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參數(shù)資料
| 型號： | TZA3005 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | SDH/SONET STM1/OC3 and STM4/OC12 transceiver |
| 中文描述： | SDH / SONET的STM1/OC3和STM4/OC12收發(fā)器 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大小： | 546K |
| 代理商： | TZA3005 |
1997 Aug 05
18
Philips Semiconductors
Objective specification
SDH/SONET STM1/OC3 and
STM4/OC12 transceiver
TZA3005
APPLICATION INFORMATION
It is sometimes necessary to ‘forward clock’ data in an
SDH/SONET system. When this is the case, the parallel
data clock and the reference clock from which the high
speed serial clock is synthesized will both originate from
the same (usually TTL/CMOS) clock source. The following
sections explain how to configure the TZA3005 to
operated in this mode.
Clock control logic description
The timing control logic in the TZA3005 automatically
generates an internal load signal with a fixed relationship
to the reference clock. The logic takes into account the
variation between the reference clock and the internal load
signal over temperature and voltage.
The connections required to implement the design are
shown in Fig.10, and the timing specifications are shown
in Fig.11. The specified set-up and hold times must be met
by the controller ASIC. It is recommended to latch the data
on the falling edge of the reference clock in order to satisfy
the appropriate specifications.
PECL output termination
The PECL outputs have to be terminated with
50
to VCC
2.0V. If this voltage is not available, a
Thevenin termination can be used as shown in Fig.11.
Reference clock
Reference clock jitter must be minimized to ensure
SONET jitter generation specifications are met. It may
prove difficult to meet these specifications if a TTL source
is used for the reference clock.
Fig.10 TZA3005 with data clocked by reference clock.
handbook, halfpage
MGK492
ASIC
TXPCLK
TZA3005
TXPD0 to TXPD7
TTL/PECL
CONVERTER
propagation delay <3.5 ns
PECL
REFCLK
2
8
data
serial
data
Fig.11 Data timing with respect to reference clock.
handbook, full pagewidth
MGK493
th
TXPD0 to
TXPD7
tsu
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PDF描述 |
|---|---|
| TZA3023 | SDH/SONET STM4/OC12 transimpedance amplifier |
| TZA3023T | SDH/SONET STM4/OC12 transimpedance amplifier |
| TZA3023U | SDH/SONET STM4/OC12 transimpedance amplifier |
| TZA3030 | SDH/SONET STM1/OC3 optical receiver |
| TZA3030HL | SDH/SONET STM1/OC3 optical receiver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TZA3005H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:SDH/SONET STM1/OC3 and STM4/OC12 transceiver |
| TZA3011A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:30 Mbits/s up to 3.2 Gbits/s A-rate(TM) laser drivers |
| TZA3011AVH/C2,551 | 功能描述:激光驅動器 3.3V D-LOOP LASERDRVR DC-3.2GB RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
| TZA3011AVH/C2,557 | 功能描述:激光驅動器 3.3V D-LOOP LASERDRVR DC-3.2GB RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
| TZA3011BVH/C2,551 | 功能描述:激光驅動器 3.3V D-LOOP LASERDRVR DC-3.2GB RoHS:否 制造商:Micrel 數(shù)據(jù)速率:4.25 Gbps 工作電源電壓:3 V to 3.6 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-16 封裝:Tube |
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