W a t k i n s - J o h n s o n : T h e C e l l E x t e n d e r s Power Amplifiers SA1056 CDMA 1.5-Watt 1.93 GHz to 1.99 GHz Linear Power Amplifier Module ■ ■ ■ ■ 1.5 Watts CDMA IS-95 +38 dBm P1dB 40 dB Gain -30°C to +85°C W 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. OUTLINE DRAWING +5 V +25 V GND 5.00 .150 4.700 .150 +5 V +25 V GND 2.300 WATKINSJOHNSON 3.100 3.75 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 ™ WJ Wireless Products: 1-800-WJ1-4401 • FAX: 650-813-2447 • e-mail: wireless.info @ wj.com. W a t k i n s - J o h n s o n : T h e C e l l E x t e n d e r s Power Amplifiers SA1056 CDMA 1.5-Watt 1.93 GHz to 1.99 GHz Linear Power Amplifier Module Specifications Parameters Typical Level Frequency Pout at 1 dB Gain Compression (Min.) Small Signal Gain at +25°C Gain Variation over Temperature (-30 to +85°C) 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 Third-Order Two-Tone -30 -40 -50 IM (Lower) IM (Upper) -60 -70 -80 15 20 25 30 35 Output Power Per CW Tone (dBm) 40 -45 dB -52 dB -30 dBm +45 dBm -45 dBm -35 dBm 5.0 dB Not Guaranteed Not Guaranteed 6.0 dB 50 Ohm -20 dB -15 dB 3.0:1 Unconditionally stable for all loads +5 and +25 Vdc 1850 mA 505 mA 2000 mA 560 mA 50 watts 2.8 watts -30 to +85°C 0.75” (H), 3.75” (W), 5.00” (L) SMA Female 13.8 oz. 14 oz. CDMA Power vs. Output Power -40 0 Power at 2.75 MHz Offset (dBm) Adjacent Channel Power Rejection (dB) Intermod Product Rejection (dBc) -20 -48 dB -54 dB -35 dBm +47 dBm +26.5 Vdc +6 Vdc ACP Rejection vs. Output Power -10 1.930 -1.990 GHz +37 dBm 40 ± 0.75 dB ±0.75 dB +38 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 Intermodulation Suppression vs. Output Power Per Tone Specified Limits Frequency = 1960 MHz Tempterature = +25°C -45 -50 ACPR at -885 KHz ACPR at +885 KHz (in 30 KHz BW) -55 ACPR at -1.25 MHz ACPR at +1.25 MHz (in 1.25 KHz BW) -60 -65 -70 Frequency = 1960 MHz Tempterature = +25°C -5 Note: Offsets and resolution bandwidths Comply with SP-3383. Measured with a Noise/Com CDMA Generator (12 dB peakto-average ratio). -10 -15 -20 Power at -1.25 MHz Power at +1.25 MHz (in 1.0 MHz BW) -25 -30 25 28 31 34 37 40 25 28 Output Power (dBm) 31 34 37 40 Output Power (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 +85°C. The Wireless Edge ™ 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