TS4998IQT STMicroelectronics, TS4998IQT Datasheet - Page 17

• 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 50. Current consumption vs. standby
Figure 52. Current consumption vs. standby
Figure 54. Frequency response
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
0.0
0
20
voltage
voltage
0.5
Cin=4.7
Cin=680nF, Rin=12k
Cin=4.7
Cin=330nF, Rin=24k
1
100
μ
μ
F, Rin=12k
F, Rin=24k
Standby Voltage (V)
Standby Voltage (V)
1.0
Frequency (Hz)
2
One channel active
Both channels active
Ω
Ω
Ω
1000
Ω
1.5
One channel active
Both channels active
3
Vcc = 5V
Po = 700mW
ZL = 8
Tamb = 25
2.0
Vcc = 5V
No load
Tamb = 25
Vcc = 2.7V
No load
Tamb = 25
4
Ω
+ 500pF
10000
°
C
2.5
°
°
C
C
20k
5
Figure 51. Current consumption vs. standby
Figure 53. Standby current vs. power supply
Figure 55. Frequency response
14
13
12
11
10
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
9
8
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
0.0
20
0
No load
Tamb = 25
0.5
voltage
voltage
Cin=4.7
Cin=680nF, Rin=12k
Cin=4.7
Cin=330nF, Rin=24k
1
100
°
C
1.0
Power Supply Voltage (V)
μ
μ
F, Rin=12k
F, Rin=24k
Standby Voltage (V)
Frequency (Hz)
2
1.5
Electrical characteristics
One channel active
Ω
Ω
Ω
1000
Ω
3
2.0
Both channels active
Vcc = 3.3V
Po = 300mW
ZL = 8
Tamb = 25
2.5
4
Vcc = 3.3V
No load
Tamb = 25
Ω
+ 500pF
10000
°
C
3.0
5
°
17/33
C
20k