Datasheet RF25A Datasheet (Conexant)

Data Sheet Conexant – Preliminary Doc. No. 101110A

Proprietary Information August 4, 2000

RF25A

RF25A for CDMA, and AMPS Applications

The RF25A device includes the following functional blocks:

• Low Noise Amplifier (LNA)

• RF Downconverted Mixer

• Intermediate Frequency (IF) Variable Gain Amplifier (VGA)

• In-Phaseand Quadrature (I/Q) Demodulator

• Voltage Controlled Oscillator (VCO)

The RF25A Application-Specific Integrated Circuit (ASIC) is a dual-mode,single­band receiver (Rx) intended for use in Code Division Multiple Access(CDMA)
portable phones in thecellular band. It can be used in CDMA mode or Advanced
Mobile Phone System (AMPS) mode.The ASIC provides excellent RF
performance with low DC power dissipation and isassembled in a lowcost, high
performance, 40-pin Land GridArray (LGA) 6 x 6 mm package.

The device incorporates all the components required toimplement the complete
dual-mode receiver front end;from the Low Noise Amplifier (LNA) to the In-Phase
and Quadrature (I/Q) demodulator stages, except for external SAW filters. The LNA
amplifies the incoming signaland outputs to anexternal SAW filter. After filtering,
the signal goes to the mixer for downconversion. The mixer output for the AMPS
mode is single-ended, followedby the external AMPSIntermediate Frequency (IF)
Surface Acoustic Wave (SAW) filter.The mixer output for the CDMA mode mixer
has balanced outputs forexternal IF SAW filtering. The IF SAW filters are followed
by a Variable Gain Amplifier (VGA) and and I/Q demodulator. The mode selection
is controlled by amode control pin.

The IF filter outputs are buffered at the input of the VGA,which has a dynamic
range greater than 90dB.

The on-chip Very High Frequency (VHF) Voltage Controlled Oscillators (VCO)
operates with an externaltank circuit to providethe Local Oscillator (LO) signal for
the I/Q demodulator.

The Gain, Noise Figure(NF), and third order Input Intercept (IIP3) of each stage in
the receiver chip are optimized to meet the system requirements for AMPSand
CDMA modes according to the TIA/EIA 98-B standard. Employingsilicon bipolar
technology, the ASIC is designed for high performance with a high level of
integration and provides acost-effective RF solution for dual-mode phone
applications

The RF25A pin-out is shown in Figure 1,a functional block diagramis illustrated in
Figure 2, and aschematic diagram in Figure 3.

Features

• Dual-Mode Operation

• Battery operation 2.7 to 3.6 V

• High level of integration

• Differential I/Qoutputs for baseband interfaces

• On-chip 100 to 600MHzVCO

• Low DC consumption: < 60 mA

• 40-pin Land Grid Array (LGA)6x6mmpackage

Applications

• CDMA and AMPS handset in the cellular band:

− AMPS

− CDMA (US)

− CDMA (Japan)

Figure 1.RF25ARx ASICPin-out

40-Pin LGA Package

C506

NC

LNA_DECOUPLE

NC

LNA_IN

VCC_RFBIAS

BIAS_SET

FM/CDMA

VCC_VCO

GND

TANK-

TANK+

31

30

29

28

27

26

25

24

23

22

21

NC

DIV2/DIV4

PLL+

Q+

Q-

SLEEP

PLL-

I+

I-

403938

343332

373635

NC

LNA_OUT

NC

VCC_MIXNCLO_IN

MIXEMIT

IF_TRAP

MIX_IN

121314

181920

151617

NC

NC

AMPS_MIXEROUT

CDMA_MIXEROUT-

CDMA_MIXEROUT+

MIX_BYPASS

VGA_AMPS_IN

VGA_CDMA_IN-

VGA_CDMA_IN+

VCC_IF

VGA_CONTROL

1

2

3

4

5

6

7

8

9

10

11

RF25A Rx ASIC

2 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

÷ 2,4

AMPS IF SAW

CDMA IF SAW

I

Q

RF25A

Rx ASIC

RF SAW(CELL)

