参数资料
型号: TS4990IDT
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封装: LEAD FREE, SOP-8
文件页数: 29/32页
文件大小: 714K
代理商: TS4990IDT
Electrical characteristics
TS4990
6/32
Table 5.
Electrical characteristics when VCC = +3.3 V, GND = 0 V, Tamb = 25°C
(unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply current
No input signal, no load
3.3
6
mA
ISTBY
Standby current (1)
No input signal, VSTBY = GND, RL = 8Ω
1.
Standby mode is active when VSTBY is tied to GND.
10
1000
nA
Voo
Output offset voltage
No input signal, RL = 8Ω
110
mV
Pout
Output power
THD = 1% max, F = 1kHz, RL = 8Ω
375
500
mW
THD + N
Total harmonic distortion + noise
Pout = 400mWrms, AV = 2, 20Hz ≤ F ≤ 20kHz, RL =8Ω
0.1
%
PSRR
Power supply rejection ratio(2)
RL = 8Ω, AV = 2, Vripple = 200mVpp, input grounded
F = 217Hz
F = 1kHz
2.
All PSRR data limits are guaranteed by production sampling tests.
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon
VCC.
55
61
63
dB
tWU
Wake-up time (Cb = 1F)
110
140
ms
tSTBY
Standby time (Cb = 1F)
10
s
VSTBYH
Standby voltage level high
1.2
V
VSTBYL
Standby voltage level low
0.4
V
ΦM
Phase margin at unity gain
RL = 8Ω, CL = 500pF
65
Degrees
GM
Gain margin
RL = 8Ω, CL = 500pF
15
dB
GBP
Gain bandwidth product
RL = 8Ω
1.5
MHz
ROUT-GND
Resistor output to GND (VSTBY ≤ VSTBYL)
Vout1
Vout2
4
44
k
Ω
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