BH7800K 데이터 시트보기 (PDF) - ROHM Semiconductor
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BH7800K Datasheet PDF : 13 Pages
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Video ICs
BH7800K
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
〈NTSC Lch〉
1.30MHz insertion loss
1.15MHz attenuation
1.45MHz attenuation
1.70MHz attenuation
〈NTSC Rch〉
1.70MHz insertion loss
1.55MHz attenuation
1.85MHz attenuation
1.30MHz attenuation
〈PAL Lch〉
1.40MHz insertion loss
1.80MHz attenuation
PAL Rch
(LcH, RcH mix input signal level 1320mVP-P (RATIO 1: 1))
A T T NLC – 20.1
– 17.1
– 14.1
dB
1.30MHz + 1.70MHz
FM ALC ON
ATTNL
ATTNLC ATTNLC ATTNLC
1.15 – 9.8
– 5.3
– 2.3
dB
1.15MHz + 1.70MHz
ATTNL
ATTNLC ATTNLC ATTNLC
1.45 – 8.1
– 5.0
– 2.5
dB
1.45MHz + 1.70MHz
ATTNL
—
1.70
—
ATTNLC
– 30.0
dB
1.30MHz + 1.70MHz
A T T NRC – 21.3
– 18.3
– 15.3
dB
1.30MHz + 1.70MHz
FM ALC ON
ATTNR
ATTNRC ATTNRC ATTNRC
1.55 – 8.8
– 5.7
– 3.4
dB
1.55MHz + 1.30MHz
ATTNR
ATTNRC ATTNRC ATTNRC
1.85 – 9.5
– 4.7
– 1.4
dB
1.85MHz + 1.30MHz
ATTNR
—
1.30
—
ATTNRC
– 30.0
dB
1.30MHz + 1.70MHz
A T T PLC – 18.9
– 15.9
– 12.9
dB
1.40MHz + 1.80MHz
ATTPL
—
1.80
—
ATTPLC
– 30.0
dB
1.40MHz + 1.80MHz
1.80MHz insertion loss
A T T PRC – 20.3
– 17.3
– 14.3
dB
1.40MHz + 1.80MHz
1.40MHz attenuation
ATTPR
—
1.40
—
ATTPRC
– 30.0
dB
1.40MHz + 1.80MHz
[FNORM→Hi-Fi recovery delay circuit]
Return delay time
τFNDLY
110
125
140
Delay time from input of FM PB IN
(1.30MHz, 1.70MHz 1: 1 MIX)
mS
1320mVP-P to rise of ENVE OUT
AUDIO HEAD PULSE IN
: f = 30Hz, 5VP-P, rectangular wave
〈Envelope output circuit〉
(INPUT: FM PB IN, OUTPUT: ENVE OUT)
0dB = 1320mVP-P, 1.30MHz & 1.70MHz MIX input
Envelope output level SP0
VENVSP0
—
0
Envelope output level SP1
VENVSP1
2.08
2.58
Envelope output level SP2
VENVSP2
3.70
3.95
Envelope output level EP1
VENVEP1
1.96
2.46
[Control system mode holding voltage]
〈CLOCK IN〉
L mode holding voltage
VH5L
0.0
—
H mode holding voltage
VH5H
2.5
—
100
3.08
4.20
2.96
0.5
VCC
mV
No signal, STANDARD MODE
V
VIN = 0dB, STANDARD MODE
V
VIN = + 10dB, STANDARD MODE
V
VIN = – 4dB, + 4dB MODE
V
V
9
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