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參數資料
| 型號： | GS1532-CF |
| 廠商： | Gennum Corporation |
| 英文描述： | GS1532 HD-LINX-TM II Multi-Rate Serializer |
| 中文描述： | GS1532的HD - LINX進程，商標第二多速率串行器 |
| 文件頁數： | 41/52頁 |
| 文件大小： | 512K |
| 代理商： | GS1532-CF |
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GS1532 Data Sheet
21498 - 6
June 2005
41 of 52
3.9 Serial Digital Output
The GS1532 contains an integrated current mode differential serial digital cable
driver with automatic slew rate control.
To enable the output, SDO_EN/DIS must be set HIGH by the application layer.
Setting the SDO_EN/DIS signal LOW will cause the SDO and SDO output pins to
become high impedance, resulting in reduced device power consumption.
With suitable external return loss matching circuitry, the GS1532's serial digital
outputs will provide a minimum output return loss of -15dB at SD rates. Gennum
recommends using the GS1528 SDI Dual Slew-Rate Cable Driver to meet output
return loss specifications at HD rates.
The integrated cable driver uses a separate power supply of +1.8V DC supplied via
the CD_VDD and CD_GND pins.
3.9.1 Output Swing
Nominally, the voltage swing of the serial digital output is 800mVp-p single-ended
into a 75
Ω
load. This is set externally by connecting the RSET pin to CD_VDD
through 281
Ω .
The output swing may be decreased by increasing the value of the RSET resistor.
The relationship is approximated by the curve shown in
Figure 3-4
.
Alternatively, the serial digital output swing can drive 800mVp-p into a 50
Ω
load.
Since the output swing is reduced by a factor of approximately one third when the
smaller load is used, the RSET resistor must be 187
Ω
to obtain 800mVp-p.
Figure 3-4: Serial Digital Output Swing
3.9.2 Serial Digital Output Mute
The GS1532 will automatically mute the serial digital output when the LOCKED
output signal is LOW. In this case, the SDO and SDO signals are set to a constant
voltage level.
50
Ω
load
300
400
500
600
700
800
900
1000
250 300 350 400 450 500 550 600 650 700
RSET(
Ω
)
Δ
V
S
(
200
75
Ω
load
相關PDF資料 |
PDF描述 |
|---|---|
| GS1532-CFE3 | GS1532 HD-LINX-TM II Multi-Rate Serializer |
| GS1535-CFU | GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker |
| GS1535-CFUE3 | GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker |
| GS1535A | GS1535A / GS9065A HD-LINX-R II Multi-Rate SDI Automatic Reclocker |
| GS1535ACFUE3 | GS1535A / GS9065A HD-LINX-R II Multi-Rate SDI Automatic Reclocker |
相關代理商/技術參數 |
參數描述 |
|---|---|
| GS1532-CFE3 | 制造商:Gennum Corporation 功能描述:Multi Rate Serializer 80-Pin LQFP |
| GS1535 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:GS1535 HD-LINX II-TM Multi-Rate SDI Automatic Reclocker |
| GS1535A | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate SDI Automatic Reclocker |
| GS1535A_06 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate SDI Automatic Reclocker |
| GS1535ACFUE3 | 制造商:GENNUM 制造商全稱:GENNUM 功能描述:Multi-Rate SDI Automatic Reclocker |
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