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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)： | 11/15頁 |
| 文件大小： | 277K |
| 代理商： | OQ2538HP |
May 1996
11
Philips Semiconductors
Application note
SDH/SONET main amplifier
OQ2538HP
PREPARING THE DEMO BOARD FOR OPERATION
!! WARNING:
THE RF INPUT AND OUTPUT IC PINS ARE
NOT ESD PROTECTED
. HANDLE THE DEMONSTRATION
BOARD ACCORDING TO STANDARD ESD HANDLING PROCEDURES!
The IC can be operated in single-ended or differential mode. For single-ended operation the board must be assembled
according to the schematic. If the IC is used in a differential application, it is recommended leave the components R1,
R4, C6, C7 UNMOUNTED and, in stead, mount a 200
resistor with case style 0603 across the differential input lines.
Adjust the supply voltage (V
ee
) to -4.5V before connecting the power cable to the board.
!! WARNING:
THE INPUTS ‘IN/INQ’ MUST BE
AC COUPLED
TO ANY INSTRUMENT. USE SMA
DC BLOCKS
AT
THE INPUTS BEFORE CONNECTING THE RF SOURCE TO THE DEMO BOARD!
If the IC is tested single-ended, the unused rf input/output must be terminated with 50
. All rf connections from the
instruments to the demo board should be made with high quality low-loss coaxial RF cable, with 50
characteristic
impedance.
The 100
resistors R2 & R3 at the outputs OUT/OUTQ are placed to have a 50
matching of the testboard to a 50
cable. These resistors are not essential in an application, where the succeeding IC (e.g. data&clock recovery) is
positioned close to the OQ2538 output.
FUNCTIONAL TEST: DC OPERATING POINT AND OFFSET COMPENSATION
To verify all DC characteristics both the
inputs
and
outputs
have to remain open. The voltage levels at the pins can be
measured with a digital voltmeter. The input DC offset must be lower than 0.6 mV. This should be measured with a
voltmeter directly across the input pins.
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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