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參數(shù)資料
| 型號： | HA12167FB |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| 中文描述： | 音頻信號處理器卡座（甲板1片） |
| 文件頁數(shù)： | 31/73頁 |
| 文件大?。?/td> | 524K |
| 代理商： | HA12167FB |
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HA12167FB/HA12169FB
Rev.3, Jun. 1997, page 31 of 73
60
55
50
45
40
35
0
10
20
30
B_DAC step
40
50
60
70
R
ADJ
= 33 k (Normal)
R
ADJ
= 24 k (Chrome)
R
ADJ
= 20 k (Metal)
E_DAC = 0 step
V
CC
= 14 V
R
FM
= 100 k
R
FQ
= 51 k
R
F/Q
= 51 k
R
GH
= 33 k
R
GL
= 33 k
R
’
GP
= 510 k
E
Figure 14 Equalizer Peak Gain vs. DAC Step Characteristics (2)
When the (variable) width of the DAC step is to be changed, the gain at step 0 or at step 63 must be
changed. The step 0 gain can be changed using R’
GP
as shown in figure 13. Also, R’
GP
can be switched
using the tape selector, as shown in figure 15. However, it is necessary to take into account that the value
of R
ADJ
, which sets the step 63 gain, is also used for the output bias. When the load resistance on pin 33 is
R
L
, the following formula gives the output bias, V
BMAX
.
V
BMAX
= 2.4
×
R
L
/ R
ADJ
Therefore, it is possible to compensate the output bias, V
BMAX
for the R
ADJ
setting by changing R
L
.
Note:
R
ADJ
should be in the range 16 k
to 75 k
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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) |
| HA-1217 | 制造商:NEL 制造商全稱:Nel Frequency Controls,inc 功能描述:TTL Compatible Enable/Disable |
| HA12170NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dolby B- and C-Type Noise Reduction System |
| HA12173 | 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/C-type NR with PB Amp) |
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