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參數(shù)資料
| 型號(hào)： | LA7256 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | High-Fidelity Audio Signal Record/Playback Processing Circuit for VCR Products(用于高逼真度VCR的音頻信號(hào)錄音/重放處理芯片) |
| 中文描述： | 高保真音頻信號(hào)記錄/回放處理電路的錄像機(jī)產(chǎn)品（用于高逼真度錄像機(jī)的音頻信號(hào)錄音/重放處理芯片） |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大小： | 139K |
| 代理商： | LA7256 |
Continued from preceding page.
Test Circuit Diagram
No. 4896-3/9
LA7256
Parameter
Symbol
Conditions
min
typ
max
Unit
Over-record hold voltage
V
11M
The pin 11 DC voltage for over-record mode
1.5
3.0
V
Over-record current ratio
I
O-OV
Pin 9 input = 180 mVp-p, f = 1.5 MHz,
pin 11 = middle level: measure the pin 16 output current
1.7
2.2
2.7
dB
S-VHS hold voltage
V
11H
The pin 11 DC voltage for S-VHS mode
3.5
V
CC
V
S-VHS current ratio
I
O-SV
Pin 9 input = 180 mVp-p, f = 1.5 MHz, pin 11 = high:
measure the pin 16 output current
–2.0
–2.6
–3.2
dB
Record mute hold voltage 1
V
4L
V
4H
The pin 4 DC voltage when record muting is off
0
1.0
V
Record mute hold voltage 2
The pin 4 DC voltage when record muting is on
3.0
V
CC
V
Mute attenuation
I
OR
, M
U
Pin 9 input = 180 mVp-p, f = 1.5 MHz, pin 4 = high:
measure the pin 16 output current
–40
dB
Record hold voltage
V
5H
The pin 5 voltage required to hold record mode
3.0
V
CC
V
[Built-in Buffer]
Buffer I/O DC offset
V
BUF
f
BUF
–10
10
mV
Buffer frequency characteristics
Pin 9 input = 180 mVp-p, f = 1/10 MHz
–1
1
dB
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