์ „์ž๋ถ€ํ’ˆ ๋ฐ์ดํ„ฐ์‹œํŠธ ๊ฒ€์ƒ‰์—”์ง„
  Korean  โ–ผ

Delete All
ON OFF
ALLDATASHEET.CO.KR

X  

Preview PDF Download HTML

PCM1840 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 11 Page - Texas Instruments

Click here to check the latest version.
๋ถ€ํ’ˆ๋ช… PCM1840
์ƒ์„ธ๋‚ด์šฉ  PCM1840 Quad Channel, 32-Bit, 192-kHz, Burr-BrownTM Audio ADC
Download  34 Pages
Scroll/Zoom Zoom In 100% Zoom Out
์ œ์กฐ์‚ฌ  TI1 [Texas Instruments]
ํ™ˆํŽ˜์ด์ง€  http://www.ti.com
Logo 

PCM1840 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 11 Page - Texas Instruments

Zoom Inzoom in Zoom Outzoom out
/ 34 page
 11 / 34 page
background image
2
1
0
N-1
N-2
N-1
N-2
N-3
2
1
0
N-1
N-2
N-3
2
1
0
Ch1
(Word Length : 32)
Ch2
(Word Length : 32)
Ch3 to Ch4
(Word Length : 32)
2
1
0
N-1
N-2
Ch1
(Word Length : 32)
FSYNC
BCLK
SDOUT
n
th Sample
(n+1)
th Sample
11
PCM1840
www.ti.com
SBAS989 โ€“ APRIL 2019
Product Folder Links: PCM1840
Submit Documentation Feedback
Copyright ยฉ 2019, Texas Instruments Incorporated
7.3 Feature Description
7.3.1 Hardware Control
The device supports simple hardware pin controlled options to select specific mode of operation and audio
interface for a given system. The MSZ, MD0, MD1, FMT0, and FMT1 pins allow the device to be controlled by
either pullup or pulldown resistors as well as the GPIO from a digital device.
7.3.2 Audio Serial Interfaces
Digital audio data flows between the host processor and the PCM1840 on the digital audio serial interface (ASI),
or audio bus. This highly flexible ASI bus includes a TDM mode for multichannel operation, support for I2S or left-
justified protocols format, and the pin-selectable master-slave configurability for bus clock lines.
The device supports audio bus master or slave mode of operation using the hardware pin MSZ. In slave mode,
FSYNC and BCLK work as input pins whereas in master mode, FSYNC and BCLK work as output pins
generated by the device.Table 1 shows the master and slave mode selection using the MSZ pin.
Table 1. Master and Slave Mode Selection
MSZ
MASTER AND SLAVE SELECTION
LOW
Slave mode of operation
HIGH
Master ode of operation
The bus protocol TDM, I2S, or left-justified (LJ) format can be selected by using the FMT0 and FMT1 pins. As
shown in Table 2, these modes are all most significant byte (MSB)-first, pulse code modulation (PCM) data
format, with the output channel data word-length of 32 bits.
Table 2. Audio Serial Interface Format
FMT1
FMT0
AUDIO SERIAL INTERFACE FORMAT
LOW
LOW
4-channel output with time division multiplexing (TDM) mode
LOW
HIGH
2-channel output with time division multiplexing (TDM) mode
HIGH
LOW
2-channel output with left-justified (LJ) mode
HIGH
HIGH
2-channel output with inter IC sound (I2S) mode
7.3.2.1 Time Division Multiplexed Audio (TDM) Interface
In TDM mode, also known as DSP mode, the rising edge of FSYNC starts the data transfer with the slot 0 data
first. Immediately after the slot 0 data transmission, the remaining slot data are transmitted in order. FSYNC and
each data bit (except the MSB of slot 0 when TX_OFFSET equals 0) is transmitted on the rising edge of BCLK.
Figure 14 to Figure 17 illustrate the protocol timing for TDM operation with various configurations.
Figure 14. TDM Mode Protocol Timing (FMT0 = LOW) In Slave Mode


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34 


๋ฐ์ดํ„ฐ์‹œํŠธ Download




๋งํฌ URL



Privacy Policy
ALLDATASHEET.CO.KR
ALLDATASHEET ๊ฐ€ ๊ท€ํ•˜์— ๋„์›€์ด ๋˜์…จ๋‚˜์š”?  [ DONATE ]  

Alldatasheet๋Š”?   |   ๊ด‘๊ณ ๋ฌธ์˜    |   ์šด์˜์ž์—๊ฒŒ ์—ฐ๋ฝํ•˜๊ธฐ   |   ๊ฐœ์ธ์ •๋ณด์ทจ๊ธ‰๋ฐฉ์นจ   |   ์ฆ๊ฒจ์ฐพ๊ธฐ   |   ๋งํฌ๊ตํ™˜   |   ์ œ์กฐ์‚ฌ๋ณ„ ๊ฒ€์ƒ‰
All Rights Reservedยฉ Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn