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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 1

v01.0414

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

General Description

Features

Functional Diagram

Typical Applications

The HMC905LP3E is a SiGe BiCMOS low noise

programmable frequency divider in a 3x3 mm lead-

less surface mount package. The circuit can be pro-

grammed to divide from N = 1 to N = 4 in the 400 MHz

to 6 GHz input frequency range. The high level out-

put power (up to 6 dBm single ended) with a very low

SSB phase noise and 50% duty cycle makes this

device ideal for low noise clock generation, LO

generation and LO drive applications. Congurable

bias and output power controls allow current

consumption and output power control. The device

incorporates a power down feature, good input

to output isolation and fast start up time. The

HMC905LP3E can be included into fast switching

“ping-pong” applications.

Low Noise Floor:

-164 dBc/Hz at 10 MHz Offset for N = 4

Programmable Frequency Divider, N = 1, 2, 3 or 4

400 MHz to 6 GHz Input Frequency Range

Up to +6 dBm Output Power

Sleep Mode: Consumes <1 µA

16 Lead 3X3 mm SMT Package: 9mm2

Electrical Specications, TA = +25° C, Vcc = +3.3V, Zo = 50Ω

The HMC905LP3E is ideal for:

• LO Generation with Low Noise Floor

• Software Dened Radios

• Clock Generators

• Fast Switching Synthesizers

• Military Applications

• Test Equipment

• Sensors

Parameter Conditions Min. Typ. Max. Units

RF Input Characteristics

RF Input Frequency Single-ended input 400 6000[1] MHz

RF Input Power Single-ended input 0 6 10 dBm

Divider Output Characteristics

Output Power (Single-ended Out) -Typically, 50 ohms load resistors connected to Vcc

- 1 bit programmable (CTRL digital signal) [2] -2 3 6 dBm

SSB Phase Noise @ 10 kHz Offset

+6 dBm Input Power, 6 GHz input,

Single-Ended Input and Output, Divide-by-4 [3]

-150 dBc/Hz

SSB Phase Noise @ 100 kHz Offset -158 dBc/Hz

SSB Phase Noise @ 10 MHz Offset -164 dBc/Hz

Start Up Time EN bit from OFF to ON State (0V to Vcc) 200 ns

Power Down Time EN bit from ON to OFF State (Vcc to 0V) 20 ns

Setting Time at Division Ratio Change Delay from divide ratio change

to output frequency change 25 ns

[1] Maximum 5500 MHz in Divide by 2.

[2] See typical supply currents vs. BIAS0, BIAS1, CTRL bits table

[3] See Residual Phase Noise plot

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 2

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

v01.0414

Electrical Specications, TA = +25° C, Vcc = +3.3V, Zo = 50Ω (Continued)

Input Sensitivity Window

Phase Noise for 3 Cascaded

HMC905LP3E from 6 GHz VCO

Residual Phase Noise

Divide by 1, 2, 3 & 4 [2]

Parameter Conditions Min. Typ. Max. Units

Isolation SE Input to SE Output EN bit OFF -80 -30 dBc

Duty Cycle for Differential Mode 50 %

Logic Inputs

VIH Input High Voltage 1.5 3.3 V

VIL Input Low Voltage 0 0.8 V

Power Supplies

Vcc

Analog Supply

(Low Noise LDO for good phase noise -

HMC860LP3E)

3.15 3.3 3.45 V

Current Consumption Total current vs. BIAS and CTRL bits [1] 82 100 125 mA

Sleep Current EN = 0V 1 µA

[1] The bias bits combination BIAS1 BIAS0 = 1 1 is not recommended

[2] Fin = 6 GHz, Pin = 6 dBm, CTRL = 1, BIAS1 BIAS0 = 01

-20

-15

-10

-5

01234567

BIAS1BIAS0=01

BIAS1BIAS0=00

BIAS1BIAS0=10

Operating Window

INPUT FREQUENCY (GHz)

INPUT POWER (dBm)

Recommended

Operating Window

-170

-150

-130

-110

-90

-70

-50

-30

-10

10 100 1000 104105106107

VCO IN

Div By 4

Div By 16

Div By 64

OFFSET FREQUENCY (Hz)

SSB PHASE NOISE (dBc/Hz)

-170

-160

-150

-140

-130

-120

-110

10 100 1000 104105106107108

Div By 1

Div By 2

Div By 3

Div By 4

OFFSET FREQUENCY (Hz)

SSB PHASE NOISE (dBc/Hz)

