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PDF HMC914LP4E Data sheet ( Hoja de datos )
| Número de pieza | HMC914LP4E | |
| Descripción | 12.5 Gbps LIMITING AMPLIFIER | |
| Fabricantes | Hittite Microwave Corporation | |
| Logotipo |  |
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www.DataSheet.co.kr
v02.0311
HMC914LP4E
12.5 Gbps LIMITING AMPLIFIER
w/ LOSS OF SIGNAL FEATURE
6
6-1
Typical Applications
The HMC914LP4E is ideal for:
•• SONET/SDH-Based Transmission Systems
•• OC-192 Fiber Optic Modules
•• 10 Gigabit Ethernet
•• 8x and 10x Fiber Channel
•• Wideband RF Gain Block
Features
Supports Data Rates up to 12.5 Gbps
Differential Small Signal Gain: 32 dB
Programmable Loss-of-Signal Detection (LOS)
Automatic Output Disable Mode
Adjustable Output Voltage Swing
up to 750 mVp-p Differential
Integrated DC Offset Correction
Received Signal Strength Indicator (RSSI) Output
24 Lead Plastic 4x4mm SMT Package: 16mm²
Functional Diagram
General Description
HMC914LP4E is a limiting amplifier designed to
support data transmission rates up to 12.5 Gbps.
The amplifier can operate over a wide range of input
voltage levels and provides constant-level differential
output swing. HMC914LP4E features a loss of signal
(LOS) indicator output where the input signal amplitude
threshold level can be adjusted using the LOSTH pin.
HMC914LP4E also features an output level control
pin, VAC, which allows for loss compensation or for
output signal level optimization. Differential output
signal swing can be adjusted up to 750 mVp-p. An
integrated DC offset compensation is also provided
on chip. The HMC914LP4E provides an analog RSSI
output voltage which is proportional to input signal
amplitude.
All single-ended input signals are terminated with
50 ohms to +3.3V on-chip, and may be either AC or
DC coupled. The outputs of the HMC914LP4E may
be operated either differentially or single-ended. The
HMC914LP4E operates from a single +3.3V DC supply
and is available in a plastic RoHS compliant 4x4 mm
SMT package.
Electrical Specifications, TA = +25° C, Vcc = +3.3V
Parameter
Power Supply Voltage, Vcc
Supply Current, Icc
Output Amplitude Control Voltage, VAC
Differential Small Signal Gain
Maximum Data Rate
Small Signal Bandwidth, f3dB-H
Low Frequency Cut-off, f3dB-L
Conditions
VAC = 1V
VAC = 1V
3-dB cutoff frequency
100 nF off chip cap is used
Min.
3
0.4
12.5
Typ.
Max.
Units
3.3 3.6 V
47 mA
2.2 V
32 dB
Gbps
9.5 GHz
10 kHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
v02.0311
6
Absolute Maximum Ratings
Power Supply Voltage (VCC)
Input Voltage (INP-INN)
Output Amplitude Control Voltage (VAC)
Power down input voltage (DISABLE)
Auto power down enable voltage
(AOPDWNENB)
Loss of Signal threshold programming
current (LOSTH)
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 13.6 mW/°C above 85 °C )
Thermal Resistance
(channel to package bottom)
Storage Temperature
Operating Temperature
3.8V to -0.5V
1V to 3.3V
0 to 2.4V
0 to 3.6V
0 to 3.6V
±3 mA
125 °C
0.54 W
73.5 °C/W
-55 to 125 °C
-40 to +85 °C
HMC914LP4E
12.5 Gbps LIMITING AMPLIFIER
w/ LOSS OF SIGNAL FEATURE
11.25 Gbps Differential Output Eye Diagram
for 200 mVp-p Input
10 Gbps Differential Output Eye Diagram
for 10 mVp-p Input
Eye Amp
Rise Time
Fall Time
p-p Jitter
Current
481 mV
30.00 ps
28.67 ps
9.333 ps
Minimum
481 mV
30.00 ps
28.67 ps
6.667 ps
Maximum
482 mV
31.33 ps
29.33 ps
9.333 ps
Total Meas
83
83
83
83
Time Scale: 30 ps/div
Amplitude Scale: 100 mV/div
Test Conditions:
VCC = 3.3V, VAC = 1V
Data Input:
Differential 200 mVp-p 11.25 Gbps NRZ PRBS 223-1 pattern
Current
Eye Amp 358 mV
Rise Time 36.00 ps
Fall Time 35.33 ps
p-p Jitter 15.333 ps
Minimum
358 mV
36.00 ps
34.67 ps
12.000 ps
Maximum
358 mV
37.33 ps
36.00 ps
15.333 ps
Total Meas
81
81
81
81
Time Scale: 30 ps/div
Amplitude Scale: 90 mV/div
Test Conditions:
VCC = 3.3V, VAC = 1V
Data Input: Differential 10 mVp-p 10 Gbps NRZ PRBS 223-1 pattern
6-5
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
6
v02.0311
HMC914LP4E
12.5 Gbps LIMITING AMPLIFIER
w/ LOSS OF SIGNAL FEATURE
Application Information
Loss of Signal and Setting the Input Signal Threshold
The HMC914LP4E features an input signal level monitoring over a broad range. En external resistor is used at LOSTH
pin to program the input signal amplitude threshold for generating the LOS output indicator. When this pin is kept
floating LOSTH level is set internally to single-ended 63 mVp-p.
LOS is an open collector output suitable for wired-OR connection for parallel alarm signals; it requires an external
pull-up resistor, RLOS. If the input signal level drops below the asserted threshold level then, LOS output DC voltage
goes low. It goes high only when the input level exceeds the upper hysteresis threshold level. When LOSTH pin is
floating then the de-assert level will be single-ended 110 mVp-p. If this function is not required, the LOS output can
be left floating.
If input threshold value is desired to be higher than 63 mVp-p then an external RTH resistor should be connected
between LOSTH pin and VCC. Desired threshold value can be obtained by changing the value of the resistor RTH as
shown in the figures below.
LOS Assert/Deassert Voltage vs. Rth
400
300
LOS assert
LOS deassert
200
100
0
0 100 200 300 400 500
RESISTOR (kOhm)
LOS Hysteresis vs. Rth
5
4
3
2
1 Hysteresis = 20*log{LOS deassert/LOS assert}
0
0 100 200 300 400 500
RESISTOR (kOhm)
6 - 11
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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| PDF Descargar | [ Datasheet HMC914LP4E.PDF ] | |
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