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參數(shù)資料
| 型號(hào)： | TA2145AFG |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO24 |
| 封裝： | 0.300 INCH, 1 MM PITCH, PLASTIC, SSOP-24 |
| 文件頁(yè)數(shù)： | 15/16頁(yè) |
| 文件大?。?/td> | 309K |
| 代理商： | TA2145AFG |
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TA2145AFG
2006-04-19
8
Electrical Characteristics
(Unless otherwise specified, VCC = 3 V, Ta = 25°C, f = 1 kHz, SW2: a, SW5: OPEN
Preamplifier:
Rg = 2.2 k, RL = 10 k, SW1: ON, SW3: b, SW4: b
Power amplifier: Rg = 600 , RL = 16 , Vol.: max, SW1: OPEN, SW3: a, SW4: a
Motor governor: Im = 100 mA, SW1: OPEN, SW3: b, SW4: b)
Characteristic
Symbol
Test
circuit
Test condition
Min
Typ.
Max
Unit
ICCQ1
Pre off, Vin = 0, Vol.: min,
SW4: b, SW5: ON
7.5
13
Quiescent supply current
ICCQ2
Vin = 0, Vol.: min, SW4: b
8.5
14.5
mA
Open loop voltage gain
GVO
Vo = 10dBV, SW2: b
86
dB
Closed loop voltage gain
GVC
Vo = 10dBV
35
dB
Maximum output voltage
Vom
THD
= 1%
550
720
mVrms
Total harmonic distortion
THD1
Vo = 10dBV
0.02
0.3
%
Equivalent input noise
voltage
Vni
Rg = 2.2 k, SW1: OPEN
BPF
= 20 Hz~20 kHz,
NAB (GV = 35dB, f = 1 kHz)
1.2
2.4
Vrms
Cross talk
CT1
Vo = 10dBV
70
dB
Ripple rejection ratio
RR1
fr = 100 Hz, Vr = 20dBV
48
dB
Preamplifier muting
attenuation
ATT1
Vo = 10dBV, SW5: OPEN → ON
80
dB
Preamplifier on voltage
V18 (ON)
0
0.5
V
Pre
a
m
p.
Preamplifier off voltage
V18 (OFF)
VCC = 1.8 V
1.5
1.8
V
Voltage gain
GV
Vo = 10dBV
29
31
33
dB
Channel balance
CB
Vo = 10dBV
1.5
0
+1.5
dB
Output power 1
Po1
RL = 16 , THD = 10%
17
28
mW
Output power 2
Po2
RL = 32 , THD = 10%
20
mW
Total harmonic distortion
THD2
Po = 1m W
0.5
%
Output noise voltage
Vno
Rg = 600 , SW3: b
BPF
= 20 Hz~20 kHz
270
400
Vrms
Ripple rejection ratio
RR2
fr = 100 Hz, Vr = 20dBV
52
dB
Cross talk
CT2
Vo = 10dBV
32
dB
Pow
e
ram
p
.
Dc volume maximum
attenuation
ATT2
Vo = 10dBV, SW4: a→b
(Vol.: max
→ min)
82
dB
Supply current
ICC
Im = 0
2.5
3.5
mA
Saturation voltage
VCE (sat)
Im = 200 mA
0.5
V
Reference voltage
V
REF
Im = 100 mA
0.76
0.81
0.86
V
Reference voltage
fluctuation 1
V
REF1
VCC = 2.1~3.6 V
0.25
%/V
Reference voltage
fluctuation 2
V
REF2
Im = 25~250 mA
0.003
%/mA
Reference voltage
fluctuation 3
V
REF3
Ta
= 25~75°C
0.005
%/°C
Current ratio
K
34.5
37.5
40.5
Current ratio fluctuation 1
K1
VCC = 2.1~3.6 V
0.25
%/V
Current ratio fluctuation 2
K2
Im = 25~250 mA
0.08
%/mA
M
o
to
rgov
er
nor
Current ratio fluctuation 3
K3
Ta
= 25~75°C
0.005
%/°C
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