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參數(shù)資料
| 型號： | DS1123LE-25+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DELAY LINE 256TAP 16-TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 標(biāo)片/步級數(shù)： | 256 |
| 功能： | 單發(fā)射，可編程 |
| 延遲到第一抽頭： | 16.5ns |
| 接頭增量： | 0.25ns |
| 可用的總延遲： | 63.75ns |
| 獨立延遲數(shù)： | 1 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 管件 |
DS1123L
3.3V, 8-Bit, Programmable Timing Element
____________________________________________________________________
11
to be shifted to U2, U2’s data would be shifted to U3, etc.
As shown, the microprocessor would have to shift 24 bits
during each read or write cycle to avoid inadvertently
changing the settings in any of the 3-wire devices. Also
note that the feedback resistor or a separate input (not
shown) can still be used to read the 3-wire device set-
tings when multiple devices are cascaded.
Configuring the DS1123L as a Delay Line
To use the DS1123L as a delay line, the MS pin must
be tied to ground. When used as a delay line, the inter-
nal architecture of the DS1123L allows the output delay
time to be considerably longer than the input pulse
width (see AC specifications). This feature is useful in
many applications, in particular in clock phase control,
where delays up to and beyond one full clock period
can be achieved. Table 1 lists some of the delay char-
acteristics of the different speed options available for
the DS1123L device.
Using the Reference Delay
All delay lines have an inherent step-zero delay
between IN and OUT (tD0) due to the propagation
delay through the input and output buffers. To simplify
system design, a reference delay has been included on
the DS1123L that can be used to compensate for the
step-zero delay. The reference output allows the
DS1123L to be used to generate small differential
delays that cannot be generated when the OUT delay
is referenced to the input. The step-zero OUT delay is
always approximately 1ns faster than the REF delay
(see Figure 8). This allows the DS1123L to generate a
nondelayed output with respect to the reference output.
In addition, the reference output driver is sized similarly
to the OUT output driver, both outputs act similarly over
temperature, and they are both triggered at the same
time regardless of the exact input threshold. These fea-
tures make the output delay with respect to the refer-
ence act more ideally because both of these outputs
are skewed approximately the same amount due to
these phenomena.
Integral Nonlinearity
Integral nonlinearity (INL) is defined as the deviation from
a straight line response drawn between the measured
step-zero delay and the measured step 255 delay with
respect to the reference output. INL measured with
respect to IN is not specified, but should be slightly high-
er than when measured with respect to the reference out-
put. This is because measurements taken with respect to
tEW
tCW
tES
tEH
tDSC
tEGV
tCQX
tCQV
tEDZ
tEQZ
tEDX
tDHC
tCW
PREVIOUS VALUE
NEW
VALUE
NEW
BIT 7
NEW
BIT 0
NEW BIT 6
OLD BIT 7
OLD BIT 6
OLD BIT 0
ENABLE
(LE)
CLOCK
(CLK)
SERIAL
INPUT
(D)
SERIAL
INPUT
(Q)
DELAY
TIME
Figure 6. Serial Interface Timing Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1123LE-25+ | 功能描述:延遲線/計時元素 Programmable 3.3V 8 Bit Timing Element RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 傳播延遲時間:1000 ps 工作溫度范圍: 封裝 / 箱體:QFN-24 封裝:Tube |
| DS1123LE-50 | 功能描述:延遲線/計時元素 Programmable 3.3V 8 Bit Timing Element RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 傳播延遲時間:1000 ps 工作溫度范圍: 封裝 / 箱體:QFN-24 封裝:Tube |
| DS1123LE-50+ | 功能描述:延遲線/計時元素 Programmable 3.3V 8 Bit Timing Element RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 傳播延遲時間:1000 ps 工作溫度范圍: 封裝 / 箱體:QFN-24 封裝:Tube |
| DS1123LS-200 | 功能描述:延遲線/計時元素 RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 傳播延遲時間:1000 ps 工作溫度范圍: 封裝 / 箱體:QFN-24 封裝:Tube |
| DS1123LS-25 | 功能描述:延遲線/計時元素 RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 傳播延遲時間:1000 ps 工作溫度范圍: 封裝 / 箱體:QFN-24 封裝:Tube |
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