參數(shù)資料
型號: UDA1321
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: USB-Digital To Analog Converters(通用串行總線-數(shù)模轉(zhuǎn)換器)
中文描述: 0.055 MHz, MICROCONTROLLER, PDIP32
文件頁數(shù): 15/44頁
文件大?。?/td> 280K
代理商: UDA1321
1998 Oct 06
15
Philips Semiconductors
Preliminary specification
Universal Serial Bus (USB)
Digital-to-Analog Converter (DAC)
UDA1321
T
REBLE CONTROL
The treble control is available for the master channel of the UDA1321. Treble can be regulated in three modes: minimum,
flat and maximum mode. The preferred mode is selected at start-up of the device (configuration map). The corner
frequency is 3000 Hz for the minimum mode and 1500 Hz for the maximum mode. The treble range is from 0 to 6 dB in
steps of 2 dB. It should be noted that the negative treble values as defined in the “USB Device Class Definition for Audio
Devices”are not supported by the UDA1321; the 0 dB value is returned as 0 dB. Table 4 gives the mapping of the
bTreble
value upon the actual treble setting of the USB DAC.
Table 4
Treble control characteristics; note 1
Note
1.
The 2 dB step is not supported in the UDA1321/N101; see Chapter “USB-DAC UDA1321/N101
(Firmware sw 2.1.1.7)”.
bTREBLE
TREBLE USB
SIDE (dB)
TREBLE USB DAC (dB)
B7
B6
B5
B4
B3
B2
B1
B0
minimum
flat
maximum
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
...
5.25
...
7.25
...
9.25
...
31.75
0
0
0
2
0
2
4
0
4
0
0
0
1
0
1
0
1
6
0
6
0
0
0
1
1
1
0
1
6
0
6
0
0
1
0
0
1
0
1
6
0
6
0
1
1
1
1
1
1
1
6
0
6
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