- 您現(xiàn)在的位置：買賣IC網 > PDF目錄378466 > CXA1597P (Sony Corporation) Recording Equalizer Amplifier for Stereo Cassette Decks(立體聲盒式錄音機錄音均衡器) PDF資料下載
參數(shù)資料
| 型號： | CXA1597P |
| 廠商： | Sony Corporation |
| 英文描述： | Recording Equalizer Amplifier for Stereo Cassette Decks(立體聲盒式錄音機錄音均衡器) |
| 中文描述： | 錄制立體聲放大器均衡盒式橋面（立體聲盒式錄音機錄音均衡器） |
| 文件頁數(shù)： | 12/22頁 |
| 文件大小： | 296K |
| 代理商： | CXA1597P |
– 12 –
CXA1597M/P
Here, R
4
= 5.5k
, R
7
= 34k
, and R
8
= 4.8k
. Therefore, A
1
and A
2
take on the following values.
A
1
= 0.861 (times) = –1.30 (dB); A
2
= 0.433 (times) = –7.26 (dB)
The difference between A
1
and A
2
is approximately 6 dB, so that 6 dB boost can be applied for low frequency
boost. The boost frequency response can be freely set with the value of the external C
1
capacitor.
f
2
f
1
G
Frequency [Hz]
6dB
oct
A
1
A
2
Fig. 3. CXA1597 low frequency boost frequency response
3. Recording mute function
The CXA1597 recording mute function is implemented by using a built-in recording mute circuit which varies
the recording equalizer amplifier gain according to the magnitude of the DC voltage applied to the REC
MUTE pin (Pin 15) just like an electronic volume control. For this reason, any desired soft mute (gradual
signal attenuation without distortion) or fader (fade in/out) can be freely set depending on momentary
changes in the DC voltage applied to the REC MUTE pin (Pin 15).
The CXA1597 recording mute circuit operation is such that the reference voltage source used to generate the
control currents (IGL, IGH, and IGP) to control each gain (G
L
, G
H
, and G
P
) shown in Fig. 1 is varied by the
voltage input to the REC MUTE pin (Pin 15), so that the recording signal is attenuated while maintaining the
respective gain ratios. Eventually, when the recording signal is completely muted, only the I-V amplifier in the
final stage is connected to the output pin (REC OUT). Therefore, the noise of the monolithic filter consisting of
each "voltage
→
current converter circuit" and "multiplier circuit" is attenuated simultaneously with the
recording signal. At this point in time, the I-V amplifier in the final stage is functioning almost as a buffer,
providing a significant amount of mute. Fig. 4 illustrates the recording mute waveforms.
Fig. 4. Recording mute waveform
相關PDF資料 |
PDF描述 |
|---|---|
| CXA1598M | Recording Equalizer Amplifier for Stereo Cassette Decks(立體聲盒式錄音機錄音均衡放大器) |
| CXA1598S | Recording Equalizer Amplifier for Stereo Cassette Decks(立體聲盒式錄音機錄音均衡放大器) |
| CXA1598 | Recording Equalizer Amplifier for Stereo Cassette Decks |
| CXA1599Q | 1-Chip Cassette Deck IC(單片盒式錄音機芯片) |
| CXA1635 | STEREO PRE-AMPLIFIER/POWER-AMPLIGIER WITH 3V GOVERNOR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CXA1598 | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Recording Equalizer Amplifier for Stereo Cassette Decks |
| CXA1598M | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Recording Equalizer Amplifier for Stereo Cassette Decks |
| CXA1598M/S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Recording Equalizer Amplifier for Stereo CassetteDecks |
| CXA1598S | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Recording Equalizer Amplifier for Stereo Cassette Decks |
| CXA1599Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:1-chip Cassette Deck |
發(fā)布緊急采購，3分鐘左右您將得到回復。