TS489IST STMicroelectronics, TS489IST Datasheet - Page 26

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

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

Application information
4.8
Note:
4.9
26/32
Wake-up time
When the standby is released to put the device ON, the bypass capacitor C
immediately. As C
properly until the C
20ms (pop precaution) is called the wake-up time or t
characteristics table with C
If C
can be read directly from
Figure 83. Typical wake-up time vs. bypass capacitance
It is assumed that the C
wake-up time is shorter.
POP performance
Pop performance is closely related to the size of the input capacitor C
dependent on the lower cut-off frequency and PSRR values requested.
In order to reach low pop, C
rule, the equivalent input constant time (R
τ
Example calculation:
In the typical application schematic R
(-3db attenuation) is given by the following formula:
in
= R
b
has a value other than 1µF, t
in
x C
in
< 0.0067 (s)
b
b
is directly linked to the bias of the amplifier, the bias will not work
voltage is correct. The time to reach this voltage plus a time delay of
400
350
300
250
200
150
100
50
b
0
voltage is equal to 0V. If the C
Figure
0
b
in
T
= 1µF.
AMB
must be charged to
t
WU
=25°C
83.
WU
1
=
F
can be calculated by applying the following formulas or
in
CL
C
--------------------- -
0.03125
is 20kΩ and C
b
⋅
=
in
2.5
------------------------------------- -
2π
C
2
in
⋅
+
) should be less then 6.7ms:
Cb (
20
R
1
in
V
μ
⋅
F)
CC
[ms;μF ]
in
C
WU
3
/2 in less than 20ms. To follow this
in
is 330nF. The lower cut-off frequency
b
; it is specified in the electrical
voltage is not equal to 0V, the
4
in
. The size of C
5
b
is charged
TS488-TS489
in
is