參數(shù)資料
型號(hào): BH7802K
廠商: Rohm CO.,LTD.
英文描述: Single chip Hi-Fi audio signal processor
中文描述: 單芯片Hi - Fi音頻信號(hào)處理器
文件頁(yè)數(shù): 9/14頁(yè)
文件大?。?/td> 183K
代理商: BH7802K
9
Video ICs
BH7802K
NTSC Lch
BPF L / R level difference NTSC
V
BPFN
dB
– 5.0
0.0
5.0
After automatic adjustment, NTSC
f = 1.505MHz, V
IN
= 200mV
P-P
After automatic adjustment, PAL
f = 1.605MHz, V
IN
= 200mV
P-P
BPF L / R level difference PAL
V
BPFP
dB
– 5.0
0.0
5.0
FM BPF
(
INPUT: FM PB IN, OUTPUT: BPF MONITOR L / R)
Lch, Rch mix input signal level 660mV
P-P
(RATIO 1: 1)
1.30MHz insertion loss
ATT
NLC
dB
– 14.1
– 11.1
– 8.1
1.30MHz + 1.70MHz
FM ALC ON
1.15MHz attenuation
dB
1.15MHz + 1.70MHz
ATT
NLC
– 9.8
ATT
NLC
– 8.1
ATT
NL
1.15
ATT
NLC
– 5.3
ATT
NLC
– 5.0
ATT
NLC
– 2.3
ATT
NLC
– 2.5
ATT
NLC
– 30.0
1.45
1.45MHz attenuation
dB
1.45MHz + 1.70MHz
ATT
NL
1.70
1.70MHz attenuation
dB
1.30MHz + 1.70MHz
ATT
NL
NTSC Rch
PAL Lch
1.70MHz insertion loss
ATT
NRC
dB
– 15.3
– 12.3
– 9.3
1.30MHz + 1.70MHz
FM ALC ON
1.40MHz insertion loss
ATT
PLC
dB
– 12.9
– 9.9
– 6.9
1.40MHz + 1.80MHz
1.55MHz attenuation
dB
1.55MHz + 1.30MHz
ATT
NRC
– 8.8
ATT
NRC
– 9.5
ATT
NR
1.55
ATT
NRC
– 5.7
ATT
NRC
– 4.7
ATT
NRC
– 3.4
ATT
NRC
– 1.4
ATT
NRC
– 30.0
1.85
1.85MHz attenuation
dB
1.85MHz + 1.30MHz
ATT
NR
1.30
1.30MHz attenuation
dB
1.30MHz + 1.70MHz
ATT
NR
1.80
1.80MHz attenuation
dB
1.40MHz + 1.80MHz
ATT
PL
ATT
PLC
– 30.0
PAL Rch
FNORM
Hi-Fi recovery delay circuit
1.80MHz insertion loss
ATT
PRC
dB
– 14.3
– 11.3
– 8.3
1.40MHz + 1.80MHz
Envelope output level SP0
V
ENVSP0
mV
0
100
No signal, STANDARD MODE
Envelope output level SP1
V
ENVSP1
V
2.08
2.58
3.08
V
IN
= 0dB, STANDARD MODE
Envelope output level SP2
V
ENVSP2
V
3.70
3.95
4.20
V
IN
= + 10dB, STANDARD MODE
Envelope output level EP1
V
ENVEP1
V
1.96
2.46
2.96
V
IN
= – 4dB, + 4dB MODE
Return delay time
τ
FNDLY
ms
110
125
140
Delay time from input of FM PB IN
(1.30MHz, 1.70MHz 1: 1 MIX)
660mV
P-P
to rise of ENVE OUT
AUDIO HEAD PULSE IN
: f = 30Hz, 5V
P-P
, rectangular wave
1.40
1.40MHz attenuation
dB
1.40MHz + 1.80MHz
ATT
PR
ATT
PRC
– 30.0
Envelope output circuit
(INPUT: FM PB IN, OUTPUT: ENVE OUT)
0dB = 660mV
P-P
, 1.3MHz&1.70MHz MIX input
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
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