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參數(shù)資料
| 型號(hào)： | TAS5508BPAGR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁(yè)數(shù)： | 22/103頁(yè) |
| 文件大?。?/td> | 1198K |
| 代理商： | TAS5508BPAGR |
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2.3.2.2 48-Bit 25.23 Number Format
223 Bit
S_xxxx_xxxx_xxxx_xxxx_xxxx_xxxx.xxxx_xxxx_xxxx_xxxx_xxxx_xxx
20 Bit
216 Bit
222 Bit
Sign Bit
223 Bit
21 Bit
210 Bit
M0007-02
(1 or 0) y 223 + (1 or 0) y 222 + … + (1 or 0) y 20 + (1 or 0) y 21 + … + (1 or 0) y 223
223 Bit
222 Bit
20 Bit
21 Bit
223 Bit
M0008-02
TAS5508B
8-Channel Digital Audio PWM Processor
www.ti.com
SLES162C – DECEMBER 2005 – REVISED JULY 2009
concatenated with the hex value of the fractional part of the gain coefficient to form the 32-bit I2C
coefficient. The reason is that the 28-bit coefficient contains 5 bits of integer, and thus the integer part of
the coefficient occupies all of one hex digit and the most significant bit of the second hex digit. In the same
way, the fractional part occupies the lower three bits of the second hex digit, and then occupies the other
five hex digits (with the eighth digit being the zero-valued most significant hex digit).
All level adjustment and threshold coefficients are 48-bit coefficients using a 25.23 number format.
Numbers formatted as 25.23 numbers have 25 bits to the left of the decimal point and 23 bits to the right
of the decimal point. This is shown in Figure 2-7.
Figure 2-7. 25.23 Format
Figure 2-8 shows the derivation of the decimal value of a 48-bit 25.23 format number.
Figure 2-8. Conversion Weighting Factors—25.23 Format to Floating Point
Two 32-bit words must be sent over the I2C bus to download a level or threshold coefficient into the
TAS5508B. The alignment of the 48-bit, 25.23 formatted coefficient in the 8-byte (two 32-bit words) I2C
word is shown in Figure 2-9.
Description
25
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TAS5508BPAG | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TAS5508PAG | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TAS5508PAGRG4 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TAS5508PAGR | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TAS5508PAGG4 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5508BPAGRG4 | 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(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5508C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:8-Channel Digital Audio PWM Processor |
| TAS5508CPAG | 功能描述:音頻 DSP 8Ch 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(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5508CPAGR | 功能描述:音頻 DSP 8Ch 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(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS5508CPAGR | 制造商:Texas Instruments 功能描述:IC Digital Audio PWM Processor 64-TQFP |
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