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| 型号： | TAS5518PAGRG4 |
| 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： | 89/105页 |
| 文件大小： | 1514K |
| 代理商： | TAS5518PAGRG4 |
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Serial Control Interface Register Definitions
76
SLES115 — August 2004
TAS5518
Each gain coefficient is in 28-bit (5.23) format so 0x800000 is a gain of 1. Each gain coefficient is written as
a 32-bit word with the upper four bits not used.
Table 619. Contents of One 20-Byte Biquad Filter Register Format (Default = All-pass)
DESCRIPTION
REGISTER FIELD CONTENTS
DEFAULT GAIN COEFFICIENT VALUES
DESCRIPTION
REGISTER FIELD CONTENTS
DECIMAL
HEX
b0 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
6.18 Bass and Treble Bypass Register (0x89 – 0x90, Channels 1 8)
Channels 1, 2, 3, 4, 5, 6, 7, and 8 are mapped into registers 0x89, 0x8A, 0x8B, 0x8C,0x8D, 0x8E, 0x8F, and
0x90. Eight bytes are written for each channel. Each gain coefficient is in 28-bit (5.23) format so 0x800000
is a gain of 1. Each gain coefficient is written as a 32-bit word with the upper four bits not used.
Table 620. Bass and Treble Bypass Register Format (0x890x90)
REGISTER NAME
TOTAL BYTES
CONTENTS
INITIALIZATION VALUE
Channel bass and
treble bypass
8
U 31:28), Bypass (27:24), Bypass (23:16), Bypass (15:8), Bypass (7:0)
0x00, 0x80, 0x00, 0x00
Channel bass and
treble inline
8
U (31:28), Inline (27:24), Inline (23:16), Inline (15:8), Inline (7:0)
0x00, 0x00, 0x00, 0x00
6.19 Loudness Registers (0x91 – 0x95)
Table 621. Loudness Registers Format (0x91 – 0x95)
I2C
SUBADDRESS
TOTAL
BYTES
REGISTER NAME
DESCRIPTION OF CONTENTS
DEFAULT STATE
0x91
4
Loudness Log2 Gain (LG)
U (31:28), LG (27:24), LG (23:16), LG (15:8), LG
(7:0)
0xFF, 0xC0, 0x00, 0x00
0x92
8
Loudness Log2 Offset
(LO)
U (31:24), U (23:16), LO (15:8), LO (7:0)
0x00, 0x00, 0x00, 0x00,
0x92
8
Loudness Log2 LO
LO (31:24), LO (23:16), LO (15:8), LO (7:0)
0x00, 0x00, 0x00, 0x00,
0x93
4
Loudness Gain (G)
U (31:28), G (27:24), G (23:16), G (15:8), G (7:0)
0x00, 0x00, 0x00, 0x00,
0x94
8
Loudness Offset Upper 16
bits (O)
U (31:24), U (23:16), O (15:8), O (7:0)
0x00, 0x00, 0x00, 0x00,
0x94
8
Loudness O Offset Lower
32 bits (O)
O (31:24), O (23:16), O (15:8), O (7:0)
0x00, 0x00, 0x00, 0x00,
Loudness Biquad (b0)
U (31:28), b0 (27:24), b0 (23:16), b0 (15:8), b0 (7:0)
0x00, 0x00, 0xD5, 0x13,
Loudness Biquad (b1)
U (31:28), b1 (27:24), b1 (23:16), b1 (15:8), b1 (7:0)
0x00, 0x00, 0x00, 0x00,
0x95
20
Loudness Biquad (b2)
U (31:28), b2 (27:24), b2 (23:16), b2 (15:8), b2 (7:0)
0x0F, 0xFF, 0x2A, 0xED,
0x95
20
Loudness Biquad (a1)
U (31:28), a1 (27:24), a1 (23:16), a1 (15:8), a1 (7:0)
0x00, 0xFE, 0x50, 0x45,
Loudness Biquad (a2)
U (31:28), a2 (27:24), a2 (23:16), a2 (15:8), a2 (7:0)
0x0F, 0x81, 0xAA, 0x27
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