參數(shù)資料
型號(hào)： LA8638NV
元件分類： 模擬運(yùn)算功能
英文描述： COMPANDER, PDSO30
封裝： SSOP-30
文件頁(yè)數(shù)： 9/16頁(yè)
文件大?。?/td> 107K
代理商： LA8638NV
No. 6627-2/16
LA8638NV
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
0.76
1.0
mA
[Transmitter block] Vinrefc = –60 dBV = 0 dB, microphone amplifier gain = 40 dB, RL = 15 k
Output level
VOcVIN = Vinrefc = 0 dB
–18.1
–16.1
–14.1
dBV
Gain change level
GCcVIN = –10 dB
3.5
4.0
4.4
dB
Gain error
GEcVIN = –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
Latt
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] Vinrefc = –20 dBV = 0 dB, RL = 15 k
Output level
VOeVIN = Vinrefc = 0 dB
–18.8
–16.3
–13.8
dBV
Gain change level
GCeVIN = 0 dB
6.0
7.1
8.4
dB
Gain error
GEeVIN = –30 dB
–1.5
+0.3
+2.0
dB
Output noise voltage
VNOe
Rg = 620
, f = 20 to 20 kHz
18
40
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 high-level voltage
VH
2.2
2.38
V
Output low-level voltage
VL
0.12
0.3
V
[Digital input characteristics]
Input high-level voltage 1
VIH1
Pins 17, 18, 20, and 22
0.6 VCC
V
Input low-level voltage 1
VIL2
Pins 17, 18, 20, and 22
0.25 VCC
V
Input high-level voltage 2
VIH2
Pin 19
1.3
V
Input low-level voltage 2
VIL2
Pin 19
0.3
V
Electrical Characteristics at Ta = 25°C, VCC = 2.4 V, fIN = 1 kHz
Parameter
Symbol
Conditions
Ratings
Unit
Recommended power supply voltage
VCC
2.4
V
Operating power supply voltage range
VCCop
1.8 to 5.5
V
Operating Conditions at Ta = 25°C
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