|
Iterra |
iT3011
12.5 Gb/s High-Sensitivity Limiter Amplifier
Description
The iT3011 is a limiting amplifier for use as a post amplifier in OC-192 and STM-64 optical
receivers. Signals as small as +/-7 mVpp differential can be amplified to 1.28 Vpp differential.
Offset correction and output voltage control are provided. Both AC and DC coupling are allowed
at the input and output. The high sensitivity allows the device to be used at the output of a
transimpedance amplifier.
www.DataSheet4U.com
Features
3-dB bandwidth: 10 GHz
Differential gain: 42 dB
Saturated output: 640 mVpp on each output into
50 ohms
Input sensitivity 2.5 mVpp at BER<1E-12
Single bias supply: -5.2 V
Power consumption: 494 mW
Bias current: 95 mA
DC offset correction
Amplitude Voltage Control
Low RMS jitter
Low-cost JEDEC QFP-N (MO-220) package
Absolute
Maximum
Ratings
S ymbol Parameters/conditions
Vee1,2
Power supply voltage
Vd Applied voltage at data input (differential)
Vm Applied voltage at data input (single ended)
Ioffset(+),(-) Offset control current
T ch Maximum channel temperature
T stg Storage temperature
Min.
-8
-65
Max.
0
3
1.5
5
150
150
Units
V
V
V
mA
oC
°C
Recommended
Operating
Conditions
Symbol
Tc
Vee1
Vee2
Iee1+Iee2
Voffset (+)
Voffset (-)
Vct rl
Vd
Vm
Vindc
Parameters /conditions
Operating temperature range (T case)
Power supply voltage
Power supply voltage
T otal bias supply current
Offset control voltage
Offset control voltage
Amplitude voltage control
Applied peak to peak voltage at data input (differential)
Applied peak to peak voltage at data input (single ended)
Input/output interface
DC input voltage (with DC-coupled input)
Min.
0
-5.45
-5.45
80
-5
-5
-5.2
7
14
-0.5
Typ.
-5.2
-5.2
95
AC and DC coupled
Max.
85
-4.95
-4.95
110
5
5
0
1000
1000
0.5
Units
oC
V
V
mA
V
V
V
mV
mV
V
www.iterrac.com
This is a Production data sheet. See “Product Status Definitions”
on Web site or catalog for product development status.
August 17, 2005 Doc. 1167 Rev9
1
iTerra Communications
2400 Geng Road, Ste. 100, Palo Alto, CA 94303
Phone (650) 424-1937, Fax (650) 424-1938
Electrical
Characteristics
At ambient
Temperature
Vee1,2=-5.2 V
www.DataSheet4U.com
iT3011
12.5 Gb/s High-Sensitivity Limiter Amplifier
S ym bo l
P
G
B3dB
RLin
RLout
Vin
Vout
ΔVout
Voutdc
Trse
Tf se
Jpp
Param e te rs /con di ti on s
Pow er consumption
Differential small signal gain
3 dB bandw idth
Input return loss (up to 10 GHz)
Output return loss (up to 10 GHz)
Input sensitivity diff. input
(BER<1E-12, 223-1PRBS, 12.5Gb/s)
Output peak to peak voltage (either Q or /Q)
(Vctrl=0V for max. output voltage)
Vout sensitivity vs. bias (Vee=-5.2 V +/-5%)
Output DC voltage (DC coupled to 50 ohm load)
Rise time (20% - 80%)
Fall time (20% - 80%)
Jitter peak to peak
Min. Typ. Max.
416 494 572
41 42
9 10
12 20
10 15
+/-2.5
Un i ts
mW
dB
GHz
dB
dB
mVpp
590 640
mVpp
+/-11
-450 -350 -250
21 27
17 23
9 14
%
mV
ps
ps
ps
S-Parameter Data
(Measured on connectorized
Evaluation board)
Vee1=Vee2=-5.2 V
Iee1+Iee2=95 mA
iT3011 Single Ended Gain
48
44
40
36
32
28
24
20
16
12
8
4
0
0 2 4 6 8 10 12 14 16 18
Freq. (GHz)
iT3011 Input Return Loss
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0 2 4 6 8 10 12 14 16 18
Freq. (GHz)
iT3011 Output Return Loss
0
0
iT3011 Isolation
-5 -10
-10 -20
-15 -30
-20 -40
-25 -50
-30 -60
-35 -70
-40 -80
-45 -90
-50 -100
0 2 4 6 8 10 12 14 16 18
0 2 4 6 8 10 12 14 16 18
Freq. (GHz)
Freq. (GHz)
www.iterrac.com
This is a Production data sheet. See “Product Status Definitions”
on Web site or catalog for product development status.
August 17, 2005 Doc. 1167 Rev9
2
iTerra Communications
2400 Geng Road, Ste. 100, Palo Alto, CA 94303
Phone (650) 424-1937, Fax (650) 424-1938
|