参数资料
型号: LA7256
元件分类: 音频/视频放大
英文描述: 2 CHANNEL, AUDIO PREAMPLIFIER, PDIP24
封装: SDIP-24
文件页数: 3/9页
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
V11M
The pin 11 DC voltage for over-record mode
1.5
3.0
V
Over-record current ratio
IO-OV
Pin 9 input = 180 mVp-p, f = 1.5 MHz,
1.7
2.2
2.7
dB
pin 11 = middle level: measure the pin 16 output current
S-VHS hold voltage
V11H
The pin 11 DC voltage for S-VHS mode
3.5
VCC
V
S-VHS current ratio
IO-SV
Pin 9 input = 180 mVp-p, f = 1.5 MHz, pin 11 = high:
–2.0
–2.6
–3.2
dB
measure the pin 16 output current
Record mute hold voltage 1
V4L
The pin 4 DC voltage when record muting is off
0
1.0
V
Record mute hold voltage 2
V4H
The pin 4 DC voltage when record muting is on
3.0
VCC
V
Mute attenuation
IOR, MU
Pin 9 input = 180 mVp-p, f = 1.5 MHz, pin 4 = high:
–40
dB
measure the pin 16 output current
Record hold voltage
V5H
The pin 5 voltage required to hold record mode
3.0
VCC
V
[Built-in Buffer]
Buffer I/O DC offset
V
BUF
–10
10
mV
Buffer frequency characteristics
fBUF
Pin 9 input = 180 mVp-p, f = 1/10 MHz
–1
1
dB
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