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參數(shù)資料
| 型號(hào)： | TDA9614H |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Audio processor for VHS hi-fi and linear audio(應(yīng)用于VHS高保真和線性音頻的音頻處理器) |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁數(shù)： | 16/60頁 |
| 文件大?。?/td> | 570K |
| 代理商： | TDA9614H |
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1995 Mar 21
16
Philips Semiconductors
Preliminary specification
Audio processor for VHS hi-fi
and linear audio
TDA9614H
Table 11
Bits RN and IPN
Notes
1.
Bit RN is output at LINREC (pin 32), which is used to drive an external (high voltage) head switch and possibly the
bias oscillator. The two loop-through modes are equal in signal flow, however they differ in the state of the head
switches (the internal switch at PBIN [pin 34] and the external head switch driven by pin LINREC).
Loop-through R is equal to record except for the RECOUT output (pin 33) which is muted.
2.
Table 12
Bit NOM
Note
1.
Audio coming from the linear audio circuit is muted, either the signal from tape in playback or the loop-through signal
in record or loop-through modes. To avoid clicks when changing the mode of the linear audio circuit to or from
playback, the output should be muted shortly, using this bit.
Table 13
Bit LP
RN
(1)
IPN
MODE
DESCRIPTION
0
0
1
1
0
1
0
1
playback
loop-through P
loop-through R
(2)
record
linear audio circuit in playback mode
linear audio circuit in loop-through mode (playback ready) [por]
linear audio circuit in loop-through mode (record ready)
linear audio circuit in record mode
NOM
MODE
DESCRIPTION
0
1
mute
(1)
output from linear audio circuit is muted [por]
LP
MODE
DESCRIPTION
0
SP
Record and playback equalizing set for Standard Play [por].
Record equalization switch at EQSW (pin 30) and playback equalization switch at RESSW
(pin 35) are open (high impedance). The internal playback equalizing is 3180 and 120
μ
s.
It can be changed to 2544 and 96
μ
s by selecting test number 31 (see Section 6.12).
Record and playback equalizing set for Long Play.
1
LP
Record equalization switch at EQSW (pin 30) and playback equalization switch at RESSW
(pin 35) are closed. The internal playback equalizing is 3180 and 170
μ
s. It can be
changed to 2731 and 146
μ
s by selecting test number 31 (see Section 6.12).
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| TDA9615 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Audio processor for VHS hi-fi |
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| TDA9800T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:VIF-PLL demodulator and FM-PLL detector |
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