TS4994IST STMicroelectronics, TS4994IST Datasheet - Page 19

• Manufacturer Part Number: TS4994IST
• Description: IC AMP AUDIO PWR 1W MONO 8MSOP
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4994IST

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, Differential Inputs, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• For Use With: 497-6396 - BOARD EVAL FOR LV TS4984IQT497-6395 - BOARD EVAL FOR LP DIFF TS4994IQT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4452-2

TS4994
Figure 63. THD+N vs. frequency
Figure 65. THD+N vs. frequency
Figure 67. SNR vs. power supply voltage with
1E-3
0.01
0.01
110
105
100
0.1
0.1
10
10
95
90
85
80
1
1
2.5
20
20
RL = 8 Ω
Av = 7.5
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
RL = 16 Ω
Av = 1
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
Av = 2.5
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
unweighted filter
3.0
100
100
Power Supply Voltage (V)
Vcc=2.6V, Po=225mW
Vcc=2.6V, Po=155mW
Frequency (Hz)
RL=16 Ω
Frequency (Hz)
3.5
1000
1000
Vcc=5V, Po=850mW
Vcc=5V, Po=600mW
4.0
RL=8 Ω
4.5
10000
10000
20k
20k
5.0
Figure 64. THD+N vs. frequency
Figure 66. THD+N vs. frequency
Figure 68. SNR vs. power supply voltage with
1E-3
0.01
0.01
110
105
100
0.1
0.1
10
10
95
90
85
80
1
1
2.5
20
20
RL = 8 Ω
Av = 7.5
Cb = 0
Bw < 125kHz
Tamb = 25 ° C
RL = 16 Ω
Av = 7.5
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
Av = 2.5
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
A-weighted filter
RL=16 Ω
3.0
100
100
Power Supply Voltage (V)
Vcc=2.6V, Po=155mW
Vcc=2.6V, Po=225mW
Frequency (Hz)
Frequency (Hz)
3.5
Electrical characteristics
1000
1000
Vcc=5V, Po=850mW
Vcc=5V, Po=600mW
4.0
RL=8 Ω
4.5
10000
10000
20k
20k
5.0
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