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參數(shù)資料
| 型號： | LA8638V |
| 元件分類： | 模擬運算功能 |
| 英文描述： | COMPANDER, PDSO30 |
| 封裝： | SSOP-30 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 399K |
| 代理商： | LA8638V |
No. 5776-2/16
LA8638V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Current drain with no signal
ICCO
No signal
3.0
5.4
7.6
mA
Standby current
ISTBY
Standby mode, No signal
0.4
0.7
0.95
mA
[Transmitter block] Vinrefc = –60 dBV = 0 dB, microphone amplifier gain = 40 dB, RL = 15 k
Output level
VOc
VIN = Vinrefc = 0 dB
–18.1
–16.1
–14.1
dBV
Gain change level
GCc
VIN = –10 dB
3.5
4.0
4.4
dB
Gain error
GEc
VIN = –40 dB
–2.0
–0.7
+1.0
dB
Total harmonic distortion
THDc
VIN = 0 dB
0.45
1.0
%
Output noise voltage
VNOc
Rg = 620
, f = 20 to 20 kHz
1.8
4.5
mVrms
Limiting voltage
VLT
VIN = +30 dB, 1 kHz BPF
0.88
1.05
1.23
Vp-p
Microphone amplifier maximum voltage gain
VG max
40
46
dB
Low pass filter attenuation
Lalt
fIN = 5 kHz; fifth-order Butterworth function
12.0
16.5
25.0
dB
filter (fc = 3.35 kHz)
Muting attenuation
ATTc
VIN = +30 dB, 1 kHz BPF
–83
–65
dBV
Crosstalk level
CTc
RX—VIN = –10 dBV, 1 kHz BPF
–61
–50
dBV
[Receiver block] Vinrefe = –20 dBV = 0 dB, RL = 15 k
Output level
VOe
VIN = Vinrefe = 0 dB
–18.8
–16.3
–13.8
dBV
Gain change level
GCe
VIN = 0 dB
6.0
7.1
8.4
dB
Gain error
GEe
VIN = –30 dB
–1.5
+0.3
+2.0
dB
Output noise voltage
VNOe
Rg = 620
, f = 20 to 20 kHz
50
100
Vrms
Muting attenuation
ATTe
VIN = +10 dB, 1 kHz BPF
–100
–80
dBV
Crosstalk level
CTe
TX—VIN = –40 dBV, 1 kHz BPF
–83
–65
dBV
[BTL amplifier] RL = 2 k
Maximum output voltage
VObtl
THD = 3%
3.2
4.2
Vp-p
Total harmonic distortion
THDbtl
VIN = –5 dBV
0.4
1.0
%
[Data shaper] VIN = –20 dBV, RL = 100 k
Duty factor
DUTY
43
50
57
%
Dead zone
UNSN
–39.0
–34.5
–30.0
dBV
Output “H” level
VH
2.2
2.38
V
Output “L” level
VL
0.12
0.3
V
[Digital input characteristics]
Input “H” level 1
VIH1
Pins 17, 18, 20, and 22
0.6 VCC
V
Input “L” level 1
VIL2
Pins 17, 18, 20, and 22
0.25 VCC
V
Input “H” level 2
VIH2
Pin 19
1.3
V
Input “L” level 2
VIL2
Pin 19
0.3
V
Electrical Characteristics at Ta = 25°C, VCC = 2.4 V, fIN = 1 kHz
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