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BH7800K 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BH7800K은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 BH7800K 자료 제공

부품번호 BH7800K 기능
기능 Single chip Hi-Fi audio signal processor
제조업체 ROHM Semiconductor
로고 ROHM Semiconductor 로고


BH7800K 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



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BH7800K 데이터시트, 핀배열, 회로
Video ICs
Single chip Hi-Fi audio signal
processor
BH7800K
The BH7800K incorporates the functions for a VHS audio signal processing system on a single chip. The circuits on
the chip are a peak-noise reduction processor (PNR), an FM modulator / demodulator circuit, an I / O switcher, an
automatic FM detector circuit, an FM bandpass filter, and a regulator circuit.
Applications
VCRs
Features
1) Operates off dual ± power supply which allows a
large reduction in the number of coupling capacitors
required. A built-in regulator makes it easy to con-
struct a power supply system.
2) A two-line SSB (Synchronized Serial Bus) control
decoder circuit is provided, allowing the various IC
modes to be set using serial control.
3) A four line input switcher is included (tuner, BS, and
line 1 / 2). The output switcher can switch between
STEREO, LEFT, and RIGHT, and Hi-Fi, MIX, and
NORMAL, and a BS MONITOR function is also pro-
vided.
4) The PNR processor and FM modulator / demodula-
tor circuit have reversed characteristics at recording
and playback. In addition, the adjustment for carrier
frequency and FM deviation / playback level are
common.
5) The built-in bandpass filter excels at attenuation of
other channels, and can be directly coupled to the
playback amplifier. The FM recording output block
has a high-performance low-pass filter to produce
sine wave output.
6) Slope-control-type FM-switching-noise compensa-
tion circuit.
7) Envelope detector circuit and noise-detector-type
automatic FM detector circuit.
8) VCO that uses the color signal sub-carrier frequency
fSC (NTSC: 3.59545MHz, PAL: 4.433619MHz) and
auto-adjusting BPF circuit ensure stable adjustment
with no fluctuation due to mounting stress or time.
Absolute maximum ratings (Ta = 25°)
Parameter
Symbol
Limits
Unit
VCC 18, 36pin ··························· 6.0
V
Applied voltage
VEE 39pin ······························ – 6.0
VIN 5, 6, 32pin ························ 6.5
V
V
Power dissipation
VIN Pins other than the above ··· 6.0
V
Pd
850
mW
Operating temperature
Topr
– 10 ~ + 70
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
Reduced by 8.5mW for each increase in Ta of 1°C over 25°C when mounted on a 70mm × 70mm, t = 1.6mm glass epoxy board.
1




BH7800K pdf, 반도체, 판매, 대치품
Video ICs
BH7800K
Input / output circuits
TUNER L / R / M IN (2, 1, 3pin) BS L / R IN (44, 43pin) LINE1 L / R IN (41, 40pin) LINE2 L / R IN (34, 33pin)
VCC
– 2.0V
(2, 3, 33, 34, 40,
41, 43, 44pin)
1
150k
3k
2.0V
LINE L / R OUT (30, 29pin)
50
25k 330
11.56k
50
FM REC OUT (21pin)
200
VCC
(29pin)
30
26k
30k
VEE
GND
VCC
VEE
GND
MIX OUT (28pin)
200
28
200
5k
47k
FM PB IN (13pin)
3.5V
VCC
VEE
GND
VCC
200
3p 8k
21
VEE
GND
25k 25k
12.5k
20p 2k
PB
100k
13
VEE
GND
4

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BH7800K 전자부품, 판매, 대치품
Video ICs
BH7800K
Parameter
Symbol Min. Typ. Max. Unit
Conditions
[REGULATOR]
Quiesent current (positive supply) EE
Quiesent current (positive supply) PB
Quiesent current (negative supply) EE
Quiesent current (negative supply) PB
IqP EE
IqP PB
IqM EE
IqM PB
30.0
40.0
– 20.0
– 22.0
40.0
54.0
– 15.0
– 16.0
53.0
72.0
– 11.0
– 12.0
mA
EE MODE, after carrier frequency
adjustment with no input
mA
PB MODE, carrier frequency adjustment
FNORM, after BPF adjustment
mA
EE MODE, after carrier frequency
adjustment with no input
mA
PB MODE, carrier frequency adjustment
FNORM, after BPF adjustment
Regulator input voltage (positive)
VCC
4.75
5.10
5.45
V
Regulator input voltage (negative)
VEE – 5.35 – 5.00 – 4.65
V
[EE THROUGH] (INPUT: TU IN L / R, LINE1 IN L / R, LINE2 IN L / R, BS IN L / R OUTPUT: LINE OUT L / R)
Line output level
VOEE
– 11.4 – 10.2
– 9.0
dBV INPUT condition 1
Channel balance (L / R)
Distortion
Maximum output level
CBEE
THDEE
VOMEE
– 0.8
9.0
0.0
0.017
10.7
0.8
0.10
dB INPUT condition 1
% INPUT condition 1,1
dBV THD = 1%,1
ALC level
ALC distortion
Output residual noise
Crosstalk
Muting level
VALC
THDALC
VONEE
CTEE
MTEE
– 3.8
– 1.8
0.03
– 94.0
– 88.0
– 103
+ 0.2
0.25
– 86.0
– 75.0
– 90
dBV
INPUT condition 2
ALC ON
%
INPUT condition 2,1
ALC ON
dBV Relevant input shorted to GND,2
dBV
Relevant input: shorted to GND,2
Non-relevant input: Input condition 2,2
dBV INPUT condition 2,2
(INPUT: TU L / R / M IN, BS L / R IN, LINE1 L / R IN, LINE2 L / R IN OUTPUT: NORMAL OUT)
Normal out output level
VONORM
– 21.5
– 20.0
– 18.5
dBV
INPUT condition 1
L & R input together,1
[BS / L2 THROUGH] (INPUT: BS / LINE2 L / R IN
Output level
VOBS
VOL2
Distortion
THDBS
THDL2
Output residual noise
VONBS
VONL2
OUTPUT: LINE OUT L / R)
– 11.4 – 10.2
– 9.0
0.005
0.08
— – 99.0 – 86.0
dBV VIN = – 20.0dBV
% VIN = – 20.0dBV,1
dBV BS IN pin shorted to GND,2
[LINE AMP] (INPUT: NORMAL IN OUTPUT: LINE OUT L / R)
Line amplifier gain1
VOLINE1
+ 9.0
+ 9.8
+ 10.6
dB VIN = – 20dBV
[MIX AMP] (INPUT: TU IN L / R, LINE1 IN L / R, LINE2 IN L / R, BS IN L / R OUTPUT: MIX OUT)
Output level
VOMIX
– 7.2
– 6.0
– 4.8
dBV
INPUT condition 1
L & R input together
Distortion
THDMIX
0.08
0.50
%
INPUT condition 1
L & R input together,1
MIX ALC level
1: B.W. = 0.4 to 30kHz
2: DIN AUDIO
VALCMIX
– 4.2
– 2.7
– 1.2
dBV
INPUT condition 2
L & R input together
7

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관련 데이터시트

부품번호상세설명 및 기능제조사
BH7800K

Single chip Hi-Fi audio signal processor

ROHM Semiconductor
ROHM Semiconductor

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