Datasheet MRFIC2004 Datasheet (Motorola)



SEMICONDUCTOR TECHNICAL DATA

The MRFIC Line

    

The MRFIC2004 is an integrated Driver and Ramp designed for transmitters
operating in the 800 MHz to 1.0 GHz frequency range. The Ramp is an
integrator which can be used for burst control for TDD/TDMA systems. The
Driver uses a cascode configuration for high gain and reverse isolation. A power
down control is provided to minimize current drain with minimum recovery/turn­on time. Also, an on-board inverter is included to provide complementary
control for an antenna switch, such as the MRFIC2003. 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
MRFIC2004 include CT1 and CT2 cordless telephones, GSM, remote controls,
video and audio short range links, low cost cellular radios, and ISM band
transmitters.

• Small Signal Gain = 21.5 dB (Typ)

• Small Signal Gain Control = 34 dB (Typ)

• Po

• On Board Ramp for Burst Control

• Power Down Supply Current = 0.7 mA (Typ)

• Low Operating Supply Voltage (2.7 to 4.0 Volts)

• Input/Output VSWR Insensitive to Gain Control

• Order MRFIC2004R2 for Tape and Reel.

R2 Suffix = 2,500 Units per 16 mm, 13 inch Reel.

• Device Marking = M2004

= –1.0 dBm (Typ)

1.0 dB

Order this document

by MRFIC2004/D



900 MHz DRIVER

& RAMP

SILICON MONOLITHIC

INTEGRATED CIRCUIT

CASE 751B-05

(SO-16)

ABSOLUTE MAXIMUM RATINGS

Supply Voltages V

Control Voltages RXEN, TXEN, V
Input Power, RF IN Port P
Operating Ambient Temperature T
Storage Temperature T

(TA = 25°C unless otherwise noted)

Rating Symbol Value Unit

CC1

V

CC2

RF

A

stg

GND

V

CC1

GND

V

RAMP

C INT

GND

1RX EN

2

3

4

DRIVER

5

6

RAMP

7

RX EN

16

GND

15

RF OUT/V

14

GND

13

GND

12

RF IN

11

GND

10

cont

CC2

4.5

6.0

6.0 Vdc

+10 dBm

–35 to +85 °C

–65 to +150 °C

Vdc

REV 2

 Motorola, Inc. 1997

TX EN

8

9

Pin Connections and Functional Block Diagram

V

cont

(GAIN CONTROL)

MRFIC2004MOTOROLA RF DEVICE DATA

1

RECOMMENDED OPERATING RANGES

Parameter Symbol Value Unit

Supply Voltage Ranges V
Control Voltage Ranges TX EN, RX EN,

Frequency Range f 800 to 1000 MHz

ELECTRICAL CHARACTERISTICS (V

Characteristics (1)

Supply Current, TX EN High, RX EN Low — 11 13 mA
Supply Current, TX EN Low, RX EN High — 0.7 1.5 mA

Driver Characteristics (1)

Gain (Small Signal) 19 21.5 24 dB
Gain Control (Small Signal) — 34 — dB
Power Out @ 1.0 dB Gain Compression –4.0 –1.0 — dBm
Third Order Intercept Point (out) — +7.5 — dBm
Reverse Isolation — 32 — dB

Ramp Characteristics (1)

Ramp Up Delay Time

Rise Time
Total Time

Ramp Down Delay Time

Fall Time
Total Time

LOGIC LEVELS (V

High
Low

High
Low

NOTE:

1. All electrical characteristics measured in test circuit schematic shown in Figure 1 below.

= 2.7 to 4.0 V, TA = 25°C)

CC1

RX EN & TX EN Input Voltage

RX EN Output Voltage

CC1

, V

CC2

= 3.0 V, C

= 2.0 nF, TA = 25°C, f = 900 MHz, V

INT

V

V

, V

CC1

CC2

V

cont

Min Typ Max Unit

—
—
—

—
—
—

Min Typ Max Unit

– 0.8

CC1

—

– 0.2

CC1

—

4.0
18
22

4.0
18
22

—
—

—
—

2.7 to 4.0 Vdc

0 to V

CC1

= 1.3 V)

CONT

—
—
—

—
—
—

—

0.8

—

0.2

Vdc

µs

µs

V

V

MRFIC2004
2

MOTOROLA RF DEVICE DATA

TX EN

f

V

cont

+

V

RAMP

–

C

C6

INT

+
–

D.U.T.

