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參數資料
型號： TLV320DAC3100IRHBT
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： DAC WITH PROGRAMMABLE PLL, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數： 84/97頁
文件大小： 1134K
代理商： TLV320DAC3100IRHBT
www.ti.com
SLAS671 – FEBRUARY 2010
6.6
Control Registers, Page 9: DAC Programmable Coefficients RAM Buffer A (65:127)
Default values shown for this page only become valid 100 ms following a hardware or software reset.
Page 9 / Register 0 (0x00): Page Control Register
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D0
R/W
0000 0000
0000 0000: Page 0 selected
0000 0001: Page 1 selected
...
1111 1110: Page 254 selected
1111 1111: Page 255 selected
The remaining page-9 registers are either reserved registers or are used for setting coefficients for the
various filters in the TLV320DAC3101. Reserved registers should not be written to.
The filter-coefficient registers are arranged in pairs, with two adjacent 8-bit registers containing the 16-bit
coefficient for a single filter. The 16-bit integer contained in the MSB and LSB registers for a coefficient is
interpreted as a 2s-complement integer, with possible values ranging from –32,768 to 32,767. When
programming any coefficient value for a filter, the MSB register should always be written first, immediately
followed by the LSB register. Even if only the MSB or LSB portion of the coefficient changes, both
registers should be written in this sequence. Table 6-3 is a list of the page-9 registers, excepting the
previously described register 0.
Table 6-3. Page 9 DAC Buffer A Registers
REGISTER
RESET VALUE
REGISTER NAME
NUMBER
1 (0x01)
XXXX XXXX
Reserved. Do not write to this register.
2 (0x02)
0111 1111
Coefficient N0(15:8) for left DAC-programmable first-order IIR
3 (0x03)
1111 1111
Coefficient N0(7:0) for left DAC-programmable first-order IIR
4 (0x04)
0000 0000
Coefficient N1(15:8) for left DAC-programmable first-order IIR
5 (0x05)
0000 0000
Coefficient N1(7:0) for left DAC-programmable first-order IIR
6 (0x06)
0000 0000
Coefficient D1(15:8) for left DAC-programmable first-order IIR
7 (0x07)
0000 0000
Coefficient D1(7:0) for left DAC-programmable first-order IIR
8 (0x08)
0111 1111
Coefficient N0(15:8) for right DAC-programmable first-order IIR
9 (0x09)
1111 1111
Coefficient N0(7:0) for right DAC-programmable first-order IIR
10 (0x0A)
0000 0000
Coefficient N1(15:8) for right DAC-programmable first-order IIR
11 (0x0B)
0000 0000
Coefficient N1(7:0) for right DAC-programmable first-order IIR
12 (0x0C)
0000 0000
Coefficient D1(15:8) for right DAC-programmable first-order IIR
13 (0x0D)
0000 0000
Coefficient D1(7:0) for right DAC-programmable first-order IIR
14 (0x0E)
0111 1111
Coefficient N0(15:8) for DRC first-order high-pass filter
15 (0x0F)
1111 0111
Coefficient N0(7:0) for DRC first-order high-pass filter
16 (0x10)
1000 0000
Coefficient N1(15:8) for DRC first-order high-pass filter
17 (0x11)
0000 1001
Coefficient N1(7:0) for DRC first-order high-pass filter
18 (0x12)
0111 1111
Coefficient D1(15:8) for DRC first-order high-pass filter
19 (0x13)
1110 1111
Coefficient D1(7:0) for DRC first-order high-pass filter
20 (0x14)
0000 0000
Coefficient N0(15:8) for DRC first-order low-pass filter
21 (0x15)
0001 0001
Coefficient N0(7:0) for DRC first-order low-pass filter
22 (0x16)
0000 0000
Coefficient N1(15:8) for DRC first-order low-pass filter
23 (0x17)
0001 0001
Coefficient N1(7:0) for DRC first-order low-pass filter
24 (0x18)
0111 1111
Coefficient D1(15:8) for DRC first-order low-pass filter
25 (0x19)
1101 1110
Coefficient D1(7:0) for DRC first-order low-pass filter
26–127
0000 0000
Reserved
Copyright 2010, Texas Instruments Incorporated
REGISTER MAP
85
Product Folder Link(s): TLV320DAC3100
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