Output Phase Noise vs. Input Power

Divide-by-4

-170

-160

-150

-140

-130

-120

-110

-100

-90

1000 104105106107

Source IN

Div By 4 0dBm

Div By 4 3dBm

Div By 4 6dBm

Div By 4 9dBm

OFFSET FREQUENCY (Hz)

SSB PHASE NOISE (dBc/Hz)

All data plots taken on Evaluation Board (schematic on page 10) single-ended with the unused

output port 50 ohms terminated, Vcc = +3.3V, Ta=+25 °C, except stated otherwise

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 3

v01.0414

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

Pout vs. Division Ratio

Output Power vs. Input Power Level

Divide-by-4

Output Power vs. Voltage Supply

Divide-by-4

Output Power vs. Temperature

Divide-by-4

[1] CTRL = 0, BIAS1, BIAS1 BIAS0 = 00, Pin = 6 dBm

-10

-5

012345678

Div by 4

Div by 3

Div by 2

Div by 1

INPUT FREQUENCY (GHz)

OUTPUT POWER (dBm)

CTRL=1, BIAS1BIAS0=01

-10

-5

012345678

6dBm

3dBm

9dBm

INPUT FREQUENCY (GHz)

OUTPUT POWER (dBm)

CTRL=1, BIAS1BIAS0=01

-10

-5

012345678

3.3V

3.15V

3.45V

INPUT FREQUENCY (GHz)

OUTPUT POWER (dBm)

CTRL=1, BIAS1BIAS0=01

-10

-5

012345678

+25°C 101

+85°C 101

-40°C 101

+25°C 000

+85°C 000

-40°C 000

INPUT FREQUENCY (GHz)

OUTPUT POWER (dBm)

CTRL=1, BIAS1BIAS0=01->101

CTRL=0, BIAS1BIAS0=00->000

Pout Divide-by-4 vs. CTRL & BIAS

-10

-5

012345678

CTRL=0, BIAS=00

CTRL=1,BIAS=00

CTRL=0,BIAS=01

CTRL=1,BIAS=01

INPUT FREQUENCY (GHz)

OUTPUT POWER (dBm)

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 4

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

v01.0414

H2, H3, H4, H5 Harmonics, Divide-by-1 [1] H2, H3, H4, H5 Harmonics, Divide-by-2 [1]

[1] CTRL = 0, BIAS1, BIAS1 BIAS0 = 00, Pin = 6 dBm

Input to Output Isolation

H2, H3, H4, H5 Harmonics, Divide-by-3 [1] H2, H3, H4, H5 Harmonics, Divide-by-4 [1]

-50

-40

-30

-20

-10

01234567

INPUT FREQUENCY (GHz)

HARMONICS DIVIDE-BY-1 (dBc)

CTRL=0,BIAS1BIAS0=00

-70

-60

-50

-40

-30

-20

-10

01234567

INPUT FREQUENCY (GHz)

HARMONICS DIVIDE-BY-2 (dBc)

-70

-60

-50

-40

-30

-20

-10

01234567

INPUT FREQUENCY (GHz)

HARMONICS DIVIDE-BY-3 (dBc)

-80

-70

-60

-50

-40

-30

-20

01234567

INPUT FREQUENCY (GHz)

INPUT OUTPUT ISOLATION (dBc)

-50

-40

-30

-20

-10

01234567

INPUT FREQUENCY (GHz)

HARMONICS DIVIDE-BY-4 (dBc)

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

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v01.0414

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

Absolute Maximum Ratings

RF Input Power 12 dBm

Supply Voltage (Vcc) 3.6V

Control Inputs

(B0, B1, CTRL, Bias0, EN) 3.6V

Junction Temperature 125 °C

Continuous Pdiss (T = 85 °C)

(derate 33 mW/ °C above 85 °C) 1.3 W

Thermal Resistance

(Junction to ground paddle) 30 °C/W

Storage Temperature -65 to +125 °C

Operating Temperature -40 to +85 °C

ESD Sensitivity (HBM) Class 1A

Typical Supply Current vs. EN, BIAS0, BIAS1 & CTRL Bits

Digital Control Input Voltages

EN CTRL BIAS1 BIAS0 3.3V Supply Typ.

Current (mA)

Pou t Typ.

(dBm) Noise Floor

1000 84 1.5 Low

1001 105 4.8

1010 98 3.9

1100 100 2.4 Better

1101 120 6.3 Best

1110 113 5.3

0 x x x 0.001 -55

Note: Currents for the divide-by-4 option, 2 GHz and 6 dBm input and 3.3V; for Vcc voltage supply from

3.15V to 3.45V, the HMC905LP3E total current is varying with a maximum of ~8% around typical values.

