TS487IQT STMicroelectronics, TS487IQT Datasheet - Page 25

• Manufacturer Part Number: TS487IQT
• Description: IC AMP AUDIO PWR .108W STER 8DFN
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS487IQT

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 108mW x 2 @ 16 Ohm
• Voltage - Supply: 2 V ~ 5.5 V
• Features: Depop, Short-Circuit Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 0.108x2@16OhmW
• Audio Amplifier Function: Headphone
• Input Offset Voltage: 1(Typ)@5VmV
• Input Bias Current: 200nA
• Total Harmonic Distortion: 0.3@16Ohm@90mW%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Supply Current (max): 2.5@5VmA
• Power Supply Requirement: Single
• Power Dissipation: 1.79W
• Unity Gain Bandwidth Product (typ): 1.1MHz
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 58dB
• Single Supply Voltage (min): 2V
• 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: 8
• Package Type: DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Fig. 93: Crosstalk vs Frequency
Fig. 95: Crosstalk vs Frequency
Fig. 97: Signal to Noise Ratio vs Power Supply
Voltage with Weighted Filter Type A
80
60
40
20
80
60
40
20
100
0
0
98
96
94
92
90
88
86
84
82
80
20
20
2.0
Av = -4
Cb = 1 F
THD+N < 0.4%
Tamb = 25 C
ChB to ChA
ChB to ChA
2.5
100
100
ChA to ChB
ChA to ChB
Power Supply Voltage (V)
RL=16
3.0
Frequency (Hz)
Frequency (Hz)
RL=600
3.5
1000
1000
4.0
RL=32
RL=16
Vcc=2V
Pout=7.5mW
Av=-4
Cb = 1 F
Bw < 125kHz
Tamb=25 C
RL=32
Vcc=2V
Pout=6mW
Av=-4
Cb = 1 F
Bw < 125kHz
Tamb=25 C
4.5
10000
10000
20k
20k
5.0
Fig. 94: Crosstalk vs Frequency
Fig. 96: Signal to Noise Ratio vs Power Supply
Voltage with Unweighted Filter (20Hz to 20kHz)
Fig. 98: PSRR vs Power Supply Voltage
-10
-20
-30
-40
-50
-60
80
60
40
20
0
0
100
20
98
96
94
92
90
88
86
84
82
80
2.0
Vcc = 5V, 3.3V & 2.5V
100
Av = -4
Cb = 1 F
THD+N < 0.4%
Tamb = 25 C
Vripple = 200mVpp
Av = -4
Input = grounded
Cb = 1 F
RL >= 16
Tamb = 25 C
2.5
100
ChB to ChA
Power Supply Voltage (V)
RL=16
3.0
1000
Frequency (Hz)
Frequency (Hz)
ChA to ChB
RL=600
3.5
1000
Vcc = 2V
10000
4.0
TS486-TS487
RL=32
RL=32
Vcc=5V
Pout=55mW
Av=-4
Cb = 1 F
Bw < 125kHz
Tamb=25 C
10000
4.5
100000
20k
5.0
25/31