SGS Thomson Microelectronics TS487IDT, TS487ID, TS486IST, TS486IDT, TS486ID Datasheet

1/31

■OPERATING FROM Vcc=2V to 5.5V

■STANDBY MODE ACTIVE LO W (TS486) or

HIGH (TS487)

■OUTPUT POWER: 102mW @5V, 38mW

@3.3V into 16Ω with 0.1% THD+N max (1kHz)

■LOW CURRENT CONSUMPTION: 2.5mA max

■High Signal-to-Noise ratio: 103dB(A) at 5V

■High Crosstalk immunity: 83dB (F=1kHz)

■PSRR: 58 dB (F=1kHz), inputs grounded

■ON/OFF click reduction circuitry

■Unity-Gain S table

■SHORT CIRCUIT LIMITATION

■Available in SO8, MiniSO8 & DFN 3x3mm

DESCRIPTION

The TS486/7 is a dual audio power amplifier capa­ble of driving, in single-ended mode, either a 16 or
a 32Ω stereo headset.
Capable of descending to lo w voltages , it delivers
up to 90mW per channel (into 16Ω loads) of con­tinuous average power with 0.3% THD+N in the
audio bandwitdth from a 5V power supply.
An externally-controlled standby mode reduces
the supply current t o 10nA (typ.). The unity gain
stable TS486/7 can be configured by external
gain-setting resistors or used in a f ixed gain ver­sion.

APPLICATIONS

■Headphone Amplifier

■Mobile phone, PDA, computer motherboard

■High end TV, portable audio player

ORDER CODE

MiniSO & DFN only available in Tape & Reel with T suffix,
SO is available in Tube (D) and in Tape & Reel (DT)

PIN CONNECTIONS (top view)

Part

Number

Temperature

Range: I

Package

Gain Marking

DSQ

TS486

-40, +85°C

•

external TS486I

TS487

•

external TS487I

TS486

••

external K86A
TS486-1 tba tba x1/0dB K86B
TS486-2 tba tba x2/6dB K86C
TS486-4 tba tba x4/12dB K86D
TS487

••

external K87A
TS487-1 tba tba x1/0dB K87B
TS487-2 tba tba x2/6dB K87C
TS487-4 tba tba x4/12dB K87D

TS487IDT: SO8, TS487IST, TS487-1IST,

TS487-2IST, TS487-4IST: MiniSO8

TS486-IQT, TS486-1IQT, TS486-2IQT, TS486-4IQT:

DFN8

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

TS487-IQT,

TS487-1IQT, TS487-2IQT, TS487-4IQT: DFN8

TS486IDT: SO8, TS486IST, TS486-1IST,

TS486-2IST, TS486-4IST: MiniSO8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

TS486
TS487

100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY

MODE

June 2003

TS486-TS487

2/31

ABSOLUTE MAXIMUM RATINGS

OPERATING CONDITIONS

Symbol Parameter Value Unit

V

CC

Supply voltage

1)

6V

V

i

Input Voltage

-0.3v to V

CC

+0.3v

V

T

stg

Storage Temperature -65 to +150 °C

T

j

Maximum Junction Temperature 150 °C

R

thja

Thermal Resistance Junction to Ambient

SO8
MiniSO8
DFN8

175
215

70

°C/W

Pd

Power Dissipation

2)

SO8
MiniSO8
DFN8

0.71

0.58

1.79

W

ESD

Human Body Model (pin to pin): TS486, TS487

3)

1.5 kV

ESD Machine Model - 220pF - 240pF (pin to pin) 100 V

Latch-up Latch-up Immunity (All pins) 200 mA

Lead Temperature (soldering, 10sec ) 250 °C
Output Short-Circuit to Vcc or GND

continous

4)

1. All voltage values are measured with respect to the ground pin.

2. Pd has been calculated with Tamb = 25°C, Tjunction = 150°C.

3. TS487 stands 1.5KV on all pins except sta ndby pin which st ands 1KV.

4. Attention must be pai d to continou s pow er dissipation (V

DD

x 300mA). Exposure of the IC to a short circuit for an extended time period is

dramatically reducing product lif e expectancy .

Symbol Parameter Value Unit

V

CC

Supply Voltage 2 to 5.5 V

R

L

Load Resistor

≥

16

Ω

T

oper

Operating Free Air Temperature Range -40 to + 85 °C

C

L

Load Capacitor

R

L

= 16 to 100

Ω

R

L

> 100

Ω

400
100

pF

V

STB

Standby Voltage Input

TS486 ACTIVE / TS487 in STANDBY
TS486 in STANDBY / TS487 ACTIVE

1.5 ≤ V

STB

≤ V

CC

GND ≤ V

STB

≤ 0.4

1)

V

R

THJA

Thermal Resistance Junction to Ambient

SO8
MiniSO8

DFN8

2)

150
190

41

°C/W

1. The minimum current consumption (I

STANDBY

) is guaranteed at GND (TS486) or VCC (TS487) for the whole temperature range.

2. When mounted on a 4-l ayer PCB.

TS486-TS487

3/31

FIXED GAIN VERSION SPECIFIC ELECTRICAL CHARACTERISTI CS

V

CC

from +5V to +2V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

APPLICATION COMPONENTS INFORMATION

TYPICAL APPLICATION SCHEMATICS

Symbol Parameter Min. Typ. Max. Unit

R

IN 1,2

Input Resistance

1)

1. See figure 30 to establish the value of Cin vs. -3dB cut off frequency.

20 k

Ω

G

Gain value for Gain TS486/TS487-1
Gain value for Gain TS486/TS487-2
Gain value for Gain TS486/TS487-4

0dB
6dB

12dB

dB

Components Functional Description

R

IN1,2

Inverting input resistor which sets the closed loop gain in conjunction with R

FEED

. This resistor also

forms a high pass filter with C

IN

(fc = 1 / (2 x Pi x RIN x CIN)) . Not needed in fixed gain versions.

