TS4998IQT STMicroelectronics, TS4998IQT Datasheet - Page 3

• 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
1
Typical application schematics
Figure 1
resistors.
Figure 1.
Table 1.
Components
Diff. input L-
Diff. input L+
Diff. input R-
Diff. input R+
shows a typical application for the TS4998 with a gain of +6dB set by the input
R
C
C
C
P1
P2
P3
P4
IN
IN
S
B
Optional
Typical application schematics
External component descriptions
Cin1
330nF
Cin2
330nF
Cin3
330nF
Cin4
330nF
Rin1
25k
Rin2
25k
Rin3
25k
Rin4
25k
Input resistors that set the closed loop gain in conjunction with a fixed internal
feedback resistor (Gain = R
Input coupling capacitors that block the DC voltage at the amplifier input
terminal. Thanks to common mode feedback, these input capacitors are
optional. However, if they are added, they form with R
filter with -3dB cut-off frequency (f
Supply bypass capacitors that provides power supply filtering.
Bypass pin capacitor that provides half supply filtering.
1uF
Cb
14
1
2
4
3
U1
TS4998
LIN-
LIN+
RIN-
RIN+
Bypass
RIGHT
LEFT
GND
BIAS
GND
Functional description
feed
/R
IN
cut-off
STBY
, where R
-
+
-
+
= 1 / (2 x π x R
TS4998 - QFN16
Typical application schematics
VCC
Vcc
feed
LOUT-
LOUT+
ROUT-
ROUT+
= 50kΩ).
Cs
1uF
12
11
9
10
IN
IN
a 1st order high pass
x C
Left Speaker
Right Speaker
IN
8 Ohms
8 Ohms
)).
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