SE1230Q SIGE | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 9
Technical content
Features
Single +3.3 V supply Power dissipation = 230 mW (typ) Noise figure < 12 dB Small signal gain = 23.5 dB differential Fully integrated AGC function On-chip 50 Ω input and output terminations Wide bandwidth (–3 dB) > 2.0 GHz Maximum input level of 200 mVpk AGC output level of 370 mVpk differential Loss of signal functionality Single-ended or differential operation Minimal external components Operating ambient temperature range = -40°C to +85°C Equivalent to Nortel Networks AC10
Ordering Information
SE1230Q 5 mm, 32 pin LQFP None Product Description SiGe Sem iconductor offers a portfolio of optic al networking IC s for use in high- performance optica l transmitter and receiver functi ons, from 155 Mb/s up to 12.5 Gb/s. SiGe Semic onductor’s SE1230 is a fu lly integrated AGC amplifier aimed primarily at SONET OC-48 and SDH STM-16 systems. The device may also be used in any datacom application with input data rates up to 2.5 Gb/s. The device is des igned with differential I/Os and signal l evels c ompatible with SiGe S emiconductor’s SE1030 a nd SE1031 trans impedance amplifiers. A system block diagr am is shown after the function al description, on page 4. Optimum perf ormance is provided by d ifferential connections but with ap propriate termi nations, the device ca n al so be use d in singl e-ended mode i f required by the application. Functional Block Diagram SE1230 AGC Amp
2.5 Gb/s
LOS_INIT Vref2 OUTN OUTP AGC_ADJ Vref1 Rectifier/ Comparator 49-DST-01 Rev 1.4 Apr 29/02 1 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Pin Out Diagram VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC GND GND GND GND INP INN GND GND OUTP GND OUTN GND DNC DNC DNC AGC_ADJ GND GND LOS LOS_INIT GND GND Top View Pin Out Description Pin No. Name Description
1 GND Negative supply (0 V)
2 GND Negative supply (0 V)
3 INP Non-inverting input (50 Ω impedance)
4 GND Negative supply (0 V)
5 INN Inverting input (50 Ω impedance)
6 GND Negative supply (0 V)
7 VCC Positive supply (3.3 V) 8 VCC Positive supply (3.3 V)
9 GND Negative supply (0 V)
10 GND Negative supply (0 V)
11 LOS Loss of signal output (open collector)
12 VCC Positive supply (3.3 V) 13 VCC Positive supply (3.3 V)
14 LOS_INIT Sets initial state of LOS output
49-DST-01 Rev 1.4 Apr 29/02 2 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Pin No. Name Description
15 GND Negative supply (0 V)
16 GND Negative supply (0 V)
17 VCC Positive supply (3.3 V) 18 VCC Positive supply (3.3 V)
19 GND Negative supply (0 V)
20 OUTN Inverted output (50 Ω impedance)
21 GND Negative supply (0 V)
22 OUTP Non-inverted output (50 Ω impedance)
23 GND Negative supply (0 V)
24 GND Negative supply (0 V)
25 VCC Positive supply (3.3 V) 26 VCC Positive supply (3.3 V)
27 AGC_ADJ AGC output level adjust
28 DNC Do not connect
29 DNC Do not connect
30 DNC Do not connect
31 VCC Positive supply (3.3 V) 32 VCC Positive supply (3.3 V) 49-DST-01 Rev 1.4 Apr 29/02 3 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Functional Description The SE1230 is configured as a variable gain amplifier, with a utomatic gai n contro l. It comprises a variable- gain b lock driving a 50 Ω outp ut driv er (see the functional block di agram on pa ge 1). T he device requires a single +3.3 V power supply. System Inputs The inputs INP and INN are d ifferential and are each internally terminated to 50 Ω . To avoid problems with offset or common-mod e voltage, use AC-c oupling for differential or single-ended connection (for the latter, AC-couple the unused input to ground via 50 Ω ). The maximum i nput level is 200 mVpk, appl ied sing le- ended or differentially. System