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參數(shù)資料
| 型號： | OQ2538HP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | SDH/SONET STM16/OC48 main amplifiers(SDH/SONET STM16/OC48主要放大器) |
| 中文描述： | ATM/SONET/SDH SUPPORT CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-313-2, LQFP-48 |
| 文件頁數(shù)： | 14/15頁 |
| 文件大?。?/td> | 277K |
| 代理商： | OQ2538HP |
May 1996
14
Philips Semiconductors
Application note
SDH/SONET main amplifier
OQ2538HP
FUNCTIONAL TEST: TIME DOMAIN
To test the input sensitivity, output levels, rise/fall times and overshoot, a PRBS pattern generator in combination with an
RF clock generator is needed, as depicted in the figure above. With this setup the IC can be tested in differential mode.
The input sensitivity can be determined by starting off with a high input level (100 mV) and then reducing the input signal
level until the amplitude of the output waveform starts to diminish. This is an indication that the amplifier is no longer
clipping the signal. The input level for this case is equal to the input sensitivity.
In addition to the above measurement also the maximum allowed input signal level range has to be tested. The shape
of the wave form should not change under this severe input overload condition.
The rise/fall times (based on 10%-90% crossings) can easily be determined with an oscilloscope. The overshoot and the
band averaged jitter is not specified in the data sheet, but can be measured accordingly.
1
2
TR
Sampling Osc/TDR/TDT
C
C
D
D
C IN
TR
Pattern Generator
C
MOD
Clock
Source
att50 dB
Fig 2. Functional test set up: time response
OQ2538HP
DEMO BOARD
IN
INQ
OUT
OUTQ
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OQ2538U | SDH/SONET STM16/OC48 main amplifiers |
| OQ2538HP; OQ2538U | SDH/SONET STM16/OC48 main amplifiers(SDH/SONET STM16/OC48主要放大器) |
| OQ2541BHP | CLOCK/DATA RECOVERY|BIPOLAR|QFP|48PIN|PLASTIC |
| OR22 | 2-input OR gate with 2x drive strength |
| OR2T04A-2PS84 | Field-Programmable Gate Arrays |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OQ2538HP_97 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SDH/SONET main amplifier |
| OQ2538HPS1 | 制造商:NXP Semiconductors 功能描述: |
| OQ2538U | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SDH/SONET STM16/OC48 main amplifiers |
| OQ2541BHP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CLOCK/DATA RECOVERY|BIPOLAR|QFP|48PIN|PLASTIC |
| OQ2541HP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SDH/SONET data and clock recovery unit STM1/4/16 OC3/12/48 GE |
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