参数资料
型号: TAS5504PAGRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封装: GREEN, PLASTIC, TQFP-64
文件页数: 18/96页
文件大小: 1216K
代理商: TAS5504PAGRG4
Introduction
17
SLES123 October 2004
TAS5504
76
b
0
28
48
X
76
b
1
28
48
X
76
b
2
28
48
X
Z1
76
48
Magnitude
Truncation
Z1
48
1
28
76
X
a
48
2
28
76
X
a
76
b
0
28
48
X
76
b
1
28
48
X
76
b
2
28
48
X
Z1
76
48
Magnitude
Truncation
Z1
48
1
28
76
X
a
48
2
28
76
X
a
Figure 113. Biquad Filter Structure
All five coefficients for one biquad filter structure are written to one I2C register containing 20 bytes (or five
32-bit words). The structure is the same for all biquads in the TAS5504. Registers 0x51 – 0x88 show all the
biquads in the TAS5504. Note that u(31:28) bits are unused and default to 0x0.
Table 13. Contents of One 20-Byte Biquad Filter Register (Default = All-Pass)
DESCRIPTION
REGISTER FIELD CONTENTS
INITIALIZATION GAIN COEFFICIENT VALUE
DESCRIPTION
REGISTER FIELD CONTENTS
DECIMAL
HEX
bo Coefficient
u(31:28), b0(27:24), b0(23:16), b0(15:8), b0(7:0)
1.0
0x00, 0x80, 0x00, 0x00
b1 Coefficient
u(31:28), b1(27:24), b1(23:16), b1(15:8), b1(7:0)
0.0
0x00, 0x00, 0x00, 0x00
b2 Coefficient
u(31:28), b2(27:24), b2(23:16), b2(15:8), b2(7:0)
0.0
0x00, 0x00, 0x00, 0x00
a1 Coefficient
u(31:28), a1(27:24), a1(23:16), a1(15:8), a1(7:0)
0.0
0x00, 0x00, 0x00, 0x00
a2 Coefficient
u(31:28), a2(27:24), a2(23:16), a2(15:8), a2(7:0)
0.0
0x00, 0x00, 0x00, 0x00
1.7
Bass and Treble Controls
From 32-kHz to 96-kHz data, the TAS5504 has four Bass and Treble tone controls. Each control has a ±18-dB
control range with selectable corner frequencies and 2nd order slopes. These controls operate four channel
groups:
L, R & C (Channels 1, 2, and 3)
Sub (Channel 4)
For 176.4 kHz and 192 kHz data, the TAS5504 has two Bass and Treble tone controls. Each control has a
±18-dB I2C control range with selectable corner frequencies and 2nd order slopes. These controls operate
two channel groups:
L & R
Sub
The bass and treble filters utilize a soft update rate that does not produce artifacts during adjustment.
相关PDF资料
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TAS5504PAGG4 SPECIALTY CONSUMER CIRCUIT, PQFP64
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