AWT924S10 - Anadigics, Inc.

AWT924S10

TX POWER MMIC

Advanced Product Information

Rev. 1

GSM/DCS DUAL BAND GaAs POWER AMPLIFIER IC

DESCRIPTION

The AWT924 is a monolithic GaAs Power Amplifier. It can be

used in the following dual band handset applications:

GSM900/DCS1800.

Bias Control Circuit

Band

Select

Neg.

Voltage

Generator

Vc VD1 VD2 VD3

RF_OUTRF_IN

VDC

VSS_IN

VREF

PIN SIGNAL MAX RATING PIN SIGNAL M AX R ATING

D1 +7 V DC 6V

SS -7 VDC(*)

2RF

IN +15 dBm 7 VDC +7 VDC

C+7 V DC 9V

D2 +7 VDC

REF +5 V DC 12,13 VD3 / RFOUT +7 VDC

DB +7 V DC -- -

MAXIMUM RATINGS

BLOCK DIAGRAM

S10

16-SSOP

16 Pin Plastic Package with Heat Slug

Notes: 1. (*) Negative voltage of - 3.5 V at least must be present at this pin

2. Operating temperature: - 20 to 90°C

3. Storage temperature: -55 to 100°C

AWT924S10

Advanced Product Information - Rev. 1

ELECTRICAL CHARACTERISTICS  GSM (1)

Pin = +6.0 dBm, f = 890 - 915 MHz, VDB=VD1 =VD2 =VD3 = +4.8 V, VSS = -4 V, VC = 0, Tc = 25OC, Zo = 50W

Notes: 1. As measured in ANADIGICS test fixture under pulsed operation ( PW = 577mS, DC = 1:8).

2. Measured @ POUT = 34.7 dBm.

3. Noise in RX Frequency band @ bandwidth = 30 KHz, frx = 935 - 960 MHz.

ELECTRICAL CHARACTERISTICS  DCS1800 (1)

Pin = +6.0 dBm, f = 1710 - 1785 MHz, VDB=VD1 =VD2 =VD3 = +4.8 V, VSS = -4 V, VC =4.8V, Tc = 25OC, Zo = 50W

Notes: 1. As measured in ANADIGICS test fixture under pulsed operation (PW = 577mS, DC = 1:8).

2. Measured @ 32.0 dBm.

3. Noise in RX frequency band @ bandwidth = 30 KHz. frx = 1805-1880 MHz.

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AWT924S10

Advanced Product Information - Rev. 1

ADC

PIN SIGNAL DESCRIPTION

D1 1st stage drain supply (+ 4.8 V)

2RF

IN RF input power

CControl voltage for band selection (0V-GSM, 3.0V – DCS)

REF Bias control

DB Bias circuit su pply

B/VSS Negative supply connection

DC Change pump suppy

AChange pump capacitor connection

D2 2nd stage drain supply (+ 4.8 V)

10 GND RF and DC ground

11 GND RF and DC Ground

12,13 RFOUT / VD3 RF output and DC input for 3d stage

14 GND RF and DC Ground

15 GND RF and DC Ground

16 N/C

RECOMMENDED OPERATING PROCEDURE ON THE EVALUATION BOARD

Power Up:

Dual supply operation, (for Single Supply operation, please contact ANADIGICS).

a) Begin by setting all power supplies to zero volts.

b) Make sure that the input RF power is turned off.

c) Apply 4.0 V to VSS (Pin 6)

d) Apply +4.8 V to VDB VD1, VD2 and VD3.

e) Set VC to 0.0 Volts for GSM operation or set VC to 4.8 Volts for DCS operation.

f) Apply +6 dBm of RF power to pin 2 for GSM/DCS operation.

g) Apply a positive pulse train for GSM and DCS operation to VREF (pin 4). Adjust pulse amplitude for desired

output power.

Power Down:

To power down the device follow the above procedure in reverse order.

AWT924 GSM PA TEST FIXTURE SCHEMATIC

IN TLINE OUT

AND630

1000p 220p

33p

Ω

220p

0.01u

22u

SD-103

22K

47K

MMUN2234

DUT

10p

33p

Z-30

18nH

1000p

220p

4.7nH

RF_OUT

VD3

VD2

VD1

RF_IN

VREF

VDB

CB/VSS

VDC

VSS_ON

0.01u

AWT924S10

Advanced Product Information - Rev. 1

GSM900 TEST FIXTURE

Turn on sequence:

1. Apply negative voltage (VSS = 4.5V), before applying positive voltage to

drains.

2. Set VC to 0.0V for GSM operation.

3. Apply positive voltage (+4.8V) to VDB, VD1, VD2, VD3 pins.

4. Pulse VREF on and adjust for desired output power level.

Turn off sequence in reverse order of above

AWT924S10

Advanced Product Information - Rev. 1

DCS PA TEST FIXTURE SCHEMATIC

Turn on sequence:

1. Apply negative voltage (VSS = 4.5V), before applying positive voltage to drains.

2. Set VC to +4.8V for DCS operation.

3. Apply input power.

4. Apply positive voltage (+4.8V) to VDB, VD1, VD2, VD3 pins.

5. Pulse VREF on and adjust for desired output power level.

Turn off sequence in reverse order of above.

IN TLINE OUT

AND630

1000p 220p

33p

Ω

220p

0.01u

22u

SD-103

22K

47K

MMUN2234

DUT

1.5p

33p

Z-30

18nH

1000p

220p

4.7nH

RF_OUT

VD3

VD2

VD1

RF_IN

VREF

VDB

CB/VSS

VDC

VSS_ON

2.7p

0.01u

ANADIGICS, Inc.

35 Technology Drive

Warren, New Jersey 07059

Tel: (908) 668-5000 / Fax: (908) 668-5132

Email: Mkg@anadigics.com

www.anadigics.com

IMPORTANT NOTICE

ANADIGICS, Inc. reserves the right to make changes to its products or discontinue any product at any time without notice. The Advanced Product data

sheets and product specifications contained in this data sheet are subject to change prior to a products formal introduction. The information in this data

sheet has been carefully checked and is assumed to be reliable. However, ANADIGICS assumes no responsibility for inaccuracies. ANADIGICS strongly

urges customers to verify that the information they are using is current before placing orders.

WARNING

ANADIGICS products are not intended for use in life support appliances, device, or systems. Use of an ANADIGICS product in any such application

without written consent is prohibited.

AWT924S10

Advanced Product Information - Rev. 1

CASE OUTLINE AND PIN DESCRIPTION