參數(shù)資料
型號: MAX3991UTG+T
廠商: Maxim Integrated Products
文件頁數(shù): 1/12頁
文件大小: 0K
描述: IC DATA RECOVERY W/AMP 24-TQFN
標準包裝: 2,500
類型: 時鐘和數(shù)據(jù)恢復(CDR)
PLL:
主要目的: SONET/SDH.XFP 光學接收器
輸入: CML
輸出: CML
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 693.5MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-WFQFN 裸露焊盤
供應商設備封裝: 24-TQFN-EP(4x4)
包裝: 帶卷 (TR)
General Description
The MAX3991 is a 10Gbps clock and data recovery
(CDR) with limiting amplifier IC for XFP optical receivers.
The MAX3991 and the MAX3992 (CDR with equalizer)
form a signal conditioner chipset for use in XFP trans-
ceiver modules. The chipset is XFI compliant and offers
multirate operation for data rates from 9.95Gbps to
11.1Gbps.
The MAX3991 has 7mVP-P input sensitivity (BER
≤ 10-12),
which allows direct connection to a transimpedance
amplifier without the use of a stand-alone limiting amplifi-
er. The phase-locked loop (PLL) is optimized for jitter tol-
erance and provides 0.6UI of high-frequency tolerance
in SONET, Ethernet, and Fibre-Channel applications. The
MAX3991 output provides 27% margin to the XFP eye
mask specification.
An AC-based power detector toggles the loss-of-signal
(LOS) output when the input signal swing is below the
user-programmed assert threshold. An external refer-
ence clock, with frequency equal to 1/64 or 1/16 of the
serial data rate is used to aid in frequency acquisition. A
loss-of-lock (LOL) indicator is provided to indicate the
lock status of the receiver PLL.
The MAX3991 is available in a 4mm x 4mm, 24-pin QFN
package. It consumes 350mW from a single +3.3V supply
and operates over the 0°C to +85°C temperature range.
Applications
9.95Gbps to 11.1Gbps Optical XFP Modules
SONET OC-192/SDH STM-64 XFP Transceivers
10.3Gbps/11.1Gbps Ethernet XFP Transceivers
10.5Gbps Fibre-Channel XFP Transceivers
10Gbps DWDM Transceivers
Features
Multirate Operation from 9.95Gbps to 11.1Gbps
7mVP-P Input Sensitivity (BER ≤ 10-12)
0.6UIP-P Total High-Frequency Jitter Tolerance
Low-Output Jitter Generation: 7mUIRMS
Low-Output Deterministic Jitter: 4.6psP-P
XFI-Compliant Output Interface
LOS Indicator with Programmable Threshold
LOL Indicator
Power Dissipation: 350mW
MAX3991
10Gbps Clock and Data Recovery
with Limiting Amplifier
________________________________________________________________ Maxim Integrated Products
1
19-3486; Rev 1; 11/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX3991UTG
0°C to +85°C
24 QFN
T2444-4
MAX3991UTG+*
0°C to +85°C
24 QFN
T2444-4
VCC
1
GND
2
SDI+
3
SDI-
4
GND
5
VCC
6
VCC
18
GND
17
SDO+
16
SDO-
15
GND
14
VCC
13
SCLKO+
7
SCLKO-
8
FCTL2
9
POL
10
V
CC
11
CFIL
12
VTH
24
FCTL1
23
REFCLK-
22
REFCLK+
21
LOS
20
LOL
19
MAX3991
4mm x 4mm QFN*
*THE EXPOSED PAD MUST BE CONNECTED TO CIRCUIT-BOARD GROUND FOR
PROPER THERMAL AND ELECTRICAL PERFORMANCE.
TOP VIEW
Pin Configuration
Typical Application Circuit appears at end of data sheet.
*Future product—contact factory for availability.
+Denotes lead-free package.
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