HMC749LC3C Datasheet, PDF (1/8 Pages) Hittite Microwave Corporation – 26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE OUTPUT VOLTAGE & POSITIVE SUPPLY

HMC749LC3C
v01.1208
26 GHz, T FLIP-FLOP w/ RESET, PROGRAMMABLE
OUTPUT VOLTAGE & POSITIVE SUPPLY
7
7 - 178
Typical Applications
Features
The HMC749LC3C is ideal for:
• Serial Data Transmission up to 26 Gbps
• High Speed Frequency Divider (up to 26 GHz)
• Broadband Test & Measurement
• RF ATE Applications
Functional Diagram
Supports Clock Frequencies up to 26 GHz
Differential & Singe-Ended Operation
Fast Rise and Fall Times: 18 / 17 ps
Low Power Consumption: 270 mW typ.
Programmable Differential
Output Voltage Swing: 600 - 1100 mV
Propagation Delay: 95 ps
Single Supply: +3.3V
16 Lead Ceramic 3x3mm SMT Package: 9mm²
General Description
The HMC749LC3C is a T Flip-Flop w/Reset desig-
ned to support clock frequencies as high as 26
GHz. During normal operation, with the reset pin not
asserted, the output toggles from its prior state on the
positive edge of the clock. This results in a divide-by-
two function of the clock input. Asserting the reset
pin forces the Q output low regardless of the clock
edge state (asynchronous reset assertion). Reversing
the clock inputs allows for negative-edge triggered
applications. The HMC749LC3C also features an
output level control pin, VR, which allows for loss
compensation or for signal level optimization.
All input signals to the HMC749LC3C are terminated
with 50Ω to Vcc on-chip, and may be either AC or DC
coupled. inputs or outputs can be connected directly
to a 50Ω Vcc terminated system, while DC blocking
capacitors may be used if the terminating system is
50Ω ground. The HMC749LC3C operates from a
single +3.3V DC supply and is available in a ceramic
RoHS compliant 3x3 mm SMT package.
Electrical Specifications, T_A = +25ºC Vcc = +3.3V
Parameter
Power Supply Voltage
Power Supply Current
Maximum Clock Rate
Input High Voltage
Input Low Voltage
Input Return Loss
Output Amplitude
Output High Voltage
Output Low Voltage
Conditions
Min.
3
2.8
2.1
Frequency <13 GHz
Single-Ended, peak-to-peak
Differential, peak-to-peak
Typ.
3.3
82
26
10
550
1100
3.25
2
Max
Units
3.6
V
mA
GHz
3.8
V
3.3
V
dB
mVpp
mVpp
mV
mV
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com