PLL

LNA_IN

4

39

35

29

25

27,28

23,24

14,15

16
17

18

19

C507

LO_IN VGA_CONTROL

22

2

721

7

20

FM/CDMA

SLEEP

32

Figure 2. RF25ARxASIC Block Diagram

Rx ASIC RF25A

101110A Conexant – Preliminary 3
August 4, 2000 Proprietary Information

Technical Description

Low Noise Amplifier (LNA). The LNA is designed with a high

gain, low noise figure,and high 3

rd

order input intercept (IIP3)
performance. These parameters canbe optimized with the
mixer gain, noise figure, and IIP3 to achieve the cascade NF
and IIP3 system requirements.RF25A pin 2 isLNA decoupled,
requiring a RF bypasscapacitor to ground with minimal trace
length. Input and outputmatching networks are externalto the
Rx ASIC.

Mixers. The active doublebalanced mixer is designed for high
gain, a low noise figure, and high IIP3performance. The mixer
can also be optimizedfor RF performance to complement the
LNA RF performance, andsatisfy overall Rx NFand IIP3 system
requirements. The LO portoperates with a typicalLO drive level
of -10 dBm. Themixer has a balanced output to drive the IF
SAW filter in CDMA mode, and single-ended output to drive the
IF SAW filter in the AMPS mode.

Variable Gain Amplifier (VGA). Thehigh dynamic range
required by a CDMAhandset is achieved bythe VGA, which has
a minimum dynamic rangeof 90 dB anda control voltage range
from 0.5 to 2.5V. The VGA is common in both modes (CDMA
and AMPS) by switching its internal input buffers.

I/Q Demodulator. The I/Q Demodulator is designed for mobile
handset application. It hasan on-chip generated VHFLO with a
typical operating range of100 to 600 MHz and a typical I/Q
output operating range of 0 to 5 MHz. The I/Q Demodulator is
internally connected to theVGA output, and is fully differential to
reduce common mode noise.DC offsets between differentialI/Q
outputs, and between Iand Q channels, are extremely low to
facilitate compatibility with basebandinterfaces. The
I/Q Demodulator is alsodesigned to have very low amplitude
and phase imbalance.

VHF Oscillator. With external tankcircuits, the VCO p rovides
the LO signal to drive the demodulator, andthe prescaler of an
external Phase Locked Loop (PLL). The oscillator can operate
at two or four times at twice the IF frequency. Usinga selectable
divide ratio, the LOfor the I/Q demodulator is derived. The logic
signal to select thedivider ratio (2 or 4) is available on Pin 13
(DIV2/DIV4).

Mode Control. The operation of the chip is controlled by signals
at Pin 7 (FM/CDMA), Pin 20 (SLEEP), and Pin 13 (DIV2/DIV4).
All the switching is done internally. The supplyvoltage should be
present at all the VCC pins for normal operation. The modes
selected are shown inTable 4.

Electrical and Mechanical Specifications

Included in this documentare Tables 1 through 5 and Figures 1
through 4, which defineand illustrate the electrical and
mechanical specifications of the RF25A.

Table 1: RF25A Pin Assignments and Signal

Descriptions
Table 2: Absolute Maximum Ratings
Table 3: Recommended Operating Conditions
Table 4: Mode Control Select SignalSwitching
Table 5: RF25A RX ASIC Electrical Specifications
Figure 1: RF25A Rx ASIC Pin-out - 40-Pin LGA

6x6mmPackage
Figure 2: RF25A Rx ASIC Block Diagram
Figure 3 – 19: Typical Functional Block Performance
Figure 20: RF25A Schematic Diagram
Figure 21: RF25A Package Dimensions – 40-PinLGA

6x6mmPackage
Figure 22: 40-Pin LGA Tape and Reel Dimensions

ESD Sensitivity

The RF25A is a Class 1 device. The following extreme
Electrostatic Discharge (ESD) precautions arerequired
according to the HumanBody Model (HBM):

• Protective outer garments.

• Handle device in ESD safeguarded work area.

• Transport device in ESD shielded containers.

• Monitor and test all ESDprotection equipment.

The HBM ESD withstand threshold value, with respect to
ground, is ±1.5 kV.The HBM ESD withstand threshold value,
with respect to VDD(the positive power supplyterminal) is also
±1.5 kV.

