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| 型号： | TAS5086DBTR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| 封装： | GREEN, TSSOP-38 |
| 文件页数： | 3/47页 |
| 文件大小： | 814K |
| 代理商： | TAS5086DBTR |
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SERIAL DATA INTERFACE
I
2C SERIAL CONTROL INTERFACE
B0048-01
(L'+R')/2
Format
Channel
1–6
Channel
1–6
1–5
Down-
mix
SDIN1
PWM_1
PWM_2
PWM_3
PWM_4
PWM_5
PWM_6
1LF
2RF
3LS
4RS
5C
0x20
0x21
0x25
L'
R'
L'
R'
0x04
SDIN2
SDIN3
SDIN4
MUX
0x21
Ch-6Processing
MUX
Downmix
SDIN4
PWM
MUX
SDOUT
I S
2
0x07– 0x0D
0x03
VOL
SEL
VOL
MUX
www.ti.com ................................................................................................................................................... SLES131C – FEBRUARY 2005 – REVISED JUNE 2008
Serial data is input on SDIN1, SDIN2, SDIN3, and SDIN4. The PWM outputs and downmix are derived from
SDIN1, SDIN2, and SDIN3. SDIN4 is a selectable pass-through signal that is available at SDOUT as an I2S
output. The TAS5086 accepts 32-, 44.1-, 48-, 88.2-, 96-, 176.4-, and 192-kHz serial data in 16-, 20-, or 24-bit,
left-justified, right-justified, and I2S serial data formats.
Serial data is output on SDOUT. The SDOUT data format is I2S 24-bit at the same data rate as the input. The
SDOUT output is synchronized to use the SCLK and LRCLK signals. There is a 1- to 2.5-LRCLK frame delay
from the input data to the output data, depending on the input serial data format. The SDOUT output has no
I2C-controllable functions. It is always operational.
The parameters of this clock and serial data interface input format are I2C configurable.
The TAS5086 has an I2C serial control slave interface to receive commands from a system controller. The serial
control interface supports both normal-speed (100-kHz) and high-speed (400-kHz) operations without wait states.
As an added feature, this interface operates even if MCLK is absent.
The serial control interface supports both single-byte and multi-byte read and write operations for status registers
and the general control registers associated with the PWM.
The I2C interface supports a special mode that permits I2C write operations to be broken up into multiple-data
write operations that are multiples of 4 data bytes. These are 6-, 10-, 14-, 18-, ... etc., -byte write operations that
are composed of a device address, read/write bit, subaddress, and any multiple of 4 bytes of data. This permits
the system to write large register values incrementally without blocking other I2C transactions.
Figure 6 shows the data flow and control through the TAS5086. The major I2C registers are shown above each
applicable block (e.g., 0x04 is the serial data format control register).
Figure 6. TAS5086 Data Flow Diagram With I2C Registers
Copyright 2005–2008, Texas Instruments Incorporated
11
Product Folder Link(s): TAS5086
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