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參數資料
| 型號： | LA70050W |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, QFP-48 |
| 文件頁數： | 10/15頁 |
| 文件大小： | 641K |
| 代理商： | LA70050W |
LA70050W
No.A0215-4/15
PB Mode ATF
Test Point
Ratings
Parameter
Symbol
IN
OUT
Conditions
min
typ
max
Unit
465kHz bandpass filter
characteristics 1
GLBPF1
T17
T15
The ratio of the VLBPF output to the input
when VIN = 15mVp-p, f = 465kHz.
34
37
40
dB
465kHz bandpass filter
characteristics2
GLBPF2
T17
T15
The ratio of the VLBPF output to the input
when VIN = 15mVp-p, f = 697.5kHz.
-40
-30
dB
697.5kHz bandpass filter
characteristics 1
GHBPF1
T17
T14
The ratio of the VLBPF output to the input
when VIN = 15mVp-p, f = 697.5kHz.
34
37
40
dB
697.5kHz bandpass filter
characteristics2
GHBPF2
T17
T14
The ratio of the VLBPF output to the input
when VIN = 15mVp-p, f = 465kHz.
-40
-30
dB
ATF-F0 characteristics 1
ATF1
T17
T15
With VIN = 15mVp-p and the input frequency swept,
measure the frequency at which the output level is the
maximum.
430
465
500
kHz
ATF-F0 characteristics 2
ATF2
T17
T14
With VIN = 15mVp-p and the input frequency swept,
measure the frequency at which the output level is the
maximum.
652.5
697.5
742.5
kHz
ATF-F0 characteristics 3
ATF3
T17
T14
T15
With VIN = 15mVp-p and the input frequency swept,
measure the 465kHz and 697.5kHz bandpass filter F0
frequency difference.
192.5
232.5
272.5
kHz
ATF-F0 characteristics 4
ATF4
T17
T14
T15
With VIN = 6mVp-p and the input frequency swept,
measure the 465kHz and 697.5kHz gain difference for the
465 kHz and 697.5 kHz bandpass filters.
-2.5
0.0
2.5
dB
ATF-AMP characteristics 1
GATF1
T17
T10
The T10 voltage (with T13 at 3V) when a 15mVp-p,
465kHz sine wave and a 7mVp-p, 687.5kHz sine wave
are mixed and input to T17.
0.2
0.5
0.8
V
ATF-AMP characteristics 2
GATF2
T17
T10
The T10 voltage under the same conditions as above
when T13 is set to 1V.
0.5
0.8
1.1
V
ATF-AMP characteristics 3
GATF3
T17
T10
The T10 voltage (with T13 at 3V) when a 7mVp-p,
465kHz sine wave and a 15mVp-p, 697.5 kHz sine wave
are mixed and input to T17.
2.8
3.1
3.4
V
ATF-AMP characteristics 4
GATF4
T17
T10
The T10 voltage under the same conditions as above
when T13 is set to 1V.
2.0
2.3
2.6
V
ATF output voltage 1
VATF1
T17
T10
The output voltage (with T13 open)
with a VIN = 15mVp-p, f = 465kHz input.
0.3
0.6
0.9
V
ATF output voltage 2
VATF2
T17
T10
The output voltage (with T13 open)
with no input.
1.2
1.5
1.8
V
ATF output voltage 3
VATF3
T17
T10
The output voltage (with T13 open)
with a VIN = 15mVp-p, f = 697.5kHz input.
2.2
2.5
2.8
V
REC (Recording) mode
Test Point
Ratings
Parameter
Symbol
IN
OUT
Conditions
min
typ
max
Unit
Record mode current drain
ICCR
The current drawn by pins 6, 21, and 34
25
35
45
mA
Record current level 1
IREC1
T8
T46B
to
T47B
The output current for VIN = 0/3V, f = 5MHz input. *
17
20
23
mAp-p
Record current level 2
IREC2
T8
T42B
to
T43B
The output current for VIN = 0/3V, f = 5MHz input. *
17
20
23
mAp-p
Record current level 3
IREC3
T8
T38B
to
T39B
The output current for VIN = 0/3V, f = 5MHz input. *
17
20
23
mAp-p
Difference of gain
between channel
Gir1
20log(IREC1/IREC3) *
-1.0
0.0
+1.0
dB
Difference of gain
between mode
Gir2
20log(IREC1/IREC2) *
-1.0
0.0
+1.0
dB
Record current control
characteristics 1
IRCTL1
T8
T46B
to
T47B
The output current level when the current between T7
and ground is 80
A.
22
25
28
mAp-p
Record current control
characteristics 2
IRCTL2
T8
T46B
to
T47B
The output current level when the current between T7
and ground is 50
A.
12
15
18
mAp-p
* Test is performed with a 15k
resistor added between pin T7 and ground.
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