參數(shù)資料
型號(hào): LA7790M
廠商: Sanyo Electric Co.,Ltd.
英文描述: QPSK Transmitter for Cable TV
中文描述: 調(diào)制變送器有線電視
文件頁數(shù): 3/14頁
文件大?。?/td> 174K
代理商: LA7790M
No. 5689-3/14
LA7790M
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Band switch 2 “H” level
f(V
11
) = 25 MHz
Band switch 2 “L” level
f(V
11
) = 12.5 MHz
RF output amplifier
V
12H
Note 7: V
17
= V
21
= V
CC
,
V
20
= V
23
= GND, S1 = A
Note 7: V
17
= V
21
= V
CC
,
V
20
= V
23
= GND, S1 = A
4
V
V
12L
1
V
Maximum output level
V
1
max
Note 8: V
12
= V
17
= V
21
= V
CC
,
V
20
= V
23
= GND, SG3 = –6 dBm, S1 = A
7
10
13
dBm
V
1(HD2)
Note 8: V
12
= V
17
= V
21
= V
CC
,
V
20
= V
23
= GND, SG3 = –6 dBm, S1 = A
40
dBc
Maximum output distortion
V
1(HD3)
40
dBc
Muting
Muting on voltage
V
23H
V
12
= V
17
= V
21
= V
CC
,
V
20
= GND, S1 = B
V
12
= V
17
= V
21
= V
CC
,
V
20
= GND, S1 = B
Note 9: V
23
= 1 V
4 V
V
12
= V
17
= V
21
= V
CC
, V
20
= GND, S1 = B
4
V
Muting off voltage
V
23L
1
V
Muting attenuation
V
1(mute)
70
dB
Power save function
Power save on voltage
V
20H
V
20L
I
1
4
V
Power save off voltage
1
V
Power save current
Note 10: V
20
= 4 V
0
0.1
mA
Continued from preceding page.
Pin Assignment
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