BH7802K Ver la hoja de datos (PDF) - ROHM Semiconductor
Número de pieza
componentes Descripción
Fabricante
BH7802K Datasheet PDF : 14 Pages
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Video ICs
BH7802K
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
〈OUTPUTSW: Hi-Fi / NORMAL MIX MODE〉
(INPUT: TU IN L / R, LINE1 IN L / R, LINE2 IN L / R, BS IN L / R, NORMAL IN OUTPUT: LINE OUT)
Hi-Fi / NORMAL MIX level
VHNMIX – 11.7 – 10.2 – 8.7
dBV
INPUT condition 1
NORMAL IN: – 20dBV
〈MODEM REC MODE〉
(INPUT: TUNER IN L / R, LINE1 IN L / R, LINE2 IN L / R, BS IN L / R OUTPUT: FM REC OUT)
NTSC carrier frequency
Lch
Rch
fNOL
fNOR
1.2905
1.6920
1.2975
1.6990
1.3045
1.7060
MHz
MHz
No input, after automatic adjustment
PAL carrier frequency
Lch
fPOL
Rch
fPOR
1.3910
1.7925
1.3980
1.7995
1.4050
1.8065
MHz
MHz
No input, after automatic adjustment
Frequency deviation
Lch
DEVL
Rch DEVR
43.0
49.0
55.0
± kHz
INPUT condition 1
44.5
50.5
56.5
± kHz
Lch DEVMax.L 118
140
162
± kHz
Maximum frequency deviation
INPUT condition 3 (f = 10kHz)
Rch DEVMax.R 118
140
162
± kHz
FM output level
Carrier 2nd harmonic
Carrier 3rd harmonic
Lch
Rch
Lch
Rch
Lch
Rch
VOFML
VOFMR
f2L
f2R
f3L
f3R
300
355
410
mVP-P FM OUT SW: FM L mode
310
365
420
mVP-P FM OUT SW: FM R mode
— – 53.0 – 40.0
— – 48.0 – 40.0
— – 52.0 – 40.0
— – 55.0 – 40.0
dB Spectrum ratio of 2nd harmonic with respect to
fundamental
dB Lch: FM L mode, Rch: FM R mode
dB Spectrum ratio of 3rd harmonic with respect to
fundamental
dB Lch: FM L mode, Rch: FM R mode
FM MIX ratio (FM MIX1 mode)
fLR
– 14.5 – 12.5 – 10.5
dB Spectrum ratio 1.30MHz / 1.70MHz
〈MODEM PB MODE〉 (INPUT: FM PB IN, OUTPUT: LINE OUT L / R)
Carrier setting resistor, after BPF f0 djustmen, VIN = 660mVP-P, 1.30MHz, 1.70MHz MIX IN
Lch
Demodulation output level 1
Rch
VODL
VODR
– 12.7
– 12.7
– 10.2
– 10.2
– 7.7
– 7.7
dBV DEVL = ± 50.0kHz, f = 1kHz
dBV DEVR = ± 50.0kHz, f = 1kHz
Lch
Demodulation output level 2
Rch
Lch
Demodulation distortion
Rch
VODL2
VODR2
THDDL
THDDR
VODL
– 10.0
VODR
– 10.0
—
—
VODL
– 7.8
VODR
– 7.8
0.12
0.13
VODL
– 5.6
VODR
– 5.6
0.35
0.35
dBV DEVL = ± 50.0kHz, f = 10kHz
dBV DEVR = ± 50.0kHz, f = 10kHz
%
DEVL = ± 50.0kHz, f = 1kHz, ∗1
%
DEVR = ± 50.0kHz, f = 1kHz, ∗1
Demodulation noise level
Lch
Rch
VONDL
VONDR
— – 98.0 – 92.0
— – 98.0 – 92.0
dBV Unmodulated
dBV ∗2
〈Recording→playback overall characteristics〉 (EE···INPUT: LINE IN L / R, OUTPUT: LINE OUT L / R)
(PB···INPUT: FM PB IN, OUTPUT: LINE OUT L / R)
Lch
Line output recording
/ playback level difference
Rch
VRPL
VRPR
– 1.2
– 1.2
0.0 + 1.2
0.0 + 1.2
Carrier frequency, after adjusting BPF
dB EE mode: INPUT condition 1
PB mode: FM PB IN = 660mVP-P
f = 1.30MHz, 1.70MHz 1: 1 MIX,
The difference between the EE and PB line out
dB levels when input is DEV = DEVL, R
(the frequency deviation given above)
∗1: B.W. = 0.4 to 30kHz
∗2: DIN AUDIO
8
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