INTEGER-N SYNTHESIZER - SMT
8
8 - 2
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
General Description
Features
Functional Diagram
The HMC440QS16G(E) is an Integer-n synthesizer
that incorporates a 10 to 1300 MHz digital Phase-
Frequency Detector with 10 to 2800 MHz 5-Bit
Frequency Counter (continuous division from 2 to
32) in miniature 16 lead QSOP plastic packages.
It is intended for use in low phase noise offset-
synthesizer applications. The HMC440QS16G(E)’s
combination of high frequency operation along
with ultra low phase noise  oor make possible
synthesizers with wide loop bandwidth and low N
resulting in fast settling and very low phase noise.
When used in conjunction with a differential loop
ampli er, the HMC440QS16G(E) generates an
output voltage that can be used to phase lock a VCO
to a reference oscillator.
Ultra Low SSB Phase Noise Floor:
-153 dBc/Hz @ 10 kHz offset @ 100 MHz
Reference Frequency.
Programmable Divider (N = 2 - 32) Operating
up to 2.8 GHz
Open Collector Output Buffer Ampli ers for
Interfacing w/ Op-Amp Based Loop Filter
QSOP16G SMT Package: 29.4 mm2
Electrical Speci cations, TA = +25° C, Vcc= 5V
Typical Applications
The HMC440QS16G(E) is ideal for:
• Satellite Communication Systems
• Point-to-Point Radios
• Military Applications
• Sonet Clock Generation
Parameter Conditions Min. Typ. Max. Units
Maximum Ref. Input Frequency Sine or Square Wave Input 1300 MHz
Minimum Ref. Input Frequency Square Wave Input 10 MHz
Reference Input Power Range 100 MHz Frequency -10 +10 dBm
Maximum VCO Input Frequency Sine or Square Wave Input 2800 MHz
Minimum VCO Input Frequency Square Wave Input 10 MHz
VCO Input Power Range 100 MHz Input Frequency -15 +10 dBm
Output Voltage 200 Ohm Pull Up to Vcc 2000 mV, Pk - Pk
SSB Phase Noise @ 10 kHz Offset @ 100 MHz Ref. Input, Pin= 0 dBm -153 dBc/Hz
Supply Current 250 mA
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
HMC440QS16G / 440QS16GE
v03.0808
INTEGER-N SYNTHESIZER - SMT
8
8 - 3
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Error Voltage vs. Frequency, Pin= 0 dBm*
Error Voltage vs. Supply Voltage,
Pin= 0 dBm, Fin= 640 MHz*
Error Voltage vs. Temperature,
Pin= 0 dBm, Fin= 640 MHz*
SSB Phase Noise Performance,
Pin= 0 dBm, Fin= 100 MHz
SSB Phase Noise Performance,
Pin= 0 dBm, T= 25 °C
* See Gain & Error Voltage Test Circuit herein.
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
-p -p/2 0 p/2 p
50 MHz
640 MHz
1280 MHz
ERROR VOLTAGE (Vdc)
PHASE DIFFERENCE (rad)
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
-p -p/2 0 p/2 p
+25 C
+85 C
-40 C
ERROR VOLTAGE (Vdc)
PHASE DIFFERENCE (rad)
-180
-150
-120
-90
-60
-30
0
102103104105106
+25C
+85C
-40C
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
-180
-150
-120
-90
-60
-30
0
102103104105106
100 MHz
1280 MHz
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
-p -p/2 0 p/2 p
Vcc=4.8V
Vcc=5.0V
Vcc=5.2V
ERROR VOLTAGE (Vdc)
PHASE DIFFERENCE (rad)
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 4
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Typical DC Characteristics @ Vcc = +5V
Symbol Characteristics +25C Units
Min. Typ. Max.
Icc Power Supply
Current 229 250 266 mA
Voh Output High
Voltage 5.0 5.0 5.0 V
Vol Output Low
Voltage 2.9 3 3.1 V
Absolute Maximum Ratings
RF Input (Vcc= +5V) +13 dBm
Supply Voltage (Vcc) +5.5V
Counter Logic Input (A0 - A4) -0.5V to (0.5V + Vcc)
Channel Temperature (Tc) 135 °C
Continuous Pdiss (T = 85 °C)
(derate 56.8 mW/° C above 85 °C) 2.84 W
Thermal Resistance
(Junction to ground paddle) 17.6 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Typical Supply Current vs. Vcc
Vcc (Vdc) Icc (mA)
4.8 229
5.0 250
5.2 266
Note: HMC440QS16G will work over full voltage range above.
Outline Drawing
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO
PCB RF GROUND.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC440QS16G Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H440
XXXX
HMC440QS16GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H440
XXXX
[1] Max peak re ow temperature of 235 °C
[2] Max peak re ow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 5
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Pin Description
Pin Number Function Description Interface Schematic
1
2
FOUT
NFOUT
(These pins are DC coupled and must be DC blocked externally).
Both outputs are test ports only and are intended for use with
hi-impedance scope probes.
3
4
ND
D
Down Output Compliment
Down Output
5
6
NU
U
Up Output Compliment
Up Output
7
8
REF
NREF
(These pins are AC coupled and must be DC blocked externally.)
