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参数资料
| 型号： | LA8638NV |
| 元件分类： | 模拟运算功能 |
| 英文描述： | COMPANDER, PDSO30 |
| 封装： | SSOP-30 |
| 文件页数： | 3/16页 |
| 文件大小： | 107K |
| 代理商： | LA8638NV |
No. 6627-11/16
LA8638NV
Continued from preceding page.
Pin Number
Pin Name
Pin Voltage
Equivalent Circuit
Description
25
CMP-RCT
Full-wave rectifier output for compressor
block (AC smoothing)
Indeterminate
(when there is
no signal)
25
VREF
IN
VCC
15k
15k
+
–
A13537
26
MIC-OUT
Microphone amplifier output
VCC/2
27
26
VCC
TO CMP IN
500
28
500
+
–
A13538
30
TX-LVL-ADj
Pin for setting amplification for transmitter
output level switching
VCC/2
IN
30
29k
20k
+
–
A13539
27
MIC-IN2
Microphone amplifier negative input
VCC/2
28
MIC-IN1
Microphone amplifier positive input
VCC/2 power
supply
10
0
20
0
–20
–40
–60
–80
–100
–160
–120
–140
–100
–80
–40
–60
0
–20
–50
–60
–70
–80
–90
–100
–110
–10
–20
–30
–40
–50
–60
0.1
23
5
7 1.0
23
5
7 10
23
5
–60
–50
–40
–30
–10
–20
0
7
5
6
4
3
2
1
0
13
26
5
47
VCC= 2.4V
fin=1kHz
VCC= 2.4V
1kHz - BPF
no signal
I/O Characteristics
Crosstalk Characteristics
Input level, VIN — dBV
Splatter Filter Frequency Characteristics
Input level, VIN — dBV
Current Drain —. VCC
Frequency, f — kHz
Power supply voltage, VCC — V
Output
level,
V
O
—
dBV
Response
—
dB
Crosstalk
level,
CT
—
dBV
Current
drain,
I
CC
—
mA
VCC = 2.4 V; resistance at pin 24 = 4.3 k
TX-OUT
(pin
23)
TX-DT-OUT
(pin
23)
RX-OUT
(pin
10)
RX → TX
(pin 23)
TX-MUTE
(pin 23)
TX
→ RX (pin 10)
RX-MUTE
(pin 10)
BTL on
BTL off
Standby
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