RF25A Rx ASIC

4 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

Table 1. RF25A Pin Assignments and Signal Descriptions (1 of 3)

Pin # Name Description Equivalent Circuit

1 NC No connection.
2 LNA_DECOUPLE An RFbypasscapacitor(1000pF) with veryshorttrace shouldbeconnected tothispin.

3 NC No connection
4 LNA_IN The inputto LNAneedsexternal matching.The matching networkshouldbeplaced asclose

to thispin as possible.High Q componentsarerecommended to minimizethe effect onthe
noisefigure.A DC blockingcapacitor isnecessaryatthe input.

5 VCC_RFBIAS Supplyvoltageto the RFbias.An RF bypasscapacitorshouldbeconnectedfromthe pin to

ground withshort traces.

6 BIAS_SET

This pin sets thecellularRFbiascurrent.Typically,a180Ω resistoris connectedfromthe pin
to ground.

7 FM/CDMA Cellularbandmode select: 0=AMPS; 1 = CDMA.
8 VCC_VCO Voltagesupplypin to theVCObuffer. A bypasscapacitor shouldbeplaced closetothe device

frompin8 to pin 9.Thetrace shouldbeshortandconnected immediatelytothe ground plane

forbestperformance.
9 GND Ground returnfrom the VCObuffer.
10 TANK- Differentialtank connectionforthe cellularbandVCO. Care shouldbetaken during thelayout

of the external tank circuit toprevent parasitic oscillations.

11 TANK+ Differentialtank connectionforthe cellularbandVCO. Care shouldbetaken during thelayout

of the external tank circuit toprevent parasitic oscillations.

–

+

12 NC No connection.
13 DIV2/DIV4 Selectsthedivide ratio ofthe VCOtothe LO portofthe I/Q demodulator:0 = divideby2,

1 =divideby40.
14 PLL+ Differentialbuffered VCO output

15 PLL- Differentialbuffered VCOoutput

–

+

VccVcc

16 I+ I channeldifferential output.
17 I- I channeldifferential output.
18 Q+ Q channeldifferentialoutput.
19 Q- Q channeldifferential output.
20 SLEEP Activatessleepmode:0= sleep;1=enable

Rx ASIC RF25A

101110A Conexant – Preliminary 5
August 4, 2000 Proprietary Information

Table 1. RF25A Pin Assignments and Signal Descriptions (2 of 3)

Pin # Name Description Equivalent Circuit

21 VGA_CONTROL

VGA voltageinput. Input impedanceis greater than50KΩ.

22 VCC_IF Voltagesupplyto VGA andI/Qdemodulator stages.Supplyshould be wellregulated and

bypassedtoprevent modulationofthe signal bythe supply ripple.
23 VGA_CDMA_IN+ CDMA differentialVGA input

24 VGA_CDMA_IN- CDMA differentialVGA input

–

+

25 VGA_AMPS_IN AMPS VGAinput.

26 MIX_BYPASS Low frequencybypass fortheamps mixer.

27 CDMA_MIXEROUT+ CDMA differential mixeroutput. Requiresanexternal inductortoVCC. An externalmatch sets

outputimpedance.

28 CDMA_MIXEROUT- CDMAdifferentialmixer output.Requiresan external inductorto VCC. Anexternalmatch sets

outputimpedance.

–

+

29 AMPS_MIXEROUT AMPSmixer output.Requiresan externalinductorto VCC. Anexternalmatchsets output

impedance.

Vcc

30 NC No connection.
31 NC No connection.
32 LO_IN The mixerlocal oscillatorinput drive istypically–10dBm.

33 NC No connection.

RF25A Rx ASIC

6 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

Table 1. RF25A Pin Assignments and Signal Descriptions (3 of 3)

Pin # Name Description Equivalent Circuit

34 VCC_MIX Voltagesupplypin for themixers.AnRF bypass capacitorshould be connectedfrom thispin

to ground.It should beconnected asclose to thedeviceaspossible withveryshort trace

lengths.
35 MIX_IN Cellularmixerinput.

