Specifications and information are subject to change without notice.
WJ Communications, Inc Phone 1-800-WJ1-4401 FAX: 408-577-6621 e-mail: sales@wj.com Web site: www.wj.com Page 1 of 12 August 2006
AH212
1 Watt High Linearity, High Gain InGaP HBT Amplifier Product Information
Product Features
1800 – 2400 MHz
26 dB Gain
+30 dBm P1dB
+46 dBm Output IP3
+5V Single Positive Supply
Internal Active Bias
Lead-free/green/RoHS-compliant
SOIC-8 & 4x5mm DFN Package
Applications
Mobile Infrastructure
WiBro Infrastructure
TD-SCDMA
Product Description
The AH212 is a high dynamic range two-stage driver
amplifier in a low-cost surface mount package. The
InGaP/GaAs HBT is able to achieve superior performance
for various narrowband-tuned application circuits with up
to +46 dBm OIP3 and +30 dBm of compressed 1-dB
power. The amplifier is available in an industry-standard
SMT lead-free/green/RoHS-compliant SOIC-8 or 4x5mm
DFN package. All devices are 100% RF and DC tested.
The product is targeted for use as linear driver amplifier for
various current and next generation wireless technologies
such as GPRS, GSM, CDMA, W-CDMA, TD-SCDMA,
and WiBro, where high linearity and high power is
required. The internal active bias allows the AH212 to
maintain high linearity over temperature and operate
directly off a +5 V supply.
Functional Diagram
AH212-S8G
AH212-EG
Specifications (1)
Parameters Units
Min Typ
Max
Operational Bandwidth MHz 1800 2400
Test Frequency MHz 2140
Gain dB 22.2 25
Input Return Loss dB 25
Output Return Loss dB 9
Output P1dB dBm +29 +29.5
Output IP3 (2) dBm +43.5 +46
Noise Figure dB 6.0
W-CDMA Channel Power
@ -45 dBc ACLR dBm +21
Operating Current Range , Icc mA 340 400 500
Stage 1 Amp Current, Icc1 mA 85
Stage 2 Amp Current, Icc2 mA 315
Device Voltage, Vcc V 5
1. Test conditions unless otherwise noted: 25 ºC, +5V, in tuned application circuit.
2. 3OIP measured with two tones at an output power of +15 dBm/tone separated by 1 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
Absolute Maximum Rating
Parameter Rating
Operating Case Temperature -40 to +85 C
Storage Temperature -65 to +150 C
RF Input Power (continuous) +26 dBm
Device Voltage +7 V
Device Current 900 mA
Device Power 5 W
Junction Temperature +250 ºC
Operation of this device above any of these parameters may cause permanent damage.
Typical Performance (1)
Parameters Units Typical
Frequency MHz 1960 2140
Gain (3) dB 25.8 25
Input Return Loss dB 15 25
Output Return Loss dB 11 9
Output P1dB (3) dBm +30 +29.5
Output IP3 dBm +48.5 +46
IS-95A Channel Power
@ -45 dBc ACPR dBm +23.5
W-CDMA Channel Power
@ -45 dBc ACLR dBm +21
Noise Figure dB 5.5 6.0
Supply Bias +5 V @ 400 mA
3. The performance is shown for the AH212-S8G (SOIC-8 package) at 25ºC. The AH212-EG in a 4x5
mm DFN package offers approximately 0.5dB more gain and 0.5 dB higher P1dB.
Ordering Information
Part No. Description
AH212-S8G 1 Watt, High Gain InGaP HBT Amplifier
(lead-free/green/RoHS-compliant SOIC-8 package)
AH212-EG 1 Watt, High Gain InGaP HBT Amplifier
(lead-free/green/RoHS-compliant 12-pin 4x5mm DFN package)
AH212-S8PCB1960 1960 MHz Evaluation Board
AH212-S8PCB2140 2140 MHz Evaluation Board
AH212-EPCB1960 1960 MHz Evaluation Board
AH212-EPCB2140 2140 MHz Evaluation Board
1
2
3
4
8
7
6
5
8
7
6
5
Vcc2 / RF Out
N/C
Vcc2 / RF Out
Vcc1
Vbias1
RF In
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