ZHCSDC1D September 2013 – October 2018 TAS5766M , TAS5768M
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3 Feature Description
- 7.4
Device Functional Modes
- 7.4.1 Device Protection System
- 7.4.2 Reset and System Clock Functions
- 7.4.3 System Clock PLL Mode
- 7.4.4 Clock Generation and PLL
- 7.4.5 PLL Calculation
- 7.4.6 Audio Data Interface
- 7.4.7
TAS576xM Audio Processing Options
- 7.4.7.1 Overview
- 7.4.7.2 miniDSP Instruction Register
- 7.4.7.3 Digital Output
- 7.4.7.4 Software
- 7.4.7.5 Process Flow
- 7.4.7.6 Zero Data Detect
- 7.4.7.7 Power Save Modes
- 7.4.7.8 XSMT Pin (Soft Mute/Soft Un-Mute)
- 7.4.7.9 External Power Sense Undervoltage Protection Mode
- 7.4.7.10 Recommended Power Down Sequence
- 7.5 Programming
- 7.6 Register Maps
- 8 Applications and Implementation
- 9 Power Supply Recommendations
- 10Layout
-
11Register Map Information
- 11.1
Detailed Register Map Descriptions
- 11.1.1 Register Map Summary
- 11.1.2
Page 0 Registers
- 11.1.2.1 Page 0 / Register 1 (Hex 0x01)
- 11.1.2.2 Page 0 / Register 2 (Hex 0x02)
- 11.1.2.3 Page 0 / Register 3 (Hex 0x03)
- 11.1.2.4 Page 0 / Register 4 (Hex 0x04)
- 11.1.2.5 Page 0 / Register 7 (Hex 0x07)
- 11.1.2.6 Page 0 / Register 8 (Hex 0x08)
- 11.1.2.7 Page 0 / Register 9 (Hex 0x09)
- 11.1.2.8 Page 0 / Register 10 (Hex 0x0A)
- 11.1.2.9 Page 0 / Register 12 (Hex 0x0C)
- 11.1.2.10 Page 0 / Register 13 (Hex 0x0D)
- 11.1.2.11 Page 0 / Register 20 (Hex 0x14)
- 11.1.2.12 Page 0 / Register 21 (Hex 0x15)
- 11.1.2.13 Page 0 / Register 22 (Hex 0x16)
- 11.1.2.14 Page 0 / Register 23 (Hex 0x17)
- 11.1.2.15 Page 0 / Register 24 (Hex 0x18)
- 11.1.2.16 Page 0 / Register 27 (Hex 0x1B)
- 11.1.2.17 Page 0 / Register 28 (Hex 0x1C)
- 11.1.2.18 Page 0 / Register 29 (Hex 0x1D)
- 11.1.2.19 Page 0 / Register 30 (Hex 0x1E)
- 11.1.2.20 Page 0 / Register 32 (Hex 0x20)
- 11.1.2.21 Page 0 / Register 33 (Hex 0x21)
- 11.1.2.22 Page 0 / Register 34 (Hex 0x22)
- 11.1.2.23 Page 0 / Register 35 (Hex 0x23)
- 11.1.2.24 Page 0 / Register 36 (Hex 0x24)
- 11.1.2.25 Page 0 / Register 37 (Hex 0x25)
- 11.1.2.26 Page 0 / Register 40 (Hex 0x28)
- 11.1.2.27 Page 0 / Register 41 (Hex 0x29)
- 11.1.2.28 Page 0 / Register 42 (Hex 0x2A)
- 11.1.2.29 Page 0 / Register 43 (Hex 0x2B)
- 11.1.2.30 Page 0 / Register 44 (Hex 0x2C)
- 11.1.2.31 Page 0 / Register 59 (Hex 0x3B)
- 11.1.2.32 Page 0 / Register 65 (Hex 0x41)
- 11.1.2.33 Page 0 / Register 66 (Hex 0x42)
- 11.1.2.34 Page 0 / Register 82 (Hex 0x52)
- 11.1.2.35 Page 0 / Register 83 (Hex 0x53)
- 11.1.2.36 Page 0 / Register 84 (Hex 0x54)
- 11.1.2.37 Page 0 / Register 85 (Hex 0x55)
- 11.1.2.38 Page 0 / Register 86 (Hex 0x56)
- 11.1.2.39 Page 0 / Register 87 (Hex 0x57)
- 11.1.2.40 Page 0 / Register 90 (Hex 0x5A)
- 11.1.2.41 Page 0 / Register 91 (Hex 0x5B)
- 11.1.2.42 Page 0 / Register 92 (Hex 0x5C)
