參數(shù)資料
型號(hào)： HA12219
廠商： Hitachi,Ltd.
英文描述： Audio Signal Processor for Cassette Deck
中文描述： 音頻信號(hào)處理器卡座
文件頁(yè)數(shù)： 8/29頁(yè)
文件大?。?/td> 169K
代理商： HA12219
HA12219NT
Rev.2, Jul. 1998, page 8 of 29
Operating Mode Control
HA12219NT provides fully electronic switching circuits. And each operating mode control is controlled
by parallel data (DC voltage).
Table 2 shows the control voltage of each control input pin.
Table 2
Control Voltage (Vth)
Pin No.
Lo
Mid
Hi
Unit
Test Condition
18, 20
0.0 to 0.5
—
2.4 to V
CC
V
Input Pin
V
Measure
19
Note:
0.0 to 0.5
1.2 to 1.8
2.4 to V
CC
V
1. Each pin is pulled down with 100 k
internal resistor. 16 to 18 pins are low-level when each pin
is open.
2. Over shoot level and under shoot level of input signal must be the standardized.
(High: Less than V
CC
, Low: More than –0.2 V)
Block Diagram
Figure 2 shows the block diagram.
As this IC is built-in REC return switch, the configuration system can be simple system using a few
external component and the REC/PB head.
About these logics, please look at the Parallel Data Format.
REC-OUT(L)
PB-IN B(L)
B head
A head
REC-IN
Vref
2
PB-OUT
Normal Speed
PB-A
22
15
4
Return SW
B
A
5
PB-IN A(L)
8
7
+
13
10
REC - EQ
Figure 2 Block Diagram (Lch)
相關(guān)PDF資料
PDF描述
HA12219NT Audio Signal Processor for Cassette Deck
HA12220 CD-ROM Drive Head Amplifier IC
HA12220F CD-ROM Drive Head Amplifier IC
HA12226 Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
HA12227F Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA12219NT 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck
HA12220 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Drive Head Amplifier IC
HA12220F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Drive Head Amplifier IC
HA12221F 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Audio Signal Processor for Car Deck (Decode only Dolby B type NR with PB Amp.)
HA12222F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.)
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