參數(shù)資料
型號: STA323WTR
廠商: 意法半導(dǎo)體
英文描述: 2.1 HIGH EFFICIENCY DIGITAL AUDIO SYSTEM
中文描述: 2.1高效率數(shù)字音頻系統(tǒng)
文件頁數(shù): 17/41頁
文件大小: 749K
代理商: STA323WTR
17/41
STA323W
Table 12. DDX Output Modes
7.4.2 5.3.2DDX Variable Compensating Pulse Size
The DDX variable compensating pulse size is intended to adapt to different power stage ICs. Contact
Apogee applications for support when deciding this function.
Table 13. DDX Compensating Pulse
7.5 Configuration Register D (Address 03h)
7.5.1 High-Pass Filter Bypass
The STA323W features an internal digital high-pass filter for the purpose of DC Blocking. The purpose of
this filter is to prevent DC signals from passing through a DDX amplifier. DC signals can cause speaker
damage.
7.5.2 De-Emphasis
By setting this bit to HIGH, or one (1), de-emphasis will implemented on all channels. DSPB (DSP Bypass,
Bit D2, CFA) bit must be set to 0 for De-emphasis to function.
OM (1,0)
Output Stage – Mode
00
Not Used
01
Not Used
10
DDX-2060/2100/2160
11
Variable Compensation
CSZ (4…0)
Compensating Pulse Size
00000
0 Clock period Compensating Pulse Size
00001
1 Clock period Compensating Pulse Size
10000
16 Clock period Compensating Pulse Size
11111
31 Clock period Compensating Pulse Size
D7
D6
D5
D4
D3
D2
D1
D0
MME
ZDE
DRC
BQL
PSL
DSPB
DEMP
HPB
0
0
0
0
0
0
0
0
BIT
R/W
RST
NAME
DESCRIPTION
0
R/W
0
HPB
High-Pass Filter Bypass Bit.
0 – AC Coupling High Pass Filter Enabled
1 – AC Coupling High Pass Filter Disabled
BIT
R/W
RST
NAME
DESCRIPTION
1
R/W
0
DEMP
De-emphasis:
0 – No De-emphasis
1 – De-emphasis
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