TS4973
1.2W
TWO AUDIO INPUTS WITH GAIN CONTROL POWER
AMPLIFIER WITH STANDBY MODE ACTIVE LOW
ADVANCE DATA
s
OPERATING FROM
V
CC
= 2.8V to 5.5V
s
RAIL TO RAIL
OUTPUT
s
1.2W OUTPUT POWER @ Vcc=5V, THD=1%,
F=1kHz, with
8
Ω
Load
MODE
(10nA)
PIN CONNECTIONS
(top view)
TS4973IJT - FLIP CHIP
s
ULTRA LOW CONSUMPTION IN STANDBY
s
53dB
PSRR @ 217Hz from 2.8 to 5V
s
LOW POP & CLICK
s
ULTRA LOW DISTORTION
(0.05%)
s
GAIN SETTINGS PIN :
GS
s
UNITY GAIN STABLE
s
FLIP CHIP PACKAGE 9 x 300µm bumps
DESCRIPTION
At 3.3v, the TS4973 is an Audio Power Amplifier
capable of delivering 400mW of continuous RMS
ouput power into a 8
Ω
bridged-tied loads with 1%
THD+N, and 30mW( typ ) per channel of continu-
ous average power into stereo 32
Ω
BTL loads with
0.5% THD+N from 20Hz to 20kHz. An external
standby mode control reduces the supply current
to less than 10nA. An internal over-temperature
shutdown protection is provided.
The TS4973 has been designed for high quality
audio applications such as mobile phones and to
minimize the number of external components. It
has two inputs which can be used to switch the
gain between 6dB ( internal ) or a user’s adjust-
able gain setting with one external resitance.
APPLICATIONS
Vin2
VCC
STBY
VOUT1
GS
VOUT2
Vin1
GND
BYPASS
TYPICAL APPLICATION SCHEMATIC
s
Mobile Phones (Cellular / Cordless)
s
PDAs
s
Laptop/Notebook computers
s
Portable Audio Devices
ORDER CODE
Part
Number
TS4973IJT
Temperature
Range
-40, +85°C
Package
Marking
J
•
A73
VCC
Cs
6
Cin1 Rin
Audio
Inputs
1
In1
VCC
-
Vout 1
8
7
Cin2
Gain Setting level
threshold = 0.9V
In2
+
RL
8 Ohms
9
Gain Setting
-
AV = -1
Vout 2
4
3
Bypass
+
Standby level
threshold = 0.9V
5
Standby
Bias
GND
TS4973
Cb
2
J =
Flip Chip Package - only available in Tape & Reel (JT))
February 2003
This is a preliminary information on a new product now in development. Details are subject to change without notice.
1/9
TS4973
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
i
T
oper
T
stg
T
j
R
thja
Pd
Supply voltage
1)
Input Voltage
2)
Operating Free Air Temperature Range
Storage Temperature
Maximum Junction Temperature
Thermal Resistance Junction to Ambient
3)
Power Dissipation
Parameter
Value
6
G
ND
to V
CC
-40 to + 85
-65 to +150
150
200
Internally Limited
4)
2
200
200
250
Unit
V
V
°C
°C
°C
°C/W
kV
V
mA
°C
ESD
Human Body Model
ESD
Machine Model
Latch-up Latch-up Immunity
Lead Temperature (soldering, 10sec)
1.
2.
3.
4.
All voltages values are measured with respect to the ground pin.
The magnitude of input signal must never exceed V
CC
+ 0.3V / G
ND
- 0.3V
Device is protected in case of over temperature by a thermal shutdown active @ 150°C.
Exceeding the power derating curves during a long period, involves abnormal operating condition.
OPERATING CONDITIONS
Symbol
V
CC
V
ICM
V
STB
Supply Voltage
Common Mode Input Voltage Range
Standby Voltage Input :
Device ON
Device OFF
Gain Setting Voltage Input :
External Gain (In1 Input)
Internal Gain (In2 Input)
Load Resistor
Thermal Resistance Junction to Ambient
1)
Parameter
Value
2.8 to 5.5
G
ND
to V
CC
- 1.5V
1.5
≤
V
STB
≤
V
CC
GND
≤
V
STB
≤
0.4
1.5
≤
V
STB
≤
V
CC
GND
≤
V
STB
≤
0.4
4 - 32
90
Unit
V
V
V
V
GS
R
L
R
thja
V
Ω
°C/W
1.
