iT3010E
10 GHz Medium-Gain Differential Amplifier
Description
Features
Absolute
Maximum
Ratings
Recommended
Operating
Conditions
The iT3010E is a RoHS-6-compliant packaged differential amplifier designed for use in 10.7
Gb/s and 12.5 Gb/s (OC-192) optical transmitters and receivers as a gain stage with limiting
functionality. It allows single-ended input signals from 350 mVpp up to 900 mVpp, or differential
signals from 250 mVpp to 1800 mVpp to be limited at a constant differential output voltage of
3.8 Vpp. The iT3010E can be used as predriver for OC-192 optical modulator driver amplifiers.
Output voltage control and external offset correction are provided. The amplifier also provides
excellent linear performance when operating at lower output voltage. Both AC and DC input
coupling are allowed. DC-coupled SCFL differential input (input HIGH voltage = 0 V, and input
LOW voltage = -900 mV) are allowed.
Limiting function with 3.8 Vpp differential output
3 dB Bandwidth: 10 GHz
Differential gain: 23.5 dB
Standard bias supply: -5 V or -5.2V, +5 V
Power consumption: 855 mW
<1% total harmonic distortion at Pout = 0 dBm
Low group delay
Low jitter
Output voltage control
AC and DC input coupling (SCFL compatible)
AC and DC output coupling
RoHS-6-compliant 4x4 mm QFN (MO-220) package
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
Sym bol
Param eters/conditions
Min.
Max.
Units
Vee
Pow er supply voltage
-8
0
V
Vcc
Pow er supply voltage
0
Vd
Applied voltage at data input (differential)
Vm
Applied voltage at data input (single ended)
IDCin (+),(-)
Offset control current
Tch
Maximum channel temperature
Tstg
Storage temperature
-65
Min.
8
V
3
V
1.5
V
5
mA
150
°C
150
°C
Symbol
Parameters/conditions
Tc
Operating temperature range (Tcase)
Typ.
Vee
Negative pow er supply voltage
-5.45
Vcc
Positive pow er supply voltage
4.75
Vcb2
First internal bias control voltage
Iee
Negative supply current
86
101
116
mA
Icc
Positive supply current
60
70
81
mA
V DCin
Offset control voltage
-5
5
V
Vctrl
Voltage control pin
-2.7
0
V
Vm
Applied peak-peak voltage at data input (single ended)
350
900
mV
Vd
Applied peak-peak voltage at data input (differential)
250
1800
mV
Vindc
DC input voltage (w ith DC-coupled input)
-0.5
R
Data bit rate
0
Max.
85
-5
-4.75
5
5.25
0
Units
o
C
V
V
V
0
V
12.5
Gb/s
For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937,
e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com.
1
iT3010E
10 GHz Medium-Gain Differential Amplifier
Symbol Parameters/Conditions
Electrical
Characteristics
At ambient
temperature
Vee =- 5 V
Vcc = +5 V
Min.
Typ.
Max.
P
Pow er consumption
730
855
985
mW
Z DCin
Input impedance at DCin, /DCin
900
1000
1100
Ohm
G
Differential small signal gain
22.5
23.5
dB
B3dB
3 dB bandw idth
9
10
GHz
RLin
Input return loss (up to 10 GHz)
15
20
dB
RLout
Output return loss (up to 10 GHz)
8
10
dB
3.5
3.8
V
+/-11
%
100
200
300
mV
ps
Output peak-peak voltage (differential)
Vout
(Vctrl =-2.7V for max. output voltage)
Units
∆Vout
Voutdc
Vout sensitiviy vs Bias (Vee=-5 V +/-5%, Vcc=5 V +/-5%)
Trse
Output rise time (single ended at maximum output voltage)
28
35
Tfse
Output fall time (single ended at maximum output voltage)
22
28
ps
JRMS
RMS jitter degradation (*)
1
1.7
ps
DC output voltage (DC coupled to 50 ohm load)
(*) JRMS=sqrt((JRMS_dut)2-(JMRS_thru)2)
S-Parameter Data
Measured on
connectorized
evaluation board
iT3010 Input Return Loss
iT3010 Single Ended Linear Gain
0
-5
-10
-15
S11(dB)
Gain (dB)
Vee = -5 V, Vcc = +5 V
22
20
18
16
14
12
10
8
6
4
2
0
-20
-25
-30
-35
-40
-45
0
2
4
6
8
10
12
14
-50
16
0
Freq. (GHz)
2
4
-2
-10
-4
-20
-6
-30
-8
-40
-10
-12
-70
-80
-18
-90
-20
-100
8
Freq. (GHz)
14
16
12
14
16
-60
-16
6
12
-50
-14
4
10
iT3010 Isolation
0
S12 (dB)
S22 (dB)
iT3010 Output Return Loss
2
8
Freq. (GHz)
0
0
6
10
12
14
16
0
2
4
6
8
10
Freq. (GHz)
For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937,
e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com.
2
iT3010E
10 GHz Medium-Gain Differential Amplifier
Eye Diagram
Performance
Vee = -5 V
Vcc = +5 V
Linear performance
Bit rate: 10.7 Gb/s
Vin=+/-50 mVpp, Vout=+/-750 mVpp
Saturated performance
Bit rate: 10.7 Gb/s
Vin=+/-450 mVpp, Vout=+/-1.9 Vpp
Linear performance
Bit rate: 12.5 Gb/s
Vin=+/-50 mVpp, Vout=+/-750 mVpp
Saturated performance
Bit Rate: 12.5 Gb/s
Vin=+/-450 mVpp, Vout=+/-1.9 Vpp
Voltage Control
Bit rate: 10.7 Gb/s
Vctrl=-1.5 V, Vout=1.7 Vpp
Bit rate: 10.7 Gb/s
Vctrl=-1.1V, Vout=1.0 Vpp
For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937,
e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com.
