bh7802k ROHM Co. Ltd., bh7802k Datasheet - Page 9

• Manufacturer Part Number: bh7802k
• Description: Single Chip Hi-fi Audio Signal Processor
• Manufacturer: ROHM Co. Ltd.

BPF L / R level difference NTSC
BPF L / R level difference PAL
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
1.80MHz insertion loss
1.40MHz attenuation
Return delay time
0dB = 660mV
Envelope output level SP0
Envelope output level SP1
Envelope output level SP2
Envelope output level EP1
FM BPF INPUT: FM PB IN, OUTPUT: BPF MONITOR L / R)
Lch, Rch mix input signal level 660mV
FNORM Hi-Fi recovery delay circuit
Envelope output circuit (INPUT: FM PB IN, OUTPUT: ENVE OUT)
Video ICs
Parameter
P-P
, 1.3MHz&1.70MHz MIX input
Symbol
ATT
ATT
ATT
ATT
V
V
V
V
P-P
ATT
ATT
ATT
ATT
ATT
ATT
ATT
ATT
ENVSP0
ENVSP1
ENVSP2
ENVEP1
V
V
FNDLY
BPFN
BPFP
(RATIO 1: 1)
NRC
PRC
NLC
1.15
1.45
1.70
1.55
1.85
1.30
PLC
1.80
1.40
NR
NR
NR
PR
NL
NL
NL
PL
– 15.3
– 12.9
– 14.3
– 14.1
ATT
ATT
ATT
ATT
– 5.0
– 5.0
– 9.8
– 8.8
– 9.5
– 8.1
Min.
2.08
3.70
1.96
110
—
—
—
—
—
NRC
NRC
NLC
NLC
– 12.3
– 11.1
– 11.3
ATT
ATT
ATT
ATT
– 5.3
– 5.0
– 5.7
– 4.7
– 9.9
Typ.
2.58
3.95
2.46
125
0.0
0.0
—
—
—
—
0
NRC
NRC
NLC
NLC
– 30.0
– 30.0
– 30.0
– 30.0
ATT
ATT
ATT
ATT
ATT
ATT
ATT
ATT
– 8.3
– 8.1
– 2.3
– 2.5
– 9.3
– 3.4
– 1.4
– 6.9
Max.
3.08
4.20
2.96
140
100
5.0
5.0
NRC
NRC
NRC
PRC
NLC
NLC
NLC
PLC
Unit
mV
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ms
V
V
V
After automatic adjustment, NTSC
f = 1.505MHz, V
After automatic adjustment, PAL
f = 1.605MHz, V
1.30MHz + 1.70MHz
FM ALC ON
1.15MHz + 1.70MHz
1.45MHz + 1.70MHz
1.30MHz + 1.70MHz
1.30MHz + 1.70MHz
FM ALC ON
1.55MHz + 1.30MHz
1.85MHz + 1.30MHz
1.30MHz + 1.70MHz
1.40MHz + 1.80MHz
1.40MHz + 1.80MHz
1.40MHz + 1.80MHz
1.40MHz + 1.80MHz
Delay time from input of FM PB IN
660mV
AUDIO HEAD PULSE IN
: f = 30Hz, 5V
No signal, STANDARD MODE
V
V
V
(1.30MHz, 1.70MHz 1: 1 MIX)
IN
IN
IN
= 0dB, STANDARD MODE
= + 10dB, STANDARD MODE
= – 4dB, + 4dB MODE
P-P
to rise of ENVE OUT
P-P
Conditions
, rectangular wave
IN
IN
= 200mV
= 200mV
BH7802K
P-P
P-P
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