參數(shù)資料
型號(hào)： TS4902IST
廠商： 意法半導(dǎo)體
元件分類： 音頻放大器
英文描述： 300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW
中文描述： 在3.3V電源音頻功率放大器具有待機(jī)模式300mW的低電平
文件頁(yè)數(shù)： 3/19頁(yè)
文件大?。?/td> 399K
代理商： TS4902IST
TS4902
3/19
ELECTRICAL CHARACTERISTICS
V
CC
=
+5V
, GND =
0V
, T
amb
= 25°C (unless otherwise specified)
V
CC
=
+3.3V
, GND =
0V
, T
amb
= 25°C (unless otherwise specified)
3)
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
6
8
mA
I
STANDBY
Standby Current
1)
No input signal, Vstdby = GND, RL = 8
1. Standby mode is actived when Vstdby is tied to GND
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
5
20
mV
Po
Output Power
THD = 1% Max, f = 1kHz, RL = 8
0.7
W
THD + N
Total Harmonic Distortion + Noise
Po = 250mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8
0.15
%
PSRR
Power Supply Rejection Ratio
2)
f = 217Hz, RL = 8
,
RFeed = 22K
,
Vripple = 200mV rms
77
dB
Φ
M
Phase Margin at Unity Gain
R
L
= 8
, C
L
= 500pF
70
Degrees
GM
Gain Margin
R
L
= 8
, C
L
= 500pF
20
dB
GBP
Gain Bandwidth Product
R
L
= 8
2
MHz
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
5.5
8
mA
I
STANDBY
Standby Current
1)
No input signal, Vstdby = GND, RL = 8
1. Standby mode is actived when Vstdby is tied to GND
2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz
3. All electrical values are made by correlation between 2.6V and 5V measurements
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8
5
20
mV
Po
Output Power
THD = 1% Max, f = 1kHz, RL = 8
300
mW
THD + N
Total Harmonic Distortion + Noise
Po = 250mW rms, Gv = 2, 20Hz < f < 20kHz, RL = 8
0.15
%
PSRR
Power Supply Rejection Ratio
2)
f = 217Hz, RL = 8
,
RFeed = 22K
,
Vripple = 200mV rms
77
dB
Φ
M
Phase Margin at Unity Gain
R
L
= 8
, C
L
= 500pF
70
Degrees
GM
Gain Margin
R
L
= 8
, C
L
= 500pF
20
dB
GBP
Gain Bandwidth Product
R
L
= 8
2
MHz
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