Pin 37

36 IF_TRAP The parallelLC circuitistuned to thecellularIFfrequency.

37 MIXEMIT Typicalground connection,buta 1.5 nHemitterdegeneration canbeused toimprovemixer

inputIP3.

See Pin35

38 NC No connection.
39 LNA_OUT Thisisan open collectorLNA output. Aninductormust be connectedto VCC. Thematchingis

done externallyto the chip.

40 NC No connection.

Rx ASIC RF25A

101110A Conexant – Preliminary 7
August 4, 2000 Proprietary Information

Table 2.Absolute MaximumRatings

Parameter Minimum Maximum Units

Supplyvoltage(VCC) -0.3 5.0 V
Inputvoltagerange -0.3 VCC V
LNA inputpower +5 dBm
Power dissipation 600 mW
Operatingtemperature -30 +80 °C
Storagetemperature -40 +125 °C

Table 3.Recommended OperatingConditions

Parameter Min Typical Max Units

Supplyvoltage(VCC) 2.7 3.0 3.6 V
Operatingtemperature -30 +25 +80 °C
Impedanceoflogic inputs 50

KΩ
Logic0 0.0 0.5 V
Logic1 VCC -0.5 VCC V

Table 4.ModeControlSelect Signal Switching

Pin # Name AMPS CDMA

7 FM/CDMA 0 1
13 DIV2/DIV4 0 0
20 SLEEP 1 1
Key: 0 =LOW

1=HIGH

RF25A Rx ASIC

8 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

Table 5. RF25A Rx ASIC Electrical Specifications (1 of 2)

TA =25°°°° C, VCC=3.0 V, PLO=-10 dBm

Parameter Symbol Test Condition Min Typical Max Units

Cellular LNA

Gain @881MHz 14.5 dB
Gain variation overband (869-894 MHz) 0.5 dB
Gain variation overtemperature 1.5 dB
Noisefigure@ 881 MHz 1.6 dB
Reverse isolation 20 dB
P1dB @input -5 dBm
IP3@input 8dBm
Inputreturnloss (869-894MHz) -12 dB
Outputreturnloss (869-894MHz) -15 dB
Totalsupplycurrent (adjustable) 11 mA

Cellular Mixer

Conversiongain (power):

CDMA mode
AMPS mode

14
11

dB
dB

Single-sidebandnoisefigure:

CDMA mode
AMPS mode

7.5
8

dB
dB

P1dB @input:

CDMA mode
AMPS mode

-6

-9

dBm
dBm

IP3@input:

CDMA mode
AMPS mode

+5
+3

dBm

dBm
MixerRFinput return loss,RF port 1(869-894MHz) -15 dB
LO inputpowerlevel -10 dBm
IF outputresistance:

CDMA mode(differential)
AMPS mode(single-ended)

3000
1000

Ω
Ω

IF frequencyrange 300 MHz
LO/RF inputisolation 20 dB
Totalsupplycurrent (Adjustable) 18 mA

Rx VGA-I/QDemodulator

Frequencyrange 50 300 MHz
Inputimpedance:

CDMA input(differential)
AMPS input(single-ended)

1000
1000

Ω
Ω

Gain:

Maximum
Minimum
Maximum(AMPS)
Minimum(AMPS)

53

–47

61

-39

54

–42

62

–34

55

–37

63

-29

dB
dB
dB
dB

Rx ASIC RF25A

101110A Conexant – Preliminary 9
August 4, 2000 Proprietary Information

Table 5. RF25A Rx ASIC Electrical Specifications (2 of 2)

TA =25°°°° C, VCC=3.0 V, PLO=-10 dBm

Parameter Symbol Test Condition Min Typical Max Units

Rx VGA-I/QDemodulator(continued)

Gain slope 45 dB/V
Gain slopelinearity (overany6 dB segment) -3 +3 dB
IF amplifier IIP3:

@ Maximumgain (CDMA mode)
@ Maximumgain (AMPS mode)

-50

-58 dBm
Input1dBcompression @minimum gain -10 dBm
IF amplifiernoise figure:

@ MaximumCDMA gain
@ MinimumCDMA gain
@ MaximumAMPS gain

6

50

8

dB
dB
dB

Output level:

