HMC847LC5 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – 45 Gbps, 4:1 MUX WITH DUTY CYCLE CONTROL & PROGRAMMABLE OUTPUT VOLTAGE

HMC847LC5
v01.1010
45 Gbps, 4:1 MUX WITH DUTY CYCLE CONTROL
& PROGRAMMABLE OUTPUT VOLTAGE
3
3-1
Typical Applications
The HMC847LC5 is ideal for:
• SONET OC-768
• RF ATE Applications
• Broadband Test & Measurements
• Serial Data Transmission up to 45 Gbps
• High Speed DAC Interfacing
Functional Diagram
Features
Supports Data Rates up to 45 Gbps
Half Rate Clock Input
Quarter Rate Reference Clock Output
Fast Rise and Fall Times: 11 / 12 ps
Programmable Differential Output
Voltage Swing: 250 - 900 mVp-p
Single Supply: +3.3V
32 Lead Ceramic 5x5 mm SMT Package: 25 mm²
General Description
The HMC847LC5 is a 4:1 multiplexer designed for
45Gbps data serialization. The mux latches the four
differential inputs on the transition points of the input
clock. The device uses both rising and falling edges of
the half-rate clock to serialize the data. A quarter-rate
clock output, which is synchronous to the data output of
HMC847LC5, is generated on chip.
All clock and data inputs / outputs of the HMC847LC5
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 HMC847LC5 may be operated
either differentially or single-ended. The HMC847LC5
also features an output level control pin, VCTRL,
which allows for loss compensation or signal level
optimization. The VDCC pin controls the data output
cross-point & duty cycle. The HMC847LC5 operates
from a single +3.3V supply and is available in ROHS
compliant 5x5 mm SMT package.
Electrical Specifications, T_A = +25°C, Vcc = +3.3V
Parameter
Conditions
Min.
Typ.
Max
Units
Power Supply Voltage
± 5% Tolerance
3.13
3.3
3.47
V
Power Supply Current
Vctrl = 2.5V
480
540
600
mA
Output Amplitude Control Voltage Range (Vctrl)
1.7
2.5
3
V
Data Output Voltage Swing Range
Differential, peak-to-peak @ 40 Gbps
250
900
mVp-p
Duty Cycle Control Voltage Range (Vdcc)
Vdcc = 1.5V for 50% duty cycle
1
1.5
2
V
Duty Cycle Control Range
@ 40 Gbps
35
50
65
%
Clock Output Voltage Swing
Differential, peak-to-peak @ 10 GHz
480
580
680
mVp-p
Maximum Data Rate
45
Gbps
Maximum Clock Rate
Half Rate Clock
22.5
GHz
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]