TS4997IQT STMicroelectronics, TS4997IQT Datasheet - Page 29

• Manufacturer Part Number: TS4997IQT
• Description: IC AMP AUDIO 1W STER AB 16QFN
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4997IQT

• 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: 3D, Depop, Differential Inputs, Standby, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5995-2

TS4997
Figure 68. PSRR measurement
Principles of operation
●
●
●
The PSRR value for each frequency is calculated as:
RMS is an rms selective measurement.
The DC voltage supply (V
The AC sinusoidal ripple voltage (V
No bypass capacitor C
Cin1
4.7uF
Cin2
4.7uF
Cin3
4.7uF
Cin4
4.7uF
Rin1
Rin2
Rin3
Rin4
1uF
Cb
14
1
2
4
3
S
PSRR
TS4997 - QFN16
is used
LI N-
LI N+
RIN-
RIN+
CC
Bypass
) is fixed
RIGHT
LEFT
=
GND
20
BIAS
ripple
×
GND
Log
EFFECT
) is fixed
3D
--------------------------------- -
RMS
RMS
(
(
Vripple
Output
STBY
-
+
-
+
Vcc
)
)
(
dB
LOUT-
LOUT+
ROUT-
ROUT+
)
Application information
12
11
9
10
Vripple
Vcc
RL
8Ohms
RL
8Ohms
29/34