HMC848LC5 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – 45 Gbps, 1:4 DEMUX WITH PROGRAMMABLE OUTPUT VOLTAGE

v01.1010
Typical Applications
The HMC848LC5 is ideal for:
• SONET OC-768
3
• RF ATE Applications
• Broadband Test & Measurements
• Serial Data Transmission up to 45 Gbps
• High Speed ADC Interfacing
Functional Diagram
HMC848LC5
45 Gbps, 1:4 DEMUX WITH
PROGRAMMABLE OUTPUT VOLTAGE
Features
Supports Data Rates up to 45 Gbps
Half Rate Clock Input
Quarter Rate Reference Clock Output
Fast Rise and Fall Times: 25 / 21 ps
Programmable Differential Output
Voltage Swing: 300 - 1000 mVp-p
Single Supply: +3.3V
32 Lead Ceramic 5x5 mm SMT Package: 25 mm²
General Description
The HMC848LC5 is a 1:4 demultiplexer designed for
data deserialization up to 45 Gbps. The device uses
both rising and falling edges of the half-rate clock to
sample the input data in sequence, D0-D3 and latches
the data onto the differential outputs. A quarter-rate
clock output generated on-chip can be used to clock
the data into other devices.
All clock and data inputs / outputs of the HMC848LC5
are CML and terminated on-chip with 50 Ohms to the
VCC, and may be DC or AC coupled. The inputs and
outputs of the HMC848LC5 may be operated either
differentially or single-ended. The HMC848LC5 also
features an output level control pin, VCTRL, which allows
for loss compensation or signal level optimization. The
HMC848LC5 operates from a single +3.3V supply and
is available in ROHS compliant 5x5 mm SMT package.
3-1
Electrical Specifications, T_A = +25°C, Vcc = 3.3V
Parameter
Power Supply Voltage
Power Supply Current
Output Amplitude Control Voltage Range (Vctrl)
Maximum Data Rate
Conditions
± 5% Tolerance
Vctrl = 2.5V
Min.
Typ.
Max
Units
3.13
3.3
3.47
V
480
540
600
mA
1.7
2.5
3
V
45
Gbps
Maximum Clock Rate
Input Amplitude (Data)
Input Amplitude (Clock)
[1] The un-used port is biased @ 3.3V
Half Rate Clock
Single-Ended, peak-to-peak ^[1]
Differential, peak-to-peak
Single-Ended, peak-to-peak ^[1]
Differential, peak-to-peak
22.5
150
150
100
100
800
1000
700
1000
GHz
mVp-p
mVp-p
mVp-p
mVp-p
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]