WS1102

3 x 3 Power Amplier Module for CDMA/AMPS (824–849 MHz)

Data Sheet

Description

The WS1102 is a CDMA (Code Division Multiple Access)

and AMPS (Advanced Mobile Phone Service) power

amplier module designed for handsets operating

in the 824–849 MHz bandwidth. The WS1102

features CoolPAM circuit technology that oers

state-of-the-art reliability, temperature stability and

ruggedness.

The WS1102 meets stringent CDMA linearity

requirements to and beyond 28 dBm output power. The

3 mm x 3 mm form factor 8-pin surface mount package

is self contained, incorporating 50 ohm input and output

matching networks.

Features

• Good linearity

• Excellent eciency: 40% at Pout = 28 dBm;

19% at Pout = 16 dBm (without a DC/DC converter)

• 8-pin surface mounting package

(3 mm x 3 mm x 1.1 mm)

• Internal 50Ω matching networks for both RF Input

and output

•

CDMA 95A/B, CDMA2000-1X/EVDO

Applications

• Digital Cellular (CDMA)

• Analog Cellular (AMPS)

Functional Block Diagram

Input

Match

Inter

Stage

Match

Output

Match

Bias Circuit & Control Logic

DA PA

Vcc2(8)

Vref

(

)

Vcont

(

)

Vcc1(1)

RF Input (2)

RF Output (7)

MMIC

MODULE

Table 1. Absolute Maximum Ratings

[1]

Parameter Symbol Min. Nominal Max. Unit

RF Input Power P

– – 10.0 dBm

DC Supply Voltage V

– 3.4 5.0 V

DC Reference Voltage V

ref

– 2.85 3.3 V

Storage Temperature T

stg

-55 – +125 °C

Table 2. Recommended Operating Conditions

Parameter Symbol Min. Nominal Max. Unit

DC Supply Voltage V

3.2 3.4 4.2 V

DC Reference Voltage V

ref

2.75 2.85 2.95 V

Mode Control Voltage

– High Power Mode V

cont

– 0 – V

– Low Power Mode V

cont

– 2.85 – V

Operating Frequency F

824 – 849 MHz

Ambient Temperature T

-30 25 85 °C

Table 3. Power Range Truth Table

Power Mode Symbol Vref Vcont

[2]

Range

High Power Mode

[3]

PR2

2.85 Low ~28 dBm

Low Power Mode

[3]

PR1 2.85 High ~16 dBm

Shut Down Mode

[4]

– 0.00 – –

Notes:

1. No damage assuming only one parameter is set at limit at a time with all other parameters

set at or below nominal value.

2. High (1.5V – 3.0V), Low (0.0V – 0.5V).

3. To change between High Power Mode and Low Power Mode, switch Vcont accordingly.

4. In order to shut down the module, turn o V

ref

accordingly.

Table 4-1. Electrical Characteristics for CDMA Mode (Vcc=3.4V, Vref=2.85V, T=25°C)

Characteristics Symbol Condition Min. Typ. Max. Unit

Gain

Gain_hi Pout = 28.0 dBm 25.5 28.5 dB

Gain_low Pout = 16.0 dBm 15.5 18.5 dB

Power Added Eciency

PAE_hi Pout = 28.0 dBm 37 40 %

PAE_low Pout = 16.0 dBm 16 19 %

Total Supply Current

Icc_hi Pout = 28.0 dBm 460 500 mA

Icc_low Pout = 16.0 dBm 60 80 mA

Quiescent Current

Iq_hi High Power Mode 60 85 110 mA

Iq_low Low Power Mode 8 14 22 mA

Reference Current

Iref_hi Pout = 28.0 dBm 3 7 mA

Iref_low Pout = 16.0 dBm 4 8 mA

Control Current

[1]

Icont Pout = 16.0 dBm 0.2 1 mA

Total Current in Power-down Mode Ipd Vref = 0.0V 0.2 5 µA

ACPR in High Power Mode

0.90 MHz oset ACPR1_hi Pout = 28.0 dBm -50 -47 dBc

1.98 MHz oset ACPR2_hi Pout = 28.0 dBm -60 -57 dBc

ACPR in Low Power Mode

0.90 MHz oset ACPR1_low Pout = 16.0 dBm -52 -47 dBc

1.98 MHz oset ACPR2_low Pout = 16.0 dBm -62 -57 dBc

Harmonic Suppression Second 2f0 Pout = 28.0 dBm -33 -30 dBc

Third 3f0 Pout = 28.0 dBm -55 -40 dBc

Input VSWR VSWR 2:1 2.5:1 VSWR

Stability (Spurious Output) S VSWR 6:1, All phase -60 dBc

Noise Power in RX Band RxBN Pout = 28.0 dBm -136 -132 dBm/Hz

Ruggedness Ru Pout < 28.0 dBm, Pin < 10.0 dBm 10:1 VSWR

Table 4-2. Electrical Characteristics for AMPS Mode (Vcc=3.4V, Vref=2.85V, T=25°C)

Characteristics Symbol Condition Min. Typ. Max. Unit

Gain Gain_a Pout = 31.0 dBm 25 28 31 dB

Power Added Eciency PAE_a Pout = 31.0 dBm 50 54 %

Total Supply Current Icc_a Pout = 31.0 dBm 685 740 mA

Quiescent Current Iq_a High Power Mode 60 85 110 mA

Reference Current Iref_a Pout = 31.0 dBm 4 10 mA

Total Supply Current in Power-down Mode Ipd Vcc=3.4, Vref=0V, Vcont=0V 0.2 5 µA

Harmonic Suppression Second 2f0 Pout = 31.0 dBm -33 -30 dBc

Third 3f0 Pout = 31.0 dBm -50 -40 dBc

Input VSWR VSWR 2:1 2.5:1 VSWR

Stability (Spurious Output) S VSWR 6:1, All phase -60 dBc

Noise Power in RX Band RxBN Pout = 31 dBm -136 -130 dBm/Hz

Ruggedness Ru Pout<31 dBm, Pin<10.0 dBm 10:1 VSWR

Note:

1. Control current when series 6.2okm is used.

Part #	WS1102-TR1
Description	MODULE PA CDMA/AMPS 824-849MHZ
Category	IC
Availability	In Stock
Qty	51

Qty	Price
1 - 10	$15.24600
11 - 21	$12.12750
22 - 32	$11.43450
33 - 42	$10.62600
43 +	$9.47100

WS1102-TR1

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