參數(shù)資料
型號: TLC2558CPW
廠商: Texas Instruments, Inc.
英文描述: BUTT SPLICE,NON-INS. RoHS Compliant: Yes
中文描述: 5五,12位400 ksps的,4 / 8通道,低功耗,串行模數(shù)位自動開機和下變頻器
文件頁數(shù): 16/37頁
文件大?。?/td> 566K
代理商: TLC2558CPW
TLC2554, TLC2558
5-V, 12-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS220A –JUNE 1999
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
modes using the FIFO: modes 01, 10, 11 timing (continued)
Mode 10 (sweep mode) requires reconfiguration at the start of each new sweep sequence. Once the FIFO is
filled up to the programmed threshold, the host has the option to either read the FIFO or configure for other
modes. Once the FIFO is read, the host must reconfigure the device before the next sweep sequence can be
started. So the sequence is either configure : triggered conversions : FIFO read : configure. or configure :
triggered conversions : configure : .... Each configure clears the FIFO and the action that follows the configure
command depends on the mode setting of the device.
Mode 11 (repeat sweep mode) requires one cycle configuration. This sweep sequence can be repeated without
reconfiguration. Once the FIFO is filled up to the programmed threshold, the host has the option to either read
the FIFO or configure for other modes. So the sequence is either configure : triggered conversions : FIFO read
: triggered conversions : FIFO read ... or configure : triggered conversions : configure : .... Each configure clears
the FIFO and the action that follows the configure command depends on the mode setting of the device.
CS
CSTART
SDI
INT
SDO
From Channel 0
FS
(DSP)
From Channel 3
Configure
Conversion
Conversion
Read FIFO
#1
#2
#3
#4
Top of FIFO
tsample(1)
Read FIFO
#1
From Channel 0
Conversion
From Channel 3
Conversion
Repeat
Second FIFO Read
Repeat
tsample(2)
tsample(3)
tsample(4)
First FIFO Read
tconvert
tconvert
tSample(i) > = MIN(tSample)
Command = Configure write for mode 10 or 11, FIFO threshold = 1/2, sweep seq = 0–1–2–3.
Command = Read FIFO
Figure 12. TLC2554/TLC2558 Mode 10/11 DSP Serial Interface (conversions triggered by FS)
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