TS482_05 STMICROELECTRONICS [STMicroelectronics], TS482_05 Datasheet

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TS482_05

Manufacturer Part Number
TS482_05
Description
100mW Stereo Headphone Amplifier
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
Description
The TS482 is a dual audio power amplifier able to
drive a 16 or 32
voltages.
It is delivering up to 100mW per channel (into 16
loads) of continuous average power with 0.1%
THD+N from a 5V power supply.
The unity gain stable TS482 can be configured by
external gain-setting resistors.
Applications
Order Codes
November 2005
TS482ID/IDT
TS482IST
TS482IQT
Operating from Vcc=2V to 5.5V
100mW into 16 at 5V
11.5mW into 16 at 2V
Switch ON/OFF click reduction circuitry
High power supply rejection ratio: 85dB at 5V
High signal-to-noise ratio: 110dB(A) at 5V
High crosstalk immunity: 100dB (F=1kHz)
Rail-to-rail input and output
Unity-gain stable
Available in SO-8, MiniSO-8 & DFN8
Stereo headphone amplifier
Optical storage
Computer motherboard
PDA, organizers & notebook computers
High-end TV, set-top box, DVD players
Sound cards
38mW into 16 at 3.3V
Part Number
stereo headset down to low
Temperature Range
-40, +85°C
100mW Stereo Headphone Amplifier
miniSO-8
Package
DFN8
SO-8
Right In
Right In
Left In
Left In
Cin1
Cin1
2.2µF
2.2µF
2.2µF
2.2µF
Cin2
Cin2
Typical application schematic
TS482ID, TS482IDT - SO-8
O
V
V
O
V
V
+
+
+
+
OUT
OUT
Tube or Tape & Reel
IN+ (1)
UT (1)
IN- (1)
IN+ (1)
UT (1)
IN- (1)
V
V
V
V
G
TS482IST - MiniSO-8
GND
GND
G
IN + (1)
IN + (1)
IN - (1)
IN - (1)
TS482IQT - DFN8
ND
ND
1µF
1µF
Cs
Cs
Rin2
Rin2
Rin1
Rin1
(1)
(1)
3.9k
3.9k
3.9k
3.9k
Tape & Reel
+
+
1µF
1µF
1
1
3
3
4
4
2
2
Packing
+
+
Cb
Cb
1
2
3
4
1
2
3
4
Vcc
Vcc
Rpol
Rpol
100k
100k
2
2
3
3
5
5
6
6
100k
100k
Rpol
Rpol
Rfeed1
Rfeed1
Rfeed2
Rfeed2
Vcc
Vcc
3.9k
3.9k
3.9k
3.9k
+
+
+
+
-
-
-
-
TS482
TS482
4
4
8
8
8
7
6
5
8
7
6
5
8
8
7
7
6
6
5
5
1
1
7
7
V
V
O
V
V
V
O
V
IN+ (2)
CC
IN- (2)
UT (2)
CC
IN- (2)
IN+ (2)
UT (2)
Vcc
Vcc
OUT
OUT
V
V
V
V
+
+
+
+
220µF
220µF
220µF
220µF
Cout1
Cout1
Cout2
Cout2
IN - (2)
IN - (2)
IN + (2)
IN + (2)
(2)
(2)
TS482
+
+
+
+
Marking
RL=32Ohms
RL=32Ohms
RL=32Ohms
RL=32Ohms
482I
www.st.com
Rev 2
1/26
26

Related parts for TS482_05

TS482_05 Summary of contents

Page 1

Operating from Vcc=2V to 5.5V 100mW into 38mW into 16 at 3.3V 11.5mW into Switch ON/OFF click reduction circuitry High power supply rejection ratio: 85dB at 5V High signal-to-noise ratio: 110dB( High ...

Page 2

Absolute Maximum Ratings 1 Absolute Maximum Ratings Table 1. Key parameters and their absolute maximum ratings Symbol V Supply voltage CC V Input Voltage i T Operating Free Air Temperature Range oper T Storage Temperature stg T Maximum Junction Temperature ...

Page 3

TS482 2 Electrical Characteristics Table 3. Electrical characteristics when V otherwise specified) Symbol Supply Current input signal, no load V Input Offset Voltage ( Input Bias Current (V IB Output Power THD+N = 0.1% Max, ...

Page 4

Electrical Characteristics Table 4. Electrical characteristics when V otherwise specified) Symbol Supply Current input signal, no load V Input Offset Voltage ( Input Bias Current (V IB Output Power THD+N = 0.1% Max ...

Page 5

Electrical Characteristics Table 5. Electrical characteristics when V otherwise specified) Symbol Supply Current input signal, no load V Input Offset Voltage ( Input Bias Current (V IB Output Power THD+N = 0.1% Max ...

Page 6

Electrical Characteristics Table 6. Electrical characteristics when V otherwise specified) Symbol Parameter Supply Current input signal, no load V Input Offset Voltage ( Input Bias Current (V IB Output Power THD+N = 0.1% Max, F ...

Page 7

Electrical Characteristics Table 7. Components description Components Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This Rin resistor also forms a high pass filter with Cin ( Rin ...

Page 8

Electrical Characteristics Table 8. Index of graphics Open loop gain and phase vs. frequency response Phase and Gain Margin vs. Power Supply Voltage Output power vs. power supply voltage Output power vs. load resistance Power dissipation vs. output power Power ...

Page 9

Electrical Characteristics Figure 1. Open loop gain and phase vs. frequency response 80 Gain 60 40 Phase 20 0 -20 -40 0 100 Frequency (kHz) Figure 3. Open loop gain and phase vs. frequency response 80 Gain 60 ...

Page 10

Electrical Characteristics Figure 7. Open loop gain and phase vs. frequency response 80 Gain Phase 0 -20 -40 0 100 Frequency (kHz) Figure 9. Open loop gain and phase vs. frequency response 80 Gain 60 ...

Page 11

Electrical Characteristics Figure 13. Phase margin vs. power supply voltage Figure 14. Gain margin vs. power supply voltage CL 500pF 20 10 RL=16 Tamb= 2.0 2.5 3.0 3.5 Power Supply Voltage (V) Figure ...

Page 12

Electrical Characteristics Figure 19. Phase margin vs. power supply voltage Figure 20. Gain margin vs. power supply voltage CL=0pF CL=300pF RL=5k Tamb= 2.0 2.5 3.0 3.5 Power Supply Voltage (V) Figure ...

Page 13

Electrical Characteristics Figure 25. Output power vs. load resistance 70 THD+N= THD+N=0. Load Resistance (ohm) Figure 27. Output power vs. load resistance 25 20 THD+N= THD+N=0.1% ...

Page 14

Electrical Characteristics Figure 31. Power dissipation vs. output power Figure 32. Power derating vs. ambient 25 Vcc=2V F=1kHz THD+N< RL= Output Power (mW) Figure 33. Current consumption vs. power supply ...

Page 15

Electrical Characteristics Figure 37. THD + N vs. output power 20Hz < 125kHz Tamb = 25 C Vcc=2V 0.1 Vcc=2.6V 0.01 Vcc=3.3V 1E Output Power (mW) Figure ...

Page 16

Electrical Characteristics Figure 43. THD + N vs. output power 600 F = 1kHz Vcc= < 125kHz Vcc=2.6V Tamb = 25 C Vcc=3.3V 0.1 Vcc=5V 0.01 1E-3 0.01 0.1 Output Voltage (Vrms) ...

Page 17

Electrical Characteristics Figure 49. THD + N vs. output power Vcc= 20kHz Vcc=2.6V BW < 125kHz 1 Tamb = 25 C Vcc=3.3V Vcc=5V 0.1 0.01 0.01 0.1 Output Voltage (Vrms) Figure ...

Page 18

Electrical Characteristics Figure 55. Signal to noise ratio vs. power supply with unweighted filter (20Hz to 20kHz) 110 108 THD+N < 0.2% Tamb = 25 C 106 104 102 RL=32 100 RL= ...

Page 19

Electrical Characteristics Figure 61. Crosstalk vs. frequency 100 100 1000 Frequency (Hz) Figure 63. Crosstalk vs. frequency 100 80 ChB to ChA & ChA to Chb 100 1000 Frequency (Hz) Figure ...

Page 20

Electrical Characteristics Figure 67. Lower cut off frequency vs. input capacitor 1000 Rin=3.9k Rin=10k 100 10 1 0.2 0.4 0.6 0.8 1.0 1.2 Input Capacitor Cin ( F) Figure 69. Best case distribution of THD + ...

Page 21

Electrical Characteristics Figure 73. Worst case distribution of THD + 0.012 0.018 0.024 0.030 THD+N (%) Figure 75. Best case distribution of THD + ...

Page 22

Electrical Characteristics Figure 79. Worst case distribution of THD + 0.012 0.018 0.024 0.030 THD+N (%) 22/26 Vcc=2V RL=32 Av=-1 Pout=6.5mW 20Hz F 20kHz Tamb=25 C 0.036 0.042 ...

Page 23

Package Mechanical Data 3 Package Mechanical Data In order to meet environmental requirements, ST offers these devices in ECOPACK These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on ...

Page 24

Package Mechanical Data 3.2 MiniSO-8 Package 24/26 TS482 ...

Page 25

Package Mechanical Data 3.3 DFN8 Package 25/26 TS482 ...

Page 26

Revision history 4 Revision history Date Revision June 2003 Nov. 2005 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or ...

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