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Watkins-Johnson:
The
Cell
Extenders
Power Amplifiers
SA1056
CDMA 1.5-Watt 1.93 GHz to 1.99 GHz Linear Power Amplifier Module
s s s s
1.5 Watts CDMA IS-95 +38 dBm P1dB 40 dB Gain -30C to +85C
atkins-Johnson's SA1056 Power Amplifier provides exceptional linearity for CDMA digital modulation applications. Utilizing WJ's GaAs amplifiers driving bipolar transistors in the class A output stage, the SA1056 achieves a very high output third-order intercept point combined with superior efficiency.
W
OUTLINE DRAWING
+5 V
+25 V
GND
5.00 .150 .150 4.700
+5 V
+25 V
GND
2.300 3.100 3.75
WATKINSJOHNSON MODEL WJ-SA1056 PCS AMPLIFIER 1930-1990 MHz SERNO-0112
RF OUT
RF IN
4x ] .136 THRU 2X SMA FEMALE
.75
2X .475
The Wireless Edge TM
WJ Wireless Products: 1-800-WJ1-4401 * FAX: 650-813-2447 * e-mail: wireless.info@wj.com.
Watkins-Johnson:
The
Cell
Extenders
Power Amplifiers
SA1056
CDMA 1.5-Watt 1.93 GHz to 1.99 GHz Linear Power Amplifier Module
Specifications
Parameters
Frequency Pout at 1 dB Gain Compression (Min.) Small Signal Gain at +25C Gain Variation over Temperature (-30 to +85C) CDMA Adjacent Channel Power Rejection (ACPR) Measured 885 kHz away from the center frequency in a 30 kHz bandwidth Measured 1.25 MHz away from the center frequency in a 12.5 kHz bandwidth Spurious power level at fo 2.75 MHz in a 1.0 MHz bandwidth, Pout = +32 dBm (Max.) 3rd Order Two-Tone Output Intercept Point, Measured with +25 dBm per Tone (Min.) Harmonic Output with +32 dBm CDMA Output at the Fundamental (Min.) 2nd harmonic 3rd harmonic Noise Figure (Max.) Input and Output Impedance Return Loss, 1.930 to 1.990 GHz Input and Output Load Mismatch Sustainable without Damage (Pin -5 dBm Vsupply +25.0 Vdc) Stability, no spurious output above -50 dBm Supply Voltages Maximum Supply without Damage +25 Volt Supply +5 Volt Supply Maximum DC Current +25 Vdc Supply +5 Vdc Supply DC Power Dissipation (Max.) +25 Vdc Supply +5 Vdc Supply Baseplate Temperature Range 2 Size (Refer to interface control drawing WJ-299010SK) RF Connectors Weight
Typical Level
+38 dBm
Specified Limits
1.930 -1.990 GHz +37 dBm 40 0.75 dB 0.75 dB -45 dB -52 dB -30 dBm +45 dBm Not Guaranteed Not Guaranteed 6.0 dB 50 Ohm -15 dB 3.0:1 Unconditionally stable for all loads +5 and +25 Vdc +26.5 Vdc +6 Vdc
-48 dB -54 dB -35 dBm +47 dBm -45 dBm -35 dBm 5.0 dB
-20 dB
1850 mA 505 mA
2000 mA 560 mA
50 watts 2.8 watts -30 to +85C 0.75" (H), 3.75" (W), 5.00" (L) SMA Female 13.8 oz. 14 oz.
Intermodulation Suppression vs. Output Power Per Tone
-10 Intermod Product Rejection (dBc) -20 -30 -40 -50 -60 -70 -80 15 20 25 30 35 40 IM (Lower) IM (Upper) Third-Order Two-Tone
ACP Rejection vs. Output Power
Adjacent Channel Power Rejection (dB) -40 -45 -50 -55 -60 -65 -70 25 28 31 34 37 40 Output Power (dBm) Frequency = 1960 MHz Tempterature = +25C
ACPR at -885 KHz ACPR at +885 KHz (in 30 KHz BW) ACPR at -1.25 MHz ACPR at +1.25 MHz (in 1.25 KHz BW)
CDMA Power vs. Output Power
0 Power at 2.75 MHz Offset (dBm) -5 -10 -15 -20 -25 -30 25 28 31 34 37 40 Output Power (dBm)
Power at -1.25 MHz Power at +1.25 MHz (in 1.0 MHz BW)
Frequency = 1960 MHz Tempterature = +25C
Note: Offsets and resolution bandwidths Comply with SP-3383. Measured with a Noise/Com CDMA Generator (12 dB peakto-average ratio).
Output Power Per CW Tone (dBm)
Note: 1. CDMA adjacent power and spurious measurements are made using a Rohde & Schwarz SMIQ03 source in an IS-95 forward link mode. 2. This unit is to be mounted on a ground plane and thermal heat sink, with a maximum heat sink temperature of +85C.
The Wireless Edge TM
W A T K I N S - J O H N S O N C O M P A N Y * 3 3 3 3 H i l l v i e w A v e n u e * P a l o A l t o , C A 9 4 3 0 4 - 12 2 3

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