BH7800K中文资料PDF规格书
BH7800K规格书详情
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.
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 construct 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 provided.
4) The PNR processor and FM modulator / demodulator 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 compensation 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.
Applications
VCRs
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ROHM |
23+ |
QFP |
12000 |
全新原装假一赔十 |
询价 | ||
ROHM |
0410+ |
QFP-44 |
450 |
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询价 | ||
ROHM/罗姆 |
22+ |
QFP |
50000 |
只做原装正品,假一罚十,欢迎咨询 |
询价 | ||
ROHM |
20+ |
QFP |
500 |
样品可出,优势库存欢迎实单 |
询价 | ||
ROHM |
22+ |
QFP |
2500 |
强调现货,随时查询! |
询价 | ||
进口原装 |
23+ |
SOP |
1059 |
全新原装现货 |
询价 | ||
ROHM |
21+ |
QFP |
1265 |
原装现货假一赔十 |
询价 | ||
ROHM |
23+ |
原厂封装 |
9896 |
询价 | |||
ROHM |
23+ |
SMD |
750 |
专营高频管模块,全新原装! |
询价 | ||
ROHM |
21+ |
QFP |
6500 |
全新原装现货 |
询价 |