TS4998IQT STMicroelectronics, TS4998IQT Datasheet - Page 15

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

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

TS4998
Figure 38. Crosstalk vs. frequency
Figure 40. SNR vs. power supply voltage
Figure 42. SNR vs. power supply voltage
110
108
106
104
102
100
110
108
106
104
102
100
-100
-110
-120
98
96
94
92
90
98
96
94
92
90
-10
-20
-30
-40
-50
-60
-70
-80
-90
2.5
2.5
0
RL = 8
G = +6dB
Cin = 1
Tamb = 25
3.0
3.0
Ω
μ
F, Cb = 1
100
°
C
3.5
3.5
Supply Voltage (V)
Supply Voltage (V)
μ
F
Frequency (Hz)
Vcc=5V
Vcc=3.3V
Vcc=2.7V
4.0
4.0
1000
A - Weighted filter
F = 1kHz
G = +6dB ,RL = 16
THD + N < 0.5%
Tamb = 25
4.5
4.5
A - Weighted filter
F = 1kHz
G = +6dB, RL = 4
THD + N < 0.5%
Tamb = 25
5.0
5.0
°
C
°
C
10000
Ω
Ω
5.5
5.5
Figure 39. Crosstalk vs. frequency
Figure 41. SNR vs. power supply voltage
Figure 43. SNR vs. power supply voltage
110
108
106
104
102
100
110
108
106
104
102
100
-100
-110
-120
98
96
94
92
90
98
96
94
92
90
-10
-20
-30
-40
-50
-60
-70
-80
-90
2.5
2.5
0
RL = 16
G = +6dB
Cin = 1
Tamb = 25
3.0
3.0
μ
Ω
F, Cb = 1
100
°
C
3.5
3.5
Supply Voltage (V)
Supply Voltage (V)
μ
F
Frequency (Hz)
Unweighted filter (20Hz to 20kHz)
F = 1kHz
G = +6dB, RL = 4
THD + N < 0.5%
Tamb = 25
Vcc=5V
Vcc=3.3V
Vcc=2.7V
Electrical characteristics
4.0
4.0
1000
°
C
4.5
4.5
A - weighted filter
F = 1kHz
G = +6dB ,RL = 8
THD + N < 0.5%
Tamb = 25
Ω
5.0
5.0
°
C
10000
Ω
15/33
5.5
5.5