Reference Input
Reference Input Compliment
9 Vcc Supply voltage 5V ± 0.2V
10 - 14 A0 - A4 CMOS compatible control input bit 0 (LSB) - 4.
15
16
VCO
NVCO
(These pins are AC coupled and must be DC blocked externally.)
VCO Input
VCO Input Compliment
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 6
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC440QS16G Programming Truth Table
Function (LSB)
A0 A1 A2 A3 A4
Output Low 0 0 0 0 0
/ 2 1 0 0 0 0
/ 3 0 1 0 0 0
/ 4 1 1 0 0 0
------
/ 32 1 1 1 1 1
Note: A0 through A4 are CMOS compatible logic control inputs.
Evaluation PCB Circuit
* Choose values of R2 & R4 between 4.3 and 20 Ohms for best noise performance.
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 7
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Evaluation PCB
List of Materials for
Evaluation PCB 105811 [1]
Item Description
J1 - J6 PC Mount SMA RF Connector
J7 2 mm DC Header
C1-C4, C7, C8 100 pF Capacitor, 0402 Pkg.
C5, C6, C9 1000 pF Capacitor, 0603 Pkg.
C10 4.7 μF Capacitor
R1, R3 200 Ohm Resistor, 0603 Pkg.
R2[3], R4 [3] 4.3 Ohm Resistor, 0603 Pkg.
R5 Resistor Network, 10k Ohm
U1 HMC440QS16G / HMC440QS16GE
PCB [2] 105738 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
[3] Choose values of R2 & R4 between 4.3 and 20 Ohms for best
noise performance
The circuit board used in the  nal application should use RF circuit design techniques. Signal lines should have 50
ohm impedance while the package ground leads and backside ground slug should be connected directly to the ground
plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground
planes. The evaluation circuit board shown is available from Hittite upon request.
Note: The evaluation PCB for the HMC440QS16G contains
10K Ohm pull up resistors for each of the  ve control inputs
A0 through A4. Programming the 31 distinct division ratios
consists of installing or removing jumpers S1 through S5, as
shown below.
Function S1 S2 S3 S4 S5
Output Low 0 0 0 0 0
/ 2 1 0 0 0 0
/ 3 0 1 0 0 0
/ 4 1 1 0 0 0
------
/ 32 1 1 1 1 1
Note: 0 = Jumper Installed.
1 = Jumper Not Installed.
Evaluation PCB Truth Table
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 8
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Typical PLL Application Circuit using HMC440QS16G
PLL application shown for a 14.0 GHz Fout. Contact HMC to discuss your speci c application.
Gain & Error Voltage Test Circuit:
Gain & Error Voltage data taken using test circuit below. Loop  lter gain has been subtracted from the result.
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 9
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Applications Information
Simpli ed Block Diagram of 5-Bit Counter
Asynchronous Programming
The 5-Bit programmable counter counts-down from the programmed value of the data bits to zero and issues an
output pulse at the end of each cycle. Settling time of the programmable 5-Bit counter is de ned as the maximum
time required for the counter to change the division ratio N to a new value after the data bits have settled. The worst
case settling time occurs if the data bits A0 thru A4 are changing during the load cycle. Under this condition, the
data bits may potentially be erroneous when they are clocked in and in the worst case could be all 1’s, requiring 32
clock cycles until the correct data is re-loaded into the  ip  ops. The worst case asynchronous settling time can be
calculated as follows:
TSETTLING MAX = 32/fIN (For Asynchronous Programming)
As an example, if the input frequency is 1 GHz, the maximum settling time is 32 nS
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 10
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Synchronous Programming
For applications which can not tolerate a momentary unde ned division ratio, which normally occurs while changing
the data bits (A0-A4) at random, synchronous programming can be used. Data is loaded into the counter on every
rising edge of the clock which occurs while the output (OUT) is “HIGH”. The typical minimum setup and hold times are
shown in the table below as a function of frequency. For precision applications, the rising edge of the complementary
output may be used to latch the new data bits (A0-A4), so that all bits are settled before the next load cycle.
TSETTLING MAX = N/fIN (For Synchronous Programming)
Where N is the desired division ratio, and fIN = Input Frequency (Hz)
Programmable Divider Timing Requirements
for Synchronous Programming
IN
OUT
OUT
CURR E NT DATA NEW DATA
A0-A4
t
SU
t
HOLD
Data Load
Rising Edge
Rising Edge to
Clock New Data
Parameter 0.5 GHz 1 GHz 2 GHz
tSETUP 200 ps 200 ps 200 ps
tHOLD 700 ps 300 ps 120 ps
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)
INTEGER-N SYNTHESIZER - SMT
8
8 - 11
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
CMOS/TTL Input Characteristics
Maximum Input Logic “0” Voltage (VIL MAXIMUM) = 1.1V @ 1 μA.
Minimum Input Logic “1” Voltage (VIH MINIMUM) = 1.8V @ 50 μA.
Input IV characteristics for the logic inputs (A0-A4) are shown below:
-0.1
0
0.1
0.2
0.3
0.4
012345
Input Current (mA)
Input Voltage (V)
VIL MAX VIH MIN
HMC440QS16G / 440QS16GE
v03.0808
2.8 GHz INTEGER-N SYNTHESIZER
(N = 2 - 32)