HMC914LP4E Datasheet, PDF (1/12 Pages) Hittite Microwave Corporation – 12.5 Gbps LIMITING AMPLIFIER w/ LOSS OF SIGNAL FEATURE

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, T_A = +25° C, Vcc = +3.3V
Parameter
Conditions
Min.
Typ.
Max.
Units
Power Supply Voltage, Vcc
3
3.3
3.6
V
Supply Current, Icc
VAC = 1V
47
mA
Output Amplitude Control Voltage, VAC
0.4
2.2
V
Differential Small Signal Gain
VAC = 1V
32
dB
Maximum Data Rate
12.5
Gbps
Small Signal Bandwidth, f_3dB-H
Low Frequency Cut-off, f_3dB-L
3-dB cutoff frequency
100 nF off chip cap is used
9.5
GHz
10
kHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]