参数资料
型号: DAC5687IPZPG4
厂商: TEXAS INSTRUMENTS INC
元件分类: DAC
英文描述: PARALLEL, WORD INPUT LOADING, 0.0104 us SETTLING TIME, 16-BIT DAC, PQFP100
封装: GREEN, PLASTIC, HTQFP-100
文件页数: 43/79页
文件大小: 2490K
代理商: DAC5687IPZPG4
www.ti.com
B0168-01
PHSTR
PLLLOCK
MUX
CLK1
CLK1C
{PLLVDD,inv_plllock,dual_clk}
clk_in
Clock
Generator
CLK2
CLK2C
clk_out
FIFO
PHSTRSync
toNCO
PLL VCO
clk_nco
Phase
Accumulator
Reset
Q
D
Q
D
Q
D
Q
D
Q
D
Q
D
T0156-01
PHSTR
clk_in
clk_out
phstratFIFO
Output
clk_nco
Phase
A
R
ccumulator
eset
phase_accum
OnlyMustBe AssertedforOneclk_inPeriod
InputDelayLine+FIFODelay
13clk_ncoCycles
SLWS164E – FEBRUARY 2005 – REVISED SEPTEMBER 2006
Figure 54. Logic Path for PHSTR Synchronization Signal to NCO
The serial interface includes a sync_nco bit in register SYNC_CNTL, which must be set for the PHSTR input
signal to initialize the phase accumulator.
The NCO uses a rising edge detector to perform the synchronous reset of the phase accumulator. Due to the
pipelined nature of the NCO, the latency from the phstr sync signal at the FIFO output to the instant the phase
accumulator is cleared is 13 fNCO clock cycles (fNCO = fDAC in X4 mode, fNCO = fDAC/2 in X2, X4L, and X8 modes).
In 2
× interpolation mode with the inverse sinc filter disabled, overall latency from PHSTR input to DAC output is
~100 input clock cycles.
Figure 55. NCO Phase Accumulator Reset Synchronization Timing
48
Copyright 2005–2006, Texas Instruments Incorporated
Product Folder Link(s): DAC5687
相关PDF资料
PDF描述
DAC5688IRGCTG4 PARALLEL, WORD INPUT LOADING, 0.0104 us SETTLING TIME, 16-BIT DAC, PQCC64
DAC702LH PARALLEL, WORD INPUT LOADING, 4 us SETTLING TIME, 16-BIT DAC, CDIP24
DAC7545KUG4 PARALLEL, WORD INPUT LOADING, 2 us SETTLING TIME, 12-BIT DAC, PDSO20
DAC7545JP PARALLEL, WORD INPUT LOADING, 2 us SETTLING TIME, 12-BIT DAC, PDIP20
DAC7545KP PARALLEL, WORD INPUT LOADING, 2 us SETTLING TIME, 12-BIT DAC, PDIP20
相关代理商/技术参数
参数描述
DAC5687IPZPR 功能描述:数模转换器- DAC 16-bit 500 MSPS 2-8x Interpolat’g Dual-Ch RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
DAC5687IPZPRG4 功能描述:数模转换器- DAC 16-bit 500 MSPS 2-8x Interpolat’g Dual-Ch RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
DAC5687MPZPEP 功能描述:数模转换器- DAC 16B 500Msps 2X-8X Interp 2-Channel DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
DAC5688 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL-CHANNEL, 16-BIT, 800 MSPS, 2x-8x INTERPOLATING DIGITAL-TO-ANALOG CONVERTER (DAC)
DAC5688_10 制造商:TI 制造商全称:Texas Instruments 功能描述:DUAL-CHANNEL, 16-BIT, 800 MSPS, 2x-8x INTERPOLATING DIGITAL-TO-ANALOG CONVERTER (DAC)