參數(shù)資料
型號(hào)： 8547TS
廠商： NXP Semiconductors N.V.
元件分類(lèi)： 音頻放大器
英文描述： 2 x 0.7 W BTL audio amplifier with output channel switching
中文描述： 2 × 0.7糯橋接音頻放大器的輸出開(kāi)關(guān)通道
文件頁(yè)數(shù)： 2/20頁(yè)
文件大?。?/td> 162K
代理商： 8547TS
1998 Apr 01
2
Philips Semiconductors
Product specification
2
×
0.7 W BTL audio amplifier with
output channel switching
TDA8547TS
FEATURES
Selection between output channels
Flexibility in use
Few external components
Low saturation voltage of output stage
Gain can be fixed with external resistors
Standby mode controlled by CMOS compatible levels
Low standby current
No switch-on/switch-off plops
High supply voltage ripple rejection
Protected against electrostatic discharge
Outputs short-circuit safe to ground, V
CC
and across the
load
Thermally protected.
APPLICATIONS
Telecommunication equipment
Portable consumer products
Personal computers
Motor-driver (servo).
GENERAL DESCRIPTION
The TDA8547TS is a two channel audio power amplifier
for an output power of 2
×
0.7 W with a 16
load at a 5 V
supply. At a low supply voltage of 3.3 V an output power of
0.6 W with an 8
load can be obtained. The circuit
contains two BTL amplifiers with a complementary
PNP-NPN output stage and standby/mute logic.
The operating condition of all channels of the device
(standby, mute or on) is externally controlled by the
MODE pin. With the SELECT pin one of the output
channels can be switched in the standby condition. This
feature can be used for loudspeaker selection and also
reduces the quiescent current consumption.
When only one channel is used the maximum output
power is 1.2 W.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
CC
I
q
supply voltage
quiescent current
2.2
5
15
8
18
22
12
10
V
mA
mA
μ
A
V
CC
= 5 V; 2 channels
V
CC
= 5 V; 1 channel
I
stb
P
o
standby current
output power
two channels
THD = 10%; R
L
= 8
; V
CC
= 3.3 V
THD = 10%; R
L
= 16
; V
CC
= 5 V
THD = 10%; R
L
= 8
; V
CC
= 5 V
THD = 10%; R
L
= 4
; V
CC
= 3.3 V
P
o
= 0.4 W
0.5
0.6
1
1
50
0.6
0.7
1.2
1.2
0.15
W
W
W
W
%
dB
one channel
THD
SVRR
total harmonic distortion
supply voltage ripple rejection
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8547TS
SSOP20
plastic shrink small outline package; 20 leads; body width 4.4 mm
SOT266-1
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