TS4998IQT STMicroelectronics, TS4998IQT Datasheet - Page 16

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TS4998IQT

Manufacturer Part Number
TS4998IQT
Description
IC AMP AUDIO PWR 1W STER 16QFN
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TS4998IQT

Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
1W x 2 @ 8 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
Depop, Differential Inputs, Standby, Thermal Protection
Mounting Type
Surface Mount
Package / Case
16-QFN
Operational Class
Class-AB
Audio Amplifier Output Configuration
2-Channel Stereo
Output Power (typ)
1x2@8OhmW
Audio Amplifier Function
Speaker
Total Harmonic Distortion
0.5@8Ohm@700mW%
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Unity Gain Bandwidth Product (typ)
1.5MHz
Rail/rail I/o Type
No
Power Supply Rejection Ratio
80dB
Single Supply Voltage (min)
2.7V
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
16
Package Type
QFN EP
For Use With
497-8259 - BOARD EVAL BASED ON TS4998
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6842-2
Electrical characteristics
16/33
Figure 44. SNR vs. power supply voltage
Figure 46. Differential DC output voltage vs.
Figure 48. Differential DC output voltage vs.
1000 Vcc = 5V
110
108
106
104
102
100
1E-3
1000 Vcc = 2.7V
0.01
1E-3
0.01
98
96
94
92
90
100
100
0.1
0.1
10
10
2.5
1
1
0.0
0
G = +6dB
Tamb = 25
G = +6dB
Tamb = 25
common mode input voltage
common mode input voltage
3.0
0.5
1
°
°
Common Mode Input Voltage (V)
C
Common Mode Input Voltage (V)
C
3.5
Supply Voltage (V)
1.0
Unweighted filter (20Hz to 20kHz)
F = 1kHz
G = +6dB, RL = 8
THD + N < 0.5%
Tamb = 25
2
4.0
1.5
°
C
3
4.5
Ω
2.0
5.0
4
2.5
5.5
5
Figure 45. SNR vs. power supply voltage
Figure 47. Differential DC output voltage vs.
Figure 49. Current consumption vs. power
110
108
106
104
102
100
1000 Vcc = 3.3V
1E-3
0.01
98
96
94
92
90
100
0.1
10
2.5
8
7
6
5
4
3
2
1
0
1
0.0
0
No load
Tamb = 25
G = +6dB
Tamb = 25
common mode input voltage
supply voltage
3.0
0.5
1
°
°
Common Mode Input Voltage (V)
C
C
Power Supply Voltage (V)
1.0
3.5
Supply Voltage (V)
2
Unweighted filter (20Hz to 20kHz)
F = 1kHz
G = +6dB, RL = 16
THD + N < 0.5%
Tamb = 25
1.5
4.0
3
One channel active
°
Both channels active
C
2.0
4.5
4
Ω
2.5
5.0
5
TS4998
3.0
5.5

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