HMC679LC3C
v06.0514
26 GHz, T FLIP-FLOP w/ RESET &
PROGRAMMABLE OUTPUT VOLTAGE
Typical Applications
The HMC679LC3C is ideal for:
Features
Supports Clock Frequencies up to 26 GHz
Differential or Single-Ended Operation
Fast Rise and Fall Times: 18 / 17 ps
Low Power Consumption: 270 mW typ.
Programmable Differential Output Voltage Swing:
600 - 1100 mVp-p
Propagation Delay: 95 ps
Single Supply: -3.3 V
16 Lead Ceramic 3 x 3 mm SMT Package: 9 mm
2
HIGH SPEED LOGIC - SMT
• Serial Data Transmission up to 26 Gbps
• High Speed Frequency Divider (up to 26 GHz)
• Broadband Test & Measurement
• RF ATE Applications
Functional Diagram
General Description
The HMC679LC3C 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.
All differential inputs to the HMC679LC3C are CML and
terminated on-chip with 50 Ohms to the positive supply,
GND, and may be DC or AC coupled. Outputs can be
connected directly to a 50 Ohm ground-terminated
system or drive devices with CML logic input. The
HMC679LC3C also features an ouput level control pin,
VR, which allows for loss compensation or signal level
optimization. The HMC679LC3C operates from a single
-3.3 V supply and is available in ROHS-compliant 3x3
mm SMT package.
Electrical Specifications, TA = +25 ºC,
Vee = -3.3 V, VR = 0 V
Parameter
Power Supply Voltage
Power Supply Current
Maximum Clock Rate
Input Voltage Range
Input Differential Range
Input Return Loss
Output Amplitude
Output High Voltage
Output Low Voltage
Frequency <23 GHz
Single-Ended, peak-to-peak
Differential, peak-to-peak
-1.5
0.1
10
550
1100
-10
-560
Conditions
Min.
-3.6
Typ.
-3.3
82
26
0.5
2.0
Max
-3.0
Units
V
mA
GHz
V
Vp-p
dB
mVp-p
mVp-p
mV
mV
1
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC679LC3C
v06.0514
26 GHz, T FLIP-FLOP w/ RESET &
PROGRAMMABLE OUTPUT VOLTAGE
Electrical Specifications
(continued)
Parameter
Output Rise / Fall Time
Output Return Loss
Random Jitter Jr
Deterministic Jitter, Jd
Propagation Delay Clock to Q, td
Propagation Delay Reset to Q, tdr
VR Pin Current
VR Pin Current
VR = 0.0 V
VR = +0.4 V
Conditions
Differential, 20% - 80%
Frequency <13 GHz
rms
[1]
peak-to-peak, 2
15
-1 PRBS input
[2]
2
95
125
2
3.5
Min.
Typ.
18 / 17
10
0.2
Max
Units
dB
ps rms
ps, p-p
ps
ps
mA
mA
[1] Upper limit of random jitter, J
R
, determined by measuring and integrating output phase noise with a sinusodal input at 5, 10, and 13.5 GHz over
temperature.
[2] Deterministic jitter calculated by simultaneously measuring the jitter of a 200 mV, 12.5 GHz, 2
15
-1 PRBS input, and a single-ended output
DC Current vs. Supply Voltage
100
95
DC CURRENT (mA)
90
85
80
75
70
65
60
-3.7
[1][2]
Output Differential Voltage vs.
