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): 17/60頁
文件大?。?/td> 570K
代理商: TDA9614H
1995 Mar 21
17
Philips Semiconductors
Preliminary specification
Audio processor for VHS hi-fi
and linear audio
TDA9614H
6.7
Main select byte
Table 14
Bits of main select byte
Table 15
Bits IS2 to IS0; note 1
Notes
1.
With bits IS2 to IS0, the stereo input signal is selected which is led to the hi-fi processing. One out of five stereo
sources can be selected. The five stereo inputs differ in their connectivity; with bits NS1 and NS0 tuner left
(TUNL; pin 2) can be selected as linear audio input source, with bits LOS1 and LOS0 Normal, Ext2 and Ext3 are
directly connectable to Line out and to DOS1 and DOS0 Tuner, Ext1 and Ext3 are directly connectable to decoder
out (2nd Line Out).
Remark:
when using the selections Normal or Dub Mix be aware of signal loops (which should be avoided) because
this can lead to large audio oscillations.
The selection Dub Mix is a special function in which a mono signal derived from the Ext3 inputs
(
1
2
EXT3L +
1
2
EXT3R) is led to the left input and a mono signal derived from the audio FM output (
1
2
L +
1
2
R) is led
to the right input channel. This function can be used for audio dubbing using the volume controls as a mixing desk.
2.
3.
Table 16
Bits NS1 and NS0; note 1
Note
1.
With bits NS1 and NS0 the input signal is selected for the linear audio circuit. When a stereo input source is selected,
a mono signal is made by adding the left and right channel. Furthermore two independent selections can be made
(the mono input SAP or the left channel of tuner e.g. for dual language). If in the volume mode the built-in AGC circuit
is switched off by using bit AGCN, the audio level can be controlled by the left and right volume controls
(VLx and VRx).
BIT
DESCRIPTION
IS2 to IS0
NS1 and NS0
OSL
OSR
OSN
Input Select 2 to Input Select 0; see Table 15
Normal Select 1 and Normal Select 0; see Table 16
Output Select Left; see Table 17
Output Select Right; see Table 17
Output Select Normal; see Table 17
IS2
IS1
IS0
MODE
SELECTED INPUT SOURCE
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Tuner
Cinch
Ext1
Ext2
Ext3
SAP
Normal
(2)
Dub Mix
(2)(3)
TUNL and TUNR [por]
CINL and CINR
EXT1L and EXT1R (e.g. SCART1; TV connector)
EXT2L and EXT2R (e.g. SCART2; decoder connector)
EXT3L and EXT3R (e.g. front cinch)
additional mono input (SAP; pin 1)
output from linear audio (LININ; pin 28)
mixing of EXT3 input with hi-fi output signal
NS1
NS0
MODE
DESCRIPTION
0
0
1
1
0
1
0
1
Input
Volume
SAP
Tuner L
linear audio input source is equal to hi-fi input [por]
linear audio input source is equal to hi-fi input, inclusive volume control
additional mono input (SAP; pin 1) is selected
left channel of tuner input is selected
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