參數(shù)資料
型號(hào)： PCM1755DBQR
英文描述： 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
中文描述： 24位192千赫采樣增強(qiáng)的多級(jí)Δ-Σ，音頻數(shù)字模擬轉(zhuǎn)換器
文件頁(yè)數(shù)： 14/33頁(yè)
文件大小： 309K
代理商： PCM1755DBQR
PCM1753
PCM1754
PCM1755
SLES092A – OCTOBER 2003 – REVISED AUGUST 2004
www.ti.com
14
AUDIO SERIAL INTERFACE
The audio serial interface for the PCM1753/54/55 consists of a 3-wire synchronous serial port. It includes LRCK
(pin 3), BCK (pin 1), and DATA (pin 2). BCK is the serial audio bit clock, and it is used to clock the serial data
present on DATA into the serial shift register of the audio interface. Serial data is clocked into the
PCM1753/54/55 on the rising edge of BCK. LRCK is the serial audio left/right word clock. It is used to latch serial
data into the internal registers of the serial audio interface.
Both LRCK and BCK should be synchronous to the system clock. Ideally, it is recommended that LRCK and
BCK be derived from the system clock input, SCK. LRCK is operated at the sampling frequency, f
S
. BCK can
be operated at 32, 48, or 64 times the sampling frequency for standard and left-justified formats. BCK can be
operated at 48 or 64 times the sampling frequency for the I
2
S format.
Internal operation of the PCM1753/54/55 is synchronized with LRCK. Accordingly, internal operation is held
when the sampling rate clock of LRCK is changed or when SCK and/or BCK is interrupted for a 3-bit clock cycle
or longer. If SCK, BCK, and LRCK are provided continuously after this held condition, the internal operation is
re-synchronized automatically in a period of less than 3/f
S
. External resetting is not required.
Audio Data Formats and Timing
The PCM1753/55 supports industry-standard audio data formats, including standard, I
2
S, and left-justified. The
PCM1754 supports I
2
S and 16-bit-word right-justified. The data formats are shown in Figure 22. Data formats
are selected using the format bits, FMT[2:0], located in control register 20 of the PCM1753/55, and are selected
using the FMT pin on the PCM1754. The default data format is 24-bit left-justified. All formats require binary
2s-complement, MSB-first audio data. Figure 21 shows a detailed timing diagram for the serial audio interface.
DATA
t
(BCH)
1.4 V
BCK
LRCK
t
(BCL)
t
(LB)
t
(BCY)
t
(DS)
t
(DH)
1.4 V
1.4 V
t
(BL)
PARAMETERS
SYMBOL
t
(BCY)
MIN
MAX
UNITS
BCK pulse cycle time
1/(32 f
S
), 1/(48 f
S
),
1/(64 f
S
)
(1)
35
BCK high-level time
t
(BCH)
t
(BCL)
t
(BL)
t
(LB)
t
(DS)
t
(DH)
ns
BCK low-level time
35
ns
BCK rising edge to LRCK edge
10
ns
LRCK falling edge to BCK rising edge
10
ns
DATA setup time
10
ns
DATA hold time
(1)
f
S
is the sampling frequency (e.g., 44.1 kHZ, 48 kHz, 96 kHz, etc.).
10
ns
Figure 21. Audio Interface Timing
相關(guān)PDF資料
PDF描述
PCM1753 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
PCM1753DBQ 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
PCM1754 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
PCM1755 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
PCM1755DBQ 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM1755DBQRG4 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC PCM175x: 24-Bit Multi 192kHz Samp RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
PCM1756DBQR 制造商:Texas Instruments 功能描述:
PCM-176 功能描述:電線鑒定 Pre-Printed WM Card, Vinyl Cloth, .22" W RoHS:否 制造商:TE Connectivity / Q-Cees 產(chǎn)品:Labels and Signs 類型: 材料:Vinyl 顏色:Blue 寬度:0.625 in 長(zhǎng)度:1 in
PCM1760 制造商:BB 制造商全稱:BB 功能描述:Multi-Bit Enhanced Noise Shaping 20-Bit ANALOG-TO-DIGITAL CONVERSION SYSTEM
PCM1760P 功能描述:IC DUAL 20-BIT A/D CONV 28-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率（每秒）:3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*