TS4961TIQT STMicroelectronics, TS4961TIQT Datasheet - Page 19

• Manufacturer Part Number: TS4961TIQT
• Description: IC AMP AUDIO PWR 1.95W D 16QFN
• Manufacturer: STMicroelectronics
• Type: Class Dr

Specifications of TS4961TIQT

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1.95W x 1 @ 4 Ohm
• Voltage - Supply: 2.4 V ~ 4.3 V
• Features: Depop, Differential Inputs, Standby
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• For Use With: 497-8932 - BOARD EVAL FOR TS4961T
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8388-2

TS4961T
3
3.1
Electrical characteristics curves
Audio amplifier section
The graphs included in this section use the following abbreviations:
●
●
●
Figure 1.
Figure 2.
R
Filter = LC output filter (1 µF+30 µH for 4 Ω and 0.5 µF+6 0µH for 8 Ω).
All measurements done with C
is removed.
L
+ 15 µH or 30 µH = pure resistor + very low series resistance inductor.
GND
Test diagram for audio amplifier measurements
Test diagram for audio amplifier PSRR measurements
Cin
Cin
Cin
4.7uF
Cin
4.7uF
50kHz low pass
Rin
150k
Rin
150k
5th order
Rin
150k
Rin
150k
filter
In+
In-
CSA
100nF
In+
In-
1uF
CSA
GND
GND
Audio Amplifier
of the TS4961T
Audio Amplifier
of the TS4961T
GND
Vcc
GND
s1
20Hz to 20kHz
Reference
= 1 µF and C
Out+
Out-
Out+
Out-
GND
RMS Selective Measurement
Bandwidth=1% of Fmeas
Vcc
Audio Measurement
Bandwidth < 30kHz
15uH or 30uH
s2
15uH or 30uH
LC Filter
LC Filter
= 100 nF except for PSRR where C
or
or
Electrical characteristics curves
4 or 8 Ohms
4 or 8 Ohms
RL
RL
50kHz low pass
50kHz low pass
5th order
5th order
filter
filter
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s1