CDMA
AMPS

2.75

5.5

mVrms

mVrms
Maximumoutputlevel 1.4 Vp-p
Gain variation overfrequency:

CDMA (1-630kHz)
AMPS (0.1-12.2kHz)

0.1

0.1

0.3

0.3

dB

dB
I+, I-,andQ+,Q-DC offset 6mVrms
I/Q gain mismatch 0.2 0.3 dB
I/Qphasemismatch 2 4 deg
I toQDCoffset 30 mV
Totalsupplycurrent (includesI/Q mixers,LObuffers, and

dividers)

12 mA

Oscillator

Frequencyrange 100 600 MHz
Phasenoise(fc = 200MHz,unloaded Q =20)@ 100 kHz

offset

-117 dBc/Hz

Secondharmonicdistortion (application dependent) -30 -26 dBc
Outputlevelto PLL (differential) 300 mVp-p
Outputimpedanceto PLL (differential) 300

Ω

Reverse isolation -30 -40 dB
Totalsupplycurrent 8mA

RF25A Rx ASIC

10 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

11

11.5

12

12.5

13

13.5

14

14.5

15

15.5

16

2.62.833.23.4

Vcc

Gain [dB]

-30C
25C
80C

Figure 3. Cellular LNA Gain @ 881 MHz

0

0.5

1

1.5

2

2.5

3

3.5

4

2.6 2.8 3 3.2 3.4

Vcc

NF [dB]

-30C
25C
80C

Figure 4. Cellular LNA Noise Figure @ 881 MHz

0

1

2

3

4

5

6

7

8

9

10

2.62.833.23.4

Vcc

IIP3 [dBm]

-30C
25C
80C

Figure 5. Cellular LNA IIP3 @ 881 MHz

0

2

4

6

8

10

12

14

2.62.833.23.4

Vcc

Gain [dB]

-30C
25C
80C

Figure 6. AMPSMixerGain

(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,

IF Frequency=85.38MHz)

0

2

4

6

8

10

12

2.6 2.8 3 3.2 3.4

Vcc

NF [dB]

-30C
25C
80C

Figure 7. AMPSNoise Figure

(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,

IF Frequency=85.38MHz)

0

1

2

3

4

5

6

7

8

9

2.6 2.8 3 3.2 3.4

Vcc

IIP3 [dBm]

-30C
25C
80C

Figure 8. AMPSMixer IIP3

(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,

IF Frequency=85.38MHz)

Rx ASIC RF25A

101110A Conexant – Preliminary 11
August 4, 2000 Proprietary Information

5

7

9

11

13

15

17

2.6 2.8 3 3.2 3.4

Vcc

Gain [dB]

-30C
25C
80C

Figure 9. CDMAMixer Gain

(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,

IF Frequency=85.38MHz)

5

6

7

8

9

10

2.6 2.8 3 3.2 3.4

Vcc

NF [dB]

-30C
25C
80C

Figure 10.CDMAMixer NoiseFigure

(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,

IF Frequency=85.38MHz)

0

1

2

3

4

5

6

7

8

2.6 2.8 3 3.2 3.4

Vcc

IIP3 [dBm]

-30C
25C
80C

Figure 11. CDMA Mixer IIP3

(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,

IF Frequency=85.38MHz)

-60

-40

-20

0

20

40

60

0123

Vctrl [V]

Gain [dB]

-30C
25C
80C

Figure 12. CMDA VGA + I/Q Gain vs. Temperature

(IF Frequency=85.38MHz)

-60

-40

-20

0

20

40

60

80

0123

Vctrl[V]

Gain [dB]

2.7V

3.0V

3.3V

Figure 13.CDMAVGA+ I/Q Over Supply

(IF Frequency=85.38MHz)

55

56

57

58

59

60

61

62

63

64

65

2.6 2.8 3 3.2 3.4

Vcc

Gain [dB]

-30C
25C
80C

Figure 14.VGA+I/QGain in AMPSMode

(Vcontrol=2.5V,Frequency = 85.38MHz)

RF25A Rx ASIC

12 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

-60

-58

-56

-54

-52

-50

2.6 2.8 3 3.2 3.4

Vcc

IIP3 [dBm]

