- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374664 > S3026 (Applied Micro Circuits Corp.) SONET/SDH/ATM Clock Recovery Unit(帶片上高頻鎖相環(huán)的SONET/SDH/ATM時鐘恢復單元) PDF資料下載
參數(shù)資料
| 型號： | S3026 |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | SONET/SDH/ATM Clock Recovery Unit(帶片上高頻鎖相環(huán)的SONET/SDH/ATM時鐘恢復單元) |
| 中文描述： | 的SONET / SDH / ATM的時鐘恢復單元（帶片上高頻鎖相環(huán)的的SONET / SDH / ATM的時鐘恢復單元） |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 55K |
| 代理商： | S3026 |
2
EV3026 – SONET/SDH Clock Recovery Unit
EVALUATION BOARD
October 19, 1999
Electrical Connections
Power Connections
Terminal posts are provided at the top edge of the
board allowing separate control of voltage levels for
the input signal termination, the S3026 itself, and 1
the S3026 output terminations.
The buffers translate between the external test equip-
ment environment or other standard ECL and/or +5V
referenced ECL systems to supply the correct +5V ref-
erenced ECL to the device. The separately powered
output buffers allow easy connection to the 50
to
ground inputs of high performance oscilloscopes and
spectrum analyzers as well as the standard ECL I/O of
serial Bit Error Rate Testers (BERT) and jitter analyz-
ers. Table 1 illustrates the nominal input voltages for IP
VTT, DUT VCC and O/P VTT. The options for BUF
VEE and BUF VCC are paired vertically.
SMA Connectors
Six coaxial SMA connectors are provided for the differ-
ential serial data input/output signals and output clock.
An additional SMA connector is provided for an
optional external reference clock. (See Figure 1 for
locations.)
Serial Data In [SERDATIP/N]
- Buffered Differential
AC coupled PECL inputs. The clock is recovered from
the transitions on these inputs. On-board termination
of 50
to I/P VTT is provided, allowing proper termi-
nation of PECL, ECL, or ground terminated data
sources.
Serial Data Out [SERDATOP/N]
- Buffered Differen-
tial PECL outputs. The delayed version of the input
serial data retimed by the recovered serial clock. The
buffered outputs can drive PECL, ECL, or ground ter-
minated instrument inputs. Driven inputs must provide
a 50
DC termination to the respective reference.
These are the recommended outputs for connection of
the evaluation board to monitoring instrumentation.
Serial Clock Out [SERCLKOP/N]
- Buffered Differen-
tial PECL outputs. The recovered serial clock, with the
rising edge of SERCLKOP centered in the SERDATOP/
N bit period. The buffered outputs can drive PECL,
ECL, or ground terminated instrument inputs. Driven
inputs must provide a 50
DC termination to the
respective reference. These are the recommended out-
puts for connection of the evaluation board to
monitoring instrumentation.
Note: Accurate measurement also requires the
removal of on-board zero
jumpers for correct imped-
ance matching to external 50
cabling and
instrumentation. Please consult AMCC for appropriate
in-factory reconfiguration.
External TTL Reference Clock [EXTERNAL TTL
REFCLK I/Px]
- TTL input providing access to the TLL
Reference Clock (TTLREF) input of the S3026. This
input allows operation at other than the two available
SONET/SDH data rates. The provided TTL crystal
oscillator must be removed if use of an external refer-
ence is desired. This connector can also be used to
monitor the provided TTL oscillator output.
Lock Detect [LOCKDET]
- PECL output (Test Point).
In addition to AMS connectors, the LOCKDET output
is available on a test pin post for monitoring with a high
impedance DVM or scope probe.
DIP Switch
The four element DIP switch allows control of the
static inputs of the S3026. The OFF (open = 1) condi-
tion of the DIP switch asserts a logic high on the
assigned signal, and the ON condition asserts a logic
low. In option B, SW2 controls the MODE input. OFF
allows operation at 622.08 Mbit/s, ON selects 155.52
Mbit/s.
SW3 of the DIP switch controls the PECL SDN input.
ON allows the S3026 to recover the clock from the
serial data stream. OFF will force the S3026 to lock to
the reference clock. LCKREFN when ON will also
force the S3026 to lock to the reference clock.
BYPASS should be ON for normal operation.
Table 1. Power Connections for DUT and Test
Equipment Interface
Power Supply
Nominal Input Voltage
I/P VTT
0V / -2.0V / +3V
DUT VCC
5.0V
GND
0.0V
O/P VTT
DUT VCC -2V
BUF VEE
-3.0V / 0.0V / -5.0V
BUF VCC
2.0V / 5.0V / 0.0V
相關PDF資料 |
PDF描述 |
|---|---|
| S3027 | SONET/SDH/ATM Clock Recovery Unit(帶片上高頻鎖相環(huán)的SONET/SDH/ATM時鐘恢復單元) |
| S3028 | SONET/SDH/ATM OC-3/12 Transceiver(帶片上鎖相環(huán)，頻率可選的SONET/SDH收發(fā)器（完全集成OC-3/12接口器件）) |
| S3029 | Clock Synthesis and Recovery Unit(數(shù)據(jù)傳送速率155 MBit/S的時鐘合成和恢復單元) |
| S302H | S302H |
| S302H3 | S302H |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S3028 | 制造商:ASI 制造商全稱:ASI 功能描述:SILICON ABRUPT VARACTOR DIODE |
| S3029 | 制造商:AMCC 制造商全稱:Applied Micro Circuits Corporation 功能描述:SONET/SDH/ATM 155 MBIT/S QUAD TRANSCEIVER |
| S3029A | 制造商:AppliedMicro 功能描述: |
| S302AB | 制造商:Cinch Connectors 功能描述:Conn Wire to Board SKT 2 POS Solder Lug ST Panel Mount |
| S-302-AB | 功能描述:Jones 插頭和插槽 2C PNL MNT SOCKET RoHS:否 制造商:Molex 產品類型:Socket Connectors 系列:Beau 位置/觸點數(shù)量:8 電壓額定值:250 V 電流額定值:10 A 外殼材料:Thermoplastic 觸點材料:Phosphor Bronze 觸點電鍍:Tin-Lead |
發(fā)布緊急采購，3分鐘左右您將得到回復。