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参数资料
| 型号： | TA8145FN |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.008 W, 3 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| 封装： | SSOP-16 |
| 文件页数： | 4/7页 |
| 文件大小： | 660K |
| 代理商： | TA8145FN |
TA8145FN
2002-10-30
4
Maximum Ratings (Ta = 25°C)
Characteristic
Symbol
Rating
Unit
Supply voltage
VCC
4.5
V
Power amplifier
IO (peak)
60
Output current
Ripple filter
(built
-in transistor)
IRF
5
mA
Power dissipation
(Note)
PD
400
mW
Operating temperature
Topr
-25~75
Storage temperature
Tstg
-55~150
°C
Note: Derated above Ta = 25°C in the proportion of 3.2mW / °C.
Electrical Characteristics
Unless Otherwise Specified. VCC = 1.2V, RL = 16, Rg = 600, f = 1kHz, Ta = 25°C
SW1: a, SW2: a, SW3: a, SW4: ON, SW5: ON
Characteristic
Symbol
Test
Cir
-
cuit
Test Condition
Min.
Typ.
Max.
Unit
ICCO1
—
Power off, SW1: b, SW2: b
—
0.1
5
A
ICCO2
Mute on, SW2: b
—
1.6
3
Quiescent current
ICCO3
—
Vin = 0, SW3: b
—
10
14
mA
Voltage gain
GV
Vo (A) = Vo (B) = -22dBV
20
22
24
Channel balance
CB
—
Vo = -22dBV
—
0
1.5
dB
Output power
Po
—
VCC = 1.5V, THD = 10%
Vin (A) = Vin (B)
5
8
—
mW
Total harmonic
distortion
THD
—
VCC = 1V
Po (A) = Po (B) = 0.5mW
—
0.7
1.5
%
Output noise voltage
Vno
—
SW3: b, BPF = 20Hz~20kHz
—
27
40
Vrms
Cross talk
CT
Vo = -22dBV
31
37
—
Ripple rejection ratio
RR1
VCC = 1V, fr = 100Hz
Vr = -32dBV, SW4: open
45
52
—
P
ower
am
pl
ifi
er
Muting attenuation
ATT
—
Vo = -22dBV, SW2: a→b
65
80
—
dB
Ripple filter output
voltage
VRF
—
VCC = 1V, IRF = 30mA
0.86
0.9
—
V
Ripple rejection ratio of
ripple filter output
RR2
—
VCC = 1V, IRF = 30mA
fr = 100Hz, Vr = -32dBV
SW4: open
30
37
—
dB
Power on
current
I1
—
VCC = 0.9V, V5 ≥ 0.5V, SW1: c
5
—
A
Power
switch Power off
voltage
V1
—
VCC = 0.9V, V5 ≤ 0.1V
SW1: d
0
—
0.3
V
Mute off
current
I16
—
VCC = 0.9V, V13 ≥ 0.3V, SW2: c
5
—
A
Mute
switch Mute on
voltage
V16
—
VCC = 0.9V, V13 ≤ 0.3V
SW2: d
0
—
0.3
V
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