With temperature, the total current is changing from +25°C to -40°C/+85°C with about ±3%.

State B0, B1, CTRL, BIAS1, BIAS0, EN

Low 0 to 0.8V

High 1.5V to 3.3V

ELECTROSTATIC SENSITIVE DEVICE

OBSERVE HANDLING PRECAUTIONS

Programming Truth Table

for Frequency Division Ratios

B1 B0 Divide-by

0 0 1

0 1 2

1 0 3

1 1 4

0 = Logic Low

1 = Logic High

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 6

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

v01.0414

Outline Drawing

Part Number Package Body Material Lead Finish MSL Rating Package Marking [1]

HMC905LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 905

XXX

[1] 4-Digit lot number XXXX

[2] Max peak reow temperature of 260 °C

Package Information

NOTES:

1. LEADFRAME MATERIAL: COPPER ALLOY

2. DIMENSIONS ARE IN INCHES [MILLIMETERS].

3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE

4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.

PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.

5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.

6. ALL GROUND LEADS AND GROUND PADDLE MUST

BE SOLDERED TO PCB RF GROUND.

7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED

PCB LAND PATTERN.

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 7

v01.0414

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

Pin Description

Pin Number Function Description Interface Schematic

1Vcc +3.3V Voltage Supply

2RFINP RF Positive Input.

Input is DC coupled, external DC blocks required.

3RFINN RF Negative Input.

Input is DC coupled, external DC blocks required.

4GND This pin must be connected to RF/DC ground.

5B0 Division ratio (LSB)

See programming truth table.

6B1 Division ratio (MSB)

See programming truth table.

7CTRL Divider Output Buffer Power Control

13 BIAS1 Divider Core Bias Control

14 BIAS0 Divider Core Bias Control

15 EN Chip Enable

8, 9, 12, 16 N/C No connection required. This pin may be

connected to ground, without affecting performance.

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 8

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

v01.0414

Pin Description (Continued)

Pin Number Function Description Interface Schematic

10 IOUTN Divider Negative Output, Open Drain.

Typically 50 Ohms connected to Vcc.

11 IOUTP Divider Positive Output, Open Drain.

Typically 50 Ohms connected to Vcc.

Application Note:

The HMC905LP3E is a high performance RF divider. Such dividers are high gain devices with internal feedback. The

device will oscillate if used with AC coupled RF inputs and if no RF input is applied. Normally, if the RF input signal

is removed the device should be disabled, or it should be placed in divide by 1 mode. The device is stable in divide

by one mode with no RF input. The device will oscillate in divide 2, 3, or 4 modes with no RF input. In general, very

small RF input levels will stop all oscillations. At the minimum rated RF input sensitivity level or higher, no oscillations

or spurious signals exist and excellent low noise performance is achieved. For input frequency lower than 400 MHz,

square wave input signal is recommended.

For single ended applications, apply the signal on the positive input RFinp and terminate the unused output with 50

ohms.

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 9

v01.0414

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

Evaluation PCB

List of Materials for Evaluation PCB 126830 [1]

Item Description

J3 DC Connector

J1, J4, J7, J8 SMA SRI Connector

C1, C2, C10 - C12, C18 1nF Capacitor, 0402 Pkg

C3, C6, C9 100nF Capacitor, 0402 Pkg

C5 10uF Capacitor, 1206 Pkg

C8 10pF Capacitor, 0402 Pkg

R1, R7 51 Ohms, Resistor, 0402 Pkg

R2 - R6, R9 100 kOhms, Resistor, 0402 Pkg

TP1, TP3, TP4 PC Compact SMT

U1 HMC905LP3E Programmable Divider

PCB [2] 126828 Eval Board

[1] Reference this number when ordering complete evaluation PCB

[2] Circuit Board Material: Rogers 4350 or Arlon 25FR

The circuit board used in the application should

use RF circuit design techniques. Signal lines should

have 50 ohm impedance while the package ground

leads and backside ground paddle should be con-

nected 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.

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, 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

FREQUENCY DIVIDERS & DETECTORS - SMT

4 - 10

HMC905LP3E

6 GHz LOW NOISE PROGRAMMABLE

DIVIDER (N = 1 to 4)

v01.0414

Evaluation PCB Schematic

Mouser Electronics

Authorized Distributor

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HMC905LP3E HMC905LP3ETR 126830-HMC905LP3E