TS489IST STMicroelectronics, TS489IST Datasheet - Page 27

IC AMP AUDIO PWR .13W STER 8MSOP

TS489IST

Manufacturer Part Number
TS489IST
Description
IC AMP AUDIO PWR .13W STER 8MSOP
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TS489IST

Output Type
Headphones, 2-Channel (Stereo)
Max Output Power X Channels @ Load
130mW x 2 @ 16 Ohm
Voltage - Supply
2.2 V ~ 5.5 V
Features
Depop, Short-Circuit Protection, Standby
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Operational Class
Class-AB
Audio Amplifier Output Configuration
2-Channel Stereo
Output Power (typ)
130x2@16OhmW
Audio Amplifier Function
Headphone
Input Offset Voltage
20@5VmV
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Supply Current (max)
2.7@5VmA
Power Supply Requirement
Single
Power Dissipation
580mW
Unity Gain Bandwidth Product (typ)
1.1MHz
Rail/rail I/o Type
No
Power Supply Rejection Ratio
70dB
Single Supply Voltage (min)
2.2V
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
8
Package Type
MSOP
For Use With
497-6363 - BOARD DEMO FOR TS489
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-6032-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TS489IST
Manufacturer:
FAIRCHILD
Quantity:
100
TS488-TS489
Connecting the headphones
Note:
With the values above, the result is F
In this case, τ
This value is sufficient with regard to the previous formula, thus we can state that the pop is
imperceptible.
Generally headphones are connected using jack connectors. To prevent a pop in the
headphones when plugging in the jack, a pulldown resistor should be connected in parallel
with each headphone output. This allows the capacitors C
headphones are not plugged in.
Pulldown resistors with a value of 1 kΩ are high enough to be a negligible load, and low
enough to charge the capacitors C
The pop&click reduction circuitry works properly only when both channels have the same
value for the external components C
in
= R
in
x C
in
=6.6ms.
out
in
CL
, C
in less than one second.
=25Hz.
out
, R
load
and R
pulldown
out
to be charged even when the
.
Application information
27/32

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