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參數資料
| 型號： | UDA1350ATS |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | IEC 958 audio DAC |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封裝： | PLASTIC, SSOP-28 |
| 文件頁數： | 17/32頁 |
| 文件大?。?/td> | 124K |
| 代理商： | UDA1350ATS |
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2000 Mar 29
17
Philips Semiconductors
Preliminary specification
IEC 958 audio DAC
UDA1350ATS
8.6.8
W
RITABLE REGISTERS
8.6.8.1
Restoring L3 defaults
By writing to the 7FH register, all L3 control values are
restored to their default values. Only the L3 interface is
affected, the system will not be reset. Consequently
readable registers, which are not reset, can be affected.
8.6.8.2
Power-on
A 1-bit value to switch the DAC on and off.
Table 10
Power-on setting
8.6.8.3
Filter mode selection
A 2-bit value to program the mode for the sound
processing filters of bass boost and treble.
Table 11
Filter mode settings
8.6.8.4
Treble
A 2-bit value to program the treble setting in combination
with the filter mode settings. At f
s
= 44.1 kHz the
3 dB
point for minimum setting is 3.0 kHz and the
3 dB point
for maximum setting is 1.5 kHz. The default value is ‘00’.
Table 12
Treble settings
8.6.8.5
Bass boost
A 4-bit value to program the bass boost setting in
combination with the filter mode settings. At f
s
= 44.1 kHz
the
3 dB point for minimum setting is 250 Hz and the
3 dB point for maximum setting is 300 Hz. The default
value is ‘0000’.
Table 13
Bass boost settings
8.6.8.6
De-emphasis
A 2-bit value to enable the digital de-emphasis filter.
Table 14
De-emphasis selection
PON
FUNCTION
0
1
power-down
power-on (default setting)
M1
M0
FUNCTION
0
0
1
1
0
1
0
1
flat (default setting)
minimum
maximum
TR1
TR0
LEVEL (dB)
FLAT
MIN.
MAX.
0
0
1
1
0
1
0
1
0
0
0
0
0
2
4
6
0
2
4
6
BB3
BB2
BB1
BB0
LEVEL (dB)
FLAT
MIN.
MAX.
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
8
10
12
14
16
18
18
18
18
18
18
18
0
2
4
6
8
10
12
14
16
18
20
22
24
24
24
24
DE1
DE0
FUNCTION
0
0
1
1
0
1
0
1
other (default setting)
f
s
= 32.0 kHz
f
s
= 44.1 kHz
f
s
= 48.0 kHz
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