參數(shù)資料
型號(hào): TDA9870A
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): 消費(fèi)家電
英文描述: Digital TV Sound Processor DTVSP
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP64
封裝: SHRINK, PLASTIC, DIP
文件頁(yè)數(shù): 14/88頁(yè)
文件大?。?/td> 362K
代理商: TDA9870A
1998 Aug 10
14
Philips Semiconductors
Product specification
Digital TV Sound Processor (DTVSP)
TDA9870A
6.2.12
O
VERVIEW OF
DSP
FUNCTIONS
Table 4
Overview of DSP functions
FUNCTION
EXPERT
MODE
PARAMETER
VALUE
UNIT
Bass control for loudspeaker and
headphone output
yes
control range
resolution
resolution at frequency
control range
resolution
resolution at frequency
control range
resolution
resolution at frequency
control range
resolution
resolution at frequency
corner frequency
control range
resolution
mute position at step
processing time
12 to +15
1
40
12 to +12
1
14
0 to +18
1
40
0 to +20
2
20
350
83 to +24
1
10101100
32
dB
dB
Hz
dB
dB
kHz
dB
dB
Hz
dB
dB
Hz
Hz
dB
dB
Treble control for loudspeaker
and headphone output
yes
Contour for loudspeaker output
yes
Bass boost for loudspeaker
output
yes
Volume control for each separate
channel in loudspeaker and
headphone output
no
Soft-mute for loudspeaker and
headphone output
Spatial effects
Pseudo stereo
Beeper additional to the signal in
the loudspeaker and headphone
channel
no
ms
yes
yes
anti-phase crosstalk positions
90 degree phase shift at frequency
beep frequencies
control range
resolution
mute position at step
step width
AVL output level for an input level
between 0 and
29 dB full scale
attack time
decay time constant
3 dB lower corner frequency of DSP 10
1 dB bandwidth of DSP
control range
resolution
control range
resolution
mute position at step
control positions
30, 40 and 52
150, 200 and 300
see Section 10.3.38
0 to
93
3
00100000
quasi continuously
23
%
Hz
yes
dB
dB
Automatic Volume Level (AVL)
yes
dBFS
10
2, 4 and 8
ms
s
Hz
kHz
dB
dB
dB
dB
General
no
14.5
15 to +15
1
15 to +15
1
00010000
0, 3, 6 and 9
Level adjust I
2
S1 and I
2
S2 inputs
yes
Level adjust I
2
S1 and I
2
S2
outputs
yes
Level adjust analog crossbar path
no
dB
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