參數(shù)資料
型號(hào)： TS4962
廠商： 意法半導(dǎo)體
英文描述： 3W Filter-free Class D Audio Power Amplifier
中文描述： 3W無(wú)濾波器D類音頻功率放大器
文件頁(yè)數(shù)： 1/22頁(yè)
文件大?。?/td> 1275K
代理商： TS4962
February 2005
Revision 2
1/22
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Operating from Vcc=2.4V to 5.5V
Standby mode active low
Output power: 3W into 4
and 1.75W into 8
with 10% THD+N max and 5V power supply.
Output power: 2.3W @5V or 0.75W @ 3.0V
into 4
with 1% THD+N max.
Output power: 1.4W @5V or 0.45W @ 3.0V
into 8
with 1% THD+N max.
Adjustable gain via external resistors
Low current consumption 2mA @ 3V
Efficiency: 88% typ.
Signal to noise ratio: 85dB typ.
PSRR: 63dB typ. @217Hz with 6dB gain
PWM base frequency: 250kHz
Low pop & click noise
Thermal shutdown protection
Available in flip-chip 9 x 300um in lead free*
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Description
The TS4962 is a differential class-D B.T.L. power
amplifier. Able to drive up to 2.3W into a 4
load
and 1.4W into a 8
load at 5V. It achieves
outstanding efficiency (88%typ.) compared to
classical AB-class audio amps.
Gain of the device can be controlled via two
external gain setting resistors. POP & CLICK
reduction circuitry provides low on/off switch noise
while allowing the device to start within 5ms.A
standby function (active low) allows to lower the
current consumption to 10nA typ.
Applications
Cellular Phone
■
PDA
■
Notebook PC
Order Codes
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Pin Connections
(top view)
In-
In+
Stdby
Out-
Out+
Vcc
C2
C1
A1
A2
A3
B1
B2
B3
C3
GND
Internal
Bias
PWM
Output
H
Bridge
Oscillator
150k
150k
+
-
3
TS4962EIJT
Block Diagram
V
DD
1/A1
7/C1
8/C2
9/C3
4/B1
6/B3
2/A2
3/A3
5/B2
V
DD
IN
-
IN
+
GND
STBY
GND
OUT
+
OUT
-
IN+: positive differential input
IN-: negative differential input
VDD: analog power supply
GND: power supply ground
STBY: standby pin (active low)
OUT+: positive differential output
OUT-: negative differential output
Part Number
Temperature Range
Package
Packaging
Marking
TS4962IJT
TS4962EIJT
TS4962EKIJT
-40, +85°C
-40, +85°C
Flip-Chip
Tape & Reel
A62
A62
Lead -Free Flip-Chip
Lead Free + Back
Coating
-40, +85°C
A62
3W Filter-free Class D Audio Power Amplifier
This product preview information shows the electrical and mechanical performances of a finalized product. However, details could still be modified.
PRELIMINARY DATA
TS4962
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