IC AMP AUDIO PWR .13W STER 8MSOP

TS489IST

Manufacturer Part NumberTS489IST
DescriptionIC AMP AUDIO PWR .13W STER 8MSOP
ManufacturerSTMicroelectronics
TypeClass AB
TS489IST datasheet
 


Specifications of TS489IST

Output TypeHeadphones, 2-Channel (Stereo)Max Output Power X Channels @ Load130mW x 2 @ 16 Ohm
Voltage - Supply2.2 V ~ 5.5 VFeaturesDepop, Short-Circuit Protection, Standby
Mounting TypeSurface MountPackage / Case8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Operational ClassClass-ABAudio Amplifier Output Configuration2-Channel Stereo
Output Power (typ)130x2@16OhmWAudio Amplifier FunctionHeadphone
Input Offset Voltage20@5VmVSingle Supply Voltage (typ)3/5V
Dual Supply Voltage (typ)Not RequiredVSupply Current (max)2.7@5VmA
Power Supply RequirementSinglePower Dissipation580mW
Unity Gain Bandwidth Product (typ)1.1MHzRail/rail I/o TypeNo
Power Supply Rejection Ratio70dBSingle Supply Voltage (min)2.2V
Single Supply Voltage (max)5.5VDual Supply Voltage (min)Not RequiredV
Dual Supply Voltage (max)Not RequiredVOperating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingSurface Mount
Pin Count8Package TypeMSOP
For Use With497-6363 - BOARD DEMO FOR TS489Lead Free Status / RoHS StatusLead free / RoHS Compliant
Other names497-6032-2  
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Application information
Figure 79. Lower cut-off frequency vs.
input capacitor
10k
1k
100
10
1
Note:
In case F
1st order high-pass filter on the input and the 1st order high-pass filter on the
output create a 2nd order high-pass filter in the audio signal path with an
attenuation 6dB on F
4.4
Higher cut-off frequency
In the high frequency region, you can limit the bandwidth by adding a capacitor C
parallel with R
feed
that F
is highest frequency to be amplified (with a 3dB attenuation), the maximum value of
CH
C
is:
feed
Figure 81. Higher cut-off frequency vs. feedback capacitor
24/32
Figure 80. Lower cut-off frequency vs.
Ω
Rin=10k
Ω
Rin=20k
Ω
Rin=50k
Ω
Rin=100k
10
100
1000
Cin (nF)
is kept the same for calculation, It must be taken in account that the
CL
and a roll-off 40db
CL
. It forms a low-pass filter with a -3dB cut-off frequency F
F
=
--------------------------------------------------
CH
R
feed
100k
10k
Ω
Rfeed=40k
1k
Ω
Rfeed=80k
100
0.01
0.1
Cfeed
TS488-TS489
output capacitor
10k
Ω
R
=16
L
R
=32
L
1k
100
10
0.1
1
10
μ
Cout (
F)
decade.
. Assuming
CH
1
C
feed
Ω
Rfeed=10k
Ω
Rfeed=20k
1
10
100
μ
(
F
)
Ω
Ω
R
=600
L
100
1000
in
feed