Outputs The outputs OUTP and OUTN are differential and are each i nternally terminated to 50 Ω . To avoid problems with offset or common-mod e vol tage, u se AC-coupling for differ ential or single-ended connection (fo r the latter, AC-couple th e unus ed output to ground via 50 Ω ). The default output level (under AGC) is 370 mVpk differential. Automatic Gain Control (AGC) A rectifier com pares the output signal volt age with a reference l evel to invoke gai n co ntrol. W hen operating i n the contro lled gain re gion, the full y integrated long time-co nstant inte grator provi des filtered control voltages to the variable gain stages to maintain a fi xed outp ut level. This output l evel ma y be va ried by injecting cu rrent i nto AGC _ADJ (l eave unconnected if adjustment is not required). Loss of Signal A t wo-level co mparator block is use d to detect th e input si gnal l evel. If it d rops be low t he lo wer threshold, L OS g oes lo w. This o utput i s a n open collector t o a llow wired-OR conn ection t o other system a larm signals; it requ ires an external pu ll-up resistor. It goes hi gh only when th e i nput lev el exceeds the upper comparator threshold level. If this function is not requ ired, LOS ma y be left unconnected. By connecting an external series-RC to the LOS_INIT pin, LOS can be forced lo w on first po wer up if the signal l evel is bet ween t he upper a nd lo wer comparator thresholds. If this function is not required, leave LOS_INIT unconnected. System Block Diagram Receiver Module Clock & Data Recovery Clock Data 2
2.5 GHz
2 PIN SE1230Q
49-DST-01 Rev 1.4 Apr 29/02 4 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Absolute Maximum Ratings These are stress ratings o nly. Exposure to stresses beyond these maximum ratings may cause permanent damage to, or affect th e reliability of the d evice. Av oid operating the device outside the recommended operating conditions defined below. Symbol Parameter Min Max Unit VCC Supply Voltage –0.5 5.0 V VIO Voltage at any input or output –0.5 VCC+0.5 V IIO Current sourced into any input or output, except OUTP and OUTN –20 20 mA IIO Current sourced into pins OUTP and OUTN –40 40 mA VESD Electrostatic Discharge (100 pF, 1.5 kΩ ), all pins –2 2 kV Tstg Storage Temperature –65 150 °C Recommended Operating Conditions Symbol Parameter Min Typ Max Unit VCC Supply Voltage 3.1 3.3 3.5 V ILOS LOS Output Load Current 5 mA RLOSI LOS_INIT Resistor 1 kΩ CLOSI LOS_INIT Capacitor (increase value for slow power supply rise time) 1 µF IAGC_ADJ AGC Threshold Adjust Input Current (on AGC_ADJ pin) – note 1 0 150 µA Ta Operating Ambient Temperature –40 85 °C Note 1: This current can be produced by connecting a suitable resistor between VCC and AGC_ADJ. Symbol Parameter Min Typ Max Unit ICC Supply current 70 100 mA PD Power Dissipation 230 350 mW VAGC_ADJ Open-circuit AGC_ADJ Voltage 0.37 V VLOS Output Low Voltage on LOS, with ILOS = 1 mA 0.4 V RT Input/Output Termination Resistance 50 Ω 49-DST-01 Rev 1.4 Apr 29/02 5 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Symbol Parameter Min Typ Max Unit BW (3dB) Small Signal Bandwidth at –3dB point 2.0 GHz Gain Small Signal Gain (f = 100 MHz), differential input / output 21 23.5 26 dB Maximum Input Signal Level 200 Input Signal Level at AGC Threshold (IAGC_ADJ = 0 µA) – note 2 25 Lower LOS Threshold (LOS = low) 5 8 Vin Upper LOS Threshold (LOS = high) 12 18 mV pk (differential) Output AGC Signal Level (IAGC_ADJ = 0 µA) – note 3 250 370 500 Vout Output AGC Signal Level (IAGC_ADJ = 150 µA) – note 3 80 170 300 mV pk (differential) S11 Input Reflection Coefficient (< 1.3 GHz) –10 dB S22 Output Reflection Coefficient (< 1.3 GHz) –10 dB NF Noise Figure (diff. in / diff. out) 12 dB tR / tF Output Rise / Fall Time (Input rise / fall time = 20 ps) 120 ps Note 2: Vin at AGC threshold is calculated by dividing Vout by the small signal gain. Note 3: Measured at Vin = 100 mV pk , f = 100 MHz. For intermediate values of IAGC_ADJ the output amplitude can be estimated by linear interpolation. DC and AC electrical characteristics are specified over the recommended operating conditions, and with load resistor (RL) of 50 Ω , AC coupled via 100 nF, for each output. All characteristics are specified for differential signals on inputs and outputs. 49-DST-01 Rev 1.4 Apr 29/02 6 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final
Package Information
The device is packaged in a 5 mm, 32 pin plastic low profile quad flat pack (LQFP). Package Outline Package Dimensions Dimension Min (mm) Nom (mm) Max (mm) Lead Count 32 Lead Pitch (E) 0.5 Body Size (D1) 5.00 Component Tip-to-Tip (D) 7.00 Component Height (A) 1.60 Component Standoff 0.05 0.15 Body Thickness (A2) 1.35 1.40 1.45 Lead width (plated) (B) 0.17 0.22 0.27 Lead Thickness (plated) (C) 0.09 0.175 49-DST-01 Rev 1.4 Apr 29/02 7 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final Applications Information For optimum performance it is recommended that the device be used in differential mode with the circuit shown in the diagram below. Components connected to LOS, LOS_INIT and AGC_ADJ are optional, depending on whether or not the loss of signal and/or AGC adjust functions are required. AGC Amp SE1230Q INP LOS OUTP OUTN GND AGC_ADJ 0 V +3.3 V 100 nF CDR, 50 Ω inputs 100 nF 100 nF 100 nF INN LOS_INIT VCC TZ Amp, 50 Ω outputs To system alarm circuits RLOSI 1 kΩ CLOSI 1 µF 10 kΩ IAGC_ADJ 49-DST-01 Rev 1.4 Apr 29/02 8 of 9
LightCharger™ 2.5 Gb/s Automatic Gain Control Amplifier Final http://www.sige.com Headquarters: Canada Phone: +1 613 820 9244 Fax: +1 613 820 4933
2680 Queensview Drive
sales@sige.com San Diego United Kingdom Phone: +1 858 668 3541 South Building, Walden Court Fax: +1 858 668 3546 Parsonage Lane, Bishop’s Stortford Hertfordshire CM23 5DB Hong Kong Phone: +44 1279 464 200 Phone: +1 852 9177 1917 Fax: +44 1279 464 201 Product Preview The datasheet contains information from the product concept specification. SiGe Semiconductor Inc. reserves the right to change information at any time without notification. Preliminary Information The datasheet contains information from the design target specification. SiGe Semiconductor Inc. reserves the right to change information at any time without notification. Final The datasheet contains information from the final product specification. SiGe Semiconductor Inc. reserves the right to change information at any time without notification. Production testing may not include testing of all parameters. Information furnished is believed to be accurate and reliable and is provided on an “as is” basis. SiGe Semiconductor Inc. assumes no responsibility or liability for the direct or indirect consequences of use of such information nor for any infringement of patents or other rights of third parties, which may result from its use. No license or indemnity is granted by implication or otherwise under any patent or other intellectual property rights of SiGe Semiconductor Inc. or third parties. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SiGe Semiconductor Inc. products are NOT authorized for use in implantation or life support applications or systems without express written approval from SiGe Semiconductor Inc. RangerCharger TM , StreamCharger TM , PointCharger TM , and LightCharger TM are trademarks owned by SiGe Semiconductor Inc. Copyright 2002 SiGe Semiconductor All Rights Reserved 49-DST-01 Rev 1.4 Apr 29/02 9 of 9