參數(shù)資料
型號: HA12165
廠商: Hitachi,Ltd.
英文描述: Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
中文描述: 音頻信號處理器為汽車甲板和卡座(杜比B型鉛放大器星期日)
文件頁數(shù): 18/66頁
文件大?。?/td> 578K
代理商: HA12165
HA12163 Series
Rev.4, Jun. 1999, page 18 of 66
6. Note on Connecting with Tape Head to IC
This IC has no internal resistor to give the DC bias current to equalizer amp, therefore the DC bias
current will give through the head. This IC provides the Vref buffer output pin for Rch and Lch
separately (has two Vref terminal). In case of use that the Rch and Lch reference of head are
connected commonly, please use one of Vref terminals of IC (47 pin or 52 pin) for head reference.
If both 47 pin and 52 pin of IC are connected, rush current give the great damage to IC. The
application circuit is shown in figure 3.
56
+
R/F
55
54
53
52
51
50
49
48
47
46
45
44
43
V (R)
GND
GND
V (L)
R/F
+
Figure 3 Application Circuit
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HA12166F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
HA12167FB 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip)
HA12167FB/HA12169FB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HA12169FB 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip)
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