TS4890IQT STMicroelectronics, TS4890IQT Datasheet - Page 27

• 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

Application n°2 : 20Hz to 20kHz bandwidth and
20dB gain BTL power amplifier.
Components :
C7
C9
C10
C12
S1, S2, S6, S7
S8
P1
D1*
U1
R1
R4
R6
R7*
R8
C5
C6
C7
C9
C10
C12
S1, S2, S6, S7
S8
P1
D1*
U1
Designator
Designator
100nF
Short Circuit
TS4890ID or TS4890IS
110k / 0.125W
22k / 0.125W
Short Cicuit
10k / 0.125W
470nF
100µF
100nF
Short Circuit
TS4890ID or TS4890IS
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
3 pts connector 2.54mm
pitch
PCB Phono Jack
Led 3mm
(Vcc-Vf_led)/If_led
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
3 pts connector 2.54mm
pitch
PCB Phono Jack
Led 3mm
Part Type
Part Type
Application n°3 : 50Hz to 10kHz bandwidth and
10dB gain BTL power amplifier.
Components :
Application n°4 : Differential inputs BTL power
amplifier.
In this configuration, we need to place these
components : R1, R4, R5, R6, R7, C4, C5, C12.
We have also : R4 = R5, R1 = R6, C4 = C5.
The gain of the amplifier is:
For Vcc=5V, a 20Hz to 20kHz bandwidth and 20dB
gain BTL power amplifier you could follow the bill
of material below.
R1
R2
R4
R6
R7*
R8
C2
C5
C6
C7
C9
C10
C12
S1, S2, S6, S7
S8
P1
D1*
U1
Designator
G
V D I FF
33k / 0.125W
Short Circuit
22k / 0.125W
Short Cicuit
(Vcc-Vf_led)/If_led
10k / 0.125W
470pF
150nF
100µF
100nF
Short Circuit
Short Circuit
1µF
2mm insulated Plug
10.16mm pitch
3 pts connector 2.54mm
pitch
PCB Phono Jack
Led 3mm
TS4890ID or TS4890IS
= 2
R1
------- -
R4
Part Type
TS4890
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