- 11.1.2.43 Page 0 / Register 93 (Hex 0x5D)
- 11.1.2.44 Page 0 / Register 94 (Hex 0x5E)
- 11.1.2.45 Page 0 / Register 95 (Hex 0x5F)
- 11.1.2.46 Page 0 / Register 108 (Hex 0x6C)
- 11.1.2.47 Page 0 / Register 118 (Hex 0x76)
- 11.1.2.48 Page 0 / Register 119 (Hex 0x77)
- 11.1.2.49 Page 0 / Register 120 (Hex 0x78)
- 11.1.2.50 Page 0 / Register 121 (Hex 0x79)
- 11.1.3 Page 1 Registers
- 11.1.4 Page 44 Registers
- 11.1
Detailed Register Map Descriptions
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
- DCA|48
訂購信息
7.4.2.2 System Clock Input
The TAS576xM requires a system clock to operate the digital interpolation filters and advanced segment DAC modulators. The system clock is applied at the SCLK input (pin 12) and supports up to 50MHz. The TAS576xM system-clock detection circuit automatically senses the system-clock frequency. The Smart AMP processing block only supports 44.1 kHz and 48kHz sampling rates even though the hardware supports all the common audio sampling frequencies in the bands of 8 kHz, 16 kHz, (32 kHz–44.1 kHz–48kHz), (88.2 kHz–96 kHz), (176.4 kHz–192 kHz), and 384 kHz with ±4% tolerance.
Values in the parentheses are "grouped" when detected, e.g. 88.2 kHZ and 96 kHz are detected as "double rate", 32 kHz, 44.1 kHz and 48 kHz will be detected as "single rate". The sampling frequency detector sets the clock for the digital filter, Delta Sigma Modulator (DSM) and the Negative Charge Pump (NCP) automatically. Table 2 shows examples of system clock frequencies for common audio sampling rates.
SCLK rates that are not common to standard audio clocks, between 1 MHz and 50 MHz, are only supported in software mode by configuring various PLL and clock-divider registers. This programmability allows the device to become a clock master and drive the host serial port with LRCLK and BCLK, from a non-audio related clock (for example, using 12 MHz to generate 44.1 kHz (LRCLK) and 2.8224 MHz (BCLK) )
Figure 33 shows the timing requirements for the system clock input. For optimal performance, use a clock source with low phase jitter and noise.
Table 2. System Master Clock Inputs for Audio Related Clocks
| SAMPLING FREQUENCY | SYSTEM CLOCK FREQUENCY (fSCLK) (MHz) | ||||||
|---|---|---|---|---|---|---|---|
| 128 fs | 192 fs | 256 fs | 384 fs | 512 fs | 768 fs | 1024 fs | |
| 44.1 kHz | 5.6488 | 8.4672 | 11.2896 | 16.9344 | 22.5792 | 33.8688 | 45.1584 |
| 48 kHz | 6.1440 | 9.2160 | 12.2880 | 18.4320 | 24.5760 | 36.8640 | 49.1520 |
Figure 33. Timing Requirement for SCLK Input Table 3. Timing Requirements for SCLK Input
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| tSCY | System clock pulse cycle time | 20 | 1000 | ns |
| tSCLKH | System clock pulse width, High | 8 | ns | |
| tSCLKL | System clock pulse width, Low | 9 | ns | |