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參數(shù)資料
| 型號： | TA2145AF |
| 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 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大小： | 289K |
| 代理商： | TA2145AF |
TA2145AF
2002-04-19
8
Electrical Characteristics
(Unless otherwise specified, VCC
==== 3 V, Ta ==== 25°C, f ==== 1 kHz, SW2: a, SW5: OPEN
Preamplifier:
Rg
==== 2.2 kW
W
W, RL ==== 10 kW
W
W, SW1: ON, SW3: b, SW4: b
Power amplifier: Rg
==== 600 W
W
W, RL ==== 16 W
W
W, 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 kW, SW1: OPEN
BPF
= 20 Hz~20 kHz,
NAB (GV = 35dB, f = 1 kHz)
1.2
2.4
mVrms
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
P
re
am
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 W, THD = 10%
17
28
mW
Output power 2
Po2
RL = 32 W, THD = 10%
20
mW
Total harmonic distortion
THD2
Po = 1m W
0.5
%
Output noise voltage
Vno
Rg = 600 W, SW3: b
BPF
= 20 Hz~20 kHz
270
400
mVrms
Ripple rejection ratio
RR2
fr = 100 Hz, Vr = -20dBV
52
dB
Cross talk
CT2
Vo = -10dBV
32
dB
P
o
wer
am
p.
Dc volume maximum
attenuation
ATT2
Vo = -10dBV, SW4: ab
(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
,VREF
Im = 100 mA
0.76
0.81
0.86
V
Reference voltage
fluctuation 1
,VREF1
VCC = 2.1~3.6 V
0.25
%/V
Reference voltage
fluctuation 2
,VREF2
Im = 25~250 mA
0.003
%/mA
Reference voltage
fluctuation 3
,VREF3
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
rgo
v
e
rnor
Current ratio fluctuation 3
,K3
Ta
= -25~75°C
0.005
%/°C
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