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參數(shù)資料
| 型號(hào)： | MAX3772 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quad LVDS Transmitter with Flow-Through Pinout 16-TSSOP -40 to 85 |
| 中文描述： | 雙速率的光纖通道中繼器 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大小： | 220K |
| 代理商： | MAX3772 |
Loop Filter, VCO, and Latch
The phase detector and frequency detector outputs are
summed into a loop filter. An external capacitor
(between CF+ and CF-) is required to set the PLL
damping factor. The fully integrated VCO contains an
internal current reference and filter circuitry to minimize
the influence of V
CC
noise. The VCO creates a clock
output with frequency proportional to the control volt-
age applied by the loop filter. Data recovery is accom-
plished by using the recovered clock signal to latch the
incoming data to the CML output buffers, significantly
reducing output jitter.
LOCK Output
An active high LOCK output monitor derived from the
frequency detector indicates that the PLL is frequency-
locked onto the input data. Without input data, the
LOCK signal may settle high or low. The use of a low-
pass RC filter is recommended to reduce the effects of
chatter that could be caused by high input-jitter con-
tent. For optimum jitter performance, keep the load
≥
15k
on the output of the LOCK pin.
RATESEL Input
The RATESEL input is used to select between input
data rates of 2.125Gbps and 1.0625Gbps. This func-
tion allows the repeater to sample data at the correct
data rate by selecting a divide-by-2 network, giving
maximum jitter tolerance at both data rates. The loop
bandwidth of the repeater scales with the selected fre-
quency; i.e., the loop-bandwidth at an input rate of
1.0625Gbps is half that at the input rate of 2.125Gbps.
See the
Applications Information
section for the func-
tionality of the RATESEL pin.
Applications Information
Input and Output Terminations
Figures 3 and 4 show models for the MAX3772
–
MAX3775 inputs and outputs, including packaging parasitics.
M
Dual-Rate Fibre Channel Repeaters
_______________________________________________________________________________________
7
ESD
STRUCTURES
IN+
0.2pF
PACKAGE
1.5nH
1.5nH
0.4pF
0.4pF
V
CC
- 0.450V
0.2pF
OPTIONAL
50
OR 75
1k
V
CC
Figure 3. Input Structure
IN+
IN-
LOOP
FILTER
VCO
÷
2
1
0
OUT+
OUT-
V
CC
CLK+
CLK-
LOCK
V
CC
D
Q
RATESEL
CLKEN
CF+
CF-
0.047
μ
F
PHASE/FREQ
DETECTOR
OPTIONAL
50
OR 75
OPTIONAL
100
OR 150
TERMINATION
Figure 2. Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3772CEE | Replaced by SN65LVDS048A : LVDS Quad Differential Line Receiver 16-SOIC -40 to 85 |
| MAX3773CEE | Replaced by SN65LVDS048A : LVDS Quad Differential Line Receiver 16-TSSOP -40 to 85 |
| MAX3775CEE | Quad LVDS Receiver with Flow-Through Pinout 16-SOIC -40 to 85 |
| MAX3774CEE | Process/Temperature Controller; Control Operation:Auto/Manual, Ramp/Soak, Stand By, Valve Positioning; Control Output Current:4-20 mA; Control Output Relay Rating:264 VAC / 2 A; Control Type:On/Off, PID RoHS Compliant: NA |
| MAX378 | High-Voltage, Fault-Protected Analog Multiplexers(高壓、故障保護(hù)模擬多路轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3772CEE | 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX3772CEE+ | 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX3772CEE+T | 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX3772CEE-T | 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX3772CEE-TG075 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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