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參數(shù)資料
| 型號： | TLV5616I |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN |
| 中文描述： | 2.7 V至5.5 V低功耗12位數(shù)字至模擬與電源降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 16/23頁 |
| 文件大?。?/td> | 310K |
| 代理商： | TLV5616I |
TLV5616C, TLV5616I
2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG
CONVERTERS WITH POWER DOWN
SLAS152B – DECEMBER 1997 – REVISED MARCH 1999
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
LJMP
start
; Execution starts at address 0 on power–up.
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Code in the timer0 interrupt vector
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
CSEG AT 0BH
LJMP
timer0isr ; Jump vector for timer 0 interrupt is 000Bh
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Define program variables
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
RSEG
VAR1
rolling_ptr: DS 1
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Interrupt service routine for timer 0 interrupts
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
RSEG
ISR
timer0isr:
PUSH
PUSH
PSW
ACC
CLR
CLR
T0
; set CSB low
; set FS low
T1
; The signal to be output on the dac is a sine function. One cycle of a sine wave is
; held in a table @ sinevals as 32 samples of msb, lsb pairs (64 bytes). The pointer,
; rolling_ptr, rolls round the table of samples incrementing by 2 bytes (1 sample) on
; each interrupt (at the end of this routine).
MOV
MOV
DPTR,#sinevals ; set DPTR to the start of the table of sine signal values
A,rolling_ptr
; ACC loaded with the pointer into the sine table
MOVC
ORL
MOV
A,@A+DPTR
A, #00H
SBUF,A
; get msb from the table
; set control bits
; send out msb of data word
MOVA,rolling_ptr; move rolling pointer in to ACC
INC
A
MOVC
A,@A+DPTR
; increment ACC holding the rolling pointer
; which is the lsb of this sample, now in ACC
MSB_TX:
JNB
CLR
MOV
TI, MSB_TX
TI
SBUF,A
; wait for transmit to complete
; clear for new transmit
; and send out the lsb
LSB_TX:
JNB
SETB
CLR
TI, LSB_TX
T1
TI
; wait for lsb transmit to complete
; set FS = 1
; clear for new transmit
MOV
INC
INC
ANL
MOV
A,rolling_ptr
A
A
A,#03FH
rolling_ptr,A
; load ACC with rolling pointer
; increment the ACC twice, to get next sample
; wrap back round to 0 if >64
; move value held in ACC back to the rolling pointer
SETB
T0
; CSB high
POP
POP
ACC
PSW
RETI
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Set up stack
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TLV5616ID | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12bit DAC w/Pwr D RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| TLV5616IDG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12bit DAC w/Pwr D RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| TLV5616IDGK | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12bit DAC w/Pwr D RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| TLV5616IDGKG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 2.7-5.5 V Low Power 12-Bit RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| TLV5616IDGKR | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 2.7-5.5 V Low Power 12-Bit RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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