Datasheet MRFIC2002 Datasheet (Motorola)

Page 1



SEMICONDUCTOR TECHNICAL DATA

The MRFIC Line

   

The MRFIC2002 is a double-balanced, active mixer designed for transmitters operating in the 800 MHz to 1.0 GHz frequency range. The design utilizes Motorola’s advanced MOSAIC 3 silicon bipolar RF process to yield superior performance in a cost effective monolithic device. Applications for the MRFIC2002 include CT1 and CT2 cordless telephones, GSM, remote controls, video and audio short range links, low cost cellular radios, and ISM band transmitters. A power down control is provided to minimize current drain with minimum recovery/turn-on time.

• Conversion Gain = 10 dB (Typ)

• Supply Current = 5.5 mA (Typ)

• Power Down Supply Current = 2.0 µA (Max)

• LO-RF Isolation = 25 dB (Typ)

• Low LO Drive Required = –10 dBm (Typ)

• LO Impedance Insensitive to Power Down

• No Matching Required for RF OUT Port

• All Ports are Single Ended

• Order MRFIC2002R2 for Tape and Reel.

R2 Suffix = 2,500 Units per 12 mm, 13 inch Reel.

• Device Marking = M2002

Order this document

by MRFIC2002/D



900 MHz TX-MIXER

SILICON MONOLITHIC

INTEGRATED CIRCUIT

CASE 751-05

(SO-8)

ABSOLUTE MAXIMUM RATINGS

Supply Voltage V Control Voltages ENABLE, V Input Power, LO and IF Ports PLO, P Operating Ambient Temperature T Storage Temperature T

(TA = 25°C unless otherwise noted)

Rating Symbol Value Unit

IF IN

1 8

(1)

RAMP

ENABLE

2 7

GND

BIAS

3 6

CNTL

4 5

stg

RAMP IF

LO IN

GND

RF OUT

5.5 Vdc

5.0 Vdc

+10 dBm

–35 to +85 °C

–65 to +150 °C

REV 2

 Motorola, Inc. 1997

(1) For CT2 applications, apply ramp voltage provided in MRFIC2004. For non-CT2, leave open circuited.

Pin Connections and Functional Block Diagram

MRFIC2002MOTOROLA RF DEVICE DATA

Page 2

RECOMMENDED OPERATING RANGES

Parameter Symbol Value Unit

Supply Voltage Range V Control Voltage Ranges ENABLE, V RF Port Frequency Range f IF Port Frequency Range f

ELECTRICAL CHARACTERISTICS (V

GHz, RF @ 900 MHz, TA = 25°C unless otherwise noted)

Characteristic (2)

Supply Current: On-Mode Supply Current: Off-Mode (Enable < 1.0 V)

Enable Response Time — 1.0 — µs Conversion Gain 8.0 10 12 dB Single Sideband Noise Figure — 10 — dB Output Power at 1.0 dB Gain Compression — –18 — dBm Output Power at Saturation –16 –14 — dBm LO-RF Isolation (1.0 GHz) — 25 — dB LO-IF Isolation (1.0 GHz) — 65 — dB IF-RF Isolation (100 MHz) — 18 — dB IF-LO Isolation (100 MHz) — 50 — dB

NOTES:

1. For CT2 applications, apply ramp voltage provided in MRFIC2004. For non-CT2, leave open circuited.

2. All Electrical Characteristics are measured in test circuit schematic as shown in Figure 1.

, Enable = 3.0 V and V

Ramp

(1)

Open Circuited, PLO = –7.0 dBm, IF @ 100 MHz, LO @ 1.0

RAMP

Min Typ Max Unit

— —

2.7 to 5.0 Vdc 0 to 5.0 Vdc

500 to 1000 MHz

0 (dc) to 250 MHz

5.5

0.1

7.0

2.0

µA

IF IN

Ω

C1 L1 L2

RAMP

–

ENABLE

C1, C3, C6 — 1000 pF Chip Capacitor C2 — 6.8 pF Chip Capacitor C4 — 3.9 pF Chip Capacitor C5 — 100 pF Chip Capacitor C7 — 5.6 pF Chip Capacitor L1 — 270 nH Chip Inductor

+ –

D.U.T.