Supply Voltage
[1][2]
1500
VOUT DIFFERENTIAL (mVp-p)
1400
1300
1200
1100
1000
900
800
-3.7
+25 C
+85 C
-40 C
+25C
+85C
-40C
-3.6
-3.5
-3.4
-3.3
-3.2
-3.1
SUPPLY VOLTAGE (V)
-3
-2.9
-3.6
-3.5
-3.4
-3.3
-3.2
-3.1
SUPPLY VOLTAGE (V)
-3
-2.9
Rise / Fall Time vs. Supply Voltage
22
[1][3]
Output Differential Voltage
vs. Input Frequency
[1]
1200
VOUT DIFFERENTIAL (mVp-p)
1100
1000
900
800
700
600
500
400
8
12
16
20
24
28
32
36
INPUT FREQUENCY (GHz)
20
RISE/FALL TIME (ps)
tr
tf
18
16
14
12
-3.7
-3.6
-3.5
-3.4
-3.3
-3.2
-3.1
-3
-2.9
SUPPLY VOLTAGE (V)
[1] VR = 0.0 V
[2] Frequency = 13 GHz
[3] Frequency = 24 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HIGH SPEED LOGIC - SMT
2
ps
HMC679LC3C
v06.0514
26 GHz, T FLIP-FLOP w/ RESET &
PROGRAMMABLE OUTPUT VOLTAGE
Output Differential Voltage vs. VR
[2]
1400
Rise / Fall Time vs. VR
[3]
20
HIGH SPEED LOGIC - SMT
VOUT DIFFERENTIAL (mVp-p)
1300
1200
1100
1000
900
800
700
600
500
-1.2
-1
-0.8
-0.6
-0.4
VR (V)
-0.2
0
0.2
0.4
10
-1.2
-1
-0.8
-0.6
-0.4
VR (V)
-0.2
0
0.2
0.4
+25 C
+85 C
-40 C
18
RISE/FALL TIME (ps)
16
14
tr
tf
12
Input Return Loss vs. Frequency
[4]
5
0
RETURN LOSS (dB)
-5
-10
-15
-20
-25
-30
-35
-40
0
4
8
12
16
20
24
28
FREQUENCY (GHz)
Eval Board
Device
Output Return Loss vs. Frequency
[4]
5
0
RETURN LOSS (dB)
-5
-10
-15
-20
-25
-30
-35
-40
0
2
4
6
8
10
12
14
FREQUENCY (GHz)
Eval Board
Device
Reset Input Return Loss vs. Frequency
[4]
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
-35
-40
0
2
4
6
8
10
12
14
FREQUENCY (GHz)
Eval Board
Device
[1] VR = 0.0 V
[2] Frequency = 13 GHz
[3] Frequency = 24 GHz
[4] Device measured on evaluation board with single-
ended, time-domain gating
3
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC679LC3C
v06.0514
26 GHz, T FLIP-FLOP w/ RESET &
PROGRAMMABLE OUTPUT VOLTAGE
Output Waveform
[1] Test Conditions:
Waveform generated with a CW signal source input at 26 GHz.
Diagram data presented on a Tektronix CSA 8000.
Timing Diagram
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
HIGH SPEED LOGIC - SMT
4
HMC679LC3C
v06.0514
26 GHz, T FLIP-FLOP w/ RESET &
PROGRAMMABLE OUTPUT VOLTAGE
Absolute Maximum Ratings
Power Supply Voltage (Vee)
-3.75 V to +0.5 V
-2 V to +0.5 V
-1.5 V to +1 V
0.68 W
59 °C/W
125 °C
-65 °C to +150 °C
-40 °C to +85 °C
Class 1C
HIGH SPEED LOGIC - SMT
Input Signals
Output Signals
Continuous Pdiss (T = 85 °C)
(derate 17 mW/°C above 85 °C)
Thermal Resistance (R
th l-p
) Worst
Case Junction to Package Paddle
Maximum Junction Temperature
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA
2. LEAD AND GROUND PADDLE PLATING:
30-80 MICROINCHES GOLD OVER 50 MICROINCHES MINIMUM NICKEL.
3. DIMENSIONS ARE IN INCHES [MILLIMETERS].
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
5. PACKAGE WARP SHALL NOT EXCEED 0.05 mm DATUM -C-
6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
7. PADDLE MUST BE SOLDERED TO Vee.
Package Information
Part Number
HMC679LC3C
Package Body Material
Alumina, White
Lead Finish
Gold over Nickel
MSL Rating
MSL3
[1]
Package Marking
[2]
H679
XXXX
[1] Max peak reflow temperature of 260 °C
[2] 4-Digit lot number XXXX
5
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
stm32/stm8
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
