Document
iT3010 10 GHz Medium-Gain Differential Amplifier
Description
The iT3010 is a 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 iT3010 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 distortions @ Pout=0 dBm Low group delay Low jitter Output voltage control AC and DC input coupling (SCFL compatible) AC and DC output coupling Low-cost package, JEDEC QFP-N (MO-220)
Sym bol Vee Vcc Vd Vm IDC
IN
www.DataSheet4U.com
Features
Absolute Maximum Ratings
Param eters/conditions Pow er supply voltage Pow er supply voltage Applied voltage at data input (differential) Applied voltage at data input (single ended)
Min. -8 0
Max. 0 8 3 1.5 5 150
Units V V V V mA °C °C
(+),(-)
Offset control current Maximum channel temperature Storage temperature -65
Tch Tstg
150
Recommended Operating Conditions
Symbol
Tc Vee Vcc Vcb2 Iee Icc V DC Vm Vd Vindc R
IN
Parameters/conditions
Operating temperature range (Tcase) Negative pow er supply voltage Positive pow er supply voltage First internal bias control voltage Negative supply current Positive supply current Offset control voltage Voltage control pin Applied peak-peak voltage at data input (single ended) Applied peak-peak voltage at data input (differential) DC input voltage (w ith DC-coupled input) Data bit rate
Min.
0 -5.45 4.75 86 60 -5 -2.7 350 250 -0.5
Typ.
-5 5 0 101 70
Max.
85 -4.75 5.25 116 81 5 0 900 1800 0 12.5
Units
o
C
V V V mA mA V V mV mV V Gb/s
Vctrl
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. 1178 Rev 9 1
iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938
iT3010 10 GHz Medium-Gain Differential Amplifier
Electrical Characteristics
At ambient temperature Vee=-5V, Vcc=+5V
Symbol Parameters/Conditions
P Z DCIn G B3dB RLin RLout Pow er consumption Input impedance at DCIn, /DCIn Differential small signal gain 3 dB bandw idth Input return loss (up to 10 GHz) Output return loss (up to 10 GHz) Output peak-peak voltage (differential) (Vctrl =-2.7V for max. output voltage) Vout sensitiviy vs Bias (Vee=-5 V +/-5%, Vcc=5 V +/-5%) DC output voltage (DC coupled to 50 ohm load) Output rise time (single ended) Output fall time (single ended) RMS jitter degradation (*) 100 200 28 20 1
Min.
730 900 22.5 9 15 8 3.5
Typ.
855 1000 23.5 10 20 10 3.8
Max.
985 1100
Units
mW Ohm dB GHz dB dB V
www.DataSheet4U.com
Vout Δ Vout Voutdc Trse Tfse JRMS
+/-11 300 30 25 1.5
% mV ps ps ps
(*) JRMS=sqrt((JRMS_dut)2-(JMRS_thru)2)
S-Parameter Data
(Measured on connectorized Ev. Board)
iT3010 Single Ended Linear Gain
22 20 18 16 14 12 10 8 6 4 2 0 0 2 4 6 8
Freq. (GHz)
iT3010 Input Return Loss
0 -5 -10 -15
S11(dB)
Vee=-5V, Vcc=+5V
Gain (dB)
-20 -25 -30 -35 -40 -45 -50 0 2 4 6 8
Freq. (GHz)
10
12
14
16
10
12
14
16
iT3010 Output Return Loss
0 -2 -4 -6
iT3010 Isolation
0 -10 -20 -30 S12 (dB) -40 -50 -60 -70 -80 -90 -100
S22 (dB)
-8 -10 -12 -14 -16 -18 -20 0 2 4 6 8 10 12 14 16
0
2
4
6
Freq. (GHz)
8 10 Freq. (GHz)
12
14
16
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. 1178 Rev 9 2
iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938
iT3010 10 GHz Medium-Gain Differential Amplifier
Eye Diagram Performance
Vee=-5 V, Vcc=+5 V
www.DataSheet4U.com
Linear performance Bit rate: 10.7 Gb/s Vin=+/-50 mVpp, Vout=+/-750 mVpp
Linear performance Bit rate: 12.5 Gb/s Vin=+/-50 mVpp, Vout=+/-750 mVpp
Saturated performance Bit rate: 10.7 Gb/s Vin=+/-450 mVpp, Vout=+/-1.9 Vpp
Saturated performance Bit Rate: 12.5 Gb/s Vin=+/-450 mVpp, Vout=+/-1.9 Vpp
Voltage Control
Bit rate: 10.7 Gb/s Vtrl=-1.5 V, Vout=1.7 Vpp 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. 1178 Rev 9 3
Bit rate: 10.7 Gb/s Vtrl=-1.1V, Vout=1.0 Vpp
iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 9430.