參數(shù)資料
型號: LTC1403AIMSE-1#TRPBF
廠商: Linear Technology
文件頁數(shù): 13/22頁
文件大?。?/td> 0K
描述: IC ADC 14BIT 2.8MSPS DIFF 10MSOP
標準包裝: 2,500
位數(shù): 14
采樣率(每秒): 2.8M
數(shù)據(jù)接口: 串行,SPI?
轉換器數(shù)目: 1
功率耗散(最大): 12mW
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)裸露焊盤
供應商設備封裝: 10-MSOP 裸露焊盤
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個單端,單極;1 個差分,單極
配用: DC1082A-D-ND - BOARD SAR ADC LTC1403A
DC1082A-C-ND - BOARD SAR ADC LTC1403A-1
LTC1403-1/LTC1403A-1
20
14031fc
APPLICATIONS INFORMATION
*****************************************************************************************************
*LTC1403 timing from board with 10MHz crystal.
*
*10MHz, divided from 40MHz, forced to CLKIN by 1403 board.
*
*Horizontal scale is 25ns/chr or 100ns period at BCLKR
*
*Timing measured at DSP pins. Jxx pin labels for jumper cable.
*
*BFSR Pin J1-20 ~~\____/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\____/~~~~~~~~~~~*
*BCLKR Pin J1-14 _/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~*
*BDR
Pin J1-26 _—_—_—<B13-B12-B11-B10-B09-B08-B07-B06-B05-B04-B03-B02-B01-B00>—_—<B13-B12*
*CLKIN Pin J5-09 ~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~*
*C542 read
0 B13 B12 B11 B10 B09 B08 B07 B06 B05 B04 B03 B02 B01 B00 0
0 B13 B12*
*
* negative edge BCLKR
* negative BFSR pulse
* no data shifted
* 1’ cable from counter to CONV at DUT
* 2’ cable from counter to CLK at DUT
*No right shift is needed to right justify the input data in the main program
*
*the two msbs should also be masked
*
*****************************************************************************************************
*
Loopback
.set
NO
;(digital looback mode?)
DLB bit
Format
.set
BIT_16
;(Data format? 16,12,10,8)
FO bit
IntSync
.set
NO
;(internal Frame syncs generated?) TXM bit
IntCLK
.set
NO
;(internal clks generated?)
MCM bit
BurstMode
.set
YES
;(if BurstMode=NO, then Continuous) FSM bit
CLKDIV
.set
3
;(3=default value, 1/4 CLOCKOUT)
PCM_Mode
.set
NO
;(Turn on PCM mode?)
FS_polarity
.set
YES
;(change polarity)YES=^^^\_/^^^, NO=___/^\___
CLK_polarity
.set
NO
;(change polarity)for BCLKR YES=_/^, NO=~\_
Frame_ignore
.set
!YES
;(inverted !YES -ignores frame)
XMTautobuf
.set
NO
;(transmit autobuffering)
RCVautobuf
.set
YES
;(receive autobuffering)
XMThalt
.set
NO
;(transmit buff halt if XMT buff is full)
RCVhalt
.set
NO
;(receive buff halt if RCV buff is full)
XMTbufAddr
.set
0x800
;(address of transmit buffer)
XMTbufSize
.set
0x000
;(length of transmit buffer)
RCVbufAddr
.set
0x800
;(address of receive buffer)
RCVbufSize
.set
0x800
;(length of receive buffer)works up to 800
*
* See notes in the ‘C54x CPU and Peripherals Reference Guide on setting up
* valid buffer start and length values. Page 9-44
*
**********************************************************************
.eval ((Loopback >> 1)|((Format & 2)<<1)|(BurstMode <<3)|(IntCLK <<4)|(IntSync <<5)) ,SPCval
.eval ((CLKDIV)|(FS_polarity <<5)|(CLK_polarity<<6)|((Format &
1)<<7)|(Frame_ignore<<8)|(PCM_Mode<<9)), SPCEval
.eval (SPCEval|(XMTautobuf<<10)|(XMThalt<<12)|(RCVautobuf<<13)|(RCVhalt<<15)), SPCEval
sineinit:
bspc = #SPCval
; places buffered serial port in reset
ifr = #10h
; clear interrupt flags
imr = #210h
; Enable HPINT,enable BRINT0
intm = 0
; all unmasked interrupts are enabled.
bspce = #SPCEval
; programs BSPCE and ABU
axr = #XMTbufAddr
; initializes transmit buffer start address
bkx = #XMTbufSize
; initializes transmit buffer size
arr = #RCVbufAddr
; initializes receive buffer start address
bkr = #RCVbufSize
; initializes receive buffer size
bspc = #(SPCval | GO)
; bring buffered serial port out of reset
return
;for transmit and receive because GO=0xC0
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