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PDF TS4972 Data sheet ( Hoja de datos )
| Número de pieza | TS4972 | |
| Descripción | 1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TS4972 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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TS4972
1.2W AUDIO POWER AMPLIFIER
WITH STANDBY MODE ACTIVE HIGH
s OPERATING FROM VCC = 2.5V to 5.5V
s RAIL TO RAIL OUTPUT
s 1.2W OUTPUT POWER @ Vcc=5V, THD=1%,
F=1kHz, with 8Ω Load
s ULTRA LOW CONSUMPTION IN STANDBY
MODE (10nA)
s 75dB PSRR @ 217Hz from 2.5 to 5V
s LOW POP & CLICK
s ULTRA LOW DISTORTION (0.05%)
s UNITY GAIN STABLE
s FLIP CHIP PACKAGE 8 x 300µm bumps
DESCRIPTION
The TS4972 is an Audio Power Amplifier capable
of delivering 1.6W of continuous RMS ouput pow-
er into a 4Ω load @ 5V.
This Audio Amplifier is exhibiting 0.1% distortion
level (THD) from a 5V supply for a Pout = 250mW
RMS. An external standby mode control reduces
the supply current to less than 10nA. An internal
shutdown protection is provided.
The TS4972 has been designed for high quality
audio applications such as mobile phones and to
minimize the number of external components.
The unity-gain stable amplifier can be configured
by external gain setting resistors.
PIN CONNECTIONS (Top View)
TS4972JT - FLIP CHIP
7 65
Vin+ Vcc Stdby
8 Vout1
Vout2 4
Vin Gnd Bypass
123
APPLICATIONS
s Mobile Phones (Cellular / Cordless)
s PDAs
s Laptop/Notebook computers
s Portable Audio Devices
ORDER CODE
Part
Number
TS4972IJT
Temperature Package
Range
J
-40, +85°C
•
Marking
4972
J = Flip Chip Package - only available in Tape & Reel (JT))
January 2003
TYPICAL APPLICATION SCHEMATIC
Audio
Input
Rin
Cin
VCC
Rstb
Cfeed
Rfeed
VCC
6
VCC
1 Vin- -
7 Vin+ +
3 Bypass
5 Standby Bias
-
AV = -1
+
GND
Cb 2
Cs
Vout 1 8
Vout 2 4
RL
8 Ohms
TS4972
1/28
1 page  
Fig. 1 : Open Loop Frequency Response
60
40
Phase
20
0
-20
-40
0.3 1
Gain
Vcc = 5V
RL = 8Ω
Tamb = 25°C
10 100 1000
Frequency (kHz)
10000
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
-220
Fig. 3 : Open Loop Frequency Response
80
60
40
Phase
20
0
-20
-40
0.3 1
Gain
Vcc = 33V
RL = 8Ω
Tamb = 25°C
10 100 1000
Frequency (kHz)
10000
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
-220
-240
Fig. 5 : Open Loop Frequency Response
80
60
40
Phase
20
0
-20
-40
0.3 1
Gain
Vcc = 2.6V
RL = 8Ω
Tamb = 25°C
10 100 1000
Frequency (kHz)
10000
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
-220
-240
TS4972
Fig. 2 : Open Loop Frequency Response
60
40
Phase
20
0
-20
-40
0.3 1
Gain
Vcc = 5V
ZL = 8Ω + 560pF
Tamb = 25°C
10 100 1000
Frequency (kHz)
10000
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
-220
Fig. 4 : Open Loop Frequency Response
80
60
40
Phase
20
0
-20
-40
0.3 1
Gain
Vcc = 3.3V
ZL = 8Ω + 560pF
Tamb = 25°C
10 100 1000
Frequency (kHz)
10000
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
-220
-240
Fig. 6 : Open Loop Frequency Response
80
60
40
Phase
20
0
-20
-40
0.3 1
Gain
Vcc = 2.6V
ZL = 8Ω + 560pF
Tamb = 25°C
10 100 1000
Frequency (kHz)
10000
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
-200
-220
-240
5/28
5 Page 
Fig. 33 : THD + N vs Output Power
10
RL = 8Ω
Vcc = 5V
Gv = 2
Cb = 0.1µF, Cin = 1µF
1 BW < 125kHz
Tamb = 25°C
20Hz
0.1
0.01
1E-3
20kHz
1kHz
0.01
0.1
Output Power (W)
1
Fig. 35 : THD + N vs Output Power
10
RL = 8Ω, Vcc = 3.3V
Gv = 2
Cb = 0.1µF, Cin = 1µF
BW < 125kHz
1 Tamb = 25°C
0.1
20Hz
20kHz
0.01
1E-3
1kHz
0.01
0.1
Output Power (W)
Fig. 37 : THD + N vs Output Power
10
RL = 8Ω, Vcc = 2.6V
Gv = 2
Cb = 0.1µF, Cin = 1µF
BW < 125kHz
1 Tamb = 25°C
1
0.1
20Hz
20kHz
0.01
1E-3
1kHz
0.01
0.1
Output Power (W)
TS4972
Fig. 34 : THD + N vs Output Power
10
RL = 8Ω, Vcc = 5V, Gv = 10
Cb = 0.1µF, Cin = 1µF
BW < 125kHz, Tamb = 25°C
1
20Hz
0.1
0.01
1E-3
20kHz
1kHz
0.01
0.1
Output Power (W)
1
Fig. 36 : THD + N vs Output Power
10
RL = 8Ω, Vcc = 3.3V, Gv = 10
Cb = 0.1µF, Cin = 1µF
BW < 125kHz, Tamb = 25°C
1
20kHz
20Hz
0.1
0.01
1E-3
1kHz
0.01
0.1
Output Power (W)
1
Fig. 38 : THD + N vs Output Power
10
RL = 8Ω, Vcc = 2.6V, Gv = 10
Cb = 0.1µF, Cin = 1µF
BW < 125kHz, Tamb = 25°C
1
20kHz
20Hz
0.1
1kHz
0.01
1E-3
0.01
0.1
Output Power (W)
11/28
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet TS4972.PDF ] | |
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