參數(shù)資料
型號: TS421IST
廠商: STMICROELECTRONICS
元件分類: 音頻/視頻放大
英文描述: 0.367 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: MINI, PLASTIC, SO-8
文件頁數(shù): 27/32頁
文件大小: 1000K
代理商: TS421IST
TS419-TS421
4/32
ELECTRICAL CHARACTERISTICS
VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply Current
No input signal, no load
1.8
2.5
mA
ISTANDBY
Standby Current
No input signal, VSTANDBY=GND for TS421
No input signal, VSTANDBY=Vcc for TS419
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 16 or 32
, Rfeed=20k
525
mV
PO
Output Power
THD+N = 0.1% Max, F = 1kHz, RL = 32
THD+N =
1% Max, F = 1kHz, RL = 32
THD+N = 10% Max, F = 1kHz, RL = 32
THD+N = 0.1% Max, F = 1kHz, RL = 16
THD+N =
1% Max, F = 1kHz, RL = 16
THD+N = 10% Max, F = 1kHz, RL = 16
166
240
190
207
258
270
295
367
mW
THD + N
Total Harmonic Distortion + Noise (Av=2)
RL = 32, Pout = 150mW, 20Hz ≤ F ≤ 20kHz
RL = 16, Pout = 220mW, 20Hz ≤ F ≤ 20kHz
0.15
0.2
%
PSRR
Power Supply Rejection Ratio (Av=2)
1)
F = 1kHz
, Vripple = 200mVpp, input grounded, Cb=1F
1. Guaranteed by design and evaluation.
50
56
dB
SNR
Signal-to-Noise Ratio (Filter Type A, Av=2)
1)
(RL = 32, THD +N < 0.5%, 20Hz ≤ F ≤ 20kHz)
85
98
dB
Φ
M
Phase Margin at Unity Gain
RL = 16, CL = 400pF
58
Degrees
GM
Gain Margin
RL = 16, CL = 400pF
18
dB
GBP
Gain Bandwidth Product
RL = 16
1.1
MHz
SR
Slew Rate
RL = 16
0.4
V/
S
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