HMC856LC5 Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – 28 Gbps 5-BIT DIGITAL TIME DELAY WITH PROGRAMMABLE OUTPUT VOLTAGE

HMC856LC5
v01.0611
28 Gbps 5-BIT DIGITAL TIME DELAY
WITH PROGRAMMABLE OUTPUT VOLTAGE
3
3-1
Typical Applications
The HMC856LC5 is ideal for:
• SONET OC-192
• High Speed Serial Logic
• Clock & Data Recovery
• Broadband Test & Measurement Equipment
• Frequency Synthesis
• Matched Timing
Functional Diagram
Features
Differential & Single-Ended Operation
Supports Data Rates up to 28 Gbps
Fast Rise and Fall Times: 20 / 18 ps
Low Power Consumption: 610 mW typ.
Programmable Differential
Output Voltage Swing: 500 - 1350 mVp-p
Single Supply: -3.3V
32 Lead Ceramic 5x5 mm SMT Package: 25 mm²
General Description
The HMC856LC5 is a wideband time delay with a
5-bit digital control designed for timing compensation
or clock skew management applications. The time
delay provides nearly 100 ps of delay range with 3 ps
resolution and supports 28 Gbps data. The monotonic
delay is compensated for stable operation over both
power supply and temperature variation.
All differential inputs to the HMC856LC5 are CML and
terminated on-chip with 50 Ohms to the positive supply,
GND, and may be AC or DC coupled. The differential
CML outputs are source terminated to 50 Ohms and may
also be AC or DC coupled. Outputs can be connected
directly to a 50 Ohm ground terminated system or drive
devices with CML logic input. The control lines B4:B0
ae differential CML inputs terminated with 600 Ohms
to the positive rail, which supports lower power control
options. The HMC856LC5 features an output level
control pin, VR, which allows for loss compenstion or
signal level optimization. The HMC856LC5 operates
from a single -3.3 V supply and is available in ROHS-
compliant 5x5 mm SMT package.
Electrical Specifications, T_A = +25 °C, Vee = -3.3 V, VR = 0 V
Parameter
Power Supply Voltage
Power Supply Current
Maximum Data Rate
Input Voltage Range, CML
Input Differential Voltage
Output Rise / Fall Time
Random Jitter Jr
Deterministic Jitter, Jd
Input Return Loss
Conditions
Min.
-3.7
-1.5
0.1
Differential, 20% - 80%
rms
peak-to-peak, 2¹⁵-1 PRBS input ^[1]
Frequency <12 GHz
Typ.
-3.3
185
28
20 / 18
0.2
<2
10
Max
Units
-2.9
V
mA
Gbps
0.5
V
2.0
V
ps
ps rms
ps, p-p
dB
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]