-30
25
80

Figure 15.VGA+I/QIIP3 inAMPSMode

(Vcontrol=2.5V,Frequency = 85.38MHz)

50

51

52

53

54

55

56

57

58

59

60

2.6 2.8 3 3.2 3.4

Vcc

Gain [dB]

-30C
25C
80C

Figure 16.VGA+I/QGain in CDMAMode

(Vcontrol=2.5V,Frequency = 85.38MHz)

-50

-49

-48

-47

-46

-45

-44

-43

-42

-41

-40

2.6 2.8 3 3.2 3.4

-30C
25C
80C

Figure 17.VGA+I/QIIP3 inCDMAMode

(Vcontrol=2.5V,Frequency = 85.38MHz)

0

1

2

3

4

5

6

7

8

9

10

2.6 2.8 3 3.2 3.4
Vcc

NF (dB)

-

30C
25C
80C

Figure 19.VGA+I/QNoise FigureinCDMAMode

(Vcontrol=2.5V,Frequency = 85.38MHz)

5

6

7

8

9

10

11

12

13

14

15

2.6 2.8 3 3.2 3.4
Vcc

NF (dB)

-30C
25C
80C

Figure 18.VGA+I/QNoise FigureinAMPSMode

(Vcontrol=2.5V,Frequency = 85.38MHz)

Rx ASIC RF25A

101110A Conexant – Preliminary 13
August 4, 2000 Proprietary Information

6.8 nH

A2

1SV306

RX_VCC

RX_TUNE

A1

C2

56 nH56 nH

Cathode 1 Anode 1

Cathode 2 Anode 2

C1

RX_VCC

RXPLL+

RXPLL–

FM

800_LNA_IN

RX_VCC

RX_LO_800

RX_VCC

RX_AGC_ADJ

RXQ–

RXQ+

RXI–

RXI+

TO RF IMAGE
FILTER INPUT

FROM RF IMAGE
FILTEROUTPUT

RX_VCC

RX_VCC

DNI

33 pF

1000 pF

3.3 pF

33 pF

10

50 ohms

50 ohms

50 ohms

1nF1nF

1K

33 pF 180 1000 pF

5.1

220 pF 1000 pF5.1

4700 pF 4700 pF

33 pF33 pF 5.15.1

2KDNI

DNI

1000 pF

1000 pF

180 nH

1.5 nH

10

DNI

33 pF

1K

390 nH

3900 pF 0.1µF

1.5 K

39 nH

0.1 µF 1000 pF

0.1 µF 3900 pF

1000 pF

10

1K

1K

0

0

0

RX_VCC

10

SLEEP

33 pF 0.1 µF

NOTES:

1. COMPONENT VALUES MAY CHANGE

2. DNI =DO NOT INSTALL

0

RF25A

NC

NC

IF_TRAP

MIX_IN

MIXEMIT

NC

LO_IN

NC

TANK+

I+

PLL–

I–

Q+

Q–

DIV2/DIV4

SLEEP

LNA_DECOUPLE

NC

NC

LNA_IN

VCC1
BIAS_SET
FM_CDMA

VCC2

GND

AMPS_IF_OUT

NC

CDMA_IF_OUT–
CDMA_IF_OUT+
MIX_BYPASS

VGA_CDMA_IN–
VGA_CDMA_IN+
VCC3
VGA_CONTROL

11

1
2
3
4
5
6
7
8
9

10

21

31
30
29
28
27
26
25
24
23
22

121314151617181920

403938373635343332

VGA_AMPS_IN

NC

VCC4

PLL+

TANK–

LAN_OUT

FROM CDMA
IF SAW OUTPUT

FROM AMPS IFSAW OUTPUT

3900 pF
3900 pF
3900 pF

DNI 33 pF

4.7 nF

TO CDMA
IF SAW INPUT

TO AMPS IF SAWINPUT

RX_VCC

DNI

39 nH

1.5 K

33 pF 0.1 µF

18 pF

Figure 20.RF25ASchematicDiagram

RF25A Rx ASIC

14 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

C822

All dimensions are in millimeters

Pin #1

6.0 ± 0.05

0.500

0.300 ± 0.05

0.355 ± 0.05

1.36 ± 0.10

0.35 ± 0.05

2.936

R1.500

2.936

Solder Mask

Pin #1 Mark

Pin #1

Downset Paddle

Mold

Substrate

6.0 ± 0.05

Figure 21. RF25A Package Dimensions - 40-pin LGA 6 x 6mm Package

Rx ASIC RF25A

101110A Conexant – Preliminary 15
August 4, 2000 Proprietary Information

7˚ MAX

6.35

1.59

6.35

1.75

1.50

4.00

8.00

5.50

1.50 ± 0.25

0.292 ± 0.02

12.00 +0.30/-0.10

8˚ MAX

NOTES:

1. Carrier Tape Material: Black Conductive Polycarbonate

2. Cover Tape Material: Transparent Conductive PSA

3. Cover Tape Size: 9.3 mm width

4. Tolerance: .XX = ± 0.10

5. All dimensions are in millimeters

CNXT022

A0 B0K0

Figure 22.40-pinLGATape and Reel Dimensions

RF25A Rx ASIC

16 Conexant – Preliminary. 1011110A

Proprietary Information August 4, 2000

Ordering Information

Model Name ManufacturingPart

Number

ProductRevision

RF25A RF25A-12 12

©2000,Conexant Systems,Inc.All RightsReserved.
Informationin this documentisprovided inconnectionwithConexant Systems,Inc.("Conexant")products.Thesematerials areprovidedby Conexantasa service toits

customersandmay be usedforinformational purposesonly.Conexant assumesnoresponsibilityforerrors oromissionsinthesematerials.Conexant maymakechanges to
specificationsandproductdescriptionsatany time,withoutnotice. Conexantmakesnocommitmenttoupdate the informationand shall havenoresponsibility whatsoever
forconflictsor incompatibilitiesarising fromfuture changesto its specificationsand product descriptions.

No license,express orimplied,byestoppel or otherwise,to any intellectualpropertyrights isgrantedbythis document.Exceptas providedinConexant’s Termsand
ConditionsofSale for suchproducts,Conexantassumes no liabilitywhatsoever.

THESE MATERIALSAREPROVIDED "AS IS" WITHOUTWARRANTYOF ANY KIND,EITHEREXPRESS OR IMPLIED, RELATINGTOSALE AND/OR USE OF
CONEXANT PRODUCTSINCLUDINGLIABILITY OR WARRANTIESRELATINGTO FITNESS FOR APARTICULARPURPOSE, CONSEQUENTIAL ORINCIDENTAL
DAMAGES, MERCHANTABILITY,OR INFRINGEMENT OF ANYPATENT,COPYRIGHT OR OTHER INTELLECTUALPROPERTYRIGHT. CONEXANT FURTHER
DOES NOTWARRANTTHE ACCURACY OR COMPLETENESS OFTHEINFORMATION, TEXT, GRAPHICSOROTHER ITEMS CONTAINED WITHINTHESE
MATERIALS.CONEXANTSHALLNOT BE LIABLE FORANYSPECIAL, INDIRECT, INCIDENTAL,ORCONSEQUENTIAL DAMAGES, INCLUDINGWITHOUT
LIMITATION,LOSTREVENUES OR LOST PROFITS,WHICHMAY RESULT FROM THEUSEOF THESE MATERIALS.

Conexantproductsare not intendedforuse in medical,lifesavingor life sustainingapplications.Conexantcustomers usingorselling Conexant products foruseinsuch
applicationsdo so at theirown risk andagreeto fullyindemnifyConexant foranydamages resultingfromsuch improperuseor sale.

The followingare trademarksofConexant Systems,Inc.:Conexant™,theConexant C symbol,and “What’s Nextin CommunicationsTechnologies”™.Productnames or
serviceslisted inthispublication areforidentificationpurposesonly,and may be trademarksofthird parties.Third-partybrandsand names arethe propertyof their
respectiveowners.

Additionalinformation,postedatwww.conexant.com

, isincorporated byreference.

Reader Response:Conexantstrivestoproduce qualitydocumentationandwelcomesyourfeedback. Pleasesend commentsand suggestionsto
[e-mail] questions,contact yourlocalConexantsales officeorfield applicationsengineer.

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