+
–

C9

C5 C7

12345678

161514131211109

L2

+

VCC 1

–

+

RX EN

–

+

RX EN

–

Ω

LINE

RF IN

50

Ω

C1, C7, C9 — 1000 pF Chip Capacitor
C2, C5, C6, C10 — 100 pF Chip Capacitor
C3 — 1.6 pF Chip Capacitor
C

— 2000 pF Chip Capacitor

INT

50

C10C11

Figure 1. T ypical Biasing Configuration

Zo = 50

Ω

V

= 1.0 V

cont

1000

750

f = 500 MHz

L1 R1

+

VCC 2

–

C11 — 6.2 pF Chip Capacitor
L1 — 4.7 nH Chip Inductor
L2 — 150 nH Chip Inductor
R1 — 330 Ω Chip Resistor

C3

C2C1

Ω

LINE

50

RF Connectors — SMA Type
Board Material — Epoxy/Glass εr= 4.5,
Dielectric Thickness = 0.014″ (0.36 mm)

Zo = 50

Ω

RF OUT

50

V

= 1.0 or 3.0 V

cont

Ω

f = 500 MHz

1000

750

V

= 3.0 V

cont

Figure 2. S11 versus Frequency versus V

S

f

V

cont

1.0 100 0.85 –11.3 10.48 –171.5 0.0002 142.7 0.99 –2.9

(MHz)

300 0.83 –32.8 10.33 –156.3 0.0020 129.0 0.99 –7.3
500 0.79 –56.9 10.15 –140.5 0.0030 130.6 0.98 –15.9
550 0.79 –62.5 10.04 –135.9 0.0030 132.6 0.98 –17.9
600 0.78 –68.5 9.85 –130.2 0.0040 133.3 0.98 –20.0
650 0.77 –74 9.47 –126.9 0.0040 135.9 0.98 –22.3
700 0.76 –79 9.23 –123.6 0.0050 137.2 0.98 –24.7
750 0.76 –84.4 9.02 –119.4 0.0050 138.1 0.97 –27.0
800 0.75 –89.6 8.69 –113.8 0.0060 139.7 0.97 –29.3
850 0.74 –94.5 8.33 –110.8 0.0070 140.3 0.97 –31.4
900 0.73 –99.1 8.13 –108.9 0.0080 141.2 0.96 –33.2
950 0.73 –102 7.98 –105.4 0.0090 138.3 0.96 –36.3

|S11| ∠φ |S21| ∠φ |S12| ∠φ |S22| ∠φ

11

cont

S

21

Figure 3. S22 versus Frequency

S

12

S

22

MRFIC2004MOTOROLA RF DEVICE DATA

3

1000 0.72 –106.9 7.70 –101.0 0.0100 133.7 0.95 –38.4

1.9 100 0.85 –11.3 0.53 –173.5 0.0002 104.3 0.99 –2.9
300 0.86 –33.5 0.69 –169.7 0.0009 118.7 0.98 –8.7
500 0.87 –59.3 0.89 –179.5 0.0010 134.3 0.98 –15.5
550 0.87 –65.7 0.96 –175.1 0.0020 136.3 0.98 –17.5
600 0.88 –73.1 1.02 –169.9 0.0020 138.9 0.97 –19.6
650 0.88 –78.7 1.04 –167.3 0.0020 142.6 0.97 –21.8
700 0.88 –84.7 1.07 –165.0 0.0030 147.8 0.97 –24.1
750 0.89 –90.7 1.14 –161.5 0.0030 153.4 0.96 –26.4
800 0.89 –98.2 1.17 –155.8 0.0040 161.0 0.96 –28.8
850 0.88 –104.6 1.22 –151.2 0.0050 161.8 0.96 –30.7
900 0.87 –110.1 1.24 –144.6 0.0060 162.7 0.95 –32.8
950 0.86 –114.6 1.26 –139.9 0.0070 160.3 0.95 –35.1

1000 0.85 –118.8 1.27 –134.1 0.0080 158.2 0.94 –37.2

3.0 100 0.85 –10.9 0.003 –85.9 0.0001 115.0 0.99 –2.8
300 0.86 –31.9 0.014 –78.8 0.0006 121.0 0.99 –8.5
500 0.87 –56.9 0.032 –61.1 0.0010 128.0 0.98 –15.1
550 0.88 –62.4 0.038 –65.8 0.0010 136.2 0.98 –17.0
600 0.89 –69.4 0.048 –68.3 0.0010 140.0 0.98 –19.2
650 0.90 –75.1 0.058 –75.1 0.0020 145.1 0.98 –21.3
700 0.90 –81.3 0.069 –82.4 0.0020 150.8 0.97 –23.6
750 0.91 –87.3 0.081 –89.4 0.0020 156.8 0.97 –25.8
800 0.91 –93.8 0.092 –113.4 0.0030 160.3 0.97 –28.1
850 0.92 –100.7 0.092 –121.8 0.0040 163.3 0.96 –30.1
900 0.91 –106.8 0.089 –128.2 0.0050 163.3 0.96 –32.3
950 0.90 –111.4 0.083 –137.1 0.0060 155.2 0.95 –34.5

1000 0.89 –115.2 0.077 –151.9 0.0060 150.0 0.95 –36.6

T able 1. Small Signal Deembedded S Parameters

MRFIC2004
4

MOTOROLA RF DEVICE DATA

24
18

12

6
0

–6

G, GAIN (dB)

–12
–18

–24

V

= 1 V

cont

1.9 V

TA = 25°C
V

3 V

f, FREQUENCY (MHz)

CC1

, V

CC2

= 3 V

1000900800700600500

6

3

0

–3

out

P , OUTPUT POWER (dBm)

–6

–9

–30

25°C

TA = –35°C

85°C

–26 – 22 –18 –14 –1

Pin, INPUT POWER (dBm)

Figure 4. Small Signal Gain versus Frequency Figure 5. Output Power versus Input Power

V
V

CC1
cont

, V

CC2

= 1 V

= 3 V

0

24

16

6

0

G, GAIN (dB)

–8

TA = 25°C
V

CC1

–16

1

–10 dBm

Pin = –30 dBm

, V

= 3 V

CC2

1.4 1.8 2.2 2.6 3
V

, GAIN CONTROL VOLTAGE (V)

cont

–20 dBm

–15 dBm

13

12

11

10

9

, SUPPLY CURRENT (mA)

C

I

8

7

–35

–15 5 25 45 65 85

TA, AMBIENT TEMPERATURE (

Figure 6. Driver Gain versus Gain Control Voltage Figure 7. Supply Current versus Ambient

Temperature

3

2.5

2

1.5

, RAMP VOLTAGE (V)

1

RAMP

V

0.5

0

0

TXEN LOW @ 50 µs

TA = 25°C
V

, V

CC2

= 2 nF

= 3 V

CC1

C

INT

DRIVER & PA
TURN ON

TXEN HIGH @ 10 µs

20 6040 80 100

tr & tf, RISE AND FALL TIME (

DRIVER & PA
TURN OFF

µ

s)

V

, V

CC1

CC2

TX EN HIGH
RX EN LOW

°

C)

= 3 V

Figure 8. Ramp V oltage versus Rise & Fall Time

MRFIC2004MOTOROLA RF DEVICE DATA

5

APPLICATIONS INFORMATION

DESIGN PHILOSOPHY

The MRFIC2004 was designed as a support IC for a CT2
chip-set. The other chips making up the chip-set are the
MRFIC2001 downconverter, the MRFIC2002 transmit mixer,
the MRFIC2003 antenna switch and the MRFIC2006 PA. A
complete CT2 front-end solution requires a ramp for burst
control, an inverter for complementary antenna switch con­trol and gain control (or an attenuator) for the transmitter low
power mode. In order to keep the other chips in the chip-set
relatively general purpose, yet provide the system designer
with an easily controlled solution, these functions were com­bined with a driver amplifier into one IC, the MRFIC2004.

THEORY OF OPERATION

The driver is a cascode design that exits the IC open­collector. Impedance matching must be done externally.
Since the output requires a bias inductor and DC blocking
capacitor, the output can be matched with these two ele­ments. To keep the driver unconditionally stable, it is recom­mended that a 300 – 400 ohm resistor be placed in parallel
with the bias inductor as close to the IC as possible. Since
the output impedance of the driver by itself is very high, the
resistor sets the output impedance. The input can be
matched with a series inductor followed by a shunt capacitor.
Alternatively, a series transmission line followed by a shunt
capacitor can be used. A DC block is also required on the
input.

Gain control is provided to meet the CT2 low power
mode requirement. The CT2 Common Air Interface specifi­cation requires the transmitter to be capable of dropping
the output power by 16 ± 4.0 dB. Although the driver has
34 dB of small signal gain control, it can be reduced by ad-

ding a resistor in series with the gain control pin. The value
of the resistor depends on the logic levels being used and
the amount of gain compression after the driver. Also, the
amount of gain control is a function of the driver input power
level. The input power should be kept less than –10 dBm to
allow for sufficient gain control to achieve the low power
mode. The gain control can also be used for P A output power
trimming. However, this is not an efficient method.

The ramp is an integrator which is used to slow down the
driver and PA turn-on and turn-off times to reduce AM splat­ter. By applying a pulse waveform to the input, a linear ramp
waveform is created at the output which is then applied to the
current mirrors of the driver and PA. An external integrating
capacitor is used so that the rise/fall time can be pro­grammed externally. A minimum value of 2.0 –2.4 nF is
needed to meet the CT2 Common Air Interface splatter spec­ification. For non-TDD/TDMA systems the ramp reverts to an
enable/disable function.

The inverter is CMOS/TTL compatible and was included to
provide complementary control for an antenna switch such
as the MRFIC2003. By applying the receiver enable control
line, RXEN, to the inverter the inverse RXEN
RXEN and RXEN can then be used to control the
MRFIC2003 antenna switch.

EVALUATION BOARDS

Evaluation boards are available 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.

will be created.

MRFIC2004
6

MOTOROLA RF DEVICE DATA

P ACKAGE DIMENSIONS

–T–

–A–

16 9

–B–

18

8 PLP

0.25 (0.010) B

G

K

C

SEATING

PLANE

D

16 PL

0.25 (0.010) A

M

S

B

T

M

S

CASE 751B–05

M

R

X 45

_

ISSUE J

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

S

F

J

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

DIM MIN MAX MIN MAX

A 9.80 10.00 0.386 0.393
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019
F 0.40 1.25 0.016 0.049
G 1.27 BSC 0.050 BSC
J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7

____

P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019

INCHESMILLIMETERS

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.

Mfax is a trademark of Motorola, Inc.

How to reach us:
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INTERNET: http://motorola.com/sps

MRFIC2004/D

◊

MRFIC2004MOTOROLA RF DEVICE DATA

7