LTC1403ACMSE Linear Technology, LTC1403ACMSE Datasheet - Page 15

• Manufacturer Part Number: LTC1403ACMSE
• Description: IC ADC 14BIT 2.8MSPS DIFF 10MSOP
• Manufacturer: Linear Technology

Specifications of LTC1403ACMSE

• Number Of Bits: 14
• Sampling Rate (per Second): 2.8M
• Data Interface: Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 12mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIONS INFORMATION
; 01-08-01 ******************************************************************
; Files: 014SI.ASM -> 1403A Sine wave collection with Serial Port interface
;
;
; fi rst element at 1024, last element at 1023, two middles at 2047 and 0000
; unipolar mode
; Works 16 or 64 clock frames.
; negative edge BCLKR
; negative BFSR pulse
; -0 data shifted
; 1’ cable from counter to CONV at DUT
; 2’ cable from counter to CLK at DUT
; ***************************************************************************
start:
sinepeek:
wait
;
breceive:
;
bufull:
----------------Buffered Receive Interrupt Routine ------------------
.text
tim=#0fh
prd=#0fh
tcr = #10h
tspc = #0h
pmst = #01a0h
sp = #0700h
dp = #0
ar2 = #1800h
ar3 = #0800h
ar4 = #0h
call sineinit
call sineinit
goto
ifr = #10h
TC = bitf(@BSPCE,#4000h) ; check which half (bspce(bit14)) of buffer
if (NTC) goto bufull
bspce = #(2023h + 08000h); turn on halt for second half (bspce(bit15))
return_enable
--------------mask and shift input data ----------------------------
b = *ar3+ << -0
b = #03FFFh & b
*ar2+ = data(#0bh)
TC = (@ar2 == #02000h)
if (TC) goto start
goto bufull
bvectors.asm
s2k14ini.asm
.width
.length
.title “sineb0 BSP in auto buffer mode”
.mmregs
.setsect “.text”,
.setsect “vectors”, 0x180,0
.setsect “buffer”,
.setsect “result”, 0x1800,0
wait
160
110
;this label seems necessary
;Make sure /PWRDWN is low at J1-9
;to turn off AC01 adc
; stop timer
; stop TDM serial port to AC01
; set up iptr. Processor Mode STatus register
; init stack pointer.
; data page
; pointer to computed receive buffer.
; pointer to Buffered Serial Port receive buffer
; reset record counter
; or more after the port comes out of reset.
; Double clutch the initialization to insure a proper
; reset. The external frame sync must occur 2.5 clocks
buffered mode to avoid standard mode bug.
2k buffer size.
0x500,0
0x800,0
; load acc b with BSP buffer and shift right -0
; mask out the TRISTATE bits with #03FFFh
;
; store B to out buffer and advance AR2 pointer
; output buffer is 2k starting at 1800h
; restart if out buffer is at 1fffh
; clear interrupt fl ags
; if this still the fi rst half get next half
;Set address of executable
;Set address of incoming 1403 data
;Set address of BSP buffer for clearing
;Set address of result for clearing
;.text marks start of code
LTC1403/LTC1403A
15
1403fb