Datasheet RF2466, RF2466PCBA Datasheet (RF Micro Devices)

ü

6-7

6

MIXERS

Product Description

Ordering Information

Typical Applications

Features

Functional Block Diagram

RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro,NC 27409, USA

Tel [phone]

Fax [phone]

http://www.rfmd.com

Optimum Technology Matching® Applied

Si BJT GaAs MESFETGaAs HBT
Si Bi-CMOS

SiGe HBT

Si CMOS

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RF2466

3V CDMA/FM MIXER

• CDMA/FM Cellular Systems

• Supports Dual-Mode AMPS/CDMA

• Supports Dual-Mode TACS/CDMA

• General Purpose Downconverter

• Commercial and Consumer Systems

• Portable Battery-Powered Equipment

The RF2466 is a receiver dual downconverter designed
for the receive s ection of dual-mode CDMA/FM cellular
applications. It is designed to downconvert RF signals
while providing 14dB gain in CDMA mode and 7dB gain
in FM mode. Also, it features IF output selection and
power down mode. Noise Figure, IP3, and other specs
are designed to be compatible with the IS-95 Interim
Standard for CDMA cellular communications. The IC is
manufactured on an advanced Silicon Bipolar process.

• Dual Mode CDMA/AMPS

• Dual Mode JCDMA/TACS

• Digitally Selectable IF Outputs

• 500MHz to 1100MHz Operation

• Power Down Mode

RF2466 3V CDMA/FM Mixer
RF2466 PCBA Fully Assembled EvaluationBoard

6

Rev A7 010717

3.75

3.75

+

1.50 SQ

4.00

4.00

1

0.45

0.28

3.20

1.60

0.75

0.50

12°

INDEX AREA

3

1.00

0.90

0.75

0.65

0.05

0.00

NOTES:

5 Package Warpage: 0.05max.

4

Pins 1and9 are fused.

Shaded PinisLead 1.1
Dimension appliestoplated terminal and is measured between

0.10 mmand0.25 mm from terminal tip.

2

The terminal#1identifier and terminal numbering convention
shall conformtoJESD 95-1 SPP-012. Details of terminal #1
identifier areoptional,but must be located within the zone
indicated. Theidentifiermay be either a mold or marked
feature.

3

0.80
TYP

2

1

Dimensions in mm.

Package Style: LCC, 16-Pin, 4x4

6-8

RF2466

Rev A7 010717

6

MIXERS

Absolute Maximum Ratings

Parameter Rating Unit

Supply Voltage -0.5 to +5 V

DC

Operating Ambient Temperature -40 to +85 °C
Storage Temperature -40 to +150 °C

Parameter

Specification

Unit Condition

Min. Typ. Max.

Overall

T= 25°C, VCC=3.0V, RF=881MHz,
LO=966MHz @ 0dBm, IF1= CDMA,

IF2=FM
RF Frequency Range 200 to 1000 MHz
LO Frequency Range 500 to 1100 MHz
IF Frequency Range 0.1 to 250 MHz
Conversion Gain 12.5 14 dB IF1, 1kΩ balanced load.

5 7 dB IF2, 870 Ω load.

Noise Figure 9 dB IF1 single sideband.

10.5 dB IF2 single sideband

Input VSWR <1.5:1 IF1 with external matching

<2:1 IF2 with external matching

Input IP3 +3 +7 dBm IF1

+3 +7 dBm IF2

Input P1dB -7 dBm IF 1

-4 dBm IF2
MIX IN to IF1, IF2 Rejection 35 dB
IF1, IF2 Output Freq. Range 70to 100 MHz With external IF interface network
Output Impedance >1 kΩ IF1, balanced, open collector

870 Ω IF2, single ended, with external inductor.

LO Input

LO Input Range -10 -3 0 dBm
LO IN to RF Input Rejection 20 dB
LO IN to IF1, IF2 Rejection 15 dB
LO Input VSWR <2:1 IF1 with external matching network

2.5 IF2 with external matching network

Power Supply

Voltage 2.7 3.0 4.0 V
Current Consumption 16 21 mA IF1 selected

12 16 mA IF2 selected

5 µAENABLE=0

Caution! ESD sensitive device.

RF Micro Devices believes thefurnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).

6-9

RF2466

Rev A7 010717

6

MIXERS

Pin Function Description Interface Schematic

1GND

Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.

2 IF SELECT

Control line for IF out select. A logic “low” enables the FM output. A
logic “high” enables the CDMA output. The threshold voltage is 1 .6V,
and the pin draws less than 50µA when selected.

3PD

Power down pin. A logic “low” (<1.6V) turns the part off. A logic “high”
(>1.6V)turns the part on. In addition, pin 2(IF SELECT) should also be
taken low during power down.

4LO+

Mixer LO balanced input pin. For single-ended input operation, this pin
is used as an input and pin 5 is bypassed to ground.

5LO-

Same as pin 4 except complementary input. See pin 4.

6GND

Ground connection for the mixer. For best performance, keep traces
physically short and connect immediately to ground plane.

7 MIXER IN

Mixer RF input pin. This pin is internally DC-biased and should be DC
blocked if connected to a device with DC presen t. External matching
network sets RF and IF impedance for optimum performance.

8BYPASS

Internal voltage reference. External RF and IF bypassing is requi red.
The trace length between the pin and the bypass capacitors should be
minimized. The ground side of the bypass capacitors should connect
immediately to ground plane.

9GND

Same as pin 1.

10 GND

Same as pin 1.

