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PDF TS4855 Data sheet ( Hoja de datos )
| Número de pieza | TS4855 | |
| Descripción | LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TS4855 (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
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TS4855
LOUDSPEAKER & HEADSET DRIVER
WITH VOLUME CONTROL
s OPERATING FROM VCC = 3.0 V to 5.0 V
s SPEAKER: Mono, THD+N @ 1 kHz is 1%
Max @ 1 W into 8 Ω BTL
s HEADSET: Stereo, THD+N @ 1 kHz is 0.5%
Max. @ 85 mW into 32 Ω BTL
s VOLUME CONTROL: 32-step digital
volume control
s OUTPUT MODE: Eight different selections
s Ultra low pop-and-click
s Low Shutdown Current (0.1 µA, typ.)
s Thermal Shutdown Protection
s FLIP-CHIP Package 18 X 300 µm Bumps
DESCRIPTION
The TS4855 is a complete low power audio
amplifier solution targeted at mobile phones. It
integrates, into an extremely compact flip-chip
package, an audio amplifier, a speaker driver, and
a headset driver.
The Audio Power Amplifier can deliver 1.1 W
(typ.) of continuous RMS output power into an 8 Ω
speaker with a 1% THD+N value. To the headset
driver, the amplifier can deliver 85 mW (typ.) per
channel of continuous average power into stereo
32 Ω bridged-tied load with 0.5% THD+N @ 5 V.
This device features a 32-step digital volume
control and 8 different output selections. The
digital volume and output modes are controlled
through a three-digit SPI interface bus.
APPLICATIONS
• Mobile Phones
ORDER CODE
Part Number
TS4855IJT
Temperature
Range
-40, +85°C
Package
J
•
J = Flip Chip Package - only available in Tape & Reel (JT))
PIN CONNECTIONS (top view)
TS4855IJT - Flip Chip
Pin Out (top view)
April 2003
1/27
1 page  
Absolute Maximum Ratings
2.3 SPI Timing Diagram
TS4855
3 ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VCC
Toper
Tstg
Tj
Rthja
Pd
ESD
ESD
Supply voltage 1
Operating Free Air Temperature Range
Storage Temperature
Maximum Junction Temperature
Flip Chip Thermal Resistance Junction to Ambient 2
Power Dissipation
Human Body Model 3
Machine Model 4
Latch-up Immunity
Lead Temperature (soldering, 10sec)
Value
6
-40 to + 85
-65 to +150
150
166
Internally Limited
2
100
200
250
Unit
V
°C
°C
°C
°C/W
kV
V
mA
°C
1) All voltage values are measured with respect to the ground pin.
2) Device is protected in case of over temperature by a thermal shutdown active @ 150°C typ.
3) Human body model, 100pF discharged through a 1.5kΩ resistor into pin of device.
4) This is a minimum Value. Machine model ESD, a 200pF cap is charged to the specified voltage, then discharged directly into the IC with no external
series resistor (internal resistor < 5Ω), into pin to pin of device.
5.) All PSRR data limits are guaranteed by evaluation tests.
4 OPERATING CONDITIONS
Symbol
Parameter
VCC
Vphin
VRin/VLin
TSD
Supply Voltage
Maximum Phone In Input Voltage
Maximum Rin & Lin Input Voltage
Thermal Shutdown Temperature
Value
3 to 5
GND to VCC
GND to VCC
150
Unit
V
V
V
°C
5/27
5 Page 
Electrical Characteristics
Figure 7: HDout THD+N vs. output power
(Output modes 2, 3 G=+3dB)
10
RL = 32Ω
BW < 125kHz
Tamb = 25°C
1 Vcc=3V
F=20kHz
Vcc=5V
F=20kHz
0.1
1E-3
Vcc=3V
F=1kHz
Vcc=5V
F=1kHz
0.01 0.1
Output Power (W)
Figure 8: HDout THD+N vs. output power
(Output modes 4, 5 G=+12dB)
10
RL = 16Ω
BW < 125kHz
Tamb = 25°C
Vcc=5V
F=20kHz
1 Vcc=3V
F=20kHz
0.1
0.01
1E-3
Vcc=3V
F=1kHz
Vcc=5V
F=1kHz
0.01
0.1
Output Power (W)
Figure 9: HDout THD+N vs. output power
(Output modes 4, 5 G=+6dB)
10
RL = 16Ω
BW < 125kHz
Tamb = 25°C
Vcc=5V
F=20kHz
1 Vcc=3V
F=20kHz
0.1
0.01
1E-3
Vcc=3V
F=1kHz
Vcc=5V
F=1kHz
0.01
0.1
Output Power (W)
TS4855
Figure 10: HDout THD+N vs. output power
(Output modes 4, 5 G=+12dB)
10
RL = 32Ω
BW < 125kHz
Tamb = 25°C
Vcc=5V
F=20kHz
1 Vcc=3V
F=20kHz
0.1
1E-3
Vcc=3V Vcc=5V
F=1kHz F=1kHz
0.01
0.1
Output Power (W)
Figure 11: HDout THD+N vs. output power
(Output modes 4, 5 G=+6dB)
10
RL = 32Ω
BW < 125kHz
Tamb = 25°C
Vcc=5V
F=20kHz
1 Vcc=3V
F=20kHz
0.1
1E-3
Vcc=3V
F=1kHz
Vcc=5V
F=1kHz
0.01
0.1
Output Power (W)
Figure 12: HDout THD+N vs. frequency
(Output modes 1, 3, 5, 7)
10
RL = 4Ω
BW < 125kHz
Tamb = 25°C
1
Vcc=5V
Vcc=3V
P=1W
P=450mW
0.1
100
1000
Frequency (Hz)
10000
11/27
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet TS4855.PDF ] | |
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