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參數(shù)資料
| 型號(hào)： | GS1528-CTA |
| 廠商： | Gennum Corporation |
| 英文描述： | GS1528 HD-LINX-TM II Multi-Rate SDI Dual Slew-Rate Cable Driver |
| 中文描述： | GS1528的HD - LINX進(jìn)程，商標(biāo)第二多速率SDI雙擺率電纜驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 7/13頁(yè) |
| 文件大?。?/td> | 458K |
| 代理商： | GS1528-CTA |
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GS1528 Data Sheet
16632 - 5
June 2005
7 of 13
3. Detailed Description
3.1 Input Interfacing
S
DI/SDI are high impedance differential inpu
ts. (See
Figure 2-1
1 for equivalent
input circuit).
Several conditions must be observed when interfacing to these inputs:
1. The differential input signal amplitude must be between 300 and 2000mVpp.
2. The common mode voltage range must be as specified in the
Table 1-1: DC
Electrical Characteristics
.
3. For input trace lengths longer than approximately 1cm, the inputs should be
terminated as shown in the Typical Application Circuit.
The GS1528 inputs are self-biased, allowing for simple AC coupling to the device.
For serial digital video, a minimum capacitor value of 4.7μF should be used to allow
coupling of pathological test signals. A tantalum capacitor is recommended.
3.2 SD/HD
The GS1528 SDO rise and fall times can be set to comply with both SMPTE
259M/344M and SMPTE 292M. For all SMPTE 259M standards, or any data rate
that requires longer rise and fall time characteristics, the SD/HD pin must be set to
a HIGH INPUT. For SMPTE 292M standards and signals which require faster rise
and fall times, this pin should be set to a LOW INPUT.
3.3 Output Interfacing
The GS1528 outputs are current mode, and will drive 800mV into a 75
Ω
load.
These outputs are protected from accidental static damage with internal static
protection diodes.
The SMPTE 292M, SMPTE 344M and SMPTE 259M standards requires that the
output of a cable driver have a source impedance of 75
Ω
and a return loss of at
least 15dB between 5MHz and 1.485GHz.
In order for an SDI output circuit using the GS1528 to meet this specification, the
output circuit shown in the Typical Application Circuit is recommended.
The value of L
COMP
will vary depending on the PCB layout, with a typical value of
5.6nH
(see the
Application Information on page 11
in this data sheet for further
details). A 4.7μF capacitor is used for AC coupling the output of the GS1528. This
value is chosen to ensure that pathological signals can be coupled without a
significant DC component occurring.
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相關(guān)代理商/技術(shù)參數(shù) |
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| GS1528-CTAE3 | 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:HD/SD/ASI Cable Driver |
| GS1528-CTAE3Z | 制造商:Semtech Corporation 功能描述:TAPE & REEL HD/SD/ASI Cable Driver |
| GS152B | 制造商:GTM 制造商全稱:GTM 功能描述:P-CHANNEL ENHANCEMENT MODE POWER MOSFET |
| GS1531 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS1531 HD-LINX-TM II Multi-Rate Serializer |
| GS1531_08 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate Serializer with ClockCleaner |
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