With Heat Sink Surface = 125mm
2
2/9
TS4973
ELECTRICAL CHARACTERISTICS
V
CC
=
+5V,
GND =
0V,
T
amb
= 25°C (unless otherwise specified)
Symbol
I
CC
I
STANDBY
Voo
Po
BTL GAIN
THD + N
Parameter
Supply Current
No input signal, no load
Standby Current
1)
No input signal, Vstdby = Gnd, RL = 8Ω
Output Offset Voltage
No input signal, RL = 8Ω
Output Power
THD = 1% Max, f = 1kHz, RL = 8Ω
GS = Low
input signal Vin = 100mV rms, RL = 8Ω
Total Harmonic Distortion + Noise
Po = 250mW rms, GS = Low, 20Hz < f < 20kHz, RL = 8Ω
Power Supply Rejection Ratio
2)
F = 217Hz, RL = 8Ω, GS = Low, Vripple = 200mV rms
Input Grounded, Cin = 220nF, Cb = 1µF
Power Supply Rejection Ratio
3)
F = 217Hz, RL = 8Ω, GS = Low, Vripple = 200mV rms
Input floating, Cb = 1µF
Input Impedance
GS = Low
Internal Feedback Resistor
Phase Margin at GS = Low
R
L
= 8Ω, C
L
= 500pF
Gain Margin
R
L
= 8Ω, C
L
= 500pF
Gain Bandwidth Product
R
L
= 8Ω
37.5
37.5
50
0.85
5.6
Min.
Typ.
6
10
5
1.2
6
0.1
6.4
Max.
8
1000
20
Unit
mA
nA
mV
W
dB
%
PSRR
53
dB
PSRR
75
dB
Zin
Rfeed
Φ
M
GM
GBP
50
50
70
20
2
62.5
62.5
KΩ
KΩ
Degrees
dB
MHz
1. Standby mode is actived when Vstdby is tied to Gnd
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz
3. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz
3/9
TS4973
ELECTRICAL CHARACTERISTICS
V
CC
=
+3.3V,
GND =
0V,
T
amb
= 25°C (unless otherwise specified)
4)
Symbol
I
CC
I
STANDBY
Voo
Po
BTL GAIN
THD + N
Parameter
Supply Current
No input signal, no load
Standby Current
1)
No input signal, Vstdby = Vcc, RL = 8Ω
Output Offset Voltage
No input signal, RL = 8Ω
Output Power
THD = 1% Max, f = 1kHz, RL = 8Ω
GS = Low
input signal Vin = 100mV rms, RL = 8Ω
Total Harmonic Distortion + Noise
Po = 250mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8Ω
Power Supply Rejection Ratio
2)
f = 217Hz, RL = 8Ω, GS = Low, Vripple = 200mV rms
Input Grounded, Cin = 220nF, Cb = 1µF
Power Supply Rejection Ratio
3)
f = 217Hz, RL = 8Ω, GS = Low, Vripple = 200mV rms
Input floating, Cb = 1µF
Input Impedance
GS = Low
Internal Feedback Resistor
Phase Margin at Unity Gain
R
L
= 8Ω, C
L
= 500pF
Gain Margin
R
L
= 8Ω, C
L
= 500pF
Gain Bandwidth Product
R
L
= 8Ω
37.5
37.5
50
350
5.6
Min.
Typ.
5.5
10
5
500
6
0.1
6.4
Max.
8
1000
20
Unit
mA
nA
mV
mW
dB
%
PSRR
53
dB
PSRR
75
dB
Zin
Rfeed
Φ
M
GM
GBP
1.
2.
3.
4.
50
50
70
20
2
62.5
62.5
KΩ
KΩ
Degrees
dB
MHz
Standby mode is actived when Vstdby is tied to Vcc
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ f = 217Hz
All electrical values are made by correlation between 2.8V and 5V measurements
4/9
TS4973
ELECTRICAL CHARACTERISTICS
V
CC
=
2.8V,
GND =
0V,
T
amb
= 25°C (unless otherwise specified)
Symbol
I
CC
I
STANDBY
Voo
BTL GAIN
Po
THD + N
Parameter
Supply Current
No input signal, no load
Standby Current
1)
No input signal, Vstdby = Vcc, RL = 8Ω
Output Offset Voltage
No input signal, RL = 8Ω
GS = Low
input signal Vin = 100mV rms, RL = 8Ω
Output Power
THD = 1% Max, f = 1kHz, RL = 8Ω
Total Harmonic Distortion + Noise
Po = 200mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8Ω
Power Supply Rejection Ratio
2)
F = 217Hz, RL = 8Ω, GS = Low, Vripple = 200mV rms
Input Grounded, Cin = 220nF, Cb = 1µF
Power Supply Rejection Ratio
3)
F = 217Hz, RL = 8Ω, GS = Low, Vripple = 200mV rms
Input Floating, Cb = 1µF
Input Impedance
GS = Low
Internal Feedback Resistor
Phase Margin at Unity Gain
R
L
= 8Ω, C
L
= 500pF
Gain Margin
R
L
= 8Ω, C
L
= 500pF
Gain Bandwidth Product
R
L
= 8Ω
37.5
37.5
50
5.6
250
Min.
Typ.
5.5
10
5
6
350
0.1
Max.
8
1000
20
6.4
Unit
mA
nA
mV
dB
mW
%
PSRR
53
dB
PSRR
75
dB
Zin
Rfeed
Φ
M
GM
GBP
50
50
70
20
2
62.5
62.5
KΩ
KΩ
Degrees
dB
MHz
1. Standby mode is actived when Vstdby is tied to Gnd
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ F = 217Hz
3. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is an added sinus signal to Vcc @ F = 217Hz
5/9
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