C

IN1,2

Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminal.

R

FEED1,2

Feedback resistor which sets the closed loop gain in conjunction with RIN.
A

V

= Closed Loop Gain= -R

FEED/RIN

. Not needed in fixed gain versions.

C

S

Supply Bypass capacitor which provides power supply filtering.

C

B

Bypass capacitor which provides half supply filtering.

C

OUT1,2

Output coupling capacitor which blocks the DC voltage at the load input terminal.
This capacitor also forms a high pass filter with RL (fc = 1 / (2 x Pi x R

L

x C

OUT

)).

TS486-TS487

4/31

ELECTRICAL CHARACTERISTICS

V

CC

= +5V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.8 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

1)

1. Only for extern al gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.1% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

60
95

64

65
102
108

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 60mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 90mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

2)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

2. Guaranteed by design and evaluation.

53 58 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

106 115 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

4.45

4.2

0.45

4.52

0.6

4.35

0.5

0.7

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1)

2)

(RL = 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 103 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

83

79

80

72

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

5/31

ELECTRICAL CHARACTERISTICS

V

CC

= +3.3V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

1)

1. All electrical values are guaranted with correlation measurements at 2V and 5V.

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.8 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

2)

2. Only for external gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.1% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

23
36

26

28

38

42

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 16mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 35mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

3)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

3. Guaranteed by des i gn and evaluation.

53 58 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

64 75 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

2.85

2.68

0.3
3

0.45

2.85

0.38

0.52

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1) 3)

(R

L

= 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 98 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

80
76

77
69

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

6/31

ELECTRICAL CHARACTERISTICS

V

CC

= +2.5V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

1)

1. All electrical values are guaranted with correlation measurements at 2V and 5V.

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.7 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

2)

2. Only for external gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.1% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

12.5

17.5

13
14
21
22

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 10mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 16mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

3)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

3. Guaranteed by des i gn and evaluation.

53 58 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

45 56 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

2.14

1.97

0.25

2.25

0.35

2.15

0.32

0.45

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1)

3)

(RL = 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 95 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

80
76

77
69

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

7/31

ELECTRICAL CHARACTERISTICS

V

CC

= +2V, GND = 0V , T

amb

= 25°C (unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.7 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

1)

1. Only for extern al gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.3% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

7

9.5

8
9

12
13

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 6.5mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 8mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

2)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

2. Guaranteed by design and evaluation.

52 57 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

33 41 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

1.67

1.53

0.24

1.73

0.33

1.63

0.29

0.41

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1)

2)

(RL = 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 93 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

80
76

77
69

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

8/31

Index of Graphs

Description Figure Page

Common Curves

Open Loop Gain and Phase vs Frequency 1 to 10 9 to 10
Current Consumption vs Power Supply Voltage 11 10
Current Consumption vs Standby Voltage 12 to 17 10 to 11
Output Power vs Power Supply Voltage 18 to19 11 to 12
Output Power vs Load Resistor 20 to 23 12
Power Dissipation vs Output Power 24 to 27 12 to 13
Power Derating vs Ambiant Temperature 28 13
Output Voltage Swing vs Supply Voltage 29 13
Low Frequency Cut Off vs Input Capacitor for fixed gain versions 30 13

Curves With 0dB Gain Setting (Av=-1)

THD + N vs Output Power 31 to 39 14 to 15
THD + N vs Frequency 40 to 42 15
Crosstalk vs Frequency 43 to 48 16
Signal to Noise Ratio vs Power Supply Voltage 49 to 50 17
PSRR vs Frequency 51 to 56 17 to 18

Curves With 6dB Gain Setting (Av=-2)

THD + N vs Output Power 57 to 65 19 to 20
THD + N vs Frequency 66 to 68 20
Crosstalk vs Frequency 69 to 72 21
Signal to Noise Ratio vs Power Supply Voltage 73 to 74 21
PSRR vs Frequency 75 to 79 22

Curves With 12dB Gain Setting (Av=-4)

THD + N vs Output Power 80 to 88 22 to 24
THD + N vs Frequency 89 to 91 24
Crosstalk vs Frequency 92 to 95 24
Signal to Noise Ratio vs Power Supply Voltage 96 to 97 25
PSRR vs Frequency 98 to 102 26

TS486-TS487

9/31

Fig. 1: Open Loop Gain and Phase vs
Frequency

Fig. 3: Open Loop Gain and Phase vs
Frequency

Fig. 5: Open Loop Gain and Phase vs
Frequency

Fig. 2: Open Loop Gain and Phase vs
Frequency

Fig. 4: Open Loop Gain and Phase vs
Frequency

Fig. 6: Open Loop Gain and Phase vs
Frequency

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 16

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 16

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 32

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 16Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 16Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 32Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

TS486-TS487

10/31

Fig. 7: Open Loop Gain and Phase vs
Frequency

Fig. 9: Open Loop Gain and Phase vs
Frequency

Fig. 11: Current Consumption vs Power Supply
Voltage

Fig. 8: Open Loop Gain and Phase vs
Frequency

Fig. 10: Open Loop Gain and Phase vs
Frequency

Fig. 12: Current Consumption vs Standby
Voltage

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 32

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
RL = 600

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

012345

0.0

0.5

1.0

1.5

2.0

Ta=85

°C

Ta=25°C

No load

Ta=-40°C

Current Consumption (mA)

Power Supply Voltage (V)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 32Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
RL = 600

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

012345

0.0

0.5

1.0

1.5

2.0

Ta=85

°C

Ta=25°C

TS486
Vcc = 5V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)