參數(shù)資料
型號(hào)： HA12207
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)： 8/27頁(yè)
文件大?。?/td> 148K
代理商： HA12207
HA12207NT
Rev.3, Jun. 1999, page 8 of 27
Operating Mode Control
HA12207NT 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
Hi
Unit
Test Condition
16, 17
0.0 to 1.0
4.0 to V
CC
V
Input Pin
Measure
V
18
Note:
0.0 to 3.0
4.0 to V
CC
V
1. Each pin is pulled down with 100k
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 –0.2V)
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.
As this IC adopted Hi-z SW of REC-EQ output and the input mute system, it realizes REC mute
attenuation and pop-noise reduction securing in REC mute.
About these logics, please look at the Parallel Data Format.
PB IN(A)
PB IN(B)
RECOUT
Hi-Z SW
RETURN SW
B
A
B head
A head
Vref
REC IN
21
Normal Speed
PB - A
+
–
–
+
10
13
2
4
5
8
7
PBOUT
15
REC - EQ
Figure 2 Block Diagram (Lch)
相關(guān)PDF資料
PDF描述
HA12207NT 150000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN
HA12209 Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
HA12209F Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
HA12211 Audio Signal Processor for Cassette Deck (Deck 1 Chip)
HA12211NT Audio Signal Processor for Cassette Deck (Deck 1 Chip)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA12207NT 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck
HA12209 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
HA12209F 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
HA12211 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip)
HA12211NT 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip)
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