TS4890IQT STMicroelectronics, TS4890IQT Datasheet - Page 21

• Manufacturer Part Number: TS4890IQT
• Description: IC AMP AUDIO PWR 1W MONO AB 8DFN
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4890IQT

• 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, Standby, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• For Use With: 497-6363 - BOARD DEMO FOR TS489
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Fig. 91 : Signal to Noise Ratio vs Power Supply
with Weighted Filter type A
Fig. 93 : Frequency Response Gain vs Cin, &
Cfeed
Fig. 95 : Current Consumption vs Standby
Voltage @ Vcc = 5V
110
100
-10
-15
-20
-25
10
-5
90
80
70
60
5
0
7
6
5
4
3
2
1
0
10
0.0
2.2
0.5
2.5
Cin = 82nF
1.0
RL=16
3.0
1.5
100
Cin = 22nF
Cin = 470nF
Frequency (Hz)
2.0
3.5
Vcc (V)
Vstandby (V)
2.5
RL=8
Cfeed = 330pF
3.0
Cfeed = 680pF
1000
4.0
Rin = Rfeed = 22k
Tamb = 25 C
Cfeed = 2.2nF
3.5
RL=4
Gv = 2
Cb = Cin = 1 F
THD+N < 0.4%
Tamb = 25 C
Vcc = 5V
Tamb = 25 C
4.0
4.5
4.5
10000
5.0
5.0
Fig. 92 : Signal to Noise Ratio vs Power Supply
with Weighted Filter Type A
Fig. 94 : Current Consumption vs Power
Supply Voltage (no load)
Fig. 96 : Current Consumption vs Standby
Voltage @ Vcc = 3.3V
100
90
80
70
60
2.2
7
6
5
4
3
2
1
0
6
5
4
3
2
1
0
0.0
0
Vstandby = Vcc
Tamb = 25 C
2.5
0.5
RL=16
1
3.0
1.0
2
Vstandby (V)
RL=4
3.5
Vcc (V)
1.5
Vcc (V)
2.0
3
4.0
RL=8
Gv = 10
Cb = Cin = 1 F
THD+N < 0.4%
Tamb = 25 C
2.5
Vcc = 3.3V
Tamb = 25 C
4.5
4
3.0
TS4890
5.0
5
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