L2 — 10 nH Chip Inductor L3 — 390 nH Chip Inductor RF Connectors — SMA Type Board Material — Glass/Epoxy εr = 4.5, Dielectric Thickness = 0.014″ (0.36 mm)

Figure 1. T est Circuit

Configuration

C6C5

+ –V

LO IN

Ω

RF OUT

Ω

MRFIC2002 2

MOTOROLA RF DEVICE DATA

Page 3

TA = –35°C

+25°C

f = 0.5 GHz

Zo = 50

Ω

0.9

1.2

f = 0.5 GHz

0.7

0.9

0.1

f = 0.25 GHz

, CONVERSION GAIN (dB)

fRF, RF FREQUENCY (MHz)

Figure 3. Gain versus RF Frequency

, CONVERSION GAIN (dB)

fRF, RF FREQUENCY (MHz)

VCC = 5 V

4 V

3 V

+85°C

VCC = 3 V fIF = 100 MHz

TA = 25°C fIF = 100 MHz

900600500 700 800

900600500 700 800 1000

1000

Figure 2. Port Impedances versus Frequency

(Volts)

3.0 50 0.83 –2.4 — — — —

(MHz)

100 0.82 –4.7 — — — — 150 0.82 –7.1 — — — — 200 0.81 –9.6 — — — — 250 0.81 –11.7 — — — — 500 — — 0.42 100 0.57 –29 600 — — 0.41 94 0.55 –35 700 — — 0.40 88 0.54 –41 800 — — 0.39 80 0.52 –48

900 — — 0.36 71 0.51 –54 1000 — — 0.33 63 0.50 –60 1100 — — 0.31 55 0.49 –65 1200 — — 0.28 45 0.49 –70

Mag

∠φ

Degrees

Figure 4. Gain versus RF Frequency

∠φ

Mag

Degrees

Mag

T able 1. Deembedded Port Reflection Coefficients

(Enable = 3.0 V, Zo = 50 Ω, TA = 25°C)

∠φ

Degrees

MRFIC2002MOTOROLA RF DEVICE DATA

Page 4

TA = –35°C

25°C

VCC = 5 V

4 V

, CONVERSION GAIN (dB)

–12–15 0

PLO, LO INPUT POWER (dBm)

Figure 5. Gain versus LO Input Power

–12

–14

–16

TA = –35°C

–18

25°C

P , OUTPUT POWER (dBm)

–20

–22

–30

85°C

–26 – 22 –18 –14 –10

PIF, IF INPUT POWER (dBm)

85°C

VCC = 3 V

–9 –3

–6

VCC = 3 V

, CONVERSION GAIN (dB)

–12–15 0–6–9 –3

PLO, LO INPUT POWER (dBm)

3 V

TA = 25°C

Figure 6. Gain versus LO Input Power

–2

–

–10

–14

P , OUTPUT POWER (dBm)

–18

–

–30 –26 – 22 –18 –14 –10

VCC = 5 V

3 V

PIF, IF INPUT POWER (dBm)

4 V

TA = 25°C

Figure 7. Output Power versus IF Input Power Figure 8. Output Power versus IF Input Power

–

VCC = 5 V

–10

–12

–14

, OUTPUT POWER (dBm)

–16

o 1.0 dB

–18

3 V

PLO, LO INPUT POWER (dBm)

4 V

TA = 25°C

3–12–15 –ā9–

–

Figure 9. Output Power at 1.0 dB Gain Compression

versus LO Input Power

MRFIC2002 4

MOTOROLA RF DEVICE DATA

Page 5

, SUPPLY CURRENT (mA)

TA = +ā85°C

–ā35°C

25°C

, SUPPLY CURRENT (mA)

25°C

= 85°C

–ā35°C

VCC = 3 V

3.43 5

3.8 4.6

VCC, SUPPLY VOLTAGE (V)

Figure 10. ICC versus V

4.2

APPLICATIONS INFORMATION

DESIGN PHILOSOPHY

The MRFIC2002 was designed to have excellent LO and spurious rejection. This is accomplished by using a doublebalanced configuration and using a symmetrical die layout.

