply Voltage (V)
TS4990
10000
20k
10000
20k
5.0

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