參數(shù)資料
型號： TAS5518CPAGR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： GREEN, PLASTIC, TQFP-64
文件頁數(shù)： 90/103頁
文件大小： 2007K
代理商： TAS5518CPAGR
7.22 DRC2 Data Registers (0x9D–0xA1)
7.23 DRC Bypass Registers (0xA2–0xA9)
7.24 8
×2 Output Mixer Registers (0xAA–0xAF)
TAS5518C
8-Channel Digital Audio PWM Processor
www.ti.com
SLES238A – SEPTEMBER 2008 – REVISED JULY 2009
DRC2 applies to channel 8.
Table 7-23. DRC2 Data Register Format
TOTAL
I2C
REGISTER NAME
DESCRIPTION OF CONTENTS
DEFAULT STATE
BYTES
SUBADDRESS
Channel 8 DRC2 energy
u[31:28], E[27:24], E[23:16], E[15:8], E[7:0]
0x00, 0x00, 0x88, 0x3F
0x9D
8
Channel 8 DRC2 (1 – energy)
u[31:28], 1–E[27:24], 1–E[23:16], 1–E[15:8], 1–E[7:0]
0x00, 0x7F, 0x77, 0xC0
Channel 8 DRC2 threshold
u[31:24], u[23:16], T1[15:8], T1[7:0]
0x00, 0x00, 0x00, 0x00
upper 16 bits (T1)
Channel 8 DRC2 threshold
T1[31:24], T1[23:16], T1[15:8], T1[7:0]
0x0B, 0x20, 0xE2, 0xB2
lower 32 bits (T1)
0x9E
16
Channel 8 DRC2 threshold
u[31:24], u[23:16], T2[15:8], T2[7:0]
0x00, 0x00, 0x00, 0x00
upper 16 bits (T2)
Channel 8 DRC2 threshold
T2[31:24], T2[23:16], T2[15:8], T2[7:0]
0x06, 0xF9, 0xDE, 0x58
lower 32 bits (T2)
Channel 8 DRC2 slope (k0)
u[31:28], k0[27:24], k0[23:16], k0[15:8], k0[7:0]
0x00, 0x40, 0x00, 0x00
0x9F
12
Channel 8 DRC2 slope (k1)
u[31:28], k1[27:24], k1[23:16], k1[15:8], k1[7:0]
0x0F, 0xC0, 0x00, 0x00
Channel 8 DRC2 slope (k2)
u[31:28], k2[27:24], k2[23:16], k2[15:8], k2[7:0]
0x0F, 0x90, 0x00, 0x00
Channel 8 DRC2 offset 1 upper u[31:24], u[23:16], O1[15:8], O1[7:0]
0x00, 0x00, 0xFF, 0xFF
16 bits (O1)
Channel 8 DRC2 offset 1 lower
O1[31:24], O1[23:16], O1[15:8], O1[7:0]
0xFF, 0x82, 0x30, 0x98
32 bits (O1)
0xA0
16
Channel 8 DRC2 offset 2 upper u[31:24], u[23:16], O2[15:8], O2[7:0]
0x00, 0x00, 0x00, 0x00
16 bits (O2)
Channel 8 DRC2 offset 2 lower
O2[31:24], O2[23:16], O2[15:8], O2[7:0]
0x01, 0x95, 0xB2, 0xC0
32 bits (O2)
Channel 8 DRC2 attack
u[31:28], A[27:24], A[23:16], A[15:8], A[7:0]
0x00, 0x00, 0x88, 0x3F
Channel 8 DRC2 (1 – attack)
u[31:28], 1–A[27:24], 1–A[23:16], 1–A[15:8], 1–A[7:0]
0x00, 0x7F, 0x77, 0xC0
0xA1
16
Channel 8 DRC2 decay
u[31:28], D[27:24], D[23:16], D[15:8], D[7:0]
0x00, 0x00, 0x00, 0x56
Channel 8 DRC2 (1 – decay)
u[31:28], 1–D[27:24], 1–D[23:16], 1–D[15:8], 1–D[7:0]
0x00, 0x3F, 0xFF, 0xA8
DRC bypass/inline for channels 1, 2, 3, 4, 5, 6, 7, and 8 are mapped into registers 0xA2, 0xA3, 0xA4,
0xA5, 0xA6, 0xA7, 0xA8, and 0xA9, respectively. Eight bytes are written for each channel. Each gain
coefficient is in 28-bit (5.23) format, so 0x0080 0000 is a gain of 1. Each gain coefficient is written as a
32-bit word with the upper 4 bits not used.
To enable DRC for a given channel (with unity gain), bypass = 0x0000 0000 and inline = 0x0080 0000.
To disable DRC for a given channel, bypass = 0x0080 0000 and inline = 0x0000 0000.
Table 7-24. DRC Bypass Register Format
TOTAL
REGISTER NAME
CONTENTS
DEFAULT VALUE
BYTES
Channel bass DRC bypass
u[31:28], bypass[27:24], bypass[23:16], bypass[15:8], bypass[7:0]
0x00, 0x80, 0x00, 0x00
8
Channel DRC inline
u[31:28], inline[27:24], inline[23:16], inline[15:8], inline[7:0]
0x00, 0x00, 0x00, 0x00
The pass-through output mixer setting is:
DAP channel 1 is mapped though the 8×2 crossbar mixer (0xAA) to PWM channel 1
DAP channel 2 is mapped though the 8×2 crossbar mixer (0xAB) to PWM channel 2
DAP channel 3 is mapped though the 8×2 crossbar mixer (0xAC) to PWM channel 3
DAP channel 4 is mapped though the 8×2 crossbar mixer (0xAD) to PWM channel 4
DAP channel 5 is mapped though the 8×2 crossbar mixer (0xAE) to PWM channel 5
Serial-Control Interface Register Definitions
87
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS5518PAG 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
TAS5518PAG 制造商:Texas Instruments 功能描述:Pulse Width Modulation (PWM) Controller
TAS5518PAGG4 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
TAS5518PAGR 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
TAS5518PAGRG4 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube
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