To eliminate the need for external baluns or decoupling elements, the unused LO and IF ports are decoupled internally. Only one of the RF outputs is used, eliminating the need for an external balun on the RF port as well. Also, the RF port is buffered to provide a 50 ohm output impedance. External matching is required for the LO and IF ports.

To minimize current drain in various TDD/TDMA systems, two methods of enabling/disabling the MRFIC2002 are provided: one that is TTL/CMOS compatible and one that is triggered from a ramp, such as the one provided in the MRFIC2004. The former method must be used if a ramp is not available. The latter method is more desirable since the MRFIC2002 can remain off during guard times and while in idle mode.

THEORY OF OPERATION

Matching the LO port to 50 ohms can be done several ways. The recommended approach is a series inductor as close to the IC as possible. The inductor value is small enough (~8 –15 nH depending on LO frequency) to be printed on the board. A DC block is required and should not be placed between the inductor and IC since this will prevent the inductor from being placed close enough to the IC to provide a good match.

The IF port is approximately 500 ohms resistive in parallel with 1.3 pF of capacitance. If 50 ohms is the desired IF port impedance, a shunt capacitor followed by a series inductor

10 5324

VEN, ENABLE VOLTAGE (V)

Figure 11. ICC versus Enable V oltage

will provide the transformation. A DC block is required and can be placed on either side of the matching network.

The RF port is nearly 50 ohms resistive in series with a small amount of inductive reactance, which results in an 8 –11 dB return loss. However, a series 5.6 pF capacitor placed as close to the IC as possible will typically provide greater than a 15 dB return loss. The series capacitor also serves as a DC block which is required.

Supply decoupling must be done as close to the IC as possible. A 1000 pF capacitor is recommended. An additional 100 pF capacitor and an RF choke are recommended to keep the RF and LO signals off the supply line.

For systems that use a ramp, like the one provided in the MRFIC2004, enabling/disabling can be done by applying the ramp voltage to the V

pin which trips the IC between

RAMP

0.6 and 1.0 volts. The Enable pin must either be tied high or to the inverse of the receiver enable control line, RXEN

. An

inverter is provided in the MRFIC2004 to invert RXEN.

For systems that do not use a ramp, the V

RAMP

pin can be left open circuited and enabling/disabling the MRFIC2002 can be done with its TTL/CMOS compatible Enable pin. The trip point is between 1.0 and 2.0 volts.

EVALUATION BOARDS

Evaluation boards are av ailable for RF Monolithic Integrated Circuits by adding a “TF” suffix to the device type. For a complete list of currently available boards and ones in development for newly introduced product, please con tact your local Motorola Distributor or Sales Office.

MRFIC2002MOTOROLA RF DEVICE DATA

Page 6

P ACKAGE DIMENSIONS

0.25MB

X 45

SEATING PLANE

0.10

A0.25MCB

NOTES:

1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.

2. DIMENSIONS ARE IN MILLIMETERS.

3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION.

MILLIMETERS

DIM MIN MAX

A 1.35 1.75

A1 0.10 0.25

B 0.35 0.49 C 0.18 0.25 D 4.80 5.00 E

3.80 4.00

1.27 BSCe

H 5.80 6.20 h

0.25 0.50

L 0.40 1.25

0 7

CASE 751–05

ISSUE S

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty , representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.

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MRFIC2002

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MOTOROLA RF DEVICE DATA

MRFIC2002/D