3
iT3010E
10 GHz Medium-Gain Differential Amplifier
Eye Crossing vs Vin
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Eye Crossing (%)
Performance
As Function of
Input Voltage
Vout (+/-Vpp)
Vout vs Vin
0.2
0.3
0.4
0.5
0.6
0.7
0.8
70
68
65
63
60
58
55
53
50
48
45
43
40
38
35
33
30
0.2
0.9
0.3
0.4
Vin (+/-Vpp)
3E-12
0.7
0.8
0.9
3E-12
Jitter Degradation RMS (s)
Jitter Degradation RMS (s)
0.6
Jitter Degradation RMS vs Vin @ 12.5 Gb/s
Jitter Degradation RMS vs Vin @ 10.7 Gb/s
2.7E-12
2.4E-12
2.1E-12
1.8E-12
1.5E-12
1.2E-12
9E-13
6E-13
3E-13
0
2.7E-12
2.4E-12
2.1E-12
1.8E-12
1.5E-12
1.2E-12
9E-13
6E-13
3E-13
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.2
0.3
0.4
Vin (+/-Vpp)
3.6E-11
3.6E-11
3.2E-11
3.2E-11
2.8E-11
2.8E-11
Time (s)
4.0E-11
2.4E-11
2E-11
1.6E-11
Vee=-5V, Rise Time
8E-12
0.6
0.7
0.8
0.9
Rise/Fall Time (20%-80%) vs Vin @ 10.7Gb/s
4E-11
1.2E-11
0.5
Vin (+/-Vpp)
Rise/Fall Time (20%-80%) vs Vin @ 12.5 Gb/s
Time (s)
0.5
Vin (+/-Vpp)
2.4E-11
2.0E-11
1.6E-11
1.2E-11
Vee=-5V, Rise Time
8.0E-12
Vee=-5V, Fall Time
4E-12
Vee=-5V, Fall Time
4.0E-12
0
0.0E+00
0.2
0.3
0.4
0.5
0.6
Vin (+/-Vpp)
0.7
0.8
0.9
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Vin (+/-Vpp)
For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937,
e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com.
4
iT3010E
10 GHz Medium-Gain Differential Amplifier
Total Harmonics Distortion vs Frequency
0
-6
-12
-18
dBc
Power
Performance
And Harmonic
Distortion
Pout (dBm)
Pout vs Frequency
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-24
-30
-36
P1dB
P3dB
-42
-48
-54
-60
2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10
0
1
2
3
Freq. (GHz)
Vee = -5 V, Vcc = +5 V, Iee = 105 mA, Icc = 65 mA
Device
Diagram
/Q
1kΩ
50Ω
Vee
Vcc
Vctrl
1 µF
Bias Conditions
Vcb2
Q
Din
iT3010E
/Din
/DCin
Output
/Q
Vee
Vcc
-5.0 V
+5 V
1µF
8
Q
/DCin
Input
7
50Ω
1kΩ
/Din
DCin
6
Vcb2
Din
Recommended
Operational Setup
5
At Pout = 0 dBm. Vee = -5 V, Vcc = +5 V,
Iee = 105 mA, Icc = 65 mA
Vctrl
DCin
4
Freq. (GHz)
560 pF
560 pF
1 µF
For Vee = -5V
• Apply +5.0 V at Vcc
• Apply -5 V at Vee
• Vcb2 =0 V
• Vctrl = -2.7 V or open for maximum
output voltage
• Vctrl from –2.7V to –1V for output
voltage control
For Vee = -5.2 V bias application
• Apply +5 V at Vcc
• Apply -5.2 V at Vee
• Vcb2 = 0 V
• Vctrl =-1.8 V for maximum output
voltage
• Vctrl from –1.8V to –1V for output
voltage control
For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937,
e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com.
5
iT3010E
10 GHz Medium-Gain Differential Amplifier
“E” Package
Drawings,
Pinouts,
Marking
Notes:
Dimensions in
inches [mm]
Tolerances are
±0.0039 in. (0.100 mm)
Package drawing
encompasses JEDEC
MO-220 Version
VGGC-2.
See iTerra Application
Note 10 for
recommended pad
layout. RoHS parts
are backward
compatible if
application note pad
layout is followed.
Lead frame material is
copper alloy.
Mold compound is
UL94V0 compliant.
Lead finish is NiPdAu.
Marking Information
iTerra
MMMMEA
XXNNNN
LLYYWW
Where,
MMMM = part no.
E = Package Type
A =Temp. Range
XX = Wafer Lot
NNNN = Ser. No.
LLYYWW =MFG D/C
Pinouts
P1: GND
P2: Din (RF input)
P3: /Din (/RF input)
P4: GND
P5: /DCin
P6: Vee
P7: N/C
P8: N/C
P9: GND
P10: /Q (/RF Out)
P11: Q (RF Out)
P12: GND
P13: Vcb2
P14: Vctrl (voltage control)
P15: Vcc
P16: DCin
For pricing, delivery, and ordering information, please contact GigOptix at (650) 424-1937,
e-mail: sales@gigoptix.com, or visit our site at www.GigOptix.com.
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