參數(shù)資料
型號(hào)： LTC2156IUP-14#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： 2-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
封裝： 9 X 9 MM, LEAD FREE, PLASTIC, MO-220WNJR-5, QFN-64
文件頁(yè)數(shù)： 13/32頁(yè)
文件大?。?/td> 647K
代理商： LTC2156IUP-14#PBF
LTC2157-14/
LTC2156-14/LTC2155-14
20
21576514f
APPLICATIONS INFORMATION
Programmable LVDS Output Current
The default output driver current is 3.5mA. This current
can be adjusted by serially programming mode control
register A3 (see Table 3). Available current levels are
1.75mA, 2.1mA, 2.5mA, 3mA, 3.5mA, 4mA and 4.5mA.
Optional LVDS Driver Internal Termination
In most cases, using just an external 100Ω termination
resistor will give excellent LVDS signal integrity. In addi-
tion, an optional internal 100Ω termination resistor can
be enabled by serially programming mode control register
A3. The internal termination helps absorb any reflections
caused by imperfect termination at the receiver. When the
internal termination is enabled, the output driver current
is doubled to maintain the same output voltage swing.
Overflow Bit
The overflow output bit (OF) outputs a logic high when
the analog input is either overranged or underranged. The
overflow bit has the same pipeline latency as the data bits.
The OF output is double data rate; when CLKOUT+ is low,
channel A’s overflow is available; when CLKOUT+ is high,
channel B’s overflow is available.
Phase Shifting the Output Clock
To allow adequate set-up and hold time when latching the
output data, the CLKOUT+ signal may need to be phase
shifted relative to the data output bits. Most FPGAs have
this feature; this is generally the best place to adjust the
timing.
Alternatively, the ADC can also phase shift the CLKOUT+/
CLKOUT– signals by serially programming mode control
register A2. The output clock can be shifted by 0°, 45°,
90°, or 135°. To use the phase shifting feature the clock
duty cycle stabilizer must be turned on. Another con-
trol register bit can invert the polarity of CLKOUT+ and
CLKOUT–, independently of the phase shift. The combina-
tion of these two features enables phase shifts of 45° up
to 315° (Figure 11).
Figure 11. Phase Shifting CLKOUT
CLKOUT+
D0-D13, OF
PHASE
SHIFT
0°
45°
90°
135°
180°
225°
270°
315°
CLKINV
0
1
CLKPHASE1
MODE CONTROL BITS
0
1
0
1
CLKPHASE0
0
1
0
1
0
1
0
1
21576514 F11
ENC+
相關(guān)PDF資料
PDF描述
LTC2155CUP-14#PBF 2-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
LTC2156CUP-14#TRPBF 2-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
LTC2155CUP-14#TRPBF 2-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
LTC2156IUP-14#TRPBF 2-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
LTC2156CUP-14#PBF 2-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2157-12 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 14-Bit 250Msps
LTC2157-14 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 14-Bit 250Msps
LTC2157CUP-12 制造商:Linear Technology 功能描述:ADC DUAL 12BIT 250M 64QFN 制造商:Linear Technology 功能描述:ADC, DUAL, 12BIT, 250M, 64QFN
LTC2157CUP-12#PBF 功能描述:IC ADC DUAL 12BIT 250M 64-QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
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