參數(shù)資料
型號(hào)： SRC4193
英文描述： 192kHz Stereo Asynchronous Sample Rate Converters
中文描述： 192kHz立體聲異步采樣速率轉(zhuǎn)換器
文件頁(yè)數(shù)： 19/31頁(yè)
文件大?。?/td> 1033K
代理商： SRC4193
SRC4192, SRC4193
SBFS022A
19
www.ti.com
The bit clock is either an input or output at BCKI (pin 5). In
slave mode, BCKI is configured as an input pin, and may
operate at rates from 32f
S
to 128f
S
,with a minimum of one
clock cycle per data bit. In Master mode, BCKI operates at a
fixed rate of 64f
S
.
The left/right word clock, LRCKI (pin 6), may be configured
as an input or output pin. In Slave mode, LRCKI is an input
pin, while in Master mode LRCKI is an output pin. In either
case, the clock rate is equal to f
S
, the input sampling
frequency. The LRCKI duty cycle is fixed to 50% for Master
mode operation.
Table 2 illustrates data format selection for the input port. For
the SRC4192, the IFMT0 (pin 10), IFMT1 (pin 11), and
IFMT2 (pin 12) inputs are utilized to set the input port data
format. For the SRC4193, the IFMT[2:0] bits in Control
Register 3 are used to select the data format.
OUTPUT PORT OPERATION
The audio output port is a four-wire synchronous serial
interface that may operate in either Slave or Master mode.
The SDOUT output (pin 23) is the serial audio data output.
Audio data is output at this pin in one of four data formats:
Philips I
2
S, Left Justified, Right Justified, or TDM. The audio
data word length may be 16-, 18-, 20-, or 24-bits. For all word
lengths, the data is triangular PDF dithered from the internal
28-bit data path. The data formats (with the exception of
TDM mode) are shown in Figure 6, while critical timing
parameters are shown in Figure 7 and listed in the Electrical
Characteristics table. The TDM format and timing are shown
in Figures 14 and 15, respectively, while examples of stan-
dard TDM configurations are shown in Figures 16 and 17.
Left Channel
(a) Left Justified Data Format
(b) Right Justified Data Format
Right Channel
LRCKO
BCKO
SDOUT
MSB
LSB
LSB
MSB
LRCKO
BCKO
SDOUT
MSB
MSB
LSB
LSB
(c) I2S Data Format
1/f
S
LRCKO
BCKO
SDOUT
MSB
LSB
MSB
LSB
t
SOH
t
DOPD
t
SOL
t
DOH
LRCKO
BCKO
SDOUT
IFMT2
IFMT1
IFMT0
INPUT PORT DATA FORMAT
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
24-Bit Left Justified
24-Bit I2S
Unused
Unused
16-Bit Right Justified
18-Bit Right Justified
20-Bit Right Justified
24-Bit Right Justified
TABLE 2. Input Port Data Format Selection.
FIGURE 6. Output Data Formats.
FIGURE 7. Output Port Timing.
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SRC4193IDB 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風(fēng)格:SMD/SMT
SRC4193IDBG4 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風(fēng)格:SMD/SMT
SRC4193IDBR 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風(fēng)格:SMD/SMT
SRC4193IDBRG4 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風(fēng)格:SMD/SMT
SRC4194 制造商:BB 制造商全稱(chēng):BB 功能描述:4-Channel, Asynchronous Sample Rate Converter
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