MAX3969ETP+ Maxim Integrated Products, MAX3969ETP+ Datasheet

IC AMP LIMIT 200MBPS 20-TQFN

MAX3969ETP+

Manufacturer Part Number
MAX3969ETP+
Description
IC AMP LIMIT 200MBPS 20-TQFN
Manufacturer
Maxim Integrated Products
Type
Limiting Amplifierr
Datasheet

Specifications of MAX3969ETP+

Applications
Optical Networks
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Operating Supply Voltage
3 V, 5 V
Supply Current
22 mA
Operating Temperature Range
+ 85 C
Mounting Style
SMD/SMT
Number Of Channels
1
Power Dissipation
1099 mW
Amplifier Type
Limiting
Supply Voltage Range
2.97V To 5.5V
Amplifier Case Style
TQFN
No. Of Pins
20
Termination Type
SMD
Rohs Compliant
Yes
Filter Terminals
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Typical Application Circuits continued at end of data sheet.
Pin Configuration appears at end of data sheet.
The MAX3969 limiting amplifier with PECL data outputs is
ideal for low-cost ATM, Fast Ethernet, FDDI and ESCON
fiber optic receivers.
The MAX3969 features 1mV
integrated power detector that senses the input signal
power. It provides a received-signal-strength indicator
(RSSI), which is an analog indication of the power level.
Signal strength is also indicated by the complementary
TTL loss-of-signal (LOS) outputs and the PECL signal-
detect (SD) output, both of which indicate the power
level relative to a programmable threshold.
The threshold can be adjusted to detect signal ampli-
tudes as low as 2.7mV
disables switching of the data outputs by holding them
at a known state when the signal is below the pro-
grammed threshold.
The MAX3969 is available in die form and a 4mm x
4mm, 20-pin thin QFN package.
19-3251; Rev 1; 6/06
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.
SFP/SFF Transceivers
Fast Ethernet/FDDI Transceivers
155Mbps LAN ATM Transceivers
ESCON Receivers
FTTx Transceivers
________________________________________________________________ Maxim Integrated Products
*EXPOSED PAD (EP) ON MAX3969ETP ONLY.
P-P
General Description
FILT
IN
. An optional squelch function
TRANSIMPEDANCE
P-P
AMPLIFIER
input sensitivity and an
OUT+
Applications
OUT-
DIAGNOSTIC
200Mbps SFP Limiting Amplifier
MONITOR
4700pF
4700pF
SFP OPTICAL RECEIVER WITH DIAGNOSTICS
C
C
IN
IN
100kΩ
R1
SQUELCH
IN-
IN+
CZP
INV
C
1μF
AZ
CZN
R2
C
0.01μF
FILTER
MAX3969
♦ 1mV
♦ Loss-of-Signal Detector with Programmable
♦ TTL LOS and PECL Signal Detect
♦ Analog Received-Signal-Strength Indicator
♦ Output Squelch Function
♦ Compatible with 4B/5B Data Coding
FILTER
*Dice are designed to operate over a -40°C to +100°C junction
temperature (T
T
MAX3969ETP
MAX3969E/D
V
A
TH
Threshold
= +25°C.
PART
V
EP*
CC
P-P
V
GND
Input Sensitivity
Typical Application Circuits
CCO
OUT+
OUT-
LOS
LOS
J
SD
) range, but are tested and guaranteed only at
-40°C to +85°C 20 Thin QFN
TEMP RANGE
150Ω
0.1μF
Ordering Information
150Ω
0.1μF
0.1μF
PIN-
PACKAGE
Dice*
+2.97V TO +3.63V
HOST BOARD
V
CC
R
4.7kΩ
TO
10kΩ
LOS
Features
PKG CODE
T2044-2
1

Related parts for MAX3969ETP+

MAX3969ETP+ Summary of contents

Page 1

... PAD (EP) ON MAX3969ETP ONLY. Typical Application Circuits continued at end of data sheet. Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. 200Mbps SFP Limiting Amplifier ♦ ...

Page 2

SFP Limiting Amplifier ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage Range ( CCO Voltage at FILTER, RSSI, IN+, IN-, CZP, CZN, SQUELCH, INV, V ..................................................-0. LOS) .........................................±9mA TTL Output Current (LOS, PECL Output Current (OUT+, ...

Page 3

PECL outputs terminated with 50Ω SUPPLY CURRENT vs. TEMPERATURE (PECL OUTPUTS OPEN -40 - AMBIENT TEMPERATURE (°C) TRANSFER ...

Page 4

SFP Limiting Amplifier (V = +3.3V, PECL outputs terminated with 50Ω POWER-DETECT TIMING WITH SQUELCH (INPUT = 12mV , C = 0.01μF, P-P FILTER 15kΩ, 155Mbps PRBS) MAX3969 toc10 IN ...

Page 5

PIN NAME 17 Supply Voltage CC Squelch Input. The squelch function disables the data outputs by forcing OUT- low and OUT+ high 19 SQUELCH when the signal is below the power-detect threshold. Connect to GND or leave unconnected ...

Page 6

SFP Limiting Amplifier Each amplifier stage contains a logarithmic FWD, which indicates the RMS input signal power. The FWD outputs are summed together at the FILTER pin where the sig- nal is filtered by an external capacitor (C nected ...

Page 7

V CCO Figure 2. Equivalent PECL Output Circuit Figure 3. Equivalent TTL Output Circuit _______________________________________________________________________________________ 200Mbps SFP Limiting Amplifier 10 log(OPTICAL POWER) OUT- OUT+ ESD STRUCTURES Figure 4. Signal Levels for Power-Detect Threshold For SFP/SFF, FDDI, 155Mbps ATM LAN, Fast ...

Page 8

SFP Limiting Amplifier Applications Information For high-current density and reliable operation, the MAX3969 uses gold metalization. For best results, use gold-wire ball-bonding techniques. Use caution if attempting wedge bonding. Die pad size is 4 mils x 4 mils. Die ...

Page 9

SFP Limiting Amplifier V SQUELCH INV 1 FILTER 2 RSSI 3 IN- 4 IN+ 5 ORIGIN 6 7 GND GND _______________________________________________________________________________________ V V LOS ...

Page 10

SFP Limiting Amplifier SFF MSA RECEIVER FILT OUT- TRANSIMPEDANCE AMPLIFIER IN OUT+ *EXPOSED PAD (EP) PAD ON MAX3969ETP ONLY. 10 ______________________________________________________________________________________ Typical Application Circuits (continued 1μF C FILTER 0.01μF CZP CZN ...

Page 11

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2006 Maxim Integrated Products ...

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