11 VCC

Supply voltage for the mixers, bias circuits, and control logic. External
RF and IF bypassing is required. The trace length between the pin and
the bypass capacitors should be minimized. T he ground side of the
bypass capacitors should connect immediately to ground plane.

12 FM-

Same as pin 13, except complimentary output. For typical single ended
operation, this pin is connected directly to V

CC

.

See pin 13.

13 FM+

FM IF output pin. This is a balanced output, but is typically used as a
single-ended output. The internal circuitry, in conjunction with an exter­nal matching/bias inductor to V

CC

, sets the operating impedance. This

inductor is typically incorporated in the matching network between the
output and IF filter. The net output impedance, including the external
inductor, is about 870Ω at 85MHz. Because this pin is biased to V

CC

,a

DC blocking capacitor must be used if the IF filter input has a DC path
to ground. See Application Schematic.

14 GND

Same as pin 1.

15 CDMA+

CDMA IF output pin. This is a balanced output. The internal c ircuitry, in
conjunction with an external matching/bias inductor to V

CC

, sets the

operating impedance. This inductor is typically incorporated in the
matching network between the output and IF filter. The net output
impedance, including the external inductor, at 85MHz is higher than
1kΩ, even though the part is designed to drive a 1kΩ load. Because
thispinisbiasedtoV

CC

, a DC blocking capacitor must be used if the IF

filter input has a DC path to ground. See Application Schematic.

16 CDMA-

Same as pin 15, except complementary output. See pin 15.

C1

50 k

Ω

PD

50 k

Ω

LO IN+ LO IN-

MIX IN

LO OUT

VCC2

BIAS

IF2-IF2+

2.1 k

Ω

8.5 pF

IF1-IF1+

1.2pF1.2
pF

GND2

6-10

RF2466

Rev A7 010717

6

MIXERS

Pin Function Description Interface Schematic

Pkg

Base

GND

Ground connection. The backside ofthe package should be soldered to
a top side ground pad which is connected to the ground plane with mul­tiple vias.

6-11

RF2466

Rev A7 010717

6

MIXERS

Application Schematic

9

7

6

5

8

1

2

1

0

1

1

4

3

2

1

161

5

1

4

1

3

33 nF

15 nH

15 nH

MIX IN

LO IN

8.2 nH

3.3 pF

L

V

CC

FM

Saw

Filter

L L

L

CDMA

Saw

Filter

200 Ω

10 pF

IF SELECT

PD

33 nF 1 µF

FM IF OUT

CDMA IF OUT

33 nF

6-12

RF2466

Rev A7 010717

6

MIXERS

Evaluation Board Schema t ic

(Download Bill of Materials from www.rfmd.com.)

9

7

6

5

8

1

2

1

0

1

1

4

3

2

1

1615141

3

1

7

T1

**XFMER

R1

33

Ω

R2

68

Ω

50Ωµstrip

J3

CDMA IF1

L2

390 nH

L4

3.3 uH

VCC

IF SEL

ENABLE

C3

9pF

L3

3.3 uH

C5

33 nF

VCC

C6

10 pF

L5

8.2 nH

C7

3.0 pF

50Ωµstrip

J1

LO IN

C9

33 nF

C8

33 nFL615 nH

50Ωµstrip

J2

MIXER IN

L7

15 nH

L8*

TBD

50Ωµstrip

1
4

3
6

25

F1

GND GND
GND GND

OUT IN

L1

150 nHC133 nF

J3

R3

10

Ω

VCC

C2

10 pF

50Ωµstrip

J4

FM IF2

**Core: Fair-Rite Balun #2865002402

L12: 3 turns #30 AWG(Green)
L34: 12 turns #32 AWG(Red)
One turn = one passthrough BOTH holes.

Winding starts and finishes onsame end of core.
L12 and L34 exit oppositeends of core.
F1: filter

2466400 Rev A

R4

200

Ω

0 0 Off
0 1 Off
1 0 FM
1 1 CDMA

Enable IF Select Stage

C4

9pF

P2-3 ENABLE

GND

P2-1 IF SEL

P2

1
2
3

P1

1
2
3

P1-3 NC

GND

P1-1 VCC

C10

1uF

+

6-13

RF2466

Rev A7 010717

6

MIXERS

Evaluation Board Layout

Board Size 3.070” x 2.928”

Board Thickness 0.056”, Board Material FR-4, Multi-Layer

6-14

RF2466

Rev A7 010717

6

MIXERS

CDMA Gain and Noise Figure

versus LO Drive

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0

LO Drive (dBm)

CDMA Gain (dB)

8.0

8.5

9.0

9.5

10.0

10.5

11.0

11.5

12.0

12.5

13.0

CDMA NF (dB)

CDMAGain(dB)
CDMANF (dB)

CDMA IIP3 and Noise Figure

versus LO Drive

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0

LO Drive (dBm)

CDMA IIP3 (dBm)

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

CDMA NF (dB)

CDMAIIP3(dBm)
CDMANF (dB)

FM Gain and Noise Figure

versus LO Drive

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

-10.0-9.0-8.0-7.0-6.0-5.0-4.0-3.0-2.0-1.00.0

LO Drive (dBm)

FM Gain (dB)

6.0

8.0

10.0

12.0

14.0

16.0

FM NF (dB)

FM Gain (dB)
FM NF (dB)

FM IIP3 and Noise Figure

versus LO Drive

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

-10.0-9.0-8.0-7.0-6.0-5.0-4.0-3.0-2.0-1.00.0

LO Drive (dBm)

FM IIP3 (dBm)

6.0

7.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

15.0

FM NF (dB)

FMIIP3(dBm)
FMNF(dB)