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參數(shù)資料
| 型號(hào)： | 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(hào)處理器卡座（甲板1片） |
| 文件頁(yè)數(shù)： | 19/73頁(yè) |
| 文件大小： | 524K |
| 代理商： | HA12167FB |
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HA12167FB/HA12169FB
Rev.3, Jun. 1997, page 19 of 73
Operating Mode Control
HA12167FB/HA12169FB provides fully electronic switching circuits. All switches are controlled by serial
data.
Table 2
Threshold Voltage (VTH)
Pin No.
Lo
Hi
Unit
42
–0.2 to 1.5
3.5 to 5.3
V
39, 40, 41
Notes: 1. Voltages shown above are determined by internal circuits of LSI when take pin 47 (DGND pin) as
reference pin. On split supply use, same VTH can be offered by connecting DGND pin to GND
pin.
This means that it can be controlled directly by micro processor.
2. Each pins are on pulled down with 100 k
internal resistor.
Therefore, it will be low-level when each pins are open.
3. Note on serial data inputting
(a)
The clock frequency on CLK must be less than 500 kHz.
(b)
Over shoot level and under shoot level of input signal must be the value shown below.
–0.2 to 1.0
4.0 to 5.3
V
When connecting microcomputer or Logic-IC with HA12167FB/HA12169FB directly, there is
apprehension of rash-current under some transition timming of raising voltage or falling voltage at V
CC
ON/OFF.
For this countermeasure, connect 10 k
to 20 k
resistor with each pins. It is shown in test circuit on this
data sheet.
In case of changing NR-ON/OFF at the C-mode, for the countermeasure of the noise of pop, perform the
following processes.
In case of changing NR-OFF to NR-ON at C-mode. C-mode, NR-OFF
→
B-mode, NR-OFF
→
B-mode,
NR-ON
→
C-mode, NR-ON.
In case of changing NR-ON to NR-OFF at C-mode. C-mode, NR-ON
→
B-mode, NR-ON
→
B-mode,
NR-OFF
→
C-mode, NR-OFF.
Under 5.3 V
Within
–
0.2 V